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Copyright of Turkish Journal of Trauma & Emergency Surgery / Ulusal Travma ve Acil Cerrahi Dergisi is the property of KARE Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: This study aims to analyze the impact of the COVID-19 pandemic on the clinical, pathological, and surgical characteristics of acute appendicitis (AA) at the University Hospital Centre (UHC) Zagreb. Methods: This retrospective study analyzed demographic, clinical, and surgical data from consecutive AA patients. Data were collected from an electronic database for two periods: 1 January to 31 December 2019 (pre-COVID-19), and 11 March 2020, to 11 March 2021 (COVID-19 pandemic). Results: During the two study periods, 855 appendectomies were performed, 427 in the pre-pandemic, and 428 during the pandemic. Demographic data were comparable between groups. There was statistically no significant difference in the type of appendectomy (p = 0.33) and the median hospital length of stay (3; (2–5) days, p = 0.08). There was an increase in the conversion rate during the pandemic period (4.2% vs. 7.7%, p = 0.03). The negative appendectomy rate and the incidence of perforated AA did not differ significantly (p = 0.34 for both). Conclusions: We did not observe a significant increase in the rate of AA complications during the COVID-19 pandemic at the UHC Zagreb. This may be attributed to two factors: (1) AA was diagnosed and treated as an emergency, which remained available during the pandemic, and (2) diagnostic and therapeutic protocols remained unaltered. We recommend a laparoscopic approach even during the COVID-19 pandemic. [ABSTRACT FROM AUTHOR]

Objectives: Acute appendicitis is the most common non-gynaecological indication for surgical intervention during pregnancy. The aim of this study was to compare perioperative and postoperative results of surgical treatment of acute appendicitis in the early and late stage of pregnancy. Material and methods: This is a retrospective study focused on the evaluation of perioperative and postoperative results of appendectomy in pregnancy. The study included all pregnant patients who underwent laparoscopic or open appendectomy at the University Hospital Ostrava during the observed 10-year period (January 2012–December 2021). The patients were divided into two subgroups according to the stage of pregnancy in relation to the expected viability of the foetus (the viability limit was defined as the 23rd week of pregnancy). Results: In the monitored 10-year period, a total of 25 pregnant patients underwent appendectomy. Comparing the two subgroups of patients, there were no statistically significant differences in any of the admission parameters. Laparoscopy was performed in 100% of the patients in the lower stage of pregnancy (< 23 g.w.) and in 61% of the subgroup of patients with more advanced pregnancy (> 23 g.w.); this difference was statistically significant (p = 0.039). Differences in subgroups regarding duration of surgery, risk of revision and 30-day postoperative morbidity were not statistically significant. In the subgroup of patients < 23 g.w., uncomplicated forms of appendicitis predominated (66%), whereas in the subgroup > 23 g.w., complicated forms predominated (69%); this difference was statistically significant (p = 0.026). When comparing the two subgroups of patients, there was a statistically significant difference in the length of hospitalization (p = 0.006). The mortality rate of the group was zero. Conclusions: The results of the study confirm the fact that advanced pregnancy may be related to complicated forms of appendicitis. Therefore, early appendectomy is still the method of choice. In accordance with the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) recommendations, laparoscopic approach is preferred in pregnant patients, even in advanced pregnancy. [ABSTRACT FROM AUTHOR]

Objectives: To research the associations between fructose-bisphosphate aldolase B (ALDOB) gene polymorphisms and intrahepatic cholestasis of pregnancy (ICP) risk. Material and methods: Whole-genome sequencing (WGS) was performed to detect ALDOB polymorphisms. Five webavailable tools were employed to predict the effect of the site variant on the protein. Protein structure comparisons between the reference and ALDOB-modified samples were performed by SWISS-MODEL and Chimera 1.14rc, respectively. Results: We identified 28 genetic variants in the ALDOB gene. When the cut-off value of minor allele frequency (MAF) of loci was 0.001 in four databases, five missense variants, including rs747604233, rs759204107, rs758242037, rs371526091 and rs77718928, were reserved for subsequent analysis. These variants were absent from the 1029 control individuals. The influence of all five variants on protein function was predicted to be damaging by the abovementioned five prediction software programs. Bioinformatics analysis demonstrated that these five missense variants were highly conserved among vertebrates. Compared to the wild-type protein structure, all five mutated protein structures showed a slight change in the chemical bond lengths of the enzyme activity domains. The combined clinical data indicate that the variant group had a significantly older age (p = 0.038), a higher level of indirect bilirubin (IDBIL, p = 0.033), and lower counts of white blood cells (WBCs, p = 7.38E-05) and platelets (PLTs, p = 0.018) than the wild-type group. Conclusions: This is the first study to examine the associations between ALDOB polymorphisms and ICP disease in 249 Chinese patients with ICP. Our present study expands the understanding of the pathogenesis of ICP. [ABSTRACT FROM AUTHOR]

Background: Complicated appendicitis (appendicitis with abscess, perforation, or generalized peritonitis) poses a significant burden on healthcare systems, with incidence up to 28–29%. Current management options include antibiotic therapy and up-front surgery, antibiotic therapy and percutaneous drainage, or antibiotic therapy alone. There is no consensus on treatment guidelines in current literature. This study aims to better define treatment algorithms for patients presenting with acute complicated appendicitis by evaluating clinical outcomes in those treated with or without surgery. Methods: We performed a single-institution, retrospective review of 220 adult patients (≥ 18 years old) treated for acute complicated appendicitis from January 2017 to June 2022. Demographic and clinicopathologic variables were collected and analyzed. We compared patients who were managed non-operatively versus operatively. Regression modeling was used to determine factors associated with non-operative management (NOM) and those predictive of failure of NOM. Results: Our analysis showed 26.3% patients with acute complicated appendicitis underwent NOM (n = 58), versus 73.6% underwent operative management at index admission (n = 162). Within the NOM group, 55.1% patients were treated with antibiotics alone (n = 32) versus 44.8% with percutaneous drainage (n = 26). Within the operative cohort, 88.7% of patients underwent appendectomy (n = 142). Age, body mass index, comorbidities, vital signs and laboratory values on admission were similar between both groups. Clinical factors predictive of initial NOM were perforation (OR 7.9, 95% CI 3.7–16.5) and phlegmon (OR 6.3, 95% CI 2.8–14.1) at presentation. Clinical factors predictive of failure of NOM requiring surgery on index admission or within 30 days was larger abscess and/or phlegmon size (OR 1.76, 95% CI 1.0–3.0). Conclusion: There may be a role in identifying clinical factors in patients with complicated appendicitis that favor non operative versus operative management. Larger abscess and/or phlegmon size could be a predictor of failure of NOM. [ABSTRACT FROM AUTHOR]

Introduction. Hostile abdomen is a surgical condition characterized by loss of space between organs and structures in the abdomen. Negative pressure therapy use has been widely described in adults; the case is not the same for pediatric patients. The goal of this study is to present short-term results of negative pressure therapy use in pediatric patients with hostile abdomen due to different etiologies. Materials and methods. Pediatric hostile abdomen patients (<18 years) who were treated Negative pressure therapy using ABTHERA were identified and retrospectively reviewed. Results. 7 patients were included in this study. Median age was 16 (range: 9-17 yo). 5 (71.4%) were male and 2 (28.6%) females. 3 (43%) had significant past medical/surgical history (Systemic Lupus Erythematosus, complicated appendectomy and ventriculoperitoneal- shunt). The device was set at a continuous pressure ranging from --50 to --125 mmHg. Pre and post-surgical findings were reported using Bjork's classification. Devices were replaced every 4-7 days (median 5 days). Total amount of replacements was 1-4 (median 3). 5 (71.4%) patients required invasive mechanical ventilation during use of Negative pressure therapy based on clinical status. 4 (57%) patients received enteral nutrition. 1 (14%) patient required re-intervention posterior to definitive closure due to retroperitoneal abscess development. Outcome, evaluated by (oral tolerance, bowel movement and absence of pain), was favorable in all patients. Conclusion. Negative pressure therapy devices generate favorable results in hostile abdomen in pediatric population but further information is needed to assess pressure settings and device replacement frequency. [ABSTRACT FROM AUTHOR]

Low‐grade appendiceal mucinous neoplasm (LAMN) is a rare epithelial malignancy of the appendix. If it perforates the abdominal cavity, it can cause a serious clinical syndrome called pseudomyxoma peritonei. In the present case, we laparoscopically removed a LAMN encountered during risk‐reducing salpingo‐oophorectomy (RRSO). The patient was a 53‐year‐old woman who was diagnosed with hereditary breast and ovarian cancer syndrome. RRSO was planned, and magnetic resonance imaging revealed a large cystic tumor in the right lower abdomen. We expected an ovarian cyst; however, it was a primary tumor of the appendix. Partial cecal resection was performed laparoscopically by a surgical oncologist. The pathological diagnosis was LAMN. Gynecologists may encounter this disease incidentally. Mucinous appendiceal neoplasm (MAN) may be encountered during RRSO. If a right lower abdominal mass is found near a normal ovary preoperatively, gynecologists should consider MAN as well as paraovarian cyst. [ABSTRACT FROM AUTHOR]

Background Appendicectomy is the standard surgery to remove an inflamed appendix and prevent peritonitis and other serious complication of a perforated appendix. Relieving postappendicectomy pain can help in early mobility and rehabilitation. The study compares the efficacy of using ketamine versus bupivacaine for surgical site infiltration for postoperative analgesia following appendicectomy. Methods We enrolled 60 patients aged between 14 and 50 with ASA status class I and II undergoing uncomplicated appendicectomy under general anesthesia. Patients were randomly divided into two equal groups where group 1 received surgical site infiltration using plain bupivacaine at the end of the operation while group 2 received surgical site infiltration using ketamine. The visual analog scale (VAS) was estimated at zero, 1, 2, 6, 12, and 24 h after surgery. The time until the first need for analgesia and the overall analgesic consumption were recorded in both groups. Any adverse effects in the recovery room were recorded. Postoperative hemodynamics were also recorded every 2 h for up to 24 h. Results The VAS score at 1, 2, 6, and 12 h was significantly lower in the ketamine group than in the bupivacaine group (P < 0.001). The time until the first need for analgesia was significantly prolonged in the ketamine group than in the bupivacaine group (P value < 0.001). The total ketorolac and morphine consumption in the first 24 h postoperatively was significantly lower in the ketamine group than in the bupivacaine group (P value < 0.001). Postoperative nausea and vomiting (PONV) occurred in five (16.667%) patients in the bupivacaine group and in six (20%) patients in the ketamine group. Conclusions Surgical site infiltration using either ketamine or bupivacaine can be used safely and efficiently to control acute postoperative pain and decrease the total consumption of systemic analgesics; however, ketamine infiltration seems superior in this field. [ABSTRACT FROM AUTHOR]

Intestinal invagination occurs when an intestinal segment is introduced into another segment. The appendicular presentation is less common and affects predominantly infants. The diagnosis is corroborated during the surgical intervention which consists of de-invagination followed by surgical removal of the appendix, if the latter is not possible then a wide resection or right hemicolectomy is indicated. We present the case of a 4-year-old girl who attended with a history of abdominal pain, anorexia, vomiting and fever; an abdominal ultrasound showed intestinal agglomeration and a rounded mass. The surgical findings included appendicular invagination that affected the cecum, the lesion was resected until the ascending colon. An ileostomy was performed, the anatomopathological findings indicated necrosis of the appendix. Three months later the normal intestinal transit was restored. Appendicular intussusception has non-specific symptoms and could be mortal in Peru. A detailed clinical history may help in diagnosing and offering proper treatment. [ABSTRACT FROM AUTHOR]

Copyright of Saúde Coletiva is the property of MPM Comunicacao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

(1) Background: Among all possible causes, foreign bodies are the rarest cause of appendicitis in the pediatric population. In the majority of cases, ingested foreign bodies pass through the gastrointestinal tract without causing symptoms. However, those foreign bodies that pass through the lumen of the vermiform appendix cannot re-enter the colon and may cause acute appendicitis. So far, various foreign bodies have been described to enter the appendix and cause acute appendicitis, such as seeds, needles, toothpicks, plant material, or even hair. Tooth or dental implants as a cause of acute appendicitis have been described in only a few cases. To our knowledge, this is the first described case of the tooth causing acute appendicitis in the pediatric population. (2) Case presentation: A 14-year-old male patient presented to the emergency department complaining of pain in the right lower quadrant of the abdomen and vomiting that persisted for approximately 24 h. Until then, the patient was healthy and had no concomitant diseases. Physical examination revealed guarding and tenderness in the right lower abdominal quadrant. The white blood cell count was 17.1 × 109/L with a neutrophil count of 91.1% and a C-reactive protein of 39.3 mg/dL. Ultrasonography of the abdomen revealed a thickened, inflamed appendix with a diameter of 11 mm and free periappendicular fluid. A 9 × 6 mm foreign body at the base of the appendix was visualized. The patient was diagnosed with acute appendicitis, and an emergency laparoscopic appendectomy was performed on the same day. Intraoperatively, gangrenous appendicitis was noted and removed without complications. Upon examination of the removed specimen, it was determined that the patient's appendicitis had been caused by an ingested tooth. As it later turned out, the patient had broken a lateral incisor while playing sports the day before admission without knowing that he had swallowed it. The patient recovered well and was discharged the day after surgery. (3) Conclusion: Although an extremely rare event, acute appendicitis can be caused by a swallowed tooth. This case highlights the importance of a thorough history in pediatric patients who present to the emergency department with suspected acute appendicitis to determine if there is a precipitating event that may have caused acute appendicitis. [ABSTRACT FROM AUTHOR]

Appendix vermiformis is found in various anatomical localizations. Localization of the appendix vermiformis has been suggested to affect the clinical findings and outcomes of acute appendicitis. Aimed at investigating the effect of retrocecal localization of appendix vermiformis on the prognosis of acute appendicitis today. This study was started in August 2018 and finished in August 2021. Adult patients of both sexes who were operated in general surgery clinic with a pre-diagnosis of acute appendicitis were included in the study. Anatomic localization of appendix vermiformis were divided into two parts as retrocecal localizations and non-retrocecal localizations. The forms of appendicitis, postoperative complications, and length of hospitalization obtained from retrocecal and non-retrocecal localizations were compared and evaluated. A total of 776 patients were included in the study. Retrocecal localization was found in 15%, and non-retrocecal in 84.9% of the patients. The rate of acute appendicitis was 65.8% in retrocecal localization, 83.1% in non-retrocecal localization, perforated appendicitis at 31.6% in retrocecal localization and 11.2% in non-retrocecal localization. The perforated appendicitis rate was significantly higher in retrocecal localizations (p=.0001). Although postoperative complications were 5.1% in retrocecal appendicitis and 2.4% in non-retrocecal appendicitis, there was no significant difference between them in terms of postoperative complications (p=.105). The mean length of hospital stay was 2.4 days for appendicitis with retrocecal localization and 1.7 days for non-retrocecal localizations. The mean length of hospital stay was also significantly higher in retrocecal localizations (p=.0001). In conclusion, both perforated appendicitis rates and the mean length of hospital stay were higher in appendicitis with retrocecal localization. Therefore, appendicitis with retrocecal localization still negatively affects the prognosis of acute appendicitis today. [ABSTRACT FROM AUTHOR]

Large B-cell lymphomas (LBLs) comprise a genetically heterogeneous group of clinically aggressive non-Hodgkin lymphomas, frequently exhibiting overlapping features with diffuse large B-cell lymphoma and Burkitt's lymphoma. We report a case of a 24-year-old, previously healthy male with a classical clinical presentation of acute appendicitis. The pathologic examination discovered a large B-cell lymphoma with MYC and BCL6 rearrangements in the excised appendix. The patient was assigned Stage IEA, IPI = 0 and received chemotherapy. This case depicts a very uncommon occurrence of fully localized LBL in a patient of an unusually young age and clinical presentation for this type of lymphoma., (© 2024 Scandinavian Societies for Pathology, Medical Microbiology and Immunology.)

An appendiceal mucocele is a rare clinical entity often mimicking that of acute appendicitis in a majority of cases leading to incidental intraoperative findings. Nevertheless, appropriate diagnosis is vital prior to surgery to prevent complications such as pseudomyxoma peritonei. This report details a case of a man in his 70s, who was admitted to the emergency department with right iliac fossa pain with imaging showing wall thickening of the caecum and the ascending colon. During surgery, a calcified appendix raised the suspicion of a neoplastic process leading to a right hemicolectomy. The histology revealed a low-grade appendiceal mucinous neoplasm., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2024. No commercial re-use. See rights and permissions. Published by BMJ.)

Competing Interests: The authors declare that they have no conflict of interest.

Competing Interests: The authors declare that they have no conflict of interest.

Competing Interests: The authors declare that they have no conflict of interest.

Introduction: Appendicitis is a common cause of acute abdomen. Although many guidelines exist to aid in the preoperative diagnosis of appendicitis in children, histology remains the definitive diagnostic method. Histological diagnosis is premised on the presence of inflammatory infiltrates beyond the mucosa and involving the submucosa and muscularis propria. Involvement of the serosa is often associated with peritonitis. Appendices with no pathology have uncommonly been reported with the clinical diagnosis of appendicitis., Objective: We present the pathological features of appendicitis in 32 children over two years., Methods: Pathology Department records of consecutive appendectomies in children were retrieved over two years. The gross descriptions were documented and histological assessment of the H&E stained slides was done. Notes were made on the appendix length, obvious gross abnormalities and perforation; histological presence of mucosal lymphoid hyperplasia and ulceration, predominant inflammatory cell type, presence of reparative changes in the submucosa, and involvement of the peritoneum. Appendectomy performed as an addition to other therapies were excluded., Result: Thirty-two children had appendectomies for acute appendicitis, their ages ranged from 4 months to 17 years (median 14.5 years) and there were 12 females (37.5%) and 20 males (62.5%). Appendicitis could be grouped into simple (acute appendicitis without perforation, suppuration, or peritonitis) 11 (34.4%), complicated (acute appendicitis with perforation, gangrene, and/or suppuration) 14 (43.7%), subacute/ chronic (acute appendicitis with reparative changes or non-specific chronic inflammation) 7 (21.9%). All cases had associated mucosal lymphoid hyperplasia. No negative appendix was seen., Conclusion: Appendicitis in children is often complicated before surgical intervention., Competing Interests: The Authors declare that no competing interest exists, (Copyright © 2024 by West African Journal of Medicine.)

A 54-year-old woman was referred to our hospital because of abnormal colonoscopic findings, including a submucosal protuberance at the appendiceal root. A biopsy showed no malignant findings. Computed tomography revealed a 20-mm cystic lesion with thick walls at the appendiceal root, suggestive of an appendiceal mucocele. Laparoscopic ileocecal resection was performed based on the preoperative diagnosis of a suspected mucinous appendiceal neoplasm. The resected specimen showed a closed appendiceal orifice surrounded by a mucus-containing submucosal tumor. Histopathologically, the appendiceal epithelium was circumferentially inverted in the appendiceal root, with hyperplasia of the submucosal connective tissue. No atypical epithelium was observed. We hypothesized that repeated partial invagination of the appendiceal root caused submucosal hyperplasia and drainage disturbance of the appendiceal content, leading to the development of a mucocele., Competing Interests: Human/animal rightsAll procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008(5).Informed consentInformed consent was obtained from the patient included in the study.Authors’ contributionsAll authors contributed to the study conception and design. Material preparation and data collection were performed by Shuhei Asai, Hideo Miyake, Asayo Kato, Norihiro Yuasa, Rio Takada, and Masahiko Fujino. The first draft of the manuscript was written by Shuhei Asai, and all authors read and approved the manuscript.Conflict of interestThe authors declare that they have no conflict of interest.Funding sourceThis work is supported by Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital Research Grant to SK (NFRCH 23-0008). The funder had no role in study design, data collection, data analysis, decision to publish, or preparation of the manuscript.

Objectives: This study aims to ascertain the prevalence of appendiceal endometriosis (AppE) in patients diagnosed with diaphragmatic endometriosis (DiaE), compare it with the prevalence in patients without DiaE, and delineate the anatomical distribution of endometriotic lesions within these cohorts., Study Design: Comparison of the characteristics of patients with AppE and DiaE with the characteristics of patients with abdominal endometriosis without diaphragmatic involvement, in a prospective cohort study., Setting: Tertiary referral center; endometriosis center., Patients: A cohort of 1765 patients with histologically confirmed endometriosis INTERVENTIONS: Evaluation of correlations between demographic, clinical, and surgical variables of AppE patients with DiaE and without DiaE. We performed appendectomies selectively, in the presence of gross abnormalities of the appendix, such as endometriotic implants, edema, tortuosity, and discoloration of the organ., Measurements: Patients' characteristics were evaluated using basic descriptive statistics (chi-square test or Fisher's exact test). A logistic regression analysis was performed to evaluate the relationship (hazard ratio) between patient characteristics and the presence of DiaE and AppE., Main Results: Within a cohort of 1765 patients with histologically confirmed endometriosis, 31 were identified with AppE (1.8 %), and 83 with DiaE (4.7 %). The prevalence of DiaE was significantly elevated at 30.1 % (25/83), among patients with AppE compared to those without AppE, who showed a DiaE prevalence of 7.2 % (6/83). The calculated odds ratio for DiaE given the presence of AppE was 5.5, 95 % CI 2.1-14.4, p = 0.0004, and risk ratio was 4.2, 95 % CI 1.8-9.6, p = 0.0008, indicating a profound association. Surgical interventions did not lead to significant perioperative or postoperative complications. In the group with DiaE, the left ovary was affected in 96 % of cases (24/25), p < 0.05, the right ureter in 80 % of cases (20/25), p < 0.01 (in 19/25 only the serosa was affected, due to external compression of an endometriotic nodule of the parametrium). Concurrent AppE and right diaphragm was found in 92 % of cases (23/25 patients), p < 0.001. The concurrent presence of DiaE and AppE was often associated with severe endometriosis, rASRM IV 72 % OR = 3, 95 % CI (1.216-7.872)., Conclusion: The investigation delineates a marked association between AppE and DiaE, with an odds ratio of 5.5 and risk ratio of 4.2, suggesting a markedly increased likelihood of DiaE in patients with AppE. These statistics significantly substantiate the notion that AppE can serve as a predictive marker for DiaE, underscoring the necessity for a meticulous intraoperative assessment of diaphragmatic regions in patients diagnosed with AppE. The absence of a significant correlation between the depth of DiaE infiltration and the presence of AppE implies that the detection of AppE should prompt a thorough search for DiaE, regardless of the perceived severity of the endometriosis or preoperative results of diaphragmatic MRI., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Aim: Acute appendicitis (AA) is treated primarily surgically with histopathology being the gold standard for confirmation of appendicitis and reported rates of negative appendicectomies (NA) ranging between 3.2% and 19% worldwide and 15.9-20.6% in the UK. NA rates are frequently used to identify poor performing centers as part of a Model Health System and form an integral part of appendicitis scoring systems. This study aims to evaluate the prevalence of negative appendicectomies within our institution and critically analyze the appropriateness of its use as a quality metric and its impact on clinical practice and research., Patients and Methods: Data analysis from a prospective dataset of pediatric appendicitis patients between 2015 and 2021 in a tertiary center in the UK was performed. Detailed analysis of negative appendicectomies was performed and further stratified by two distinct age and gender groups looking at the incidence of NA and the classification of non-histologically normal appendix specimens., Results: In our series, 819 patients met inclusion criteria, 736 (89.9%) had acute appendicitis. Our overall institutional negative appendicectomy rate was 10.1% (83 patients) with the breakdown as follows: 65 histologically normal appendix (7.9%), 10 Enterobius vermicularis, 3 eosinophilic appendicitis, 2 neoplasms, 1 isolated faecolith, 1 fibrous obliteration of the lumen, and 1 peri-appendiceal inflammation., Conclusion: Our negative appendicectomy rate is below established UK pediatric NA rates. This rate ranges from 7.9% to 10.1% depending on the definition of NA utilized. A single standard pathological definition for histological acute appendicitis is required when being used as a comparative quality metric. Centers engaged in clinical research should be aware of variations in NA definitions both in scoring systems and individual centers to avoid skewing derived results., Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Background Transversus abdominis plane (TAP) block is a newly effective peripheral block which involving mainly the nerves of the anterior abdominal wall in lower abdominal surgery. The present study aimed to evaluate the postoperative analgesic efficacy of right-sided ultrasound guided TAP block by using 20 millimeters of bupivacaine 0.25% in patients undergoing open appendicectomy. Patients and methods After taking informed consent, fifty patients (ASA I and II) undergoing open appendicectomy were randomized into 2 groups (25 each). After induction of general anesthesia; Group B received right side ultrasound guided TAP block using 20 ml bupivacaine 0.25%. Group S (standard group) received general anesthesia without TAP block. Postoperative analgesia by ketorolac and paracetamol was given as required. Postoperative VAS at rest and movement, intra and post operative hemodynamics, analgesic requirements and their side effects were recorded for 24 hours. Results A significant reduction of VAS up to twelve hours postoperatively detected in the TAP block group with bupivacaine 0.25%. There was also significant elongation of time to the first analgesia, significant reduction in number of rescue analgesics, as will as there were significant decrease in nausea, vomiting and pruritus between two groups. Conclusion Right-sided ultrasound guided TAP block using 20 ml of bupivacaine 0.25% had effective postoperative analgesia for twelve hours after the open appendicectomy. [ABSTRACT FROM AUTHOR]

Copyright of Turkish Journal of Trauma & Emergency Surgery / Ulusal Travma ve Acil Cerrahi Dergisi is the property of KARE Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To evaluate the feasibility, safety and efficacy of robot-assisted laparoscopic modified ureteroplasty using a lingual mucosa graft (LMG) or an appendiceal flap (AF) for complex ureteral strictures and summarize our experience., Methods: A total of 16 patients with complex ureteral strictures (range: 1.5-5 cm) who underwent robotic-assisted laparoscopic-modified ureteroplasty and were admitted to our hospital from May 2022-October 2023 were retrospectively analyzed. We used modified presuture methods in patients who needed the posteriorly augmented anastomotic technique to reduce anastomotic tension. Perioperative variables and outcomes were recorded for each patient., Results: The operation under robot-assisted laparoscopy was successfully performed in all sixteen patients (12 with LMG ureteroplasty and 4 with AF ureteroplasty) without conversion to open surgery. The mean length of the ureteral structure was 2.90 ± 0.90 cm (range: 1.5-5 cm), the mean operation duration was 209.69 ± 26.74 min (range: 170-255 min), the median estimated blood loss was 75 (62.5) ml (range: 50-200 ml), and the duration of postoperative hospitalization was 10.44 ± 2.10 d (range: 7-14 d). The follow-up time in this group was 6 ~ 21 months. The success rate of the surgery was 100%., Conclusion: Robot-assisted laparoscopic modified ureteroplasty using AF or LMG is a safe and feasible operation for complex ureteral strictures and deserves to be popularized., (© 2024. The Author(s).)

Introduction: Appendicitis is a common cause of acute abdomen. Rarely, it may form adhesions to nearby structures, complicating surgeries, especially when involving vascular structures such as the internal iliac artery, potentially causing severe intraoperative hemorrhage., Case Presentation: A 65-year-old Middle Eastern male presented with abdominal pain and anorexia for 5 days. Examination and imaging confirmed acute appendicitis with complications. Additionally, a large pelvic mass was noted. During surgery, severe bleeding was encountered due to an adhesion between the appendix and the right internal iliac artery, managed by ligating the artery. The patient recovered well and was discharged in stable condition. Histopathology confirmed the diagnosis., Conclusion: This case highlights a rare vascular complication of appendectomy due to abnormal adhesions between the appendix and the internal iliac artery, associated with a large pelvic mass. This study emphasizes the need for thorough preoperative evaluation and careful surgical planning in patients with unusual anatomical variations or specific underlying conditions such as neurofibromatosis. Early recognition and strategic management of vascular adhesions are essential to optimize patient outcomes in appendectomies complicated by such rare scenarios., (© 2024. The Author(s).)

Background: Acute appendicitis is a common cause of acute abdominal pain necessitating surgical intervention. While the traditional treatment has been urgent appendectomy, recent studies suggest that an antibiotics-first approach can be safe for uncomplicated cases. Classifying appendicitis into uncomplicated and complicated categories is crucial for guiding treatment decisions and predicting patient outcomes. This study aims to evaluate the distinct imaging findings associated with uncomplicated appendicitis and its complicated subtypes-phlegmonous, gangrenous, and perforated appendicitis-to aid in differential diagnosis., Methods: This retrospective observational study was conducted from January 2014 to December 2023 and included 1,250 patients (492 women, 758 men) who underwent an appendectomy with available pathology results. After excluding 56 patients with normal pathology, 52 with non-appendicitis pathologies, and 48 with inaccessible computed tomography (CT) images, 1,094 patients were analyzed. CT images were evaluated for appendiceal diameter, wall thickness, cecal wall thickness, periappendiceal fat stranding, effusion, lymphadenopathy, intraluminal and free periappendiceal air, mucosal hyperenhancement, and the presence of appendicolith., Results: The diameter of the appendix, along with the presence of periappendiceal air, effusion, and intraluminal appendicolith, were significantly higher in the perforated appendicitis group compared to other groups (p<0.05). Periappendiceal fat stranding, evaluated as a binary variable, did not show significant differences among the groups. Appendiceal wall thickness was higher in the perforated group and lower in the non-perforated gangrenous group compared to the uncomplicated group (p<0.05). No significant correlation was found for mucosal hyperenhancement between the appendicitis subgroups. Intraluminal air, though normal in a healthy appendix, was a specific predictor of complicated appendicitis when combined with other findings., Conclusion: This study provides a detailed analysis of distinct imaging findings associated with uncomplicated and complicated appendicitis. Key differentiators such as appendiceal diameter, periappendiceal air, effusion, and intraluminal appendicolith are crucial for accurate diagnosis. The findings highlight the importance of these parameters in distinguishing various types of appendicitis, offering valuable insights for clinical practice. Future prospective studies and advanced imaging techniques are needed to validate these findings and enhance the diagnosis and management of acute appendicitis and its complications.

Objective: To determine the diagnostic and therapeutic value of contrast-enhanced ultrasound-guided endoscopic retrograde appendicitis treatment (ERAT) in patients with uncomplicated appendicitis., Methods: A retrospective analysis was performed on clinical and ultrasound data collected from 105 pediatric patients with uncomplicated appendicitis between January 2020 and December 2023. The ultrasound findings before and after treatment, as well as postoperative follow-up and recurrence rates, were summarized and analyzed., Results: Successful intubation was achieved in 96 patients (91.4%). The conventional ultrasound appendix visualization rate was 39.6% (38/105), while the appendix visualization rate after contrast-enhanced ultrasound-guidance was 75% (72/105). Contrast-enhanced ultrasound revealed various appendiceal morphologic changes in 89 patients, such as twisting, tortuosity, stiffness, rough inner wall, dilated diameter, and narrowing of the lumen. Additionally, local filling defects, which indicated the presence of fecal stones or debris deposition, were noted in 68 patients. No leakage of the contrast agent occurred. Post-treatment evaluation showed improvement in appendiceal diameter, lumen, and filling defects (P < .01). The follow-up rate was 82 of 89 patients (92.1%), all of whom recovered well without a recurrence. The recurrence rate was 7.9% (7/89). Among the patients with recurrences, five patients resolved after medical treatment and two patients recovered after surgical treatment., Conclusion: Contrast-enhanced ultrasound-guided ERAT for uncomplicated appendicitis is safe and effective. Specifically, the appendix is increased, which facilitates an evaluation of therapeutic effectiveness. ERAT serves as a valuable supplementary modality to determine the need for surgical treatment of acute appendicitis, which is of significant clinical value., (© 2024 American Institute of Ultrasound in Medicine.)

Objective: To evaluate the viability of robot-assisted appendiceal ureteroplasty as an innovative surgical approach for the reconstruction of ureteral strictures in cases where traditional methods are unsuitable., Methods: We conducted a retrospective review of 14 patients who underwent robot-assisted appendiceal ureteroplasty for right-sided ureteral stricture disease at three academic centers between March 2018 and November 2022. Patients were selected based on stricture characteristics, tissue quality, and the need for tissue transfer techniques. Surgical outcomes, including stricture-free rates, renal function, and complication rates, were analyzed., Results: The median patient age was 63years, with a balanced gender distribution. The median stricture length was 4.75 cm. The majority of strictures were located in the proximal ureter (50%). Surgical approaches included appendiceal onlay flaps (71.4%) and interposition flaps (28.6%). The median operative time was 268 minutes, with an average estimated blood loss of 75 mL. Postoperatively, ureteral patency was achieved in 92.9% of patients. Two patients (14.3%) experienced urinary tract infections requiring readmission. There was no significant change in serum creatinine levels postoperatively. Hydronephrosis grade significantly improved following surgery (P = .025)., Conclusion: Robot-assisted appendiceal ureteroplasty is a safe and effective technique for managing ureteral strictures. It offers a high success rate with minimal complications, making it a valuable addition to the urologic surgeon's armamentarium for complex ureteral reconstructions., Competing Interests: Declaration of Competing Interest The authors have no conflict of interest to declare., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)

As robot-assisted laparoscopic techniques continue to advance, becoming increasingly complex and refined, there has been significant progress in the minimally invasive treatment of ureteral strictures. This abstract aims to provide an overview and description of various surgical techniques that utilize robots for repairing ureteral strictures. We have summarized the progression of these surgical methods and highlighted the latest advancements in the procedures. When compared to open surgery, robot-assisted reconstruction techniques demonstrate superior functional outcomes, fewer postoperative complications, and a faster recovery in the treatment of ureteral strictures. This abstract aims to provide an overview and description of various surgical techniques utilizing robots to repair ureteral strictures. Robotic ureteral stricture correction has emerged as a valuable therapeutic option, particularly when endoscopic procedures are not feasible. Compared to traditional open surgery, robotic methods exhibit superior therapeutic effectiveness, fewer postoperative complications, and accelerated recovery. Reconstructive procedures such as reimplantation, psoas hitch, Boari flap, ureter-to-ureter anastomosis, appendix graft, buccal mucosa graft (BMG), ileal transplantation, or kidney autotransplantation can be performed depending on the extent and location of the stricture. Robotic surgical techniques also offer advantages, such as an expanded field of vision and the incorporation of supplementary technologies such as FireflyTM, indocyanine green (ICG), and near-infrared fluorescence (NIRF) imaging. However, further long-term, multicenter investigations are necessary to validate the positive findings reported in existing case series. Compared with open surgery, robot-assisted reconstruction techniques yield superior functional outcomes, fewer postoperative complications, and accelerated recovery for the treatment of ureteral strictures., (© 2024. The Author(s).)

Background: The diagnosis and management of fever of unknown origin pose significant challenges in the field of infectious diseases, as it is influenced by various factors. Infectious diseases have long been recognized as the primary etiology of fever of unknown origin. However, not all infectious diseases can definitively identify the causative pathogen and infection sites., Case Presentation: we present a case report of an individual with fever, nausea, and anorexia but did not report any abdominal pain. Physical examination revealed no signs of abdominal tenderness. Repeated imaging studies including enhanced CT and color US of the appendix, only one color US suggested the possibility of appendicitis. Despite effective anti-infective treatment, the patient continued to experience low-grade fever, leading to the decision for laparoscopic exploration and subsequent appendectomy. Pathological findings confirmed the presence of appendicitis. After the surgical procedure, the patient's temperature and infectious markers returned to within normal range, ultimately leading to a diagnosis of appendicitis., Conclusions: The atypical symptoms and signs, along with the negative imaging results, contribute to the under diagnosis of appendicitis and the progression of fever of unknown origin, thereby exacerbating the physical, mental, and economic burden on patients. Consequently, there are valuable insights to be gained regarding the management of both appendicitis and fever of unknown origin., (© 2024. The Author(s).)

A 71-year-old woman was found to have submucosal tumor-like lesion on colonoscopy (CS) before gastric surgery, and computed tomography (CT) showed a 12-mm structure at the base of the appendix. The lesion could not be clearly detected on CT nine months later, but it had enlarged again on CT one year later; therefore, CS and endoscopic ultrasound (EUS) were performed. The lesion was determined to be cystic with viscous contents, and laparoscopic appendicectomy was performed. This is the first report of low-grade appendiceal mucinous neoplasm (LAMN) diagnosed by a histopathologic examination of a resected specimen showing shrinkage and re-expansion of the appendix.

To analyze the clinical characteristics of appendiceal orifice polyps and the effect of endoscopic super minimally invasive treatment. A retrospective analysis was conducted on the general situation (age and sex), the classification of appendiceal orifice polyps, the treatment method under endoscope, postoperative pathology and postoperative complications in patients who underwent resection of appendiceal orifice polyps at the Peking University First Hospital and the First Medical Center of the PLA General Hospital from January 1, 2022, to December 31, 2023. A total of 47 patients were included, consisting of 28 males and 19 females, with 35-86 (61±12) years. Appendiceal orifice polyps were classified into four types: type 0 (14 cases), type 1 (15 cases), type 2 (12 cases), and type 3 (6 cases). Among the endoscopic morphologies, 22 cases were granular laterally spreading tumors. Endoscopic mucosal dissection was performed in 37 cases. Postoperative appendiceal stent placement was performed in 1 case. The pathological types of polyps included adenoma in 15 cases, high-grade intraepithelial neoplasia in 10 cases, intramucosal carcinoma in 4 cases, submucosal carcinoma in 5 cases, inflammatory polyps in 1 cases, and sessile serrated lesion in 12 cases. Curative resection was performed in 44 cases. There were no postoperative complications such as bleeding, perforation, or acute appendicitis. The pathology of appendiceal polyps is mostly precancerous lesions, and the treatment scheme of endoscopic super minimally invasive resection is both safe and effective.

Objective: To assess the prevalence of endometriosis of the appendix and the association with other pelvic localizations of the disease and to provide pathogenesis hypotheses., Methods: Monocentric, observational, retrospective, cohort study. Patients undergoing laparoscopic endometriosis surgery in our tertiary referral center were consecutively enrolled. The prevalence of the different localizations of pelvic endometriosis including appendix involvement detected during surgery was collected. Included patients were divided into two groups based on the presence of appendiceal endometriosis. Women with a history of appendectomy were excluded., Measurements and Main Results: Four hundred-sixty patients were included for data analysis. The prevalence of appendiceal endometriosis was 2.8%. In patients affected by endometriosis of the appendix, concomitant ovarian and/or bladder endometriosis were more frequently encountered, with prevalence of 53.9% (vs 21.0% in non-appendiceal endometriosis group, p = 0.005) and 38.4% (vs 11.4%, p = 0.003), respectively. Isolated ovarian endometriosis was significantly associated to appendiceal disease compared to isolated uterosacral ligament (USL) endometriosis or USL and ovarian endometriosis combined (46.2% vs 15.4% vs 7.7%, p < 0.001). Poisson regression analysis revealed a 4.1-fold and 4.4-fold higher risk of ovarian and bladder endometriosis, respectively, and a 0.1-fold risk of concomitant USL endometriosis in patients with appendiceal involvement., Conclusion: Involvement of the appendix is not uncommon among patients undergoing endometriosis surgery. Significant association was detected between appendiceal, ovarian, and bladder endometriosis that may be explained by disease dissemination coming from endometrioma fluid shedding. Given the prevalence of appendiceal involvement, counseling regarding the potential need for appendectomy during endometriosis surgery should be considered., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Human appendix is critical for the maintenance of intestinal homeostasis. Appendicectomy has been the optimal treatment of acute appendicitis, yet the cancer incidence after appendix removal remains unclear. In this territory-wide retrospective cohort study, adult participants who underwent appendicectomy from 2000 to 2018 were retrieved from a population database (n = 43,983), while matched reference participants were retrieved as controls (n = 85,853). After appendicectomy, the overall cancer risk was significantly increased (subdistribution hazard ratio (SHR) = 1.124) compared to the non-appendicectomy group. Appendicectomy-treated males had higher cancer risk than males without appendicectomy (SHR = 1.197), while such difference was not observed in female participants. Significant increase in cancer risk was also observed in elder participants (age >60) with appendicectomy (SHR = 1.390). Appendicectomy was positively correlated with the risk of digestive tract and respiratory cancers including colon (SHR = 1.440), pancreas (SHR = 1.930), and trachea, bronchus, and lung (SHR = 1.394). In contrast, the risk of liver cancer was markedly decreased after appendicectomy (SHR = 0.713). In conclusion, we reported the association of appendicectomy with subsequent cancer incidence. These findings highlight the potential complication after appendix removal and the necessity of post-operative management to monitor and prevent long-term adverse events., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Objectives: Surgeons may encounter a grossly normal appearing appendix in a patient with clinically suspected appendicitis. The purpose of this study is to determine the practice of pediatric surgeons in Saudi Arabia when this is encountered, and determine the reasons behind their decision making., Methods: An electronic survey was sent to all pediatric surgeons in Saudi Arabia. Data points collected included demographics, peri-operative imaging preference, and personal practice when managing an intra-operative grossly normal appendix in symptomatic children., Results: A total of 105 responses were obtained yielding a response rate of 33.8% The majority of respondents, 88 (87.1%) would remove the appendix while 13 (12.9%) would leave it in situ. The most common reason for removing the appendix was the possibility of microscopic/Endo appendicitis 71 (34.8%) while the most common reason for leaving the appendix in situ was the possible usage of the appendix for reconstructive benefits in the future 11 (50%). The overwhelming majority 87 (86.1%) felt that there were no sufficient guidelines on removal of the normal appearing appendix at the time of surgery for suspected acute appendicitis., Conclusion: The majority of pediatric surgeons in Saudi Arabia would proceed with an appendectomy when an intra-operative grossly normal appendix is seen in patients suspected to have acute appendicitis. There is a clear lack of published pediatric guidelines and large studies to guide the correct course of action., (Copyright: © Saudi Medical Journal.)

Objectives: To examine the durability of continent cutaneous catheterizable urinary channels (CCCC) in children and assess whether channel complications continue to arise with extended follow-up. Previous studies demonstrated that complications of CCCC cluster in the early years following surgery.Methods: The database of a tertiary center was queried for patients≤21 years who underwent CCCC. Patients with <6 years of follow-up were excluded. Patients were invited for follow-up to assess continence. Clinic visits and hospital admissions were reviewed for channel complications requiring reoperation. Complications were analyzed against patient and channel characteristics and time since initial surgery.Results: Between 1993 and 2012, a total of 120 patients underwent CCCC at a median age of 6.8(0.4-21) years and a median follow-up of 11.4(6.6-27) years. CCCC were created using the appendix, Monti channels and tapered ileal segments in 74(61.7%), 33(27.5%) and 13(10.8%), respectively. Continence relied on the extra-mural serous lined principle in 85.8% and the stoma was anastomosed to the umbilicus in 90%. Dryness with catheterization intervals of 3 hours or longer was eventually achieved in 90.8% with similar rates among different channel types (P=.149). 26(21.7%) required 42 interventions to treat channel complications with 32.5% occurring >5 years following initial surgery irrespective of the channel type (P=.978). On multivariate analysis, ileal channels had 3.372 higher odds of needing reoperation compared to appendicovesicostomy (95%CI=1.240-9.166; P = .037).Conclusion: A high reoperation rate is anticipated throughout the lifetime of CCCC. Appendicovesicostomy has a low complication risk relative to ileal channels. [ABSTRACT FROM AUTHOR]

Introduction: This study aimed to investigate the ultrasonographic features of paediatric acute appendicitis and incorporate them into a scoring algorithm that will quantify the risk of complications and the strength of recommendation for surgical intervention.Methods: 179 patients with suspected appendicitis who had undergone ultrasonographic examination were included in this study. Based on their medical evaluation and post-surgical histopathological results, patients were categorised into confirmed appendicitis (n = 101) and non-appendicitis (n = 78) groups.Results: In the appendicitis group, the appendix was visualised in 66 (65.3%) patients. In cases where the appendix was not visualised, we looked out for secondary inflammatory signs, which were present in 32 (31.7%) patients. Using stepwise logistic regression, Blumberg's sign, free fluid or collection, hyperaemia, non-compressible appendix and an appendix diameter > 7 mm were found to be significant predictive factors for appendicitis. A new scoring system called POPs was developed, combining inflammatory predictors and ultrasonography findings, with an area under the receiver operating characteristic curve of 0.958 (95% confidence interval 0.929-0.986).Conclusion: The newly developed POPs-based diagnosis scheme proved a promising alternative to existing scoring systems such as the Alvarado score. Although further calibration would be beneficial, the proposed scoring scheme is simple and easy to understand, memorise and apply in the emergency room. [ABSTRACT FROM AUTHOR]

Objective: Chronic appendicitis (CA) is a diagnosis characterized by long-standing right lower quadrant pain. We analyzed clinical, morphological, and immunohistochemical studies of the appendix to confirm the adequacy of surgery for CA in children with chronic right lower quadrant pain. Patients and Methods: We carried out comparative studies of clinical presentations and results of morphological and immunohistochemical studies of remote appendicitis in 55 children with chronic recurrent lower quadrant pain (CRLQP). Results: Morphological and immunohistochemical studies revealed three types of changes in the appendix. Type 1 (n = 21)-chronic inflammation. Inflammatory leukocyte infiltration was localized within the mucous membrane of the appendix. An immunohistochemical study revealed a significant (P < .01) increase in the expression of CD106 (vascular cell adhesion molecule 1) and in the number of matrix metalloproteinase 9 (MMP-9) positive cells. Type 2 (n = 20)-lymphoid hyperplasia. Morphological changes were characterized by lymphoid infiltration of the mucosa and submucosa of the appendix. Immunological changes were characterized by an increase (P < .01) in the expression and number of MMP-9, expression of CD106 positive cells, an increase in the expression of collagen IIIα in combination with a decrease in the expression and number of positive vascular endothelial growth factor (VEGF) and vasoactive intestinal peptide cells. Type 3 (n = 12)-catarrhal inflammation. Morphological changes were characterized by impaired blood circulation only in the mucous membrane, without destructive or inflammatory changes. Immunological changes were characterized by an increase (P < .01) in the expression and number of VEGF-positive cells, which may indicate a response to local hypoxia of the appendix and explain neovascularization in a chronic condition. The abdominal syndrome after appendectomy was noted to disappear in 89% of patients. The established changes in remote appendicitis, other than acute inflammation, make it possible to consider reasonable appendectomy a way of treating CRLQP in children. Conclusions: We have identified immunohistochemical and morphological changes pointing to autoimmune and vascular mechanisms of appendix damage in children with CRLQP. Laparoscopic appendectomy helps to eliminate abdominal pain in most CA patients. [ABSTRACT FROM AUTHOR]

Background: Considered vestigial from the classic point of view, the vermiform appendix has long been the subject of intensive studies. The recent understanding of appendix function in the context of unique architecture and bacterial complexity and density allows considering it as a safehouse for intestinal biodiversity. Methods: This review analyzes and assesses the current state of scientific knowledge regarding the role of the vermiform appendix in normal gut microbiota maintenance as a crucial factor of host homeostasis. It also highlights the difference in microbial composition between the large bowel and the appendix, as well as the association between the surgical excision, appendectomy, and dysbiosis-induced diseases. In addition, the review discusses the results of epidemiologic studies on appendectomy as a risk factor for the initiation of gastrointestinal carcinogenesis. It also highlights the association between appendectomy and a series of chronic inflammatory and neurologic disorders, including inflammatory bowel disease. [ABSTRACT FROM AUTHOR]

Objective: To evaluate rates of postoperative infection in patients with acute purulent appendicitis or gangrenous perforated appendicitis after laparoscopic appendectomy (LA). Methods: In this retrospective cohort study the medical records of patients who had undergone LA for acute appendicitis at Yijishan Hospital of Wannan Medical College between January 2015 and December 2019 were reviewed. The patients were divided into 2 groups based on the sequential order in which peritoneal irrigation, suction, and extraction of appendix had been performed. In Group 1 peritoneal irrigation and suction had been performed before extraction of the appendix, and in Group 2 they had been performed after extraction of the appendix. Demographic details, surgery duration, time to first flatus, length of hospital stay, total hospitalization expenses, and postoperative complications were analyzed. Results: The final study sample included 571 patients, 116 (20.3%) in Group 1 and 455 (79.7%) in Group 2. There were no significant differences in demographic characteristics, preoperative white blood cell counts, surgery durations, lengths of hospital stay, or total hospitalization expenses between the 2 groups (P > .05). Time to first flatus was significantly shorter in Group 1 (2.1 ± 0.5 days) than in Group 2 (2.3 ± 0.6) (P = .016), and the incidence of surgical wound infection was lower in Group 1 (6.9%) than in Group 2 (14.1%) (P = .038). There were no significant differences in the rates of intra-abdominal abscess, small bowel obstruction, or readmission within 30 days between the 2 groups (P > .05). Conclusion: Patients with acute purulent appendicitis or gangrenous perforated appendicitis are at high risk of surgical wound infection. Peritoneal irrigation and suction before appendix extraction may reduce the incidence of postoperative wound infection. [ABSTRACT FROM AUTHOR]

Appendicitis is the most common cause of sudden-onset abdominal pain requiring surgery. Culture-independent techniques have revealed that the complex intestinal bacterial ecology is associated with various diseases. To evaluate differences in patient characteristics and gut microbiota distribution in patients with appendicitis, we enrolled 12 patients who underwent appendectomy for appendicitis (appendicitis group) and 13 patients who underwent ileocecal resection or right hemicolectomy for colon cancer (control group). Microbiota were analyzed using next-generation sequencing of surgical specimens from appendix swab samples collected postoperatively. Overall differences in the structure of the gut microbiota were evaluated using the α- and β-diversity indices, which were calculated using the weighted or unweighted UniFrac distance. Changes in the gut microbial distribution were taxonomically evaluated at the phylum and genus levels. The α-diversity of observed species was significantly different between patients with and without inflammation of the appendix. The appendiceal microbiome of patients with appendicitis exhibited the highest unweighted UniFrac distances. There were no significant differences at the phylum level. Ruminococcus (p=0.02) and f_erysipelotrichaceae_g_clostridium (p=0.005) were increased in the control group compared with the appendicitis group. This pilot study provides the first report of the correlation of the gut microbiota with the pathogenesis of appendicitis evaluated using mucus-origin sampling. [ABSTRACT FROM AUTHOR]

Introduction: The safety and efficacy of colonic band ligation and auto-amputation (1) as adjunct to endoscopic mucosal resection of large laterally spreading tumors and (2) for polyps not amenable to routine polypectomy due to polyp burden or difficult location remain unknown. Methods: An institutional review board–approved retrospective single-institution study was undertaken of patients undergoing colonic band ligation and auto-amputation from 2014 to date. Patients with indications of 'endoscopic mucosal resection for laterally spreading tumors' and 'polyp not amenable to snare polypectomy' were included in the study. Data were collected on patient demographics, colonoscopy details (laterally spreading tumors/polyp characteristics, therapies applied, complications), pathology results, and follow-up (polyp eradication based on endoscopic appearance and biopsy results). Results: Patients undergoing endoscopic mucosal resection for laterally spreading tumors : Thirty-two patients (31 males, aged 68 ± 9.17 years) underwent endoscopic mucosal resection-band ligation and auto-amputation of 34 laterally spreading tumors (40 ± 10.9 mm). A median of 2 ± 1.09 bands were placed. Follow-up colonoscopy and biopsy results confirmed complete eradication in 21 laterally spreading tumors (70%). Nine (30%) laterally spreading tumors required additional endoscopic therapy to achieve complete eradication. Four (13%) patients underwent surgery for cancer, and two of them had resection specimens negative for cancer or residual adenoma. One patient suffered post-polypectomy syndrome. Patients undergoing band ligation and auto-amputation for polyps not amenable to snare polypectomy : Seven patients underwent band ligation and auto-amputation due to serrated polyposis syndrome (one patient) and innumerable polyps, or polyps in difficult locations (extension into diverticula: two patients; terminal ileum: two patients; appendiceal orifice: one patient; anal canal: one patient). The patient with serrated polyposis syndrome achieved dramatic decrease in polyp burden, but not eradication. Follow-up in five of the six remaining patients documented polyp eradication. The patient with serrated polyposis syndrome suffered from rectal pain and tenesmus following placement of 18 bands. Conclusions: Band ligation and auto-amputation in the colon may be a safe and effective adjunct to current endoscopic mucosal resection and polypectomy methods and warrants further study. Plain Language Summary: Colonoscopy with rubber band placement to aid in complete removal of large polyps and polyps in technically challenging locations Colonoscopy is a commonly performed procedure for the early detection of colon and rectal cancer, and prevention through polyp removal.During colonoscopy, sometimes situations are encountered making polyp removal difficult. These can include the presence of larger polyps or the location of a polyp in an area that makes removal technically challenging or high risk.A particularly challenging situation arises when after extensive effort there is still polyp tissue remaining that cannot be removed using routine techniques. We are interested in exploring a technique which involves the placement of a rubber band after sucking a small area of the colon lining into a cap loaded onto the tip of the colonoscope. With time the rubber band strangulates the tissue and falls off along with captured tissue and passes out of the colon naturally.To assess the effectives of this technique we studied patients that have undergone this procedure at our GI unit. We identified 32 patients with 34 large polyps between 4cm to 6cm that we placed rubber bands on polyp tissue after we were unable to completely remove the polyp. On their follow up colonoscopy, complete polyp removal was successful in 21 polyps. We were also able to achieve complete polyp removal in 9 of the remaining large polyps after additional treatment. Four patients underwent surgery because cancer was found in analysis of polyp tissue.In 5 of 6 patients with polyps in difficult locations (e.g. partly within the lumen of the appendix), placement of a rubber band led to complete removal of polyp tissue.Two patients in our study population had mild adverse events that were managed with simple measures.We believe our results show promise for our described technique and this technique should be tested in larger studies. [ABSTRACT FROM AUTHOR]

Acute appendicitis is a common surgical emergency. It is commonly caused by obstruction of the appendiceal lumen due to fecaliths, tumors, or lymphoid hyperplasia. For over a century, appendectomy has been the primary treatment for acute appendicitis. Abraham Groves performed the first open appendectomy in 1883. In 1983, Kurt Semm completed the first laparoscopic appendectomy, heralding a new era in appendectomy. However, appendectomy is associated with certain complications and a rate of negative appendectomies. Studies have suggested controversy over the impact of appendectomy on the development of inflammatory bowel disease and Parkinson's disease, but an increasing number of studies indicate a possible positive correlation between appendectomy and colorectal cancer, gallstones, and cardiovascular disease. With the recognition that the appendix is not a vestigial organ and the advancement of endoscopic te-chnology, Liu proposed the endoscopic retrograde appendicitis therapy. It is an effective minimally invasive alternative for treating uncomplicated acute appendicitis. Our team has developed an appendoscope with a disposable digital imaging system operated through the biopsy channel of a colonoscope and successfully applied it in the treatment of appendicitis. This article provides an overview of the progress in endoscopic treatment for acute appendicitis and offers a new perspective on the future direction of appendiceal disease treatment., Competing Interests: Conflict-of-interest statement: The authors declare that they have no competing interests., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)

Background and Aims: An appendectomy for appendiceal inflammation has been suggested to ameliorate the clinical course of patients with ulcerative colitis [UC]. In contrast, for Crohn's disease [CD] an inverse association has been suggested with a higher incidence of CD and worse prognosis after appendectomy. The aim of this study was to analyse the clinical relevance of an inflamed appendix in CD patients undergoing ileocaecal resection [ICR]., Methods: All consecutive patients undergoing primary ICR between 2007 and 2018 were considered for inclusion. Microscopic data of available appendiceal resection specimens [n = 99] were revised by a dedicated inflammatory bowel disease [IBD] pathologist and scored as inflamed or not inflamed. Eighteen patients had a previous appendectomy. Pathological findings were correlated with disease characteristics and recurrence rates [clinical, endoscopic, and intervention-related]., Results: In total 117 patients were included, 77 [65.8%] females, with a median age of 30 years (interquartile range [IQR] 24-43), and a median follow up of 102 months [IQR 76-114]. Of patients without previous appendectomy [n = 99], 39% had an inflamed appendix. No significant differences in disease characteristics [eg, disease location, behaviour, time to surgery] or prognosis could be demonstrated between the two groups. In contrast, previous appendectomy [n = 18] was associated with penetrating disease and numerically shorter disease duration at the time of resection. Furthermore, a trend was seen towards a stronger association with postoperative recurrence., Conclusion: The current study could not confirm a different prognosis for CD patients with and without an inflamed appendix. In contrast, in patients with a previous appendectomy, a trend was seen towards increased postoperative recurrence, which might be related to the higher incidence of penetrating disease., (© The Author(s) 2023. Published by Oxford University Press on behalf of European Crohn’s and Colitis Organisation.)

Introduction: Continent catheterizable channels (CCC) provide an alternative route to the bladder in both pediatric and adult patients. This study compared very long-term complications and revision-free survival of three different CCC techniques: appendicovesicostomy (AVS), ileum (Monti), and tubularized bladder flap (TBF)., Materials and Methods: A retrospective cohort study was performed. Data from adult patients with CCC under surveillance at our academic tertiary referral urological center in 2020 and 2021 were collected. Both patients who acquired the CCC as a child and as an adult were included. The primary outcome was revision-free survival of the three CCC types. The secondary outcome was the prevalence of complications requiring surgical revision. Revisions were categorized as major (open subfascial or complete revisions) and minor (open suprafascial or endoscopic)., Results: We included 173 CCCs (AVS 90, Monti 51, TBF 32). Median follow-up was 12.4 years (4.8-18). Mean revision-free survival was 162 ± 13 months, with no significant difference between the three types. Ninety-two individual CCCs (53%) required surgical revision and a total of 157 surgical revisions were performed. Seventy CCCs (40%) required major surgical revision: AVS (27/90%-30%), Monti (31/51%-61%), TBF (12/32%-38%)., Conclusion: Complications of CCCs are common; in this study with very long-term follow-up, more than half of CCCs required surgical revision. Revisions were more common in Monti channels compared with AVS and TBF. The mean revision-free survival of >13 years illustrates the sustained long-term durability of CCCs which is important in the lifelong urological care of this population with high life expectancy., (© 2023 The Authors. Neurourology and Urodynamics published by Wiley Periodicals LLC.)

Background: Appendicitis seems to be a disease of infectious origin, but the detailed pathogenesis is unknown. We aimed to investigate the microbiome of the appendix lumen in patients with and without appendicitis, including a comparison of the subgroups of complicated versus uncomplicated appendicitis., Methods: This prospective observational cohort study included adult patients undergoing laparoscopic appendectomy for suspected appendicitis. According to histopathologic findings, the investigated groups consisted of patients with and without appendicitis, including subgroups of complicated versus uncomplicated appendicitis based on the surgical report. A swab of the appendix lumen was analyzed for genetic material from bacteria with shotgun metagenomics, and outcomes included analyses of microbiome diversity and differential abundance of bacteria., Results: A total of 53 swabs from patients with suspected appendicitis were analyzed: 42 with appendicitis (16 complicated) and 11 without appendicitis. When comparing patients with and without appendicitis, they were equally rich in bacteria (alpha diversity), but the microbiome composition was dissimilar between these groups (beta diversity) (P < .01). No consistent bacterial species were detected in all patients with appendicitis, but a least 3 genera (Blautia, Faecalibacterium, and Fusicatenibacter) and 2 species, Blautia faecis and Blautia wexlerae, were more abundant in patients without appendicitis. For the subgroups complicated versus uncomplicated appendicitis, both measures for microbiome diversity were similar., Conclusion: The appendix microbiome composition of genetic material from bacteria in adult patients with and without appendicitis differed, but the microbiome was similar for patients with complicated versus uncomplicated appendicitis. Trial registration NCT03349814., (Copyright © 2024 Elsevier Inc. All rights reserved.)

A 78-year-old male on warfarin for deep venous thrombosis is referred to us for resection of a sessile polyp in the cecum. A high-definition Fujifilm BL-7000 processor, virtual chromoendoscopy, and EC-760ZP-V/L magnifying endoscope were used. Diathermy source, ERBE VIO 3. Auto cut mode, Effect 5, 80 watts, and Soft coagulation mode, Effect 5, 60 watts. Underwater polypectomy ensued with resection in two fragments. The resection bed was invaginated into the appendiceal orifice, hence no other measures were considered to prevent delayed bleeding. No complications were reported. The histopathological study found a tubulovillous adenoma with lesion-free borders.