Simulators and training models for diagnostic and therapeutic gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Technical and Technology Review

Gastrointestinal (GI) endoscopy comprises both diagnostic and therapeutic procedures involving the luminal GI tract as well as the biliary tree, liver, and pancreas. GI endoscopy is challenging to learn, requiring both cognitive (nontechnical) and technical skills, and requires extensive practice to attain proficiency. Simulation-based training has been shown to assist trainees and young endoscopists in acquiring new skills and accelerating the learning curve. Moreover, simulation-based training creates an ideal environment for trainees to initially learn and practice skills while making mistakes with no risk to patients.This review, divided in two parts, offers a comprehensive summary of the different classes of simulators available for GI endoscopic training.In Part I, only mechanical simulators are reported and described. In Part II, animal simulators (ex vivo/in vivo) and virtual reality models are detailed, together with prototypes that are currently not commercially available.

Evaluation of the Adjuvant Effect of Dexmedetomidine on Ropivacaine for Transversus Abdominis Plane Block in Inguinal Hernia Repair: A Prospective Double-Blind Randomized Trial

Background and goal of study: The aim of this double-blind randomized study was to investigate the efficacy of dexmedetomidine as an adjuvant to the local anesthetic in transversus abdominis plane (TAP) block for unilateral inguinal hernioplasty. Materials and Methods: Eighty eligible patients were randomly allocated into ultrasound-guided TAP block with either dexmedetomidine 0.5 mcg/kg diluted to a volume of 2 mL and ropivacaine 0.5% 25 mL (DR group) or ropivacaine 0.5% 25 mL and normal saline 2 mL (R group). The primary endpoint of this study was the numeric rating scale (NRS) score during coughing 24 h postoperatively. Secondary parameters were also evaluated. Results: Patients in the RD group demonstrated significantly less pain at rest three, six and 12 h postoperatively as compared to patients in the R group (p = 0.002, 0.032 and 0.049, respectively). Significant differences between the two groups were also demonstrated for NRS scores during coughing at 3, 6 and 12 h postoperatively (p = 0.013, 0.035 and 0.042, respectively). Additionally, the RD group demonstrated lower intraoperative remifentanil consumption (p < 0.001), lower PACU morphine requirement (p = 0.012) and lower overall PCA morphine requirement postoperatively (p < 0.001). Sedation scores, the incidence of hypotension, bradycardia and the occurrence of postoperative nausea and vomiting were no different between the two groups. Finally, the incidence of chronic pain at 6 months was significantly lower in the RD group compared to the R group (5.55% vs. 25%, p = 0.049). Conclusions: Dexmedetomidine as an adjuvant to ropivacaine reduces postoperative pain scores, has opioid-sparing effects and is associated with a favorable effect on chronic pain without side effects in patients subjected to TAP block for inguinal hernia repair.

Transabdominal Preperitoneal Repair Versus Lichtenstein's Open Hernia Repair for Inguinal Hernias: A Retrospective Study of 120 Cases

INTRODUCTION

Inguinal hernia repair is one of India's most common procedures in general surgery. The advent of minimally invasive surgery for this condition has revolutionized its treatment. This study compares the outcomes of transabdominal preperitoneal (TAPP) repair and Lichtenstein's open hernia repair, focusing on specific intraoperative and perioperative outcomes.

MATERIALS AND METHODS

A retrospective analysis was conducted on patients who underwent either TAPP repair or open hernia repair at a single tertiary care center between June 2021 and June 2024. A total of 120 patients were included, with Group A comprising 60 patients who underwent TAPP repair and Group B comprising 60 patients who underwent open hernia repair. In addition to demographic data, parameters such as operative time, length of hospital stay, postoperative pain score using the Visual Analogue Scale (VAS), and incidence of postoperative complications were analyzed. Statistical comparisons were made using chi-square and t-tests, with a significance level set at p < 0.05.

RESULTS

The mean operative time for Group A and Group B was 137.43 ± 24.41 minutes and 108.91 ± 36.73 minutes, respectively, which was statistically significant (p < 0.001). Although individual complications varied, the complications were 11.66% (seven patients) in Group A and 38.33% (23 patients) in Group B. The VAS revealed that the average pain score at 24-48 hours was 4.05 ± 0.80 in Group A and 4.3 ± 0.74 in Group B, indicating a statistically significant lower pain level in Group A (p = 0.03). At the end of one week, the average pain score was significantly lower in Group A (1.18 ± 0.42 vs. 1.55 ± 0.67, p < 0.001). The average duration of hospital stay was 2.3 ± 0.64 days for Group A and 3.01 ± 0.911 days for Group B. An unpaired t-test showed statistically significant differences between the two groups' hospital stay duration and time taken to return to normal work (t = 4.98, p < 0.001 and t = 14.041, p < 0.001, respectively). The average number of days for which analgesics were required was 1.1 in Group A and 1.6 in Group B.

CONCLUSIONS

TAPP repair offers significant advantages in terms of postoperative pain and recovery time compared to traditional open hernia repair. Although TAPP repair requires a longer operative time, its benefits, such as reduced recovery duration and lower postoperative pain, could lead to better patient outcomes and reduced strain on healthcare resources. Both techniques showed comparable complications and hernia recurrence rates, suggesting that TAPP repair is a safe and effective alternative to open hernia repair. Future studies with larger sample sizes and longer follow-up periods are recommended to further assess the long-term efficacy and cost-effectiveness of TAPP repair compared to open hernia repair.

Pfannenstiel Extraction Site Reduces Postoperative Extraction Site Hernias after Robotic Radical Prostatectomy

Introduction and Objectives: Robotic-assisted radical prostatectomy (RARP) is associated with postoperative hernias at the extraction site, in the inguinal region, and at port sites. We explored hernia rates as well as risk factors for extraction site hernias after RARP based on specimen extraction location in this context. Patients and Methods: We queried a prospectively maintained database of all patients undergoing RARP from November 2006 to June 2023. We collected demographic features, oncologic and pathologic data, 30-day postoperative complications, and postoperative hernia incidence. Specimens were extracted via a midline periumbilical or a Pfannenstiel incision at the conclusion of the case per surgeon preference. Clinically relevant hernias were defined as hernias identified by symptoms or exam findings rather than imaging alone. Univariable and multivariable logistic regressions were used to identify risk factors for postoperative extraction site hernias. Results: In total, 1465 patients underwent radical prostatectomy. Around 23.7% had specimen extraction via Pfannenstiel incision, whereas 76.3% were via extended midline periumbilical port. Patients with a Pfannenstiel extraction had a lower extraction site hernia rate (0.6% vs 7.4%) and clinically significant hernia rate (10.1% vs 14.5%, p = 0.04). On multivariable logistic regression, Hispanic race and Pfannenstiel extraction site were associated with significantly reduced odds of clinically relevant extraction site hernias. Conclusions: Use of a separate Pfannenstiel extraction site is associated with reduced risk of postoperative hernias for patients undergoing RARP. Surgeons should consider extracting the prostate via a Pfannenstiel incision during RARP given this potential benefit.

HLA-Region Genetic Association Analysis of Breast Cancer Patients With and Without Persistent Postsurgical Neuropathic Pain

BACKGROUND

Surgical nerve injuries lead to persistent neuropathic pain (NP) in up to 30% of patients. Among many other factors, polymorphisms in the human leukocyte antigen (HLA) genes have been suggested to contribute to the development of neuropathic pain.

METHODS

We performed a genetic association analysis of HLA class I and class II alleles in women who had been operated on for breast cancer. Patients had a surgeon-confirmed perioperative nerve injury and were examined 4-9 years after their surgery. Patients with painful (cases, n = 27) and painless (controls, n = 30) intercostobrachial nerve resection were studied. Cases included patients with definite NP with worst pain intensity in the past week ≥ 4/10 on a numerical rating scale (NRS) and controls had the same nerve injury with no NP or other pains. Whole-genome single nucleotide polymorphism data were produced, and HLA class I (HLA-A, -B, -C) and class II (HLA-DRB1, -DQA1, -DQB1 and -DPB1) alleles were determined by imputation.

RESULTS

HLA-DRB1*03:01, DQA1*05:01 and DQB1*02:01 alleles appeared to be associated with painful nerve injury after breast cancer surgery (nominal p = 0.007 for all, carriership OR = 12.0, 95% CI 1.38-104; FDR corrected p > 0.07). These alleles comprise the DR3-DQ2 haplotype, which is part of the ancestral haplotype AH8.1.

CONCLUSIONS

Our results provide further support for the role of HLA genetic variation in the development of persistent post-surgical neuropathic pain, which indirectly implies a mechanism involving immunological memory in this process.

SIGNIFICANCE STATEMENT

We report a novel association between the HLA-DR3-DQ2 haplotype and the development of persistent neuropathic pain after breast cancer surgery. Our results provide further evidence for the role of HLA polymorphism in persistent neuropathic pain.

