A Novel Taxonomy of Intraoperative Cholangiograms in Suspected Choledocholithiasis: A Tool for Advancing Laparoscopic Common Bile Duct Exploration Outcomes Research

BACKGROUND

Cholangiography for visualization of the biliary tree during laparoscopic cholecystectomy is an important diagnostic roadmap in the context of suspected choledocholithiasis (CDL). The renewed interest in transcystic laparoscopic common bile duct exploration (LCBDE) necessitates a general description of the range of CDL presentations. Our aim was to establish a novel classification system of intraoperative cholangiograms (IOCs) to advance research efforts in this field.

METHODS

A novel cholangiogram classification system, featuring 8 distinct presentations of choledocholithiasis, was applied to a data set of 80 preintervention IOCs for suspected choledocholithiasis. The classification system is as follows: A (no common bile duct stones, duodenal filling present, and concern for air bubbles), B (no common bile duct stones, no duodenal filling, and concern for sludge), C1 (stone(s) < 2x size of cystic duct with duodenal filling), C2 (stone(s) < 2x size of cystic duct without duodenal filling), D1 (stone(s) ≥ 2x size of cystic duct with duodenal filling), D2 (stone(s) ≥ 2x size of cystic duct without duodenal filling), E1 (congenital anatomical variant and/or common duct stricture), and E2 (surgically altered biliary anatomy).

RESULTS

Cholangiogram review yielded preintervention classifications for 6 of 8 variants (A-E): A (7.5%), B (3.75%), C1 (23.75%), C2 (42.5%), D1 (15%), and D2 (7.5%). Analysis of cystic duct diameter yielded no significant differences among classification groups, indicating no predominant pattern of cystic duct anatomy within a given classification.

DISCUSSION

An IOC classification system for suspected choledocholithiasis is foundational to answering key clinical questions for transcystic laparoscopic common bile duct exploration.

Primary ventral and incisional hernias: comprehensive review

BACKGROUND

Primary ventral and incisional hernias are frequent conditions that impact the quality of life of patients. Surgical techniques for ventral hernia repair are constantly evolving and abdominal wall surgery has turned into a highly specialized field.

METHODS

This is a narrative review of the most recent and relevant literature on the treatment of primary ventral and incisional hernias performed by eight experts in ventral hernia surgery from across the world and includes review of classification systems, preoperative measures, descriptions of surgical techniques, and postoperative complications.

RESULTS

Repairs of primary ventral and incisional hernias range from simple open procedures in healthy patients with small defects to complex procedures when patients are co-morbid and have large defects. Optimizing patient-related risk factors before surgery is important to decrease complication rates. Surgical repair techniques from open repairs to minimally invasive procedures are described in detail in the review. Minimally invasive techniques are technically more demanding and take longer, but decrease the risk of surgical-site infections and shorten the duration of hospital stay.

CONCLUSION

Treatment of ventral hernias aims to improve the quality of life of patients. The risks and benefits of procedures should be weighed against patients' complaints and co-morbidities. Optimizing patient-related risk factors before surgery is important.

Geriatric nutritional risk index as a predictor of major postoperative complications in emergency femoral hernia patients

BACKGROUND

To evaluate the prognostic values of GNRI for major postoperative complications in emergency femoral hernia patients.

METHODS

In this cross-sectional study, we enrolled 105 emergency femoral hernia patients. GNRI was calculated using preoperative body weight, height, and serum albumin. The primary outcome was a composite of major postoperative complications. Univariable and multivariable logistic regression analyses were used to examine the association between GNRI and major complications. The ability of GNRI in detecting major complications was assessed by area under the curve (AUC).

RESULTS

The prevalence of low, moderate, and severe nutritional risk was 18.1%, 25.7%, and 10.5%. Five patients (4.8%) had major postoperative complications. Higher GNRI was associated with lower risk of major complications after adjusting for age and sex (aOR = 0.90, 95% CI: 0.81-1.00, P = 0.044). The AUC for GNRI identifying major complications was 0.812 (95% CI: 0.640-0.984, P = 0.019), and the optimal cut-point value was 90.96 (sensitivity: 80.0%; specificity: 72.0%).

CONCLUSIONS

GNRI is significantly associated with major postoperative complications. It is a simple and useful prognostic tool for femoral hernia patients in emergency settings.

Advanced breast, cervical and prostate cancer- Patient needs: systematic review

BACKGROUND

There are high rates registered globally of breast cancer, cervical and prostate. People going through have needs that cause an impact in their life's quality, especially in the final stages of the illness.

GOAL

To characterise the most evaluated and afflicted physical, emotional, roll, cognitive, social and spiritual needs of patients in the final stages of breast, cervical and prostate cancer.

INTERVENTIONS/METHODS

A thorough systematic search of databases such as Medline (Ovid) and Embase, from databases' creation throughout 31 December 2021. Quantitative studies were included to evaluate, from the adoption of tools, the dimensions or needs of people going under three types of cancer on final stages.

RESULTS

Twelve studies were included. More common symptoms such as nausea/vomiting and pain were the most evaluated with 83%. Fifty-eight per cent of papers studied the emotional function of people with breast and prostate cancer. Other 42% included roll, cognitive and social appreciations. Sexual, cognitive and physical, in that line, were the most affected. The most common questionnaires used to measure oncological patients on final stages were those from European Organisation for Research and Treatment of Cancer on its C-30, BR-23, C-15 PAL and CR-25 versions.

CONCLUSIONS

On breast and prostate cancer, the most affected aspect was the sexual dysfunction, while for cervical cancer, the physical function was the most altered one. Spiritual dimension was not included in any of the evaluated literature.

Long term inguinal pain comparing TEP to Lichtenstein repair: the TEPLICH RCT 8 years follow-up

PURPOSE

To investigate long-term chronic postoperative inguinal pain (CPIP), QoL and recurrence in patients with a primary inguinal hernia comparing TEP to Lichtenstein.

MATERIAL AND METHODS

A questionnaire-based follow-up containing the Inguinal Pain Questionnaire (IPQ), the Cunningham Pain Scale and SF-36 was done 8 years after the TEPLICH RCT. The main objective was non-ignorable pain last week according to IPQ. A phone interview was performed with patients reporting new non-ignorable pain and those having a suspected recurrence. Records were scanned for long-term CPIP and recurrences. A lost to follow-up analysis was performed.

RESULTS

A total of 322 of 366 patients (88%) completed the follow-up of mean 7.94 years (5-10.75 years). Non-ignorable pain last week was reported by 7.6% in TEP and 6.7% in Lichtenstein (p < 0.73). New non-ignorable pain was reported by 5 patients. No difference in non-ignorable pain over time (1-8 years) was observed within groups. Moderate to severe pain, according to Cunningham, was reported by 3.8% in TEP and 5.5% in Lichtenstein (p < 0.48). QoL remained above the Swedish norm. No recurrences occurred after 3 years follow-up. The lost to follow-up analysis showed no difference in non-ignorable pain.

CONCLUSIONS

RCTs, comparing TEP to Lichtenstein repair with follow-up ≥ 5 years regarding CPIP are sparse with conflicting data. In this study, low frequencies of CPIP present at 3 years seem to persist at 8 years. Recurrences occured within the first 3 years. Patients need to be informed of the risk of long-term CPIP.

Circulating tumor DNA-guided treatment decision in metastatic castration-resistant prostate cancer patients: a cost-effectiveness analysis

Background

The androgen receptor pathway inhibitors (ARPI), abiraterone acetate and enzalutamide, are commonly used in first-line treatment of patients with metastatic castration-resistant prostate cancer (mCRPC). However, early resistance to ARPI treatment occurs frequently. Traditionally, the response is evaluated 3-6 months after the start of treatment. However, recent findings indicate that by detecting circulating tumor DNA (ctDNA) at baseline and 4 weeks after ARPI treatment initiation, patients with a nondurable response can be identified after 4 weeks of treatment, enabling an early switch to alternative treatments.

Objective

This study aims to evaluate the cost-effectiveness of ctDNA-guided treatment switch after 4 weeks of ARPI therapy in mCRPC patients compared to standard of care.

Design

A cost-effectiveness analysis.

Methods

A cost-effectiveness analysis was conducted by creating a Markov state transition model to simulate progression, mortality, and treatment costs over a 5-year time horizon comparing ctDNA-guided care versus standard of care. The outcomes measured were incremental treatment costs per life-years and quality-adjusted life-years (QALYs) gained.

Results

The analysis showed an incremental cost-effectiveness ratio of €65,400.86 per QALY gained and an incremental net monetary benefit of €2716.62. Thereby, the use of ctDNA-guided treatment was cost-effective in comparison to standard care in 74% of the simulations using a willingness-to-pay threshold of €80,000 per QALY gained.

Conclusion

Our study demonstrated the cost-effectiveness of using a ctDNA-guided early therapy switch in non-responders after only 4 weeks of first-line ARPI therapy in mCRPC patients. This paves the way for implementing ctDNA-guided treatment decisions in clinical practice.

Economic evaluation of expanding inguinal hernia repair among adult males in Sierra Leone

Sierra Leone faces a substantial backlog of patients with inguinal hernia in need of repair due to a shortage of surgical providers. The current mitigation strategy includes task-sharing with associate clinicians and non-specialist medical doctors, and the economic impact of this approach needs assessment for potential scale-up. This study aimed to assess the cost-effectiveness of open mesh repair of inguinal hernias by associate clinicians and non-specialist medical doctors in adult males (>18 years) compared to no treatment, as well as between the two provider types and to estimate the budget impact of clearing the backlog in Sierra Leone. A Markov model was constructed to calculate the cost per disability-adjusted life year (DALY) averted over 10 years for operations by different providers. Subsequently, the costs of reducing the backlog through accelerated repair rates via task-sharing were assessed under two scenarios, with or without a budget limit. Deterministic and probabilistic sensitivity analyses were conducted to evaluate the uncertainty of input values. Associate clinicians and non-specialist medical doctors achieved USD 250 and USD 411 per DALY averted, respectively, which is below the GDP per capita of USD 1,427. Associate clinicians delivered comparable health outcomes at lower costs than non-specialist medical doctors. A budget of USD 108 million was projected to clear the entire backlog over 10 years. Hernia repair by both associate clinicians and non-specialist medical doctors in Sierra Leone is highly cost-effective. Associate clinicians, with quality training and supportive supervision, are more cost-effective than non-specialist medical doctors. Task-sharing, especially with associate clinicians, is promising for optimizing access to surgical services.

Ultrasonographic evaluation of diastasis recti abdominis and its association with pelvic floor dysfunction in postpartum women: a cross-sectional study of a two-year retrospective cohort

Objective

This study aims to evaluate the ultrasonographic findings of Diastasis Recti Abdominis (DRA) in postpartum women, explore associated risk factors, and assess the relationship between DRA and pelvic floor dysfunction.

Methods

This retrospective cross-sectional study included 143 parturient women diagnosed with DRA at our institution from January 2022 to December 2023. The study aimed to assess the ultrasonographic characteristics and clinical implications of DRA in postpartum women. The study participants were aged 21-43 years, carried a single fetus to term without instrumental delivery, and had no prior abdominal surgery. We excluded incomplete records and cases with congenital lumbar spine abnormalities or significant visceral disease. Ultrasound was employed to evaluate the DRA features, specifically the condition of the abdominal midline and echo types. A control group comprised 57 women who had normal deliveries without DRA. The primary outcome of this study was the measurement of rectus abdominis separation using ultrasonography. Secondary outcomes included the assessment of pelvic floor muscle function via electromyography (EMG), evaluation of pain levels, and the identification of risk factors associated with diastasis recti.

Results

In the observation group, ultrasound revealed widened abdominal midlines in 122 cases (85.31%), discontinuity in 21 cases (14.68%), and various echo types indicating unequal, narrow band-like moderate, and slightly strong fibrous echoes. Significant differences were found in rectus abdominis separation and levator ani muscle hiatus area, with both being larger in the observation group compared to the control group (p < 0.05). Advanced maternal age, higher parity, higher pre-pregnancy BMI, and cesarean delivery were identified as significant risk factors for DRA occurrence in the logistic regression analysis.

Conclusion

DRA is prevalent among postpartum women with specific ultrasonographic profiles indicating considerable abdominal muscle separation. The study highlights the importance of ultrasound in diagnosing DRA and suggests that certain demographic and delivery method factors increase the risk of this condition. These findings could guide clinicians in early diagnosis and intervention, potentially improving outcomes for affected women.

Costs, efficiency, and patient-reported outcomes associated with suture-mediated percutaneous closure for atrial fibrillation ablation: Secondary analysis of a randomized clinical trial

INTRODUCTION

To evaluate the cost and efficiency of suture-mediated percutaneous closure (SMC) compared to manual compression (MC) after atrial fibrillation (AF) ablation. SMC has been demonstrated to be efficacious in reducing hemostasis and bedrest times after AF ablation. To date, randomized data comparing the direct and indirect cost between the two techniques have not been described.

METHODS

We conducted a 1:1 randomized trial comparing SMC to MC following AF ablation. The primary endpoints have been previously published. However, secondary endpoints pertinent to indirect cost including complication rates, hospital utilization (i.e., delays in discharge, additional patient encounters, nursing utilization), pain, patient reported outcomes, as well as the direct costs of care associated with AF ablation were collected. We also performed secondary analysis of the primary endpoint to evaluate for a learning curve, and subgroups analysis comparing efficacy across different numbers of access sites and compared to those in the MC group with a figure-of-eight suture (Fo8), that could potentially have impacted the relative efficiency of the procedure.

RESULTS

A total of 107 patients were randomized and included: 53 in the SMC group and 54 in MC. A learning curve was observed in the SMC group between the first and second half of the study group (p = 0.037), with no such difference in the MC group. After accounting for the number of access sites, time to hemostasis remained shorter in the SMC Group (p = 0.002). Compared to those in the Fo8 arm (n = 37), the time to hemostasis remained shorter in the SMC group (p = 0.001). Among those planned for same-day discharge, there were more delays in the MC group (31.5% vs. 11.3%, p = 0.0144). Rates of major and minor complications were similar between SMC and MC groups at discharge (p = 0.243) and 30 days (p = 1.00), as were nursing utilization, self-reported pain, and overall patient reported outcomes. The overall cost of care related to the procedure was similar between the MC and SMC groups ($56 533.65 [$45 699.47, $66 987.64] vs. $57 050.44 [$47 251.40, $66 426.34], p = 0.601).

CONCLUSION

SMC has been shown to decrease time to hemostasis and ambulation and facilitate earlier same-day discharge after AF ablation without an increase in direct or indirect costs.

Long-Term Outcomes of Diastasis Recti Abdominis in Postpartum Women: A Retrospective Cohort Study

INTRODUCTION AND HYPOTHESIS

The objective was to investigate whether diastasis recti abdominis (DRA) can cause adverse outcomes for different long-term postpartum women.

METHODS

We recruited 437 long-term postpartum women at five different time points (3, 5, 10, 20, and 30 years postpartum respectively). Inter-recti distance (IRD) and linea alba or umbilical hernia were measured by ultrasound. Strength of abdominal muscle was measured by a manual muscle test. Low back pain (LBP), urinary incontinence (UI) and quality of life (QOL) were measured by questionnaires including the Oswestry Disability Index, the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form, 36-Item Short Form Health Survey respectively.

RESULTS

Women with DRA experienced more severe LBP, and poorer QOL only 10 years postpartum according to the diagnostic criterion of IRD > 2cm. However, when the diagnostic criterion was raised to IRD > 3cm, women with DRA reported weaker abdominal muscle strength, more severe LBP 3, 5, and 10 years postpartum, poorer QOL 3, 5, 10, and 20 years postpartum, and higher incidence of linea alba or umbilical hernia 5 and 20 years postpartum.

CONCLUSIONS

When using IRD > 2cm as the diagnostic criterion, the impact of DRA is minimal. However, when utilizing IRD > 3cm as the diagnostic criterion, DRA is associated with increased linea alba or umbilical hernia, weakened abdominal muscle strength, increased LBP, and decreased QOL. Most of the effects are particularly evident within 3-10 years postpartum, but becomes insignificant 20 and 30 years postpartum. Therefore, it is necessary to consider whether the diagnostic criterion of DRA need to be improved.

Laparoendoscopic extraperitoneal surgical techniques for ventral hernias and diastasis recti repair: a systematic review

PURPOSE

this systematic review aims to classify and summarize the characteristics and outcomes of the different laparoendoscopic extraperitoneal approaches for the repair of ventral hernias and diastasis recti described in the last 10 years.

METHODS

a literature search was performed by two reviewers in December 2023 including articles from January 2013, 01 to December 2023, 15. The techniques were selected according to the surgical access site (anterior or posterior to the rectus sheath), the access type (laparoendoscopic, single incision laparoscopic, mini or less open), the main space used to repair the defect (subcutaneous or retromuscular) and the mesh place (onlay, sublay-retromuscular or sublay-preperitoneal) and classified as anterior or posterior approaches.

RESULTS

the literature search retrieved 1755 results and 27 articles were included in the study. The studies included 1874 patients, the mean age ranged from 37.8 to 60.2 years. The access site was anterior in 16 cases and posterior in 11 cases. The mesh was positioned onlay in 13 cases and sublay in 13 cases, with only one study using no mesh. Complications were: seroma, ranging from 0.8 to 81%, followed by skin complications (leak, ischemia, necrosis) from 0.8 to 6.4%, surgical site infections and bleeding. Recurrences ranged from 0% to 12,5%, with a mean follow-up from 1 to 24 months.

CONCLUSION

this systematic review confirms the presence of several new minimally invasive extraperitoneal techniques for the repair of abdominal wall defects, with different advantages and disadvantages. Further studies, with more extensive follow-up data and wider patient groups, are necessary to define specific indications for each technique.

Economic value of diastasis repair with the use of mesh compared to no intervention in Italy

AIM

Rectus abdominal diastasis (RAD) can cause mainly incontinence and lower-back pain. Despite its high incidence, there is no consensus regarding surgical indication. We aimed at comparing RAD repair (minimally invasive technique with mesh implant) with no treatment (standard of care - SOC) through cost-effectiveness and budget impact analyses from both National Healthcare Service (NHS) and societal perspectives in Italy.

METHODS

A model was developed including social costs and productivity losses derived by the online administration of a socio-economic questionnaire, including the EuroQol for the assessment of quality of life. Costs for the NHS were based on reimbursement tariffs.

RESULTS

Over a lifetime horizon, estimated costs were 64,115€ for SOC and 46,541€ for RAD repair in the societal perspective; QALYs were 19.55 and 25.75 for the two groups, respectively. Considering the NHS perspective, RAD repair showed an additional cost per patient of 5,104€ compared to SOC, leading to an ICUR of 824€. RAD repair may be either cost-saving or cost-effective compared to SOC depending on the perspective considered. Considering a current scenario of 100% SOC, an increased diffusion of RAD repair from 2 to 10% in the next 5 years would lead to an incremental cost of 184,147,624€ for the whole society (87% borne by the NHS) and to incremental 16,155 QALYs.

CONCLUSION

In light of the lack of economic evaluations for minimally invasive RAD repair, the present study provides relevant clinical and economic evidence to help improving the decision-making process and allocating scarce resources between competing ends.

Socioeconomic inequalities in patients undergoing abdominal wall reconstruction in the North-West of England, UK: a three-centre retrospective cohort study

PURPOSE

Patients from deprived areas are more likely to experience longer waiting times for elective surgery, be multimorbid, and have inferior outcomes from elective and emergency surgery. This study aims to investigate how surgical outcomes vary by deprivation for patients undergoing elective abdominal wall reconstruction.

METHODS

A three-centre retrospective cohort study was conducted across three hospitals in North-West England, including patients with complex ventral hernias undergoing abdominal wall reconstruction between 2013 and 2021. Demographic data, comorbidities, and index of multiple deprivation quintiles were recorded.

RESULTS

234 patients (49.6% female), age 57 (SD 13) years, underwent elective abdominal wall reconstruction. Significantly higher unemployment rates were found in the most deprived quintiles (Q1 and Q2). There were more smokers in Q1 and Q2, but no significant deprivation related differences in BMI, diabetes, chronic kidney disease or ischaemic heart disease. There were also higher rates of Clavien-Dindo 1-2 complications in Q1 and Q5, but no difference in the Clavien-Dindo 3-4 outcomes. Patients in Q1 and Q5 had a significantly greater hospital length of stay.

CONCLUSION

The association between deprivation and greater unemployment and smoking rates highlights the potential need for equitable support in patient optimisation. The lack of differences in patient co-morbidities and hernia characteristics could represent the application of standardised operative criteria and thresholds. Further research is needed to better understand the relationship between socioeconomic status, complications, and prolonged hospital length of stay.

No significant persistent symptoms from gallstones left in the abdomen after cholecystectomy

INTRODUCTION

Perforation of the gallbladder during cholecystectomy can lead to spillage of gallstones. The aim of this study was to examine if patients with gallstones left in the abdomen after cholecystectomy suffer persisting symptoms.

METHOD

This study was based on data from the Swedish Register for Gallstone Surgery. Patients with intraoperative gallbladder perforation where it is suspected that gallstones remain in the abdomen were matched with patients that had undergone a cholecystectomy with no suspicion of spilled gallstones. All patients were sent a validated questionnaire including 21 items concerning abdominal pain and inflammatory symptoms. Items were divided into four groups: abdominal pain, consequences of pain, gastrointestinal symptoms, and repeated operation. Mean scores were compared between the study group and the control group using a linear regression model.

RESULTS

The questionnaire was sent to 4269 subjects, and the response rate was 66 %. No significant differences were seen between the study and control groups in the four domains. In the repeated operation domain, 7.1 % in the study group and 5.3 % in the control group underwent a repeated operation (p = 0.057).

CONCLUSION

Gallstones left in the abdomen are not associated with long-term symptoms. There was a tendency towards a repeat operation in the group that suffered perforation of the gallbladder, although this finding was not significant.

Day case laparoscopic cholecystectomy: a review of patient selection factors and identification of potential barriers to same-day discharge

BACKGROUND

Day-case laparoscopic cholecystectomy (DCLC) is a useful tool for minimizing hospital admissions and prolonged presurgical wait times in suitable patient cohorts. There have been many international studies to support this finding and an increasing interest has grown in implementation in Australia. This review aims to provide clarity how to best implement this tool in gallbladder disease patient demographic.

OBSERVATIONS

This literature review evaluates studies on day-case cholecystectomy procedures, focusing on patient factors, procedural aspects, surgical morbidity, and systemic implications. It explores inclusion and exclusion criteria for day-case suitability, factors influencing same-day discharge, reasons for hospital admission, pain management, patient quality of life, patient satisfaction, and cost implications.

CONCLUSIONS

DCLC, when selected judiciously, is a safe alternative to overnight stay procedures for cholecystectomy with comparable surgical outcomes and patient satisfaction, affirming its viability. Strict patient selection criteria can aid in optimizing the successful implementation procedure, reducing unexpected admissions and readmissions and we have demonstrated useful criteria for guidance in establishing day-case laparoscopic cholecystectomy protocol at a hospital.

The safety and efficacy of primary duct closure after laparoscopic common bile duct exploration in patients with mild-to-moderate calculus-associated acute cholangitis: a retrospective cohort study

While laparoscopic common bile duct exploration with primary duct closure (LCBDE + PDC) has been considered a feasible and safe treatment for cholecystocholedocholithiasis, uncertainties remain regarding its effectiveness and safety in patients with mild-to-moderate calculus-associated acute cholangitis. Therefore, this study aims to investigate the safety and efficacy of LCBDE + PDC specifically in patients with mild-to-moderate acute cholangitis (AC). Patients with cholecystocholedocholithiasis who underwent LCBDE + PDC treatment at our hospital between July 2020 and September 2022 were included. The patients were divided into two groups based on the presence of cholangitis: acute cholangitis (AC group) and non-acute cholangitis (non-AC group). A total of 136 patients underwent LCBDE + PDC treatment, with 65 in the AC group and 71 in the non-AC group. No deaths occurred after surgery in either group. The AC group had longer drainage tube retention time (5 (4-7) days vs. 4 (3-5) days, P < 0.001), postoperative hospital stay (8 (6-9) days vs. 6 (5-7) days, P < 0.001), and total hospital stay (12 (9.5-15) days vs. 10 (8-13) days, P < 0.001) compared to the non-AC group. However, there were no significant differences between the two groups in terms of operation time, estimated blood loss, and the rate of using holmium laser lithotripsy. The incidence of postoperative complications was similar between the two groups. Our study demonstrates that LCBDE + PDC is a safe and feasible treatment for patients with mild-to-moderate calculus-associated acute cholangitis who meet the criteria for primary duct closure.

The Equipoise Ruler: A National Survey on Surgeon Judgment About the Value of Surgery

OBJECTIVE

To understand professional norms regarding the value of surgery.

BACKGROUND

Agreed-upon professional norms may improve surgical decision-making by contextualizing the nature of surgical treatment for patients. However, the extent to which these norms exist among surgeons practicing in the United States is not known.

METHODS

We administered a survey with 30 exemplar cases asking surgeons to use their best judgment to place each case on a scale ranging from "definitely would do this surgery" to "definitely would not do this surgery." We then asked surgeons to repeat their assessments after providing responses from the first survey. We interviewed respondents to characterize their rationale.

RESULTS

We received 580 responses, a response rate of 28.5%. For 19 of 30 cases, there was consensus (≥60% agreement) about the value of surgery (range: 63% to 99%). There was little within-case variation when the mode was for surgery and more variation when the mode was against surgery or equipoise. Exposure to peer response increased the number of cases with consensus. Women were more likely to endorse a nonoperative approach when treatment had high mortality. Specialists were less likely to operate for salvage procedures. Surgeons noted their clinical practice was to withhold judgment and let patients decide despite their assessment.

CONCLUSIONS

Professional judgment about the value of surgery exists along a continuum. While there is less variation in judgment for cases that are highly beneficial, consensus can be improved by exposure to the assessments of peers.

Patient and hospital factors influence surgical approach in treatment of acute cholecystitis

BACKGROUND

Minimally invasive (MIS) cholecystectomies have become standard due to patient and hospital advantages; however, this approach is not always achievable. Acute and gangrenous cholecystitis increase the likelihood of conversion from MIS to open cholecystectomy. This study aims to examine patient and hospital factors underlying differential utilization of MIS vs open cholecystectomies indicated for acute cholecystitis.

METHODS

This is a retrospective, observational cohort study of patients with acute cholecystitis who underwent a cholecystectomy between 2016 and 2018 identified from the California Office of Statewide Health Planning and Development database. Univariate analysis and multivariable logistic regression models were used to analyze patient, geographic, and hospital variables as well as surgical approach.

RESULTS

Our total cohort included 53,503 patients of which 98.4% (n = 52,673) underwent an initial minimally invasive approach and with a conversion rate of 3.3% (n = 1,759). On multivariable analysis advancing age increased the likelihood of either primary open (age 40 to < 65 aOR 2.17; ≥ 65 aOR 3.00) or conversion to open cholecystectomy (age 40 to < 65 aOR 2.20; ≥ 65 aOR 3.15). Similarly, male sex had higher odds of either primary open (aOR 1.70) or conversion to open cholecystectomy (aOR 1.84). Hospital characteristics increasing the likelihood of either primary open or conversion to open cholecystectomy included teaching hospitals (aOR 1.37 and 1.28, respectively) and safety-net hospitals (aOR 1.46 and 1.33, respectively).

CONCLUSIONS

With respect to cholecystectomy, it is well-established that a minimally invasive surgical approach is associated with superior patient outcomes. Our study focused on the diagnosis of acute cholecystitis and identified increasing age as well as male sex as significant factors associated with open surgery. Teaching and safety-net hospital status were also associated with differential utilization of open, conversion-to-open, and MIS. These findings suggest the potential to create and apply strategies to further minimize open surgery in the setting of acute cholecystitis.

Hybrid intraperitoneal onlay mesh repair for incisional hernias: a systematic review and meta-analysis

INTRODUCTION

Laparoscopic IPOM is technically challenging, especially regarding fascial closure. Hybrid repair has been proposed as a simpler approach. We aimed to compare hybrid and laparoscopic intraperitoneal onlay mesh repair (IPOM) in patients undergoing ventral hernia repair (VHR).

METHODS

We performed a systematic review of Cochrane, Scopus, and MEDLINE databases to identify studies comparing hybrid versus laparoscopic IPOM VHR reporting the outcomes of recurrence, mortality, seroma, postoperative complications, reoperation, surgical site infection, and operative time. Statistical analysis was performed using RStudio 4.1.2 using a random-effects model.

RESULTS

We screened 2,896 articles and fully reviewed 22 of them. A total of five studies, encompassing 664 patients were included. Among them, 337 (50.8%) underwent laparoscopic IPOM. All patients had incisional hernias, with a mean diameter varying from 3 to 12.7 cm, 60% were women, with a mean BMI varying from 29.5 to 38. The hybrid approach had a lower rate of seroma when compared to the laparoscopic (OR 0.22; 95% CI 0.05 to 0.92; p = 0.038; I²=78%). We found no difference in recurrence, mortality, postoperative complications, reoperation, surgical site infection, and operative time between groups.

CONCLUSION

Hybrid IPOM is a safe and effective method for incisional hernia repair. Moreover, it facilitates fascial defect closure and decreases postoperative seromas.

Evaluation of risk factors associated with the peritoneal flap hernioplasty for complex incisional hernia repair - a retrospective review of 327 cases

BACKGROUND

Repair of large incisional hernias is challenging, and the risks of postoperative complications have been associated with obesity, smoking, and diabetes. The present study was conducted to determine the impact of these risk factors on short and long-term outcomes following the repair with the peritoneal flap hernioplasty (PFH).

METHODS

Three hundred twenty-seven patients undergoing PFH for incisional hernia repair were identified. Patient demographics and clinical data were recorded. Patients presenting signs of complications were assessed during a visit to the outpatient clinic. A multivariable regression analysis was performed to evaluate the association between BMI, smoking and diabetes, and postoperative complications.

RESULTS

The study included 157 males (48.0%) and 170 females (52.0%). Median BMI was 30.9 kg/m2. Diabetes was present in 13.8% of patients. 23.2% were active smokers. The recurrence rate was 2.4%. The odds ratios for postoperative complications were increased by 9% per BMI unit (P < 0.01), due predominantly to a rise in superficial wound infections (P < 0.01) and seroma production (P = 0.07). The adjusted odds ratio increased fourfold in patients with BMI > 40 kg/m2 (P = 0.06).

CONCLUSION

Incisional hernia repair with the PFH technique is associated with a low risk of short and long-term complications. The risk is associated with obesity and significantly increased in patients with a BMI exceeding 40 kg/m2, where a fourfold increase was observed predominantly due to seroma and superficial wound infections. The recurrence rate was 2.4% and was unaltered across BMI categories. No association was established between smoking, diabetes, and the risk of all-cause complications.

Comparison of Postoperative Outcomes Among Patients Treated by Male Versus Female Surgeons: A Systematic Review and Meta-analysis

OBJECTIVE

To compare clinical outcomes of patients treated by female surgeons versus those treated by male surgeons.

BACKGROUND

It remains unclear as to whether surgical performance and outcomes differ between female and male surgeons.

METHODS

We conducted a meta-analysis to compare patients' clinical outcomes-including patients' postoperative mortality, readmission, and complication rates-between female versus male surgeons. MEDLINE, Embase, CENTRAL, ICTRP, and ClinicalTrials.gov were searched from inception to September 8, 2022. The update search was conducted on July 19, 2023. We used random-effects models to synthesize data and GRADE to evaluate the certainty.

RESULTS

A total of 15 retrospective cohort studies provided data on 5,448,121 participants. We found that patients treated by female surgeons experienced a lower postoperative mortality compared with patients treated by male surgeons [8 studies; adjusted odds ratio (aOR), 0.93; 95% CI, 0.88-0.97; I2 =27%; moderate certainty of the evