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BackgroundInternational guidelines on the prevention and treatment of parastomal hernias are lacking. The European Hernia Society therefore implemented a Clinical Practice Guideline development project.MethodsThe guidelines development group consisted of general, hernia and colorectal surgeons, a biostatistician and a biologist, from 14 European countries. These guidelines conformed to the AGREE II standards and the GRADE methodology. The databases of MEDLINE, CINAHL, CENTRAL and the gray literature through OpenGrey were searched. Quality assessment was performed using Scottish Intercollegiate Guidelines Network checklists. The guidelines were presented at the 38th European Hernia Society Congress and each key question was evaluated in a consensus voting of congress participants.ResultsEnd colostomy is associated with a higher incidence of parastomal hernia, compared to other types of stomas. Clinical examination is necessary for the diagnosis of parastomal hernia, whereas computed tomography scan or ultrasonography may be performed in cases of diagnostic uncertainty. Currently available classifications are not validated; however, we suggest the use of the European Hernia Society classification for uniform research reporting. There is insufficient evidence on the policy of watchful waiting, the route and location of stoma construction, and the size of the aperture. The use of a prophylactic synthetic non-absorbable mesh upon construction of an end colostomy is strongly recommended. No such recommendation can be made for other types of stomas at present. It is strongly recommended to avoid performing a suture repair for elective parastomal hernia. So far, there is no sufficient comparative evidence on specific techniques, open or laparoscopic surgery and specific mesh types. However, a mesh without a hole is suggested in preference to a keyhole mesh when laparoscopic repair is performed.ConclusionAn evidence-based approach to the diagnosis and management of parastomal hernias reveals the lack of evidence on several topics, which need to be addressed by multicenter trials. Parastomal hernia prevention using a prophylactic mesh for end colostomies reduces parastomal herniation. Clinical outcomes should be audited and adverse events must be reported.

PurposeTo compare early postoperative outcomes after transversus abdominis release (TAR) for ventral hernia repair with open (oTAR) and robotic (rTAR) approach.MethodsA systematic search of PubMed/MEDLINE, EMBASE, SCOPUS and Web of Science databases was conducted to identify comparative studies until October 2020. A meta-analysis of postoperative short-term outcomes was performed including complications rate, operative time, length of stay, surgical site infection (SSI), surgical site occurrence (SSO), SSO requiring intervention (SSOPI), systemic complications, readmission, and reoperation rates as measure outcomes.ResultsSix retrospective studies were included in the analysis with a total of 831 patients who underwent rTAR (n = 237) and oTAR (n = 594). Robotic TAR was associated with lower risk of complications rate (9.3 vs 20.7%, OR 0.358, 95% CI 0.218–0.589, p < 0.001), lower risk of developing SSO (5.3 vs 11.5%, OR 0.669, 95% CI 0.307–1.458, p = 0.02), lower risk of developing systemic complications (6.3 vs 26.5%, OR 0.208, 95% CI 0.100–0.433, p < 0.001), shorter hospital stay (SMD − 4.409, 95% CI − 6.000 to − 2.818, p < 0.001) but longer operative time (SMD 53.115, 95% CI 30.236–75.993, p < 0.01) compared with oTAR. There was no statistically significant difference in terms of SSI, SSOPI, readmission, and reoperation rates.ConclusionRobotic TAR improves recovery by adding the benefits of minimally invasive procedures when compared to open surgery. Although postoperative complications appear to decrease with a robotic approach, further studies are needed to support the real long-term and cost-effective advantages.

Introduction Robotic surgery for ventral hernia repair (VHR) is gaining attention for its potential advantages over laparoscopic and open techniques. This approach combines the advantages of minimally invasive surgery with the ability to perform technically challenging procedures, often required in open surgery but difficult with conventional laparoscopy. We aim to evaluate the efficacy and safety of robotic VHR compared to other surgical approaches, focusing on postoperative complications, operative time, and costs. Material and methods A systematic review with meta-analysis were conducted, including 67 studies from January 2010 to May 2023 on Robotic VHR compared with other techniques. Primary outcome was 30-days postoperative complications; SSI, SSO, seroma, mortality, recurrence, length of hospital stay, operative time and costs were analysed as secondary outcomes. Results Robotic surgery was associated with longer operative times compared to both laparoscopic (MD 64.67 min; p  < 0.001) and open repairs (MD 69.69 min; p  < 0.001). However, it resulted, compared to open surgery, in fewer SSIs (OR 0.62; p 0.05), mortality (OR 0.44; p 0.04) and shorter hospital stay (MD -3.77 days; p  < 0.001). No differences were found in overall complications or length of stay between robotic and laparoscopic approaches but higher costs and longer operative times were reported in robotic VHR. Conclusions Based on the currently available low-quality evidence, robotic VHR appears to offer limited advantages compared to laparoscopic techniques. However, when compared to open approaches, robotic VHR may demonstrate reduced postoperative complications and shorter hospital stays even if an higher rate of seroma formation was retrieved probably related to technical details. Nevertheless, longer operative times and higher costs remain significant limitations. Further high-quality comparative studies are warranted to assess long-term outcomes and cost-effectiveness.

BackgroundVentral hernia repair is one of the most commonly performed surgical procedures worldwide. To reduce the risk of complications, patient prehabilitation has received increasing focus in recent years. To assess prehabilitation measures, this European Hernia Society endorsed project was launched. The aim of this systematic review was to evaluate the current literature on patient prehabilitation prior to ventral hernia repair.MethodsThe strategies examined were optimization of renal disease, obesity, nutrition, physical exercise, COPD, diabetes and smoking cessation. For each topic, a separate literature search was conducted, allowing for seven different sub-reviews.ResultsA limited amount of well-conducted research studies evaluating prehabilitation prior to ventral hernia surgery was found. The primary findings showed that smoking cessation and weight loss for obese patients led to reduced risks of complications after abdominal wall reconstruction.ConclusionPrehabilitation prior to ventral hernia repair may be widely used; however, the literature supporting its use is limited. Future studies evaluating the impact of prehabilitation before ventral hernia surgery are warranted.

PurposePrimary (PVHs) and incisional (IHs) ventral hernias represent a common indication for surgery. Nevertheless, most of the papers presented in literature analyze both types of defect together, thus potentially introducing a bias in the results of interpretation. The purpose of this systematic review and meta-analysis is to highlight the differences between these two entities.MethodsMethods MEDLINE, Scopus, and Web of Science databases were reviewed to identify studies evaluating the outcomes of both open and laparoscopic repair with mesh of PVHs vs IHs. Search was restricted to English language literature. Risk of bias was assessed with MINORS score. Primary outcome was recurrence, and secondary outcomes were baseline characteristics and intraoperative and postoperative data. Fixed effects model was used unless significant heterogeneity, assessed with the Higgins I square (I2), was encountered.ResultsThe search resulted in 783 hits, after screening; 11 retrospective trials were selected including 38,727 patients. Mean MINORS of included trials was 15.2 (range 5–21). The estimated pooled proportion difference for recurrence was − 0.09 (− 0.11; − 0.07) between the two groups in favor of the PVH group. On metanalysis, PVHs were smaller in area and diameters, affected younger and less comorbid patients, and were more frequently singular; the operative time and length of stay was quicker. Other complications did not differ significantly.ConclusionOur paper supports the hypothesis that PVH and IH are different conditions with the latter being more challenging to treat. Accordingly, EHS classifications should be adopted systematically as well as pooling data analysis should be no longer performed in clinical trials.

PurposeTo assess the incidence of incisional hernia (IH) across various type of incisions in colorectal surgery (CS) creating a map of evidence to define research trends, gaps and areas of future interest.MethodsSystematic review of PubMed and Scopus from 2010 onwards. Studies included both open (OS) and laparoscopic (LS). The primary outcome was incidence of IH 12 months after index procedure, secondary outcomes were the study features and their influence on reported proportion of IH. Random effects models were used to calculate pooled proportions. Meta-regression models were performed to explore heterogeneity.ResultsNinetyone studies were included reporting 6473 IH. The pooled proportions of IH for OS were 0.35 (95% CI 0.27–0.44) I2 0% in midline laparotomies and 0.02 (95% CI 0.00–0.07), I2 52% for off-midline. In case of LS the pooled proportion of IH for midline extraction sites were 0.10 (95% CI 0.07–0.16), I2 58% and 0.04 (95% CI 0.03–0.06), I2 86% in case of off-midline. In Port-site IH was 0.02 (95% CI 0.01–0.04), I2 82%, and for single incision surgery (SILS) of 0.06—95% CI 0.02–0.15, I2 81%. In case of stoma reversal sites was 0.20 (95% CI 0.16–0.24).ConclusionMidline laparotomies and stoma reversal sites are at high risk for IH and should be considered in research of preventive strategies of closure. After laparoscopic approach IH happens mainly by extraction sites incisions specially midline and also represent an important area of analysis.

Purpose This scoping review aimed to systematically map the existing evidence on the surgical management of complex abdominal wall hernias (CA), focusing on patient-specific factors, hernia characteristics, contamination and operative strategies to their management, in order to identify research gaps and areas for clinical improvement. Methods A comprehensive literature search was conducted in PubMed and Scopus, covering publications from January 2015 to June 2024. A total of 6,445 articles were identified, of which 357 met inclusion criteria (303 primary studies and 54 systematic reviews). Studies were classified into three categories: patient-related factors (P), hernia-specific features (H), and contamination (W). Results Patient-related factors, particularly obesity and associated comorbidities, were consistently related to higher rates of morbidity and hernia recurrence despite prehabilitation and bariatric surgery were evaluated, results were inconclusive. Hernia-specific features, including large defect size and loss of domain, were associated with increased complication rates. Midline restoration and its achievement with component separation or preoperative botulinum toxin injections, were extensively studied, showing potential benefits. In contaminated settings, synthetic meshes outperformed biologic alternatives, demonstrating lower recurrence and morbidity rates in recent trials. Research in biosynthetic mesh is still needed. Conclusion Surgical management of CA remains a highly demanding clinical scenario with significant variability in outcomes influenced by patient factors and hernia characteristics. Techniques such as component separation and the use of synthetic meshes hold promise, but further high-quality, randomized trials are required to establish standardized protocols and optimize clinical outcomes in this challenging patient population.

PurposeInguinal hernia repair is one of the most performed procedure all over the world with more than 20 million procedures performed each year. Due to the lack of data in literature about the learning curve of the Lichtenstein procedure, we decided to reproduce a research on learning curves with the same methodology proposed in our previous study about laparoscopic hernia repair. The aim of this multicentre study was to analyse how many cases are required to achieve the learning curve for a Lichtenstein procedure.MethodsWe performed a retrospective analysis of the first 100 Lichtenstein procedures performed by 4 trainees from three different institutions and compared them with the same number of procedures performed by 3 senior surgeons from the same institutions. The data about the achieving of learning curve were evaluated with CUSUM and KPSS test.ResultsNo differences about biometrical features were found between the seven groups of patients. CUSUM analysis showed that the trainees achieve the learning curve after 37–42 procedures, reaching an operative time similar to that one of the senior surgeons.ConclusionsIn conclusion, we have shown that the number of procedures required to reach the learning curve from the beginning of surgical residency is around 40 hernia repairs. This number, produced in a controlled environment under strict supervision, could be the minimum requirement to start the procedure of accreditation and specialization in hernia surgery and is higher and steeper than previously reported.

Total thyroidectomy (TT) is one of the most common procedures among general and endocrine surgeons worldwide. The conventional approach by neck incision is still the most frequently used, despite the growth of mini-invasive approaches. Controversies exist about the optimal learning curve for resident surgeons approaching this procedure. The aim of this study was to compare TT performed by experienced surgeons and residents in two academic hospitals, to define the correct shape of the specific learning curve. Between January 2016 and December 2018 patients undergoing TT in two academic departments were prospectively enrolled. In each department patients were divided into four groups: a reference group (A), consisting of 50 consecutive patients operated on by a senior surgeon, and three other groups (B, C, D) of 50 patients each where thyroidectomy was carried out by three different general surgery residents in their last 3 years of residency, respectively. Data were analysed by CUSUM and KPSS tests in order to compare operative time (OT) and its stabilisation during the learning curve. Data from CUSUM test reported that residents could perform TT with OT similar to the senior surgeon after approximately 25-30 procedures, while the KPSS test showed that residents became more stable after 30 procedures, with no increase in perioperative complications. This prospective study shows how a specific training in thyroid surgery can be reliable thanks to experienced tutors, and confirmed that the effect of dedicated and programmed training may result in positive outcomes for patients requiring thyroidectomy.