Search

Abstract Introduction Mastering paediatric laparoscopic surgery competency (PLSC) is technically challenging. The present study aimed to determine whether the inter-academic PLSC degree (IAD_PLSC) practical training program enables trainees to improve their skills. Methods This retrospective study included trainees enrolled in the IAD_PLSC program in 2021 and 2022 which included two separate 12 h-sessions. Trainees practiced to perform intracorporeal laparoscopic knots (ILK) using 5- and 3-mm instruments on a pelvi-trainer simulator; Peg Transfer (PT) was used as a dexterity test; final marks added the adapted Objective Structured Assessment of Technical Skills (OSATS) score (out of 40) and time to complete ILK. ILK was considered a success in case the OSATS score > 27/40. Results A total of 43 trainees completed the IAD_PLSC program. N = 37 (86.0%) mastered the ILK (OSATS score > 27/40) using 5-mm instruments at the end of session 1 and N = 33 (76.7%) at the end of session 2 (p = 0.41). There was no significant improvement in the median [interquartile range, IQR] OSATS score (32 [30–36] vs. 32 [28–34], p = 0.19), but the median [IQR] knot completion time improved significantly (184 s [161–268] vs. 166 s [128–218], p = 0.002). There was a significant correlation between the knot completion time and PT time at the end of session 1 (ρ = 0.58, 95% confidence interval, CI [0.31;0.76], p

Abstract Patient reported outcomes measures (PROMS) are important endpoints to measure patient health status in the perioperative setting. However, there are no good tools to measure PROMS in the pediatric surgical population. Patients 7 to 17 years old undergoing surgery were included and followed up for 1 day after surgery (POD1). At POD1 the patients were asked to rate their overall postoperative recovery using a 100-mm visual analog scale (VAS). The primary outcome was the pediatric QoR-15 score on postoperative day 1 (POD1). 150 patients completed the study. The mean (SD) pediatric QoR-15F scores were 132.1 (14.1) and 111.0 (27.0), preoperatively and on POD1, respectively. Convergent validity confirmed with Pearson (r) correlation between the postoperative pediatric QoR-15F and the patient-rated global recovery assessment was 0.72 (95% confidence interval [0.63–0.79]; p

Introduction: Congenital pouch colon (CPC) is a rare intestinal anomaly usually associated with an anorectal malformation (ARM). Because of its low incidence, there are no guidelines on the correct treatment. We report the step-by-step management and challenging surgery of a newborn with CPC and cloaca to ensure the patient's best quality of life possible. Case presentation: We describe a case of type II CPC associated with a complex cloaca with a retro-vesical didelphus uterus in a 1530g preterm syndromic female. A preoperative cystoscopy identified a urogenital sinus with an anterior bladder and a posterior vagina. The abdominal exploration done on day 1 showed a dilated CPC with the cecum ending in a large structure extending toward the bladder, and a proximal diverting ileostomy was created. Eight months later, the CPC was mobilized, and the common wall of the bladder and the pouch colon was excised. The 8-cm colonic pouch was tabularized by a triangle resection resulting in a colonic tube used to create a colostomy. Because of the syndromic nature of the patient, the consensus has been not to proceed with the urogenital reconstruction and the ileo-anal pull-through. Conclusion: CPC malformations should be suspected in the case of a single perineal orifice. There is no consensus about the best surgical approach to CPC. The operative reconstruction must be tailored to each patient in order to ensure the best possible quality of life.

Introduction: Congenital volvulus without a prenatal diagnosis of malrotation is an extremely rare cause of acute intestinal obstruction in the foetal and neonatal period with a high morbidity and mortality. The aim of this report is to describe prenatal imaging, pregnancy characteristics and clinical outcomes to identify a gold standard management approach for neonates affected by congenital volvulus through our experience with this case as well as a review of the literature. Case presentation: We describe an intrauterine case of volvulus without malrotation suspected by prenatal ultrasound at 28 weeks' gestation, with enlarged hyperechogenic loops without peristalsis in a 715g preterm boy born at 29 weeks' gestation. The discrepancy between the minimal clinical manifestations and the severity of intestinal pathology is highlighted. At explorative laparotomy following delivery, a congenital mesenteric defect was identified through which small bowel had herniated and volvulised, causing prenatal bowel dilatation and necrosis. The necrotic bowel was resected, and both an ileostomy and jejunostomy were created within 30 hours of birth. However, severe post-operative complications were encountered, which ultimately led to the newborn's death. Conclusion: Foetal volvulus is a rare condition with high rates of preterm birth and perinatal mortality. A high index of suspicion is required in cases of bowel dilatation, intestinal duplication or malrotation. Strict foetal follow up with serial ultrasound assessment and planned cesarean delivery are recommended. Multidisciplinary care is essential. Time of delivery and surgical intervention should be standardised to reduce the risk of neonatal mortality.

Bioinspired adhesives have been increasingly developed, especially towards a biomedical application. Therefore, in this study, dopamine (DA) was oxidized into polydopamine (PDA) in a gelatin mixture via titration with NaIO4 as a strong oxidant to easily obtain an adhesive antioxidant and self-healing PDA–gelatin hydrogel. Rheology experiments show a stiffness in the order of kPa and a thermal resistance above 50 °C, much above the gel–sol transition temperature of pristine gelatin. After heating at 55 °C, the gel is self-healing. In addition, just after formulation, it shows strong peeling-rate-dependent adhesion to steel with a tensile work per unit area (W) of up to 100 ± 39 J/m2, which is 2.5 times higher than that of the same gel without PDA at a peeling rate of 1000 µm/s. The increase in W between peeling rates of 10 and 1000 µm/s was studied and interpreted in terms of the gels’ viscoelasticity. Moreover, this hydrogel offers significant antioxidant activity (measured by DPPH scavenging) that lasts with storage for at least over 15 days, this being then prolonged for 2 additional days, which seems particularly relevant considering the importance of reactive oxygen species (ROS) in wound healing. To summarize, PDA–gelatin gel is a promising strong and antioxidant adhesive.

ObjectiveDespite recent progress in caring for patients born with esophageal atresia (EA), undernutrition and stunting remain common. Our study objective was to assess nutritional status in the first year after birth with EA and to identify factors associated with growth failure.Study designWe conducted a population-based study of all infants born in France with EA between 2010 and 2016. Through the national EA register, we collected prenatal to 1 year follow-up data. We used body mass index and length-for-age ratio Z scores to define patients who were undernourished and stunted, respectively. Factors with P < 0.20 in univariate analyses were retained in a logistic regression model.ResultsAmong 1,154 patients born with EA, body mass index and length-for-age ratio Z scores at 1 year were available for about 61%. Among these, 15.2% were undernourished and 19% were stunted at the age of 1 year. There was no significant catch-up between ages 6 months and 1 year. Patients born preterm (41%), small for gestational age (17%), or with associated abnormalities (55%) were at higher risk of undernutrition and stunting at age 1 year (P < 0.05). Neither EA type nor surgical treatment was associated with growth failure.ConclusionUndernutrition and stunting are common during the first year after birth in patients born with EA. These outcomes are significantly influenced by early factors, regardless of EA type or surgical management. Identifying high-risk patient groups with EA (i.e., those born preterm, small for gestational age, and/or with associated abnormalities) may guide early nutritional support strategies.

Background: Over the past decade, laparoscopic hernia repair was the most performed operation in our department. Equally, it compromises 15% of all pediatric operations performed. We aim, in this study, to review all the cases performed and extrapolate important information like reoccurrences, the incidence of metachronous inguinal hernia, complications amongst other information. Material and Methods: All patients under the age of 18 whom underwent elective laparoscopic hernia repair between 03/01/2007 till the 18/05/2016 were included in our study. We recorded important clinical features and studied their post-operative follow up. Equally reoccurrences, the incidence of metachronous inguinal hernia, complications and other parameters were recorded and studied. Results: A total of 916 patients were operated on during the defined study period. There was a 0.17% reoccurrence rate and a 0.46% incidence of metachronous inguinal hernia. Equally a contralateral patent processus vaginalis was diagnosed and closed in 17.10%. There were no postoperative complications and we had a 0% postoperative hydrocele rate. Conclusion: Laparoscopic hernia repair is safe and carries all the benefits of minimally invasive surgery. We recommend that it is offered to patients and would like to refute previously claimed reports that it carries a higher reoccurrence rate or takes a long time to perform. Our reoccurrence rate of 0.17% is actually lower than many published reoccurrence rates after open repair.

Among the different materials used as protheses for the treatment of Congenital Diaphragmatic Hernia, expanded polytetrafluoroethylene (e-PTFE) plays a leading role owing to its mechanical properties as explained in the first part of this review. However, this material is poorly cell adhesive, which is expected for its contact on the abdominal face, but should display specific tissue adhesion on its thoracic exposed faced. A side specific functionalization method is hence required. The deposition of a nanosized polydopamine film on PTFE is known to be possible but immersion of the e-PTFE membrane in an aerated dopamine solution leads to a functionalization not only on both faces of the membrane but also in its porous volume. The fact that polydopamine also forms at the water/air interface has allowed to transfer a polydopamine film on only one face of the e-PTFE membrane. The deposition method and applications of such Janus like membranes are reviewed in the second part of the review.

Functional inactivation of the von Hippel-Lindau (VHL) tumor suppressor gene occurs in 40–80% of human conventional renal cell carcinomas (RCCs). We showed recently that VHL-deficient RCCs expressed large amounts of parathyroid hormone-related protein (PTHrP), and that PTHrP, acting through the PTH1 receptor (PTH1R), plays an essential role in tumor growth. We also showed that PTHrP expression is negatively regulated by the VHL gene products (pVHL). Our goal was to determine whether blocking the PTHrP/PTH1R system might be of therapeutic value against RCC, independent of VHL status and PTHrP expression levels. The antitumor activity of PTHrP neutralizing antibody and of PTH1R antagonist were evaluated in vitro and in vivo in a panel of human RCC lines expressing or not pVHL. PTHrP is upregulated compared with normal tubular cells. In vitro, tumor cell growth and viability was decreased by up to 80% by the antibody in all cell lines. These effects resulted from apoptosis. Exogenously added PTHrP had no effect on cell growth and viability, but reversed the inhibitory effects of the antibody. The growth inhibition was reproduced by a specific PTH1R antagonist in all cell lines. In vivo, the treatment of nude mice bearing the Caki-1 RCC tumor with the PTHrP antibody inhibited tumor growth by 80%, by inducing apoptosis. Proliferation and neovascularization were not affected by the antiserum. Anti-PTHrP treatment induced no side effects as assessed by animal weight and blood chemistries. Current therapeutic strategies are only marginally effective against metastatic RCC, and adverse effects are common. This study provides a rationale for evaluating the blockade of PTHrP signaling as therapy for human RCC in a clinical setting. [ABSTRACT FROM AUTHOR]