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Minimally invasive surgery (MIS) is a widespread approach in general surgery. Computer guiding software, such as the augmented reality (AR), the virtual reality (VR) and mixed reality (MR), has been proposed to help surgeons during MIS. This study aims to report these technologies' current knowledge and diffusion during surgical training in Italy. A web-based survey was developed under the aegis of the Italian Society of Endoscopic Surgery (SICE). Two hundred and seventeen medical doctors' answers were analyzed. Participants were surgeons (138, 63.6%) and residents in surgery (79, 36.4%). The mean knowledge of the role of the VR, AR and MR in surgery was 4.9 ± 2.4 (range 1-10). Most of the participants (122, 56.2%) did not have experience with any proposed technologies. However, although the lack of experience in this field, the answers about the functioning of the technologies were correct in most cases. Most of the participants answered that VR, AR and MR should be used more frequently for the teaching and training and during the clinical activity (170, 80.3%) and that such technologies would make a significant contribution, especially in training (183, 84.3%) and didactic (156, 71.9%). Finally, the main limitations to the diffusion of these technologies were the insufficient knowledge (182, 83.9%) and costs (175, 80.6%). Based on the present study, in Italy, the knowledge and dissemination of these technologies are still limited. Further studies are required to establish the usefulness of AR, VR and MR in surgical training.

The present study aims to evaluate how the measures to contain the SARS-CoV-2 spreading affected the surgical site infections (SSIs) rate in patients who underwent nondeferrable breast cancer surgery (BCS).This study is a retrospective analysis of prospectively collected data from a consecutive series of patients underwent nondeferrable BCS in a regional Italian Covid-free hub during two different period: March to April 2020 (pandemic cohort [PC]) and March till April 2019 (control cohort [CC]). SSIs were defined according to the criteria established by the Center for disease control and prevention (CDC) and additional treatment, serous discharge, erythema, purulent exudate, separation of deep tissues, isolation of bacteria, and stay (ASEPSIS) scoring systems.One hundred ninety-nine patients were included in the present study: 100 and 99 patients who underwent nondeferrable BCS from March to April 2020 (PC) and from March to April 2019 (CC), respectively. The overall SSIs rate in this series was 9.1% according to CDC criteria and 6.5% according to ASEPSIS criteria. The SSIs incidence decreased during the pandemic period. Moreover, the SSIs rate according to ASEPSIS criteria was statistically lower in the PC than in the CC. We observed significant evidence of higher SSIs, both in terms of CDC and ASEPSIS score, in patients having undergone breast reconstruction compared with patients not undergoing immediate reconstruction.The restrictive measures issued during the lockdown period seemed to lower the SSIs rates in patients undergoing nondeferrable BCS.

Background: Over the Covid-19 pandemic, the compelling need of containing the virus spread while providing diseased people with adequate assistance has inevitably reflected on treatment priorities, which have been sometimes radically revised according to the intrinsic nature of the institution considered and its role and action within the pandemic context. We report on the experience matured at the Regina Elena National Cancer Institute concerning the effects of the restriction measures adopted during the pandemic on the outcomes of surgical site infections (SSIs) in breast cancer patients (BC-pts) undergoing non-deferrable breast cancer surgery. Methods: Within the frame of an observational study, we compared evidence from two cohorts, namely, the lockdown cohort (LDC) and non-lockdown cohort (NLDC). Patients from the LDC underwent breast cancer surgery between the 15th March 2020 and the 4th May 2020. Breast surgery was performed by the same team and postsurgical controls were performed regularly for a minimum of 12-months. SSIs were defined according to the criteria established by the Center for Disease Control and Prevention. Results: The LDC originally included 79 breast cancer patients, of whom 62 provided data to the final analysis. In the LDC, initially 64 breast cancer patients, only 52 were finally considered. No relevant differences emerged between LDC and NLDC by general characteristics. We observed significant evidence of lower SSIs in the subgroups of patients having undergone skin reducing mastectomy compared with the remaining subgroups (p=0.003). The overall number of surgical site infections was 10 (8.7%), and the median time to their occurrence17.1 days (7- 42). In the NLDC, 7 (13.5) SSIs were identified, with a median time to occurrence of 18.2 days (7-42). In the LDC, 3 (4.8%) SSIs occurred, with a median time to occurrence of 14.3 days (7 to 21). None of these patients was in need of re-hospitalization and there were no delays in adjuvant treatment starting. Conclusions: The restrictive measures issued during the lockdown period seemed to lower the SSI rates in breast cancer patients undergoing non-deferrable breast surgery, although, caution is needed due to the limited sample size.