Safety of Laparoscopic Hernia Surgery in Patients With Preoperative Antiplatelet Continuation Therapy

Introduction The optimal perioperative antithrombotic management of patients receiving antithrombotic therapy (ATT) remains controversial. In this study, we investigated the safety and feasibility of laparoscopic hernia surgery in patients taking ATT, especially those with a preoperative continuation of single antiplatelet therapy (APT). Methods Three hundred ninety-six (396) patients who underwent laparoscopic hernia surgery between April 2014 and March 2023 in our institution were retrospectively reviewed. The patients were divided into two groups: patients who continued single aspirin monotherapy preoperatively (continued single aspirin therapy (cAPT) group; n = 118) and patients who did not receive APT preoperatively (non-APT group; n = 278). Our perioperative antithrombotic management included preoperative continuation of single aspirin therapy for patients with APT or interruption of oral anticoagulation therapy (ACT), bridging anticoagulation with unfractionated heparin or direct-acting oral anticoagulants (DOAC) replacement for patients with ACT. The primary outcome was postoperative bleeding complications (BC). Results There were four postoperative BCs (Clavien-Dindo classification ≧ Ⅱ) (1.0%) in the whole cohort, one (0.9%) in the cAPT group, and three (1.1%) in the non-APT group, which were not significantly differentiated (p = 0.8330). Multivariable analysis showed heparin or DOAC replacement was an independently and significantly risk factor for postoperative bleeding (p = 0.0029, odds ratio (OR) = 32.6). Continuation of preoperative aspirin was not a risk factor for postoperative BCs. No thromboembolic complications occurred in the whole cohort. Conclusion We can safely and feasibly perform laparoscopic hernia surgery under preoperative antithrombotic management, including the preoperative continuation of single aspirin therapy, without any increase in bleeding events. However, careful consideration is required for the patient who received heparin bridging or DOAC replacement.

Comparative Efficacy of Abdominal Exercises and Abdominal Binding on Diastasis Recti Abdominis Reduction in Postpartum Women: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

BACKGROUND AND PURPOSE

Diastasis Recti Abdominis (DRA) is a separation of the rectus abdominis muscles which often results from pregnancy. This meta-analysis aims to identify the most effective non-surgical treatment to reduce post-partum DRA.

METHODS

A comprehensive search was performed on electronic databases including PubMed, Cochrane, and Embase databases for RCTs involving abdominal or pelvic muscle exercises, and abdominal binding for DRA Reduction. Primary outcomes included inter-recti distance (IRD) Resolution, Oswestry Disability Index (ODI) score, and Pelvic Floor Disability Index (PFDI) score. ROB 2.0 tool was used for the risk of bias assessment of RCTs. Meta-analysis was performed using Review Manager version 5.4. Sensitivity analysis was conducted to determine the influence of studies on the overall results. Meta regression was performed using R version 4.4 to identify the sources of heterogeneity.

RESULTS

Thirteen RCTs were included in the analysis. Abdominal exercise significantly reduced IRD below the umbilicus compared with abdominal binding (Mean difference [MD] = -0.31, 95% CI: -0.53 to -0.10, p = 0.004) but was ineffective for IRD resolution ≥ 2 cm above the umbilicus (MD = 0.22, 95% CI: -1.43 to 1.88, p = 0.79). Compared with no intervention, abdominal exercise significantly reduced IRD below the umbilicus (MD = -0.31, 95% CI: -0.53 to -0.10, p = 0.004) but was ineffective in IRD resolution ≥ 2 cm above the umbilicus (MD = 0.11, 95% CI: -0.38 to 0.59, p = 0.67). No significant reduction was found in the ODI score (MD = -5.57, 95% CI: -19.31 to 8.17, p = 0.43) and PFDI score (MD = -12.99, 95% CI: -43.49 to 17.51, p = 0.04).

DISCUSSION

Abdominal exercises reduce IRD below the umbilicus more effectively than binding and no intervention, but their effectiveness above the umbilicus is unclear. ODI and PFDI showed no significant improvement. Further research with standardized criteria and diverse population is needed to clarify the efficacy of these treatments for diastasis recti.

Recurrence and complications after laparoscopic inguinal hernia repair using a self-adherent mesh: a patient-reported follow-up study

BACKGROUND

Recurrence and postoperative pain are major concerns after laparoscopic surgery for inguinal hernia. Follow-up on all patients is difficult and time consuming for both the hospital and the patient. We conducted a patient-reported follow-up study to estimate the rate of recurrence and postoperative pain in our department.

METHOD

Patients undergoing the TAPP (TransAbdominal PrePeritoneal) procedure with a self-adherent mesh at Copenhagen University Hospital - North Zealand from 2016 to 2019 received an online survey about signs of recurrence, postoperative pain, and complications. Patients reporting signs of recurrence or pain were contacted and invited for a clinical examination if relevant. Forty-five randomly selected patients who did not report any symptoms of recurrence or pain were contacted by phone for validation.

RESULTS

871 patients received a questionnaire, and 546 responded, leaving a response rate of 62.7%. Median follow-up time was 34 months (IQR 23-47). The self-reported recurrence rate was 8.1% (95% CI: 6.0-11.0%). On examination, recurrence was diagnosed in 2.4% (95% CI: 1.4-4.1%) of the patients. When including the patients with self-reported recurrence who did not accept the offer of clinical examination, the recurrence rate was 3.8% (95% CI: 2.5-5.8%). Four patients (0.7%, 95% CI: 0.2-2.0%) underwent herniotomy for recurrence. The rate of chronic postoperative pain impairing daily activity was 0.5%.

CONCLUSION

We found an acceptable low rate of recurrence and postoperative pain compared to other studies. The patient-reported recurrence rate was significantly higher than the clinical recurrence rate after the examination, indicating that patient-reported recurrence seems to overestimate true recurrence after TAPP.

Cholecystectomy for acute cholecystitis during weekend compared with delayed weekday surgery: A nationwide population cohort study

BACKGROUND

The optimal timing of surgery for acute cholecystitis has been a subject of debate, but the predominant view supports early cholecystectomy. This study investigated the safety of early cholecystectomy during weekends compared with delayed surgery until a weekday.

METHODS

This was a population-based cohort study based on data from the Swedish National Register for Gallstone Surgery and Endoscopic Retrograde Cholangiopancreatography (GallRiks). Data from 2006 to 2020 were analyzed, and patients with acute cholecystitis were included. Patients who underwent surgery during weekends were compared with patients in hospital during weekends and underwent surgery on any subsequent weekday. Statistical analyses were conducted using logistic regression analysis.

RESULTS

15,730 patients were included, and complications were registered in 2,246 patients (14.3%). The proportion of complications was equal in both groups (14.0% vs 14.5%, P = .365). The proportion of open surgery was higher in the weekend surgery group (29.1% vs 26.3%), with an odds ratio of 1.32 in multivariate logistic regression analysis (P < .001). Meanwhile, the duration of surgery exceeding 2 hours was less common when surgery was performed on the weekend (32.7% vs 46.8%, P < .001, odds ratio: 0.69).

CONCLUSION

In this study, procedures performed during weekends had outcomes that did not substantially differ from those performed during weekdays. The results of our study support performing early cholecystectomies during the weekend without increasing the patients' risk of complications.

Gender Inequity in Institutional Leadership Roles in US Academic Medical Centers: A Systematic Scoping Review

Importance

Academic medical centers have focused their efforts on promoting gender equity in recent years, but the positive outcomes associated with those efforts remain to be seen in recruiting and retaining diverse institutional leadership.

Objective

To evaluate the current state of gender inequity in institutional leadership roles, such as deans, department chairs, and residency and fellowship program directors, at US academic medical centers.

Evidence Review

A search for articles published from January 1, 2019, to August 5, 2022, on gender inequity in institutional leadership roles at academic medical centers was performed using the PubMed, CINAHL, and ERIC databases. Studies were screened for inclusion by sets of 2 independent reviewers (with disagreements resolved by a third reviewer) and evaluated for risk of bias. The Methodological Expectations of Cochrane Intervention Reviews Standards were followed for conducting the review, and the Preferred Reporting of Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) reporting guideline was followed for reporting results.

Findings

A total of 8120 articles were retrieved, of which 6368 were screened by title and abstract, 6166 were excluded, and 202 underwent full-text review. Ultimately, 94 studies reported on institutional leadership roles, including deans (5 studies [5.3%]), department chairs (39 studies [41.5%]), division chiefs (25 studies [26.6%]), and program directors (67 studies [71.3%]), with some overlap. A total of 678 participants were deans (564 men [80.5%] and 132 women [19.5%]), 8518 were department chairs (7160 men [84.1%] and 1358 women [15.9%]), 3734 division chiefs (2997 men [80.3%] and 737 women [19.7%]), and 9548 program directors (7455 men [78.1%] and 2093 women [21.9%]). Even in specialties with 50% or more female faculty, none had equal representation of women as department chairs and division chiefs. Gender inequities were particularly pronounced in surgical specialties.

Conclusions and Relevance

This systematic scoping review suggests that even though emphasis has been placed on addressing gender inequities in academic medicine, considerable disparities remain at the leadership level. While certain positions and specialties have been observed to have more female leaders, niches of academic medicine almost or completely exclude women from their leadership ranks. Importantly, even female-dominated specialties, such as obstetrics and gynecology, have substantial inequity in leadership roles. It is past time for organizational and systems-level changes to ensure equitable gender representation in academic leadership.

Early versus delayed laparoscopic cholecystectomy for gallbladder perforation

BACKGROUND

Gallbladder perforation occurs in 2% to 11% of patients with acute cholecystitis, with associated mortality estimated to be at 12% to 42%. Because of its low incidence, the data on management remain sparse. There is a lack of evidence to suggest whether early or delayed cholecystectomy is superior in the treatment of perforated cholecystitis. We hypothesize that an early definitive operation is associated with decreased total hospital length of stay (THLOS).

METHODS

Using the National Surgical Quality Improvement Program database from the American College of Surgery, we identified patients who underwent laparoscopic cholecystectomy for gallbladder perforation on an urgent or emergent basis from 2012 to 2021. We divided them into those who underwent early (<2 days from the date of admission to the date of operation) and delayed cholecystectomy (≥2 days from the date of admission to the date of operation). Our primary outcome was the THLOS. We created multivariate regression models to assess for the association of early versus delayed operation and THLOS.

RESULTS

The THLOS was found to be 2.94 days longer in the delayed group compared with the early group (p < 0.05). In those who did not present with sepsis on admission, the THLOS was noted to be 4.71 days longer in the delayed group compared with the early group (p < 0.05). Early versus delayed operation was not associated with a difference in the postoperative length of stay, 30-day postoperative complications, rate of readmission, and reoperation, regardless of preoperative sepsis status.

CONCLUSION

Early laparoscopic cholecystectomy for gallbladder perforation is associated with decreased THLOS, and there were no other differences in outcomes compared with delayed laparoscopic cholecystectomy. Patients with gallbladder perforation would likely benefit from an early operation within 2 days of admission.

LEVEL OF EVIDENCE

Therapeutic/Care management; Level IV.

Early Laparoscopic Cholecystectomy Versus Percutaneous Cholecystostomy Followed by Delayed Laparoscopic Cholecystectomy in Patients with Grade II Acute Cholecystitis According to Tokyo Guidelines TG18

Introduction: In the past, most patients with acute cholecystitis (AC) were treated conservatively. However, strong evidence from various studies has shown that laparoscopic cholecystectomy (LC) is safe and should be the primary treatment for AC. However, this may not be the case for all AC grades. This study aimed to compare two recommended approaches for grade II AC as outlined in the Tokyo guidelines TG18, focusing on early operative outcomes. Methods: We conducted a retrospective review of medical records for all patients diagnosed with grade II AC. The study compared patients who underwent early LC (group A, n = 130) with those who initially received percutaneous cholecystostomy (PC) followed by LC (group B, n = 90). Results: Both groups had similar Tokyo classification parameters. However, there were significant differences in baseline data, operative challenges, and postoperative complications. Cholecystostomy-related complications were observed in seven patients. The conversion rate for was 25% for group A and 5% for group B. The incidence of intraoperative biliary injury was 10% for group A and 2.2% for group B. In group A, 92% of patients with biliary injury and 80% of those who required conversion to open surgery had evidence of localized inflammation around the gallbladder. Conclusion: For selected patients with grade II AC and higher risks, PC placement can be beneficial in preventing life-threatening consequences. The study suggests a 2-month interval between PC and subsequent LC. Overall, performing LC after PC was found to be easier than early LC. Local inflammatory changes, including empyema, were associated with higher complication rates in the early LC group.

Ventral Hernia and Obesity: A Contemporary Surgical Challenge

Ventral hernias are abdominal wall defects classified as primary or incisional. Obesity is a significant risk factor, contributing to wound healing impairment and abdominal wall weakness. We present a 37-year-old female patient with obesity (body mass index (BMI) 48.9) who developed incisional hernia (IH) one year after laparoscopic sleeve gastrectomy. Imaging revealed infraumbilical and paraumbilical IHs, leading to surgical repair with anterior component separation, unilateral transverse muscle release, and retromuscular mesh placement. Abdominoplasty was performed for functional and esthetic improvement. The patient had a favorable postoperative course. Managing IH in obese patients requires a multidisciplinary approach, considering specialized surgical techniques and long-term follow-up to minimize recurrence. This case highlights the interplay between bariatric surgery, hernia development, and the need for tailored preventive and therapeutic strategies.

International Delphi study of clinical and exercise professionals' opinion of physical activity prescreening and contraindications for participating in postpartum physical activity

OBJECTIVE

To establish expert consensus on prescreening and contraindications to moderate-to-vigorous intensity physical activity (MVPA) during the first year postpartum.

METHODS

A Delphi survey of clinical and exercise professionals working with postpartum women and people was conducted until consensus was reached (≥75% agreement). Round I consisted of questions about relative and absolute contraindications to MVPA. Rounds II and III included additional questions based on the thematic coding of open-ended responses from the previous rounds. The results were used to develop a postpartum MVPA preparticipation screening tool.

RESULTS

120 participants completed round I, 105 completed round II and 95 completed round III. Consensus was reached in 46/49 (94%) statements. Twenty-four relative contraindications to MVPA were identified: (loss of consciousness; neurological symptoms; kidney disease; calf pain or swelling suggestive of deep vein thrombosis; severe abdominal pain; vaginal bleeding not associated with menses; postpartum cardiomyopathy; caesarean section with symptoms that worsen with MVPA; unstable hypertension; eating disorder; malnutrition; anaemia; excessive fatigue; fractures or other significant musculoskeletal injuries; haemodynamic instability; breathing difficulties; acute systemic infection accompanied by fever, body aches, or swollen lymph glands; the new onset of chest pain, discomfort, and other angina-like symptoms with exertion; dizziness or lightheadedness during MVPA; new symptoms of heart disease, stroke; and other medical or physical conditions that may affect the ability to be physically active. Key biopsychosocial barriers to MVPA were identified.

CONCLUSION

This Delphi study recommends relative contraindications to MVPA for the first year postpartum that were incorporated into a postpartum MVPA pre-participation screening tool the Get Active Questionnaire for Postpartum.

Parastomal Hernia: direct repair versus relocation: is stoma relocation worth the risk? A comparative meta-analysis and systematic review

Parastomal hernia is a prevalent and challenging complication in patients with stomas, frequently necessitating surgical intervention. The two primary approaches to parastomal hernia repair- direct repair without relocation and stoma relocation- offer distinct benefits and drawbacks. This systematic review and meta-analysis aimed to compare the efficacy and safety of stoma relocation versus direct repair in managing parastomal hernia. Following PRISMA guidelines, we conducted a systematic review and meta-analysis of studies involving adult patients (≥ 18 years) with parastomal hernia who underwent either stoma relocation or direct repair, with a focus on clinically relevant outcomes. A comprehensive search of Web of Science, PubMed, Scopus, and Cochrane Library databases was conducted up to September 2024. Key short-term outcomes (operative time, surgical site infection, urinary tract infection, bowel obstruction, length of hospital stay, and overall complications) and long-term outcomes (re-admission, recurrence, re-operation, and mortality) were extracted. Statistical analysis included risk ratios (RR) for dichotomous outcomes and mean differences (MD) for continuous outcomes. Six studies were included, encompassing both laparoscopic and open-surgical techniques. Direct repair was associated with a significantly shorter operative time (MD: 115 min, 95% CI: 95.71 to 134, P < 0.00001) and a reduced length of hospital stay (MD: 2 days, 95% CI: 0.40 to 3.9, P = 0.02). While reoperation rates were significantly lower in the relocation group (RR: 0.15, 95% CI: 0.03 to 0.62, P = 0.009), other outcomes-including recurrence, re-admission, and overall complication rates-showed comparable results between the two approaches. Notably, there were no significant differences in surgical site infection, urinary tract infection, bowel obstruction, or mortality rates. Direct repair may be advantageous for reducing operative time and hospital stay, whereas stoma relocation appears beneficial in reducing reoperation rates. Future research should focus on developing standardized techniques and incorporating patient-specific factors to inform optimal surgical decision-making in parastomal hernia repair.

Short- and Long-Term Outcomes After Emergency Groin Hernia Surgery: A Nationwide Population-Based Study from the Swedish Hernia Register

Background/Objectives: Emergency groin hernia repairs have consistently presented a higher risk of mortality and morbidity. This study aimed to compare both short- and long-term outcomes associated with emergency groin hernia surgery. Methods: A nationwide, population-based cohort study was conducted using prospective collected data from the Swedish Hernia Register combined with a questionnaire assessing patient-reported chronic pain. All patients who underwent a groin hernia repair between 2012 and 2018 were eligible for inclusion. Primary outcomes included 30-day mortality, chronic pain 1-year post-surgery, 30-day postoperative complication, and bowel resection and reoperation for recurrence for emergency versus elective repairs. Risk factors for these outcomes in emergency repair were investigated. Results: A total of 94,349 repairs were analyzed, with 5401 (5%) emergency repairs. Emergency repairs involved older patients (median age 74 vs. 65), more women (25% vs. 9%), more ASA grade III (38% vs. 12%), more femoral hernias (19% vs. 3%) and smaller defects (24% vs. 17%) compared to elective repairs. Multivariable analysis revealed increased rates and significant risks for 30-day mortality (2.7%, OR 11.61), chronic pain (20.6%, OR 1.30), 30-day postoperative complications (21.9%, OR 2.12) and bowel resection (7.8%, OR 408) compared to elective repairs. No significant difference was observed for reoperation for recurrence. Key risk factors for the outcomes following emergency repairs were higher age, higher ASA grade and femoral hernias. Conclusions: Emergency hernia surgery continues to pose a high risk of mortality and morbidity. Elective repair should be considered in frail patients and those with potential femoral hernias.

Current opinions on the use of prophylactic antibiotics in patients undergoing laparoscopic cholecystectomy

Inappropriate use of antibiotics leads to microbial resistance. Single-dose antibiotic prophylaxis prior to laparoscopic cholecystectomy is well known for reducing the risk of postoperative infection in high-risk patients despite some conflicting aspects. High-risk patients are those who are older than 70 years, have diabetes mellitus, whose operation time exceeded 120 minutes, have acute cholecystitis, experienced iatrogenic intraoperative gallbladder perforation resulting in bile or gallstone spillage, suffered from obstructive jaundice, or were deemed immunocompromised. For gallbladder perforation, one dose of antibiotic prophylaxis is sufficient. Therefore, guidelines are needed and must be strictly followed. Prophylactic treatment is not needed for patients at low risk of developing sepsis following elective laparoscopic cholecystectomy, although the opposite is supported. Similarly, superficial surgical infections are related to low morbidity. Patients without risk factors have a very low risk of infection. Thus, the routine use of antibiotic prophylaxis in elective laparoscopic cholecystectomy is not recommended.

Initial experience with ultrafine choledochoscopy combined with low-dose atropine for the treatment of Oddi intersphincter stones

BACKGROUND

In recent years, the use of ultrafine choledochoscopy has gradually increased in the treatment of cholelithiasis. However, stone incarceration and residual spasm of the sphincter of Oddi may be inevitable when an ultrafine choledochoscope is used alone.

AIM

To investigate the safety and feasibility of ultrafine choledochoscopy combined with low-dose atropine in the treatment of Oddi intersphincter stones.

METHODS

Seventeen patients with Oddi intersphincter stones were retrospectively analyzed. The perioperative clinical data and follow-up information were collected.

RESULTS

Among the 17 patients, 3 were male and 14 were female. The mean age was 40.6 ± 13.9 years, and the mean diameter of the common bile duct was 7.8 ± 1.3 mm. All patients successfully underwent Oddi intersphincter stone removal using a combination of ultrafine choledochoscopy and low-dose atropine. No serious complications, such as postoperative hemorrhage, pancreatitis or bile leakage occurred in the 17 patients. During the one-year follow-up, none of the patients experienced stone recurrence.

CONCLUSION

Ultrafine choledochoscopy combined with low-dose atropine is safe and feasible for the treatment of Oddi intersphincter stones.

Co-occurrence of autoimmune liver disease and gallstones: a clinically overlooked phenomenon

BACKGROUND

Gallstone disease is a relatively common complicating condition in patients with autoimmune liver disease (AILD) in clinical practice, yet this phenomenon has not been reported previously. Thus, we investigated the prevalence and the clinical characteristics of gallstones in patients with AILD.

METHODS

We retrospectively analyzed 560 patients with AILD, comprising 207 with primary biliary cholangitis (PBC), 289 with autoimmune hepatitis (AIH), and 64 with PBC-AIH overlap syndrome (PBC-AIH), who attended the General Hospital of Tianjin Medical University from November 2012 to October 2022. In addition, 937 control (CTRL) individuals matched for age and sex were included.

RESULTS

The proportion of patients with AILD, PBC, AIH, and PBC-AIH complicated by gallstones was 32.5, 35.7, 28.4, and 40.6%, significantly higher than in the CTRL (14.3%). Types of gallstones are predominantly multiple stones (43.4%), followed by single stones (32.4%) and sludge stones (6%). Patients with AILD with gallstones exhibited significantly higher age at the first visit (P = 0.007) and serum biochemical markers associated with bile duct injury, such as gamma-glutamyl transpeptidase (P = 0.003) and alkaline phosphatase (P = 0.001). Patients with AILD aged 61.5 and older were significantly more prone to gallstones (P = 0.003).

CONCLUSION

Gallstones are a common comorbidity in patients with AILD, predominantly multiple stones. Patients with gallstones should be aware of the early diagnosis of AILD to prevent delayed treatment. Older patients with AILD should be alerted and prevented from developing stones. Our findings provide new ideas for clinical diagnosis and etiologic investigation.

Adhesions After Laparoscopic IPOM-How Serious Is the Problem?

Although laparoscopic IPOM is still the gold standard in ventral hernia repair, it is subject of a slow but constant decline, while new minimally invasive techniques are increasingly used, as well as open retromuscular repairs. One of the reasons are the intraperitoneal mesh position and its suspected higher risk for creating intraabdominal adhesions, compared to extraperitoneal mesh positions. In potential subsequent operations (e.g., in recurrent ventral hernia repair) adhesions usually must be taken down, which is a known risk factor for complications such as inadvertent enterotomies, surgical site infections and prolonged hospital stay. In this review we evaluate the incidence of intraabdominal adhesions after ventral hernia repair and their potential impact on surgical outcome in subsequent operations. Special attention is paid to the impact of mesh position in developing adhesions.

Temporal Patterns and Treatment Associations in Complications Following Hip Arthroplasty

Background and Objectives: Hip arthroplasty is commonly performed to enhance mobility and quality of life in patients with severe joint degeneration. However, post-surgery complications such as infections, dislocations, and mechanical failures remain prevalent and vary over time. This study examines the relationship between time intervals post-surgery and the occurrence of complications and explores the associations between specific treatment modalities and complications. It also investigates temporal patterns of infectious and mechanical complications to inform more effective post-surgery care. Materials and Methods: A retrospective cohort study was conducted on hip arthroplasty patients to analyze the occurrence and distribution of complications across medium-term (1-5 years) and long-term (≥6 years) intervals. Treatment modalities, including joint debridement, lavage, antibiotics, and mechanical interventions, were analyzed for their association with complications. Chi-Square tests were used, with significance set at p < 0.05. Results: A significant association was found between time intervals and complications (χ2 = 58.149, df = 19, p < 0.001). Infections were more prevalent in the medium-term, while mechanical complications such as dislocation, implant loosening, and periprosthetic fractures were more common in the long-term. Antibiotics were strongly linked to infectious complications (χ2 = 279.000, p < 0.001), and mechanical treatments were associated with fractures and dislocations. Conclusions: The study confirms that the timing of complications post-surgery plays a critical role in their occurrence. Specific complications become more prevalent at different intervals, emphasizing the need for tailored treatment strategies. Antibiotics for infections and mechanical interventions for fractures and dislocations should be adjusted based on timing. These findings highlight the importance of time-specific post-surgery care and suggest areas for further research on long-term strategies and risk factors.

The Role of Perirenal Adipose Tissue in Carcinogenesis-From Molecular Mechanism to Therapeutic Perspectives

Perirenal adipose tissue (PRAT) exhibits particular morphological features, with its activity being mainly related to thermogenesis. However, an expanded PRAT area seems to play a significant role in cardiovascular diseases, diabetes mellitus, and chronic kidney disease pathogenesis. Numerous studies have demonstrated that PRAT may support cancer progression and invasion, mainly in obese patients. The mechanism underlying these processes is of dysregulation of PRAT's secretion of adipokines and pro-inflammatory cytokines, such as leptin, adiponectin, chemerin, apelin, omentin-1, vistatin, nesfatin-1, and other pro-inflammatory cytokines, modulated by tumor cells. Cancer cells may also induce a metabolic reprogramming of perirenal adipocytes, leading to increased lipids and lactate transfer to the tumor microenvironment, contributing to cancer growth in a hypoxic milieu. In addition, the PRAT browning process has been specifically detected in renal cell carcinoma (RCC), being characterized by upregulated expression of brown/beige adipocytes markers (UCP1, PPAR-ɣ, c/EBPα, and PGC1α) and downregulated white fat cells markers, such as LEPTIN, SHOX2, HOXC8, and HOXC9. Considering its multifaceted role in cancer, modulation of PRAT's role in tumor progression may open new directions for oncologic therapy improvement. Considering the increasing evidence of the relationship between PRAT and tumor cells, our review aims to provide a comprehensive analysis of the perirenal adipocytes' impact on tumor progression and metastasis.

Phospholipase D2: A biomarker for stratifying disease severity in acute pancreatitis?

In this editorial, we critically evaluate the recent article by Niu et al, which explores the potential of phospholipase D2 (PLD2) as a biomarker for stratifying disease severity in acute pancreatitis (AP). AP is a clinically heterogeneous inflammatory condition that requires reliable biomarkers for early and accurate classification of disease severity. PLD2, an essential regulator of neutrophil migration and inflammatory responses, has emerged as a promising candidate. Although current biomarkers such as C-reactive protein and procalcitonin provide general indications of inflammation, they lack specificity regarding the molecular mechanisms underlying AP progression. Recent studies, including the research conducted by Niu et al, suggest an inverse correlation between PLD2 expression and AP severity, offering both diagnostic insights and mechanistic understanding. This editorial critically evaluates the role of PLD2 as a biomarker in the broader context of AP research. Evidence indicates that decreased levels of PLD2 are associated with increased neutrophil chemotaxis and cytokine release, contributing to pancreatic and systemic inflammation. However, several challenges remain, including the need for large-scale validation and functional studies to establish causation, and standardization of measurement protocols. Additionally, further investigation into the temporal dynamics of PLD2 expression and its variability across diverse populations is warranted. Looking ahead, PLD2 holds the potential to revolutionize AP management by integrating molecular diagnostics with precision medicine. The utilization of large-scale multi-omics approaches and advancements in diagnostic platforms could position PLD2 as a fundamental biomarker for early diagnosis, prognosis, and potentially therapeutic targeting. While promising, it is crucial to conduct critical evaluations and rigorous validations of PLD2's role to ensure its efficacy in improving patient outcomes.

[Active surveillance of prostate cancer]

The aim of active surveillance (AS) is to avoid overtreatment of clinically insignificant prostate cancer (PCa). It is now strongly recommended for patients diagnosed with localized low-risk PCa. Additionally, it can be considered for selected patients with localized PCa in the International Society of Urological Pathology (ISUP) group 2, provided patients have a favorable risk profile. This profile is histopathologically characterized by the presence of a low percentage of Gleason pattern 4 and the absence of cribriform or intraductal components. The role of magnetic resonance imaging (MRI), including the Prostate Cancer Radiological Estimation of Change in Sequential Evaluation (PRECISE) recommendations on monitoring is increasing. It is crucial to adhere to defined intervals for prostate-specific antigen (PSA) level checks, repeat biopsies, MRI and further targeted and systematic biopsies under AS. The MRI of the prostate (according to the current recommendations as multiparametric MRI, mpMRI), as a noninvasive diagnostic tool, has the potential to be used as a decision aid for determining the need for repeated biopsies during AS. As the trigger for deciding for an active treatment PSA progression alone is not sufficient but there must be a biopsy-confirmed tumor progression with an upgrading. This continuing medical education (CME) article summarizes the current indications, procedures and discontinuation criteria for AS based on the latest evidence and an adaptation to international guidelines.

Relapse in gallstone disease after non-operative management of acute cholecystitis: a population-based study

OBJECTIVE

Non-operative management (NOM) of acute cholecystitis (ACC) may be preferable in patients with advanced inflammation, long duration of symptoms or severe comorbidities. This study aims to investigate time to recurrence and patient factors predicting relapse in gallstone complications after NOM.

METHODS

Records of 1634 patients treated for ACC at three Swedish centres between 2017 and 2020 were analysed, with 909 managed non-operatively. Data were linked to the National Gallstone Surgery registry for those who later underwent surgery. The time to relapse of gallstone complications was calculated and Cox proportional hazards regression was used to analyse new gallstone complications and adjust for multiple variables.

RESULTS

Of the 909 non-operatively managed patients, 348 patients suffered a new gallstone complication. The median time to recurrence was 82 days. Of those who recurred, 27% did so within 30 days, 17% between 31 and 60 days, 27% between 61 days and 6 months, 16% between 6 months and 1 year and 13% later than 1 year. Younger patients with their first gallstone complication had a lower risk of new complications compared with those with previous gallstone complications. In older individuals, there was no difference in the risk of relapse regardless of previous gallstone complications, but they were more likely to be readmitted than younger patients.

CONCLUSION

Delayed cholecystectomy should be prioritised for younger patients with a history of gallstone disease if early cholecystectomy is not feasible. Delayed cholecystectomy should be scheduled without a prior outpatient clinic visit to minimise delays.

Exploring the Immunological Role of the Microbial Composition of the Appendix and the Associated Risks of Appendectomies

The appendix, an integral part of the large intestine, may serve two purposes. First of all, it is a concentration of lymphoid tissue that resembles Peyer's patches. It is also the main location in the body for the creation of immunoglobulin A (IgA), which is essential for controlling intestinal flora's density and quality. Second, the appendix constitutes a special place for commensal bacteria in the body because of its location and form. Inflammation of the appendix, brought on by a variety of infectious agents, including bacteria, viruses, or parasites, is known as appendicitis. According to a number of studies, the consequences of appendectomies may be more subtle, and may relate to the emergence of heart disease, inflammatory bowel disease (IBD), and Parkinson's disease (PD), among other unexpected illnesses. A poorer prognosis for recurrent Clostridium difficile infection is also predicted by the absence of an appendix. Appendectomies result in gut dysbiosis, which consequently causes different disease outcomes. In this review, we compared the compositional differences between the appendix and gut microbiome, the immunological role of appendix and appendix microbiome (AM), and discussed how appendectomy is linked to different disease consequences.

Two indirect sacs and one canal of Nuck in female inguinal hernia: a case report

BACKGROUND

Female inguinal hernias are rare to see. All inguinal hernias in females occur as indirect hernias. A single hernia sac is usually seen, but the occurrence of more than one sac in female indirect inguinal hernias is extremely rare.

CASE PRESENTATION

A 64-year-old female of Kashmiri ethnicity who had multiple comorbidities reported with right groin swelling. She had a diagnosis of a right indirect inguinal hernia. Intraoperatively, one canal of Nuck and two sacs of an indirect type were diagnosed.

CONCLUSION

Occurrence of two hernia sacs of an indirect type and canal of Nuck in female inguinal hernia is an extremely rare occurrence. This is the first case report in the world of a female indirect inguinal hernia being reported having two individual hernia sacs and a single canal of Nuck present. This hernia is named "the Srinagar" hernia after its region of origin.

The development of a person-centred self-report instrument to investigate quality-of-life aspects of gallstone surgery - The Gothenburg gallstone questionnaires (GGQ24pre & GGQ21post)

BACKGROUND

To develop and psychometrically test a condition-specific, patient-reported outcomes instrument for patients undergoing gallstone surgery.

METHODS

A mixed-methods design, including six gender-mixed patient focus-groups was used. Statements were thematically analysed and compared to PROMIS and the Gastrointestinal Quality of Life Index (GIQLI). A pilot questionnaire of 63 items and the full scale GIQLI was sent to preoperative and 30 items were sent to postoperative patients. Factor analysis identified structure and redundant items. Short versions were assessed to ensure internal reliability and validity. Unidimensionality was assessed via graded response model.

RESULTS

273 patients completed the questionnaires (preoperatively n = 104 and postoperatively n = 169). Factor and IRT analysis identified 13 domains with 45 questions. Internal reliability 0.75 to 0.93 in the preoperative and 0.73 to 0.90 in the postoperative questionnaire. A PROM questionnaire was developed with pre- and postoperative modules (24 questions, 8 domains and 21 questions, 5 domains).

CONCLUSION

This study has shown the validity of a disease specific Health Related Quality-of-Life (HRQoL) instrument in a population with gallstone disease and a post-operative module for follow-up. Further testing in a longitudinal cohort is recommended in order to establish responsiveness.

Reliability of transversus abdominis thickness and inter-recti distance during forced expiration with limb adduction in primiparous women following vaginal delivery

INTRODUCTION

The postpartum period involves significant biomechanical changes that impact maternal health, particularly in the activation of the transversus abdominis (TrA) and the inter-recti distance (IRD), which may contribute to lumbo-pelvic pathologies. While lumbopelvic exercises are beneficial, it remains unclear whether upper or lower limb adduction combined with forced expiration is more effective in activating the TrA. Therefore, the primary objective of this study is to analyze changes in TrA thickness and IRD during four conditions. The secondary objective is to evaluate the intra-observer reliability of these ultrasound measurements.

METHODS

This cross-sectional study, conducted with a sample of 32 participants, assessed TrA thickness (primary outcome) and IRD (secondary outcome), quantified under four conditions: (1) resting position, (2) forced expiration, (3) forced expiration with upper limb adduction, and (4) forced expiration with lower limb adduction. Differences between the four conditions were analyzed using repeated measures ANOVA. The intra-observer reliability of these measurements was evaluated using intraclass correlation coefficients (ICC).

RESULTS

A total of 32 primiparous women between January and April 2024 were included in this study with a mean postpartum period of 9 ± 2.33. Significant variations in TrA thickness were observed across conditions (p < 0.001). Differences were noted between resting and forced expiration (MD = -0.17, p < 0.001) and forced expiration with lower limb adduction (MD = -0.20, p < 0.001) on both sides. For the right TrA, forced expiration differed from upper limb adduction (MD = -0.04, p = 0.007), while no difference was found between upper and lower limb adduction (MD = -0.005, p > 0.05). For IRD, no significant differences were detected across conditions, including resting and lower limb adduction (MD = -0.018, p = 0.727). Excellent intra-examiner reliability was demonstrated for all ultrasound measurements (ICC (1,3) 0.92-0.99).

CONCLUSIONS

There were no significant differences in TrA thickness between forced expiration isolated and when combined with adduction exercises. The high ICC values confirm the robustness of ultrasound measurements for TrA and IRD, highlighting the potential for future research in postpartum rehabilitation strategies.

Safety and efficacy of prophylactic onlay resorbable synthetic mesh with a comprehensive wound bundle at laparotomy closure in high-risk emergency abdominal surgery: an observational study

BACKGROUND

There has been a slow uptake of wound bundles and prophylactic mesh augmentation (PMA) strategies despite evidence supporting their role in reducing burst abdomens and incisional hernias (IH). This study evaluates outcomes of resorbable synthetic prophylactic mesh augmentation in reducing these rates and assesses the complication profile in emergency abdominal surgery.

METHODS

A retrospective ethically approved observational study of all patients who underwent emergency open abdominal surgery using supplemental prophylactic onlay TIGR® Mesh at Letterkenny University Hospital between September 2017 and April 2024 was undertaken to assess safety, complication profiles and outcomes. Comprehensive wound bundles and subcutaneous space closure were used.

RESULTS

Of the 49 patients included, the mean age was 64 years (± 16.4, 31-86), 33/49 (67%) were female, and the mean body mass index (BMI) was 27 (± 7.4,17.3-45). 20% of patients had previous abdominal surgery. 19/49 (38%) patients experienced postoperative complications, of these 8 (42%) were Clavien-Dindo Grade I-II, and 11 (58%) were Grade III-IV. There were 7 in-hospital post-operative deaths (Grade V). 8 patients had open abdomens. Thirteen surgical site occurrences (SSO) were identified in 9 (18%) patients. There were no burst abdomens. Four of the superficial SSIs responded to antibiotics while one required opening and wound NPWT. Three patients (6%) developed an incisional hernia, which was detected at a mean follow-up of 353 days.

CONCLUSION

A comprehensive, evidence-based wound bundle using onlay PMA with a synthetic resorbable mesh, achieves efficacious, safe abdominal wall closure in high-risk, emergency laparotomy patients, including those who require delayed abdominal wall closure.

Swedish national guidelines for diagnosis and management of acute appendicitis in adults and children

BACKGROUND

Acute appendicitis is one of the most common causes of acute abdominal pain. Differences in the management of this large group of patients has important consequences for the patients and the healthcare system. Controversies regarding the understanding of the natural course of the disease, the utility of new diagnostic methods, and alternative treatments have lead to large variations in practice patterns between centres. These national guidelines present evidence-based recommendations aiming at a uniform, safe and cost-efficient management of this large group of patients.

METHOD

A working group of six experts with broad clinical and research experience was formed. Additional expertise from outside was consulted during the process. A national survey revealed significant variations in the management of patients with suspicion of appendicitis. The evidence provided in published guidelines and reviews were extracted and systematically graded, according to the GRADE methodology. This was supplemented by additional more recent and more directed search of the literature. Patients treated for appendicitis were involved through interviews. The guidelines were reviewed by external experts before the final version was determined.

RESULTS

The guidelines cover an extensive number of issues: pathology, epidemiology, aetiology, natural history, clinical and laboratory diagnosis, diagnostic scoring systems, diagnostic imaging, treatment, nursing care, follow-up, quality registers and quality indicators, among others. Special considerations related to children and pregnant women are covered.

CONCLUSION

These national guidelines present an extensive and thorough review of the current knowledge base related to appendicitis, and provide up-to-date evidence-based recommendations for the management of this large group of patients.

Hydrogel Innovations in Biosensing: A New Frontier for Pancreatitis Diagnostics

Pancreatitis is a prominent and severe type of inflammatory disorder that has grabbed a lot of scientific and clinical interest to prevent its onset. It should be detected early to avoid the development of serious complications, which occur due to long-term damage to the pancreas. The accurate measurement of biomarkers that are released from the pancreas during inflammation is essential for the detection and early treatment of patients with severe acute and chronic pancreatitis, but this is sub-optimally performed in clinically relevant practices, mainly due to the complexity of the procedure and the cost of the treatment. Clinically available tests for the early detection of pancreatitis are often time-consuming. The early detection of pancreatitis also relates to disorders of the exocrine pancreas, such as cystic fibrosis in the hereditary form and cystic fibrosis-like syndrome in the acquired form of pancreatitis, which are genetic disorders with symptoms that can be correlated with the overexpression of specific markers such as creatinine in biological fluids like urine. In this review, we studied how to develop a minimally invasive system using hydrogel-based biosensors, which are highly absorbent and biocompatible polymers that can respond to specific stimuli such as enzymes, pH, temperature, or the presence of biomarkers. These biosensors are helpful for real-time health monitoring and medical diagnostics since they translate biological reactions into quantifiable data. This paper also sheds light on the possible use of Ayurvedic formulations along with hydrogels as a treatment strategy. These analytical devices can be used to enhance the early detection of severe pancreatitis in real time.

Intraoperative Cholangiogram Interpretation for Laparoscopic Transcystic Bile Duct Exploration: Is Concurrence Possible?

Background

Laparoscopic transcystic bile duct exploration (LTCBDE) represents a secure and efficacious approach for managing common bile duct (CBD) stones, particularly in patients concurrently undergoing laparoscopic cholecystectomy (LC). The decision to proceed with LTCBDE hinges on real-time assessment of the intraoperative cholangiogram (IOC), which is highly operator-dependent and poorly interpreted. No established criteria exist to guide the evaluation of IOCs for LTCBDE. This study aims to ascertain the concordance among surgeons, experienced in LTCBDE, on critical aspects of IOC interpretation.

Methods

A retrospective collection of IOC images of 40 patients who underwent LC, IOC, and LTCBDE at a tertiary university hospital between 2017 and 2018 was undertaken. Two hepato-pancreato-biliary (HPB) and 2 acute care surgery (ACS) specialists independently reviewed the images. They were tasked with assessing IOC features hypothesized to influence duct exploration and stone extraction complexity, along with overall suitability for LTCBDE based exclusively on the IOC images. Agreement percentages were calculated and Kappa inter-rater reliability statistics were assessed.

Results

The overall agreement percentages concerning IOC features ranged between 52.5% and 82.5% with agreements surpassing 75% deemed robust. Maximum agreement was achieved in the interpretation of cystic duct morphology, whether straight or characterized by spiral valves. The concurrence for amenability of LTCBDE also demonstrated substantial accord among surgeons (ACS: 92.5%, HPB: 95%, total: 87.5%). Consistently high agreement was evident within specialty groups.

Conclusions

Anatomical attributes displayed superior agreement levels, as opposed to variables necessitating measurements. We recommend the development of a structured approach for the interpretation of IOC to facilitate surgical education in LTCBDE.

Fast-tracking ERCP learning with the Boškoski-Costamagna Trainer: results of a multicenter randomized clinical trial

BACKGROUND

Achieving competence in endoscopic retrograde cholangiopancreatography (ERCP) requires extensive training. Recognizing the potential of simulator-based education for safe and effective skill development, we aimed to assess whether initial training with the Boškoski-Costamagna ERCP Trainer (BCT) is beneficial compared with conventional training alone (i.e. predictive validity).

METHODS

A prospective multicenter randomized trial involving 16 novice ERCP trainees, randomly assigned to intervention or control groups, was performed. Both underwent hands-on training, with the intervention group receiving additional simulation training during the first 3 months. Each trainee was required to complete a minimum of 60 ERCPs in up to 1 year. The TEESAT score evaluated rates of global overall competence (primary outcome), biliary cannulation, and adverse events (AEs; secondary outcomes). Mixed-effect logistic regression models assessed differences in between-group ERCP procedure competence and success. Learning curves were generated cumulatively over the training period.

RESULTS

1106 ERCPs (562 simulator group; 544 control group) were included. Although no statistically significant difference in global overall competence was observed between the groups, possibly owing to data heterogeneity, simulation training demonstrated higher success for native biliary cannulation (52% vs. 42%; P<0.001) and faster median (interquartile range) biliary cannulation times (3 [6] vs. 5 [8] minutes; P<0.001). The simulator group also showed faster improvements in overall performance, native biliary cannulation, and sphincterotomy. No statistical difference was found in overall AEs between the groups.

CONCLUSION

Early simulation training with the BCT improved technical competence in native biliary cannulation and accelerated overall ERCP learning. This approach has the potential to enhance ERCP training programs.

A prospective study on the effect of reoperations on abdominal pain after bariatric surgery: the OPERATE study

BACKGROUND

Abdominal pain after bariatric surgery (BS) is not uncommon. A number of patients require reoperation. Limited studies have investigated the outcome of reoperations for abdominal pain after BS.

OBJECTIVES

To assess abdominal pain and quality of life after reoperation in patients with abdominal pain after BS.

SETTING

Bariatric center in the Netherlands.

METHODS

The study involved patients with a reoperation for abdominal pain after BS. Patients completed questionnaires on abdominal complaints and quality of life after inclusion, 3 months, and 6 months after reoperation. Clinical data were collected from records. Patients were compared on the basis of preoperative provisional diagnoses and postoperative diagnoses.

RESULTS

A total of 179 patients were included, with laparoscopic Roux-en-Y gastric bypass (86.0%), at a median of 27 months [9.5-76.0] after BS. Six months after reoperation, 51.6% continued to experience pain. However, a decline in pain severity was observed (visual analog scale baseline 83.50 [75.0-95.0] and 6 months 0 [.0-44.0] (P < .001). Patients without postoperative diagnosis had more pain after 6 months (P = .048). Gastrointestinal Quality of Life Index improved over time for all patients (94-110) (P < .001); however, no significant improvement was observed in patients without a preoperative provisional diagnosis. The general indication of health decreased for all patients (P < .001).

CONCLUSIONS

Abdominal pain intensity decreased during follow-up upon reoperation after BS; however, in approximately one half of the patients, the pain remained and a decline in general health indication was observed regardless of postoperative diagnosis. These findings underscore the need for comprehensive management strategies to address post-BS pain and well-being.

MicroRNA-335 inhibits invasion and metastasis of prostate cancer by inhibiting glutamine metabolism pathway

MicroRNAs play a crucial role in regulating tumor progression and invasion. Nevertheless, the expression of miRNA-335 in prostate cancer (PCa) and its clinical significance remain unelucidated. Here, we report that miRNA-335 functions as a tumor suppressor by regulating expression of glutaminase 1 (GLS1), a key enzyme of glutamine metabolism pathway, in PCa. In this study, we show that the expression of miRNA-335 is downregulated in PCa tissues. The level of miRNA-335 is even lower in highly invasive PCa cell lines. Furthermore, enhancing the expression of miRNA-335 inhibits PCa cell migration and invasion in vitro. Additionally, we identify GLS1 as the downstream effector, governed by miRNA-335 via 3'-untranslated region, and the direct regulation is verified by dual luciferase reporter assay. MiRNA-335 interrupts glutamine catabolism by inhibiting GLS1 enzymatic activity. Overexpression of miRNA-335 markedly suppresses tumor growth of PCa in vivo. To sum up, our results indicate that miRNA-335 acts as a tumor suppressor and has an important role in restraining the metastasis of PCa cells by targeting GLS1. These discoveries indicate that miRNA-335 could serve as a new prospective therapeutic target for PCa. SIGNIFICANCE STATEMENT: miRNA-335, a metabolism-related microRNA, is a potential therapeutic target for prostate cancer by interfering with glutaminase 1 activity.

Pancreatitis in children: practical management from the BSPGHAN Pancreatitis Working Group

Pancreatitis, a condition characterised by inflammation of the pancreas, has multiple aetiologies. Improving clinical proficiency in prompt diagnosis and effective management leads to better outcomes for children with acute pancreatitis, acute recurrent pancreatitis and chronic pancreatitis. Establishing consensus guidance via the British Society of Paediatric Gastroenterology Hepatology and Nutrition Pancreatitis Working Group has ensured further focus on these patients who are often cared for in a multidisciplinary framework and may prompt future research in this area. Initial assessment includes serum amylase/lipase, triglyceride levels, full blood count, C reactive protein, renal and liver function profile, glucose, calcium and capillary blood gas. Fasted transabdominal ultrasound for all children and young people with suspected pancreatitis is recommended to identify pancreatic parenchyma and pancreatobiliary ductal changes, and complications. For fluid resuscitation, use crystalloids or Ringer’s lactate: initial bolus of 10 to 20 mL/kg, 1.5–2 times maintenance volume, with hourly monitoring of urine output over the initial 24–48 hours. Initiate oral intake within the first 24 hours after fluid resuscitation; fat restriction is not recommended. For suspected autoimmune pancreatitis, workup includes immunoglobulin levels (IgG, IgM, IgA, IgG subclasses), complement components and autoantibody profile to confirm diagnosis. Significant interventional management for pancreatitis and related complications is performed via endoscopic retrograde cholangiopancreatography or endoscopic ultrasound; referral to a specialised paediatric hepatobiliary surgical team is highly recommended. Close collaboration with a specialist centre can improve diagnostic and management pathways and outcomes for children.

Predictors of failure of conservative management of cholecystitis: a systematic review of the literature

OBJECTIVES

While emergency cholecystectomy is the preferred treatment for acute cholecystitis, conservative management can be used as a bridge to definitive surgical management in situations where emergency surgical services are limited. The objective of this systematic review is to identify factors associated with conservative management failure as defined as either failed resolution of symptoms on initial presentation, or the recurrence of symptoms whilst awaiting an elective cholecystectomy. This study aims to allow clinicians to make evidence-based recommendations for conservative versus operative management.

METHODS

A systematic review of the Medline database was conducted in May 2022 to identify studies analysing the success of non-operative management of acute cholecystitis. Two independent reviewers selected studies based on predefined criteria, and the risk of bias was evaluated. Out of the initial 1344 studies retrieved, 12 studies met the inclusion criteria.

RESULTS

Factors significantly associated with persistence of symptoms in at least one study on multivariable analysis included diabetes mellitus, age >70, tachycardia, elevated temperature, elevated white cell count >15 000/uL and a distended gallbladder >5 cm. Factors significantly associated with recurrence of symptoms included Age <40 or >80, male sex, acute cholecystitis grade 2 or 3, elevated creatinine, serum albumin <4 g/dL, thickened gallbladder wall >5 mm.

CONCLUSION

Several factors have been identified which may facilitate future evidence-based recommendations for tailored management strategies for patients with acute cholecystitis.

Bariatric surgery and relevant comorbidities: a systematic review and meta-analysis

BACKGROUND

Obesity is a growing epidemic in the United States, and with this, has come an increasing volume of metabolic surgery operations. The ideal management of obesity-associated medical conditions surrounding these operations is yet to be determined. This review sought to investigate the routine use of intraoperative cholangiogram (IOC) with cholecystectomy during or after a bypass-type operation, the ideal management of post-sleeve gastrectomy gastroesophageal reflux disease (GERD), and the optimal bariatric operation in patients with known inflammatory bowel disease (IBD).

METHODS

Using medical literature databases, searches were performed for randomized controlled trials (RCTs) and non-randomized comparative studies from 1990 to 2022. Each study was screened by two independent reviewers from the SAGES Guidelines Committee for eligibility. Data were extracted while assessing the risk of bias using the Cochrane Risk of Bias 2.0 Tool and the Newcastle-Ottawa Scale for RCTs and cohort studies, respectively. A meta-analysis was performed using random effects.

RESULTS

Routine use of IOC was associated with a significantly decreased rate of common bile duct injury and a trend towards decreased intraoperative complications, perioperative complications, and mortality. The rates of reoperation, postoperative pancreatitis, cholangitis, and choledocholithiasis were low in the routine use of the IOC group, but no non-routine use studies evaluated these outcomes. After sleeve gastrectomy, GERD-specific quality of life was significantly higher in the surgically treated group compared to the medically treated group. Bypass-type operations had worse outcomes of IBD sequelae than sleeve gastrectomy, including pain, patient perception, and fistula formation. Sleeve patients had lower mortality and fewer short- and long-term complications.

CONCLUSIONS

Low-quality data limited the conclusions that were drawn; however, trends were observed favoring the routine use of IOC during cholecystectomy for patients with bypass-type anatomy, surgical treatment of GERD post-sleeve gastrectomy, and sleeve gastrectomy in IBD patients. Future research proposals are suggested to further answer the questions posed.

Initial Management of Acute Pancreatitis

The initial management of acute pancreatitis (AP) is continually evolving. Goal-directed moderate fluid resuscitation is now preferred over more aggressive strategies. Antibiotics should be administered only when there is a proven or highly probable infection rather than for prophylactic purposes. Urgent endoscopic retrograde cholangiopancreatography would be beneficial for patients with acute cholangitis. Same-admission cholecystectomy for mild biliary PA is safe, efficiently prevents relapse, and is associated with lower costs compared with interval cholecystectomy. Ongoing research into novel pharmacologic treatments and strategies is essential for further advancements in AP management.

Surgeon Gender and Early Complications in Elective Surgery: A Systematic Review and Meta-analysis

OBJECTIVE

To examine the association between surgeon gender and early postoperative complications, including 30-day death and readmission, in elective surgery.

BACKGROUND

Variations between male and female surgeon practice patterns may be a source of bias and gender inequality in the surgical field, perhaps impacting the quality of care. However, there are limited and conflicting studies regarding the association between surgeon gender and postoperative outcomes.

METHODS

MEDLINE and Embase were searched in October 2023 for observational studies, including patients who underwent elective surgery requiring general or regional anesthesia across multiple surgical specialties. Multiple independent blinded reviewers oversaw the data selection, extraction, and quality assessment according to the PRISMA, MOOSE, and Newcastle Ottawa Scale guidelines. Data were pooled as odds ratios, using a generic inverse-variance random-effects model.

RESULTS

Of 944 abstracts screened, 11 studies were included in this systematic review and meta-analysis. A total of 4,440,740 postoperative patients were assessed for a composite primary outcome of mortality, readmission, and other complications within 30 days of elective surgery, with a total of 325,712 (7.3%) surgeries performed by 7072 (10.9%) female surgeons. There was no association between surgeon gender and the composite of mortality, readmission, and/or complications (odds ratio=0.97, 95% CI 0.95-1.00; I2 =64.9%; P =0.001).

CONCLUSIONS

These results support that surgeon gender is not associated with early postoperative outcomes, including mortality, readmission, or other complications in elective surgery. These findings encourage patients, health care providers, and stakeholders not to consider surgeon gender as a risk factor for postoperative complications.

Small-bites versus large-bites closure of midline laparotomies: A systematic review and meta-analysis

AIM

Surgical site infection (SSI) and incisional hernia (IH) are common complications following midline laparotomy. The small-bites technique for closing a midline laparotomy has been suggested to improve SSI and IH rates compared with the classic mass closure. The aim of this work was to perform a systematic review, meta-analysis and fragility assessment of existing evidence comparing small-bites and conventional closure.

METHOD

The study was registered with PROSPERO. A systematic search of PubMed and EMBASE databases was performed for all comparative studies examining small-bites versus conventional closure for midline laparotomy. The fragility index for randomized controlled trials (RCTs) was assessed and the number of outcomes required to render results insignificant using the Fisher exact test was calculated.

RESULTS

Seven studies were included, with a total of 3807 patients. Small bites was performed in 1768 and large bites in 2039. Follow-up ranged from 12 to 52 months. On meta-analysis of all studies, small bites is associated with a lower risk of IH (p < 0.00001), SSI (p = 0.0002) and wound dehiscence (p = 0.02). On meta-analysis of RCTs there is a lower risk of IH (p = 0.01) but no difference in SSI (p = 0.06) or wound dehiscence (p = 0.73). Fragility is evident among RCTs reporting differences in IH rates.

CONCLUSION

There is evidence to suggest that small-bites closure provides a decreased likelihood of IH over varying follow-up in RCTs but significant fragility exists among studies.

A DIEP Dive into Patient Risk Factors for Hernia and Bulge Development: A Meta-regression

BACKGROUND

 This meta-regression aims to investigate risk factors for abdominal hernia and bulge in patients undergoing deep inferior epigastric perforator (DIEP) flaps and the effect of prophylactic mesh placement on postoperative complications.

METHODS

 A systematic search was conducted in July of 2022 in alignment with the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Seventy-four studies published between 2000 and 2022 met the inclusion criteria. Sixty-four studies were included in the analysis for bulge and 71 studies were included in the analysis for hernia. Meta-regressions were run on the proportion of patients experiencing hernia or bulge to assess for patient risk factors and the role of prophylactic mesh placement. Proportions were transformed using the Freeman-Tukey double arcsine method.

RESULTS

 The average rates of hernia and bulge after DIEP flaps were found to be 0.18% and 1.26%, respectively. Increased age (β = 0.0059, p = 0.0117), prior abdominal surgery (β = 0.0008, p = 0.046), and pregnancy history (β = -0.0015, p = 0.0001) were significantly associated with hernia. Active smoking (β = 0.0032, p = 0.0262) and pregnancy history (β = 0.0019, p < 0.0001) were significantly associated with bulge. Neither the perforator vessel laterality nor the number of perforator vessels harvested had any association with hernia or bulge. Prophylactic mesh placement was not associated with hernia or bulge.

CONCLUSION

 Understanding the comorbidities associated with hernia or bulge following DIEP flap breast reconstruction, such as advanced age, prior abdominal surgery, pregnancy history, and active smoking status, allows surgeons to proactively identify and educate high-risk patients. Future studies may further explore whether prophylactic mesh placement offers patients any benefit.

Impact of the COVID-19 Pandemic on the Management of Groin Hernia Repairs: A Nationwide Population-Based Study From the Swedish Hernia Register

Objective

The aim is to assess the impact of COVID-19 pandemic on delays in elective surgeries for symptomatic groin hernias in Sweden.

Background

In Sweden, over 16,000 groin hernia repairs are performed annually, primarily in elective daycare settings. The COVID-19 pandemic led to the temporary postponement of all elective surgeries to reallocate healthcare resources and limit viral transmission.

Methods

This nationwide population-based study utilizing data from the Swedish Hernia Register compared groin hernia repairs before (2015-2019) and during (2020-2021) the pandemic. Multivariable logistic regression analysis stratified by gender was employed for the outcomes. The main outcomes were risks of emergency repair, severe complications (Clavien-Dindo ≥3b), 30-day mortality, and reoperation for recurrence.

Results

A total of 109,459 groin hernia repairs (n = 98 156 in men and n = 11 303 in women) were analyzed. The number of elective repairs declined by 22.9%, while emergency repairs only increased by 2.2% in 2020. Women had a higher risk of emergency repair during the pandemic (odds ratio: 1.38, P < 0.001) and presented notably higher crude rates of 30-day mortality and bowel resection compared with men in both cohorts. However, the overall risks in the population remained stable despite these shifts.

Conclusions

"Watchful waiting" for symptomatic groin hernias due to postponement of elective repairs in men appears safe regarding the risks of emergency repair and severe complications, in contrary to women. While elective repairs can temporally be deferred during crises, careful consideration should be given to women. Given this large-scale study, watchful waiting may not be appropriate for women in future healthcare crises, warranting further investigations.

Neutrophil percentage-to-albumin ratio as a predictor of conservative treatment failure in acute cholecystitis: a retrospective cohort study

BACKGROUND

While early laparoscopic cholecystectomy is the standard treatment for acute cholecystitis, conservative management remains necessary in specific scenarios such as high-risk patients or resource-limited settings. This study evaluated the predictive value of neutrophil percentage-to-albumin ratio (NPAR), a biomarker derived from routine laboratory tests, alongside established inflammatory markers and clinical parameters in identifying patients at risk of conservative treatment failure.

METHODS

In this retrospective cohort study at 2 tertiary centers (2020-2023), we analyzed 508 patients with acute cholecystitis who received conservative management. The study period coincided with the COVID-19 pandemic when healthcare resource constraints led to increased utilization of conservative management. Using admission laboratory data, we calculated NPAR, neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and assessed Charlson Comorbidity Index (CCI) and American Society of Anesthesiologists Physical Status (ASA-PS) classification. Receiver operating characteristic analysis and logistic regression were performed to evaluate their predictive value.

RESULTS

Conservative treatment failed in 107 patients (21.1%). Risk assessment showed higher proportions of CCI ≥ 6 (32.7% vs. 22.9%; P =.008) and ASA-PS class III-IV (16.8% vs. 8.0%; P =.002) in the failed treatment group. NPAR demonstrated superior predictive performance (area under curve, 0.906 [95% CI, 0.867-0.944]) compared with NLR (0.810 [0.765-0.855]) and PLR (0.614 [0.554-0.673]). The optimal NPAR cutoff value of 21.5 showed sensitivity of 88.8% and specificity of 84.8%. In multivariable analysis, NPAR > 21.5 emerged as the strongest independent predictor (adjusted odds ratio, 19.876 [95% CI, 8.934-42.651]; P <.001), followed by fever > 37.8 °C (2.845 [1.476-5.483]; P =.002) and leukocytosis (2.234 [1.112-4.485]; P =.024). Most treatment failures (77.6%) occurred within 48 h, requiring emergency surgery (57.9%), percutaneous drainage (37.4%), or endoscopic interventions (4.7%).

CONCLUSIONS

NPAR, combined with fever and leukocytosis, provides a practical and cost-effective framework for predicting conservative treatment failure in acute cholecystitis using routine laboratory tests. Although our study was conducted during the COVID-19 pandemic, these findings remain valuable for any clinical setting where conservative treatment is considered. The 48-hour window for most treatment failures provides a practical timeframe for clinical monitoring and intervention decisions.

Predictive Limitations of the Geriatric Trauma Outcome Score: A Retrospective Analysis of Mortality in Elderly Patients with Multiple Traumas and Severe Traumatic Brain Injury

Background/Objectives: The Geriatric Trauma Outcome Score (GTOS) is used to predict in-hospital mortality in geriatric patients with trauma. However, its applicability to elderly patients with multiple traumas and severe traumatic brain injury (TBI) remains poorly understood. This study aimed to evaluate the predictive accuracy of the GTOS in elderly patients with multiple traumas and TBI and assess its performance in patients with mild and severe TBI. Methods: We retrospectively analyzed 1283 geriatric multiple trauma patients (aged ≥ 65 years) treated at a regional trauma center from 2019 to 2023. Patients were stratified into mild (head Abbreviated Injury Scale [AIS] ≤ 3) and severe (head AIS ≥ 4) TBI groups. GTOS values were calculated for each patient, and predicted mortality was compared with in-hospital mortality. GTOS predictive accuracy was assessed by analyzing the receiver operating characteristic curve. Results: Patients had a median Injury Severity Score of 18 (interquartile range: 10-25); 33.3% of patients received red blood cell transfusions within 24 h. The overall in-hospital mortality rate was 17.9%; GTOS predicted a mortality rate of 17.6% ± 0.17. The GTOS accurately predicted the in-hospital mortality in the entire cohort, achieving an Area Under the Curve (AUC) of 0.798. Predictive accuracy diminished for patients with severe TBI (AUC = 0.657), underestimating actual mortality (39.5% vs. 28.8% predicted). Conclusions: While the GTOS remains a useful tool for predicting in-hospital mortality in elderly patients with multiple traumas, it consistently underestimates mortality risk in those with severe TBI. Therefore, applying the GTOS in this patient subgroup warrants careful consideration.

Prophylactic antibiotics in laparoscopic cholecystectomy: Reducing postoperative infection risk-A meta-analysis and trial sequential analysis

Background

The impact of prophylactic antibiotics on postoperative infection following laparoscopic cholecystectomy remains controversial. This meta-analysis and trial sequential analysis aims to assess the efficacy of prophylactic antibiotics in reducing the risk of postoperative infection following laparoscopic cholecystectomy.

Methods

Multiple databases including PubMed, Cochrane Library, EMBASE, and Web of Science were systematically searched to identify relevant randomized controlled trials (RCTs) published from inception to January 23, 2024. This study analyzed endpoints such as infection complications (IC) and surgical site infections (SSI). RCTs comparing prophylactic antibiotics versus placebo or no treatment in patients undergoing laparoscopic cholecystectomy were included. Data extraction and meta-analysis were performed. Additionally, trial sequential analysis was conducted to assess the robustness of evidence in meta-analysis.

Results

Thirty-six RCTs with 9386 patients were included. The IC and SSI in prophylactic antibiotics group were significantly lower [pooled log risk-ratio (log RR): 0.37, 95 % confidence interval (CI):(-0.60, -0.14), p = 0.0017; pooled log RR: 0.30, 95 % CI (-0.51, -0.09), p = 0.01]. Trial sequential analysis revealed relative risk reductions of 33.09 % for IC and 27.96 % for SSI. Trial sequential analysis suggesting that the current evidence is robust. Studies involving low-risk patients and those with acute cholecystitis inclusion did not demonstrate a clear advantage in SSI reduction with prophylactic antibiotics.

Conclusion

Prophylactic antibiotics significantly reduces the risk of postoperative infection in patients undergoing laparoscopic cholecystectomy. Moreover, the lack of research on the impact of prophylactic antibiotics on postoperative infections in patients with acute cholecystitis undergoing laparoscopic cholecystectomy underscores the importance of further investigation.

Comparison of Incisional Hernia Rates Between General and Gynecological Surgery Procedures

Background and Objectives: Incisional hernias are a common and costly complication of surgery, occurring in up to 20% of midline incisions within 3 years of initial operation. Risk factors for incisional hernia include incision site, fascial closure technique, body mass index (BMI), surgical site infections, and gastrointestinal surgery. Limited studies have compared procedural type as a risk factor for hernia formation. The goal of this study was to examine incisional hernia rates among general surgical and gynecologic procedures. Materials and Methods: We queried our Research Data Warehouse for inpatients who had undergone common open abdominal surgeries between January 2012 and December 2022. Patients' index operations were identified based upon Current Procedural Terminology (CPT) codes and presence of a postoperative incisional hernia was determined by occurrence of an incisional hernia ICD10 diagnosis code more than 2 weeks postoperatively. The main study outcome was time to incisional hernia diagnosis. Results: A total of 4447 patients were identified. Postoperatively, 241 (5.4%) patients were diagnosed with incisional hernias. Hernia rates at 1, 3 and 5 years were 3% (SE 0.003), 6% (0.004) and 8% (0.005), respectively. Patients undergoing exploratory laparotomy (hazard ratio 3.9, p < 0.001), bowel resection (HR 5.5, p < 0.001), and primary hernia repair (HR 13.0, p < 0.001) were found to have significantly increased risk for incisional hernia development compared to those undergoing hysterectomy, following adjustment for comorbid risks, age, sex, and BMI. Conclusions: Exploratory laparotomy, bowel resection, and primary ventral hernia repair are associated with a higher incidence of incisional hernia relative to gynecologic procedures. This relatively unstudied comparison warrants further investigation.

MRI in Prostate Cancer Screening: A Review and Recommendations, From the AJR Special Series on Screening

Traditional PSA-based screening for prostate cancer (PCa) is challenged by an unfavorable benefit-to-harm ratio from underdiagnosis of clinically significant cancers, overdiagnosis of indolent cancers, and unnecessary biopsies, despite demonstrated reductions in PCa mortality. Inclusion of MRI in screening algorithms helps address these limitations by improving risk stratification of men suspected to have PCa and enabling targeted biopsies. The impact of MRI-based strategies on screening's benefit-to-harm ratio can be objectively assessed using ratios reflecting clinically significant cancers detected, indolent cancers detected, unproductive biopsies, and avoided biopsies. Among two overarching MRI-based screening strategies (sequential MRI after PSA testing and MRI alone), the sequential strategy is favored as a balanced and scalable approach. This article provides a detailed analysis of the role of MRI in PCa screening, targeted to radiologists. Recommendations are provided for optimizing use of MRI in PCa screening, including individualized risk assessments, tailored protocols, quality assurance for ensuring reliable and reproducible results, and consideration of new screening-specific scoring systems and biopsy thresholds. Ultimately, successful integration of MRI in PCa screening will require radiologists to actively engage in refining protocols, standardizing interpretations, and adopting emerging technologies. Such efforts will help maximize benefits while minimizing harms, enabling wider acceptance of PCa screening.