This paper reports on a project for a senior citizens’ residence in the vicinity of Trento, Italy. The project constitutes the major part of a Master’s thesis in Architectural Engineering, developed at the University of Trento in Italy and at TU Vienna in Austria. The work entails a full account of environmental impacts during the life cycle of the building through LCA (Life Cycle Assessment). Furthermore, as buildings' end of life scenarios are insufficiently considered in most conventional LCA studies, the present contribution attempts to pursue a “cradle to cradle” approach (exploring a closed-loop flow of materials, energy, and resources) and to emphasize that the consequences of the choices made at the early stage of the design phase are critical for the subsequent stages of construction, use, maintenance, and end of life.The work consists of two parts. The first part relating to the architectural project involves careful consideration of the local characteristics of the site according to bioclimatic studies. In the second part, a comparative LCA study of different timber constructions and energy system options is presented, followed by a global LCA of the project. This aims at the estimation of the impacts of construction and end of life. Thereby, different possibilities are explored for reusing and recycling materials, such that disposal and incineration could be reduced as much as possible. Thus, the relative significance of different stages of the building construction, operation, and decommissioning can be explored.In conclusion, the paper offers a number of theoretical reflections on uncertainty analysis in LCA, addressing input assumptions (availability and quality of data) as well those regarding normalization and weighting factors. Thereby, the aim is to contribute to efforts toward a more pervasive application of the LCA methodology in the building design and delivery process.

Background and objectives Signet ring cells (SRC) are widely acknowledged as a prognostically unfavorable histotype amongst poorly cohesive gastric cancer. In this study we evaluated the impact of SRC percentage on the clinical, pathological and prognostic features of these tumors according to the classification by the European Chapter of the IGCA. Methods We retrospectively reviewed records of patients with poorly cohesive gastric cancer that underwent surgery between 1995 and 2016, whose tissue specimens were available in a biological bank. All slides were put under revision, patients were reclassified into three groups according to the proportion of signet ring cells: “pure” SRC (containing ≥90% of SRCs), Poorly Cohesive-Not Otherwise Specified (PC–NOS) (containing ≤10% of SRCs), and PC-NOS/SRC (containing 10% of SRCs). The clinicopathological factors between different types were analyzed and prognostic differences were compared. Results Among 143 enrolled patients, 51% were male and 49% were female. The mean (±SD) age at diagnosis was 61 ± 13.9 years. Eighty-seven patients (60.8%) were reclassified as PC-NOS, 56 (39.2%) as PC-NOS/SRC and none as “pure” SRC. Five-years overall survival was significantly higher in PC-NOS/SRC group (63.3%) compared with PC-NOS group (12.7%). The increase in mortality risk was more than four-fold in patients with PC-NOS pattern compared to those with PC-NOS/SRC (HR 4.32 [95% CI 2.5–7.4]. After adjustment for potential confounding factors, SRC pattern was still an independent predictor of survival. Conclusions The percentage of SRCs is inversely related to tumor aggressiveness, confirming the role of SRC pattern as an independent predictor of survival.

Hypertrophic pyloric stenosis (HPS) is the most important cause of non-bilious vomiting during infancy and it is usually idiopathic. It is very rare in older children and adolescents, in which gastric outlet obstruction (GOO) is more typically secondary to other conditions. Gastrointestinal malformation are frequently associated with Down syndrome and some of them (especially duodenal abnormalities) can be detected quite late. In infants the standard treatment of HPS is represented by a Ramstedt pyloromyotomy, while in adults a distal gastric resection is more indicated and it is usually associated to a Billroth I or II reconstruction. Case report We present an unusual case of a 12-year-old girl with Down syndrome, diagnosed with late-onset HPS. She came to our attention with periodic non-bilious vomiting and growth delay. She underwent multiple imaging examinations, which highlighted the presence of an HPS. Based on patient's age and the thickness of the pyloric muscle, we decided to perform a partial gastrectomy with a Roux-en-y reconstruction. Patient was discharged on the X day. She is now on follow up, gains weight and presents good conditions. Discussion HPS is rare but possible during childhood and adolescence. Diagnosis is usually performed through ultrasounds (US) and upper gastrointestinal radiological series (UGI), but sometimes further examinations are required (abdominal MRI, esophagogastroduodenoscopy). In older children since less invasive techniques are not effective, we have to consider partial gastrectomy. Based on our experience, Roux-en-y reconstruction is a valid option, associated with poor complication and good quality of life.

The Covid-19 pandemic has challenged hard the national health systems worldwide. According to the national policy issued in March 2020 in response to the evolving Covid-19 pandemic, several hospitals were re-configured as Covid-19 centers and elective surgery procedures were rescheduled according to the most recent recommendations. In addition, Covid-19 protected cancer hubs were established, including the Regina Elena National Cancer Institute of Rome, Central Italy. At our Institute, the Breast Surgery Department continued working under the sign of a multidisciplinary approach. The number of professional figures involved in case evaluation was reduced to a minimum and interactions took place in the full respect of the required safety measures. Treatments for benign disease, pure prophylactic surgery and elective reconstructive procedures were all postponed and priority was assigned to the histologically-proven malignant breast tumors and highly suspicious lesions. From March 15th though April 30th 2020, we treated a total of 79 patients. This number is fully consistent with the average quantitative standards reached by our Department under ordinary circumstances. Patients were mostly discharged the day after surgery and none was readmitted due to surgery-related late complications. More generally, post-operative complications rates were unexpectedly low, particularly in light of the relatively high number of reconstructive procedures performed in this emergency situation. A strict follow up was performed based on the close contact with the surgical staff by telephone, messaging apps and telemedicine.Patients ascertainment for their Covid-19 status prior to hospital admission and hospital discharge allowed to maintain the “no-Covid-19” status at our Institution. In addition, during the aforementioned time window, none of the care providers developed SARS-CoV-2 infection or disease, as shown by the results of anti-SARS-CoV-2 immunoglobulin M and G profiling. In conclusions, elective breast cancer surgery procedures were successfully performed in a lockdown situation due to a novel viral pandemic. The well-coordinated regional and hospital efforts in terms of medical resource re-allocation and definition of clinical priorities allowed to maintain high quality standards of breast cancer care while ensuring safety to the cancer patients and care providers involved.

Objective Schwannomas of the sciatic nerve, which is the largest nerve of the human body, are very rare accounting for ≤ 1% of all schwannomas. They often may raise confusion with other more common causes of sciatica, such as lumbar degenerative and inflammatory diseases or spinal tumors, which may often lead to a late correct diagnosis. Patients and methods We present two cases of sciatic nerve schwannomas that were recently treated at our Institution, and we review the pertinent English literature on this topic over the last 15 years, yielding twenty three cases to analyze. Results Even if sciatic nerve schwannomas are a rare occurrence, a thorough clinical and radiological evaluation of the sciatic nerve should be considered whenever a sciatic pain is not otherwise explained. A positive Tinel sign and a palpable mass along the course of the sciatic nerve may be strong clues to achieve the diagnosis. Combined morphological and advanced functional MRI imaging may help to differentiate benign from malignant peripheral nerve sheath tumors, avoiding unnecessary preoperative biopsy. Conclusions A standard microsurgical technique guided by ultrasound and neurophysiologic monitoring, allows in most of the cases a safe removal of the tumor and very satisfactory post-operative results for the patients.

Background Although quadrantectomy and lumpectomy help diminish the psychological and physical devastation inflicted, mastectomy is still elected in 20 to 30 percent of breast cancers. Although initially inciting controversy over heightened risk of local recurrences, recent studies maintain that nipple-sparing mastectomy can be used in any patient qualifying for total mastectomy and also improves aesthetic and psychologic outcomes. The manner in which mastectomy influences reconstructive implant outcomes has been documented by several groups. This report details the authors' experience performing nipple-sparing mastectomy with immediate implant-based breast reconstruction, focusing attention on patient characteristics and aspects of surgical mastectomy that influence reconstruction outcomes. The aim of the study was to examine various issues, such as surgical access, mode of tissue dissection, and flap thickness, clearly linked to development of complications and poor results. Methods A retrospective study was conducted, analyzing patients with breast cancer. An external three-surgeon panel served to generate average scores for predefined parameters. Based on total scores, outcomes were designated excellent, good, moderate, or poor. Results The authors' cohort included 1647 patients. Overall, 2023 nipple-sparing mastectomies were performed, including bilateral procedures in 376 patients. After a minimum follow-up period of 12 months, the authors' cohort was stratified by scored outcomes. Significant impact of body mass index, skin incision, flap thickness, and grade of ptosis has been demonstrated. Conclusions The authors' data suggest that proper patient selection and well-executed operations are mandatory to limit complications. They also indicate that aesthetic outcome is clearly dependent on surgical proficiency and some patient characteristics. Clinical question/level of evidence Therapeutic, III.

We present a very rare case of gastric duplication treated with complete excision with two surgical procedures. We decided to report our case to share our experience that confirm the difficult of preoperative/intraoperative diagnosis of gastric duplication in a pediatric patient. Finally we reviewed the literature to date.

BACKGROUND Musculoskeletal sarcomas comprise 1% of all malignancies in adults. Unfortunately, sometimes they are addressed in non-appropriate way requiring a more invasive procedure to achieve radical surgery at a later date. Due to incomplete predictability of their extension, scheduled reconstruction cannot be performed at times, forcing plans to change or clogging up immediate reconstruction. In this paper, the authors provide an insight in the treatment of musculoskeletal sarcomas, particularly focusing on the preoperative planning of reconstructive strategies, which is crucial in order to prevent unpleasant surprises during reconstruction. METHODS Fifty-six consecutive patients requiring reconstructive procedures following the extirpation of tumors were recruited. All data collected during the diagnostic phase were analyzed collectively during a multi-disciplinary meeting where the surgical procedure was planned. A score system was created and results were then classified into "excellent", "good", "sufficient" and "poor". RESULTS After a minimum follow up of 12 months, we recorded the following results: excellent in 10 patients (17.9%), good in 28 patients (50%), sufficient in 12 cases (21.4%) and poor in 6 cases (10.7%). CONCLUSIONS The improvement of treatment and the long-lasting survival in musculoskeletal sarcoma have shifted the goal of therapeutic protocol to obtaining radical tumor removal and maximum functional restoration. When facing unpredictable extension of the resections, reconstruction may be a challenging or even impossible task to fulfil. Only meticulous preoperative planning can prevent surgeons from falling into all sorts of surgical traps following wide resections.

Despite the wide availability of literature on keloids, their onset is not completely understood. Several protocols have been described to treat keloids, but none are considered to be a gold standard. In this paper, we will report our experience treating recurrent keloids with surgical excision, followed by immediate postoperative radiotherapy, focusing on the irradiation protocol, to better define the treatment schedule, dose, and results.From September 2009 to July 2012, 10 patients were referred to our department because of unresponsive keloids. All patients underwent 6-MeV electron beam radiotherapy, up to a total dose of 20 Gy, 24-48 hours after radical surgical keloid excision.Three patients had excellent results, while 5 patients had good results and 2 had moderate results; none of the cases had poor results. No major adverse events were observed. Small keloids can be treated with non-surgical therapy or radical excision, although followed by an adjuvant therapy. Radiotherapy seems to be a better adjuvant approach. The mechanism for the radiotherapeutic prevention of keloids is still poorly understood. It may act by controlling collagen synthesis through the elimination of abnormally-activated fibroblasts.From our results, postoperative electron radiotherapy is an effective and well-tolerated treatment to prevent keloid recurrence, especially in patients with bulky keloids or recurrent disease.

Hepatocellular carcinoma (HCC) is the most common type of liver cancer and is still one of the most fatal cancers. Hence, it needs to identify always new putative markers to improve its diagnosis and prognosis. The selenium is an essential trace mineral implicated as a key factor in the early stage of cancer and exerts its biological function through the selenoproteins. In the last years our group has been studying the involvement of some selenoproteins in HCC. However, no many data are reported in literature about the correlation between HCC and the glutathione peroxidases (GPXs), both selenium and non selenium-containing GPXs. In this paper we have evaluated the GPX4 and GPX7 expression in some paraffin-embedded tissues from liver biopsy of patients with hepatitis C virus (HCV)-related cirrhosis and HCC by immunohistochemistry and RT-qPCR analysis. Our results evidenced that i) GPX4 and GPX7 had a statistically significant over-expression in HCC tissues compared to cirrhotic counterparts used as non tumor tissues, and ii) their expression was higher in grade III HCC tissues with respect to grade I-II samples. Therefore, we propose to use GPX4 and GPX7 as possible markers for improving HCC diagnosis/prognosis.

Background: Intestinal stenosis of Garré, first described in 1892, is a rare condition as a consequence of a complicated strangulated hernia. Preoperative diagnosis is challenging because of unspecific symptoms. Proper anamnesis, especially in terms of clinical and surgical history, as well as careful examination of both inguinal spaces is essential. Case Report: We herein present a case of intestinal stenosis of Garré in a 70-year-old female. Conclusion: Intestinal stenosis of Garré should be considered in cases of occlusive symptoms occurring after a non-operative or surgical reduction of a strangulated hernia. A correct diagnosis and an adequate surgical treatment are necessary to solve this rare complication favorably.

Nerve growth factor (NGF) is a neurotrophin that is expressed during muscle development and is also capable of favoring muscle regeneration in experimental studies. The presence of NGF in muscular dystrophies, such as Duchenne and Becker muscular dystrophies, has never been fully explored. By means of immunohistochemistry, we show that regenerating muscle fibers from such patients consistently express NGF, as do myofibroblasts and mast cells. By contrast, rest fibers from dystrophic patients, as well as muscle fibers from healthy, control patients and even regenerative muscle fibers in polymyositis do not show NGF immunoreactivity. The paracrine effect of NGF on muscle regeneration, as well as its chemoattractant capacities for mast cells, may contribute to explaining why regenerating fibers most frequently occur in clusters and why mast cells are more numerous in dystrophic muscles. Moreover, being a mediator of wound healing and tissue fibrosis, NGF may contribute to long-term muscle regeneration impairment by tissue fibrosis in the muscular dystrophies.

Introduction In women with macromastia, a type IV skin sparing mastectomy is often required to achieve an aesthetically pleasing reconstruction. The introduction of “skin-reducing mastectomy”, which inserts a permanent prosthetic device into a large pouch made by the pectoralis major muscle and an inferior pedicle dermal flap, allows the surgeon to achieve a safe oncologic result plus a cosmetically satisfying reconstruction. Objective We report here our experience with the skin-reducing mastectomy with the aim of emphasizing the problems associated with the technique. Materials and method A study was conduced from April 2009 to November 2012, 74 patients with breast cancer were selected then received a skin-reducing mastectomy. The enrolled women satisfied the criteria of Nava. Statistical analysis was conduced to estimate the significance of the outcome results and complication rate. Result A total of 88 SRMs were performed and the outcomes were as follows: excellent in 34 patients, good in 21, and poor in 8. We recorded 25 % of adverse events and statistic helped us to identify patient related factors whose can increase the complications onset. Conclusion Skin-reducing mastectomy is an indispensable procedure to treat cancer in large and pendulous breasts. The correct patient selection is mandatory to reduce the not negligible complication risk. Skin reducing mastectomy when is well conduced allow to obtain good results with patient satisfaction but, like other breast-conserving surgeries, in some case is not the ultimate solution, because it may require some revisions to maintain the optimum results. To day it be consider relatively safe in selected patient and the gold standard in macormastia immediate reconstruction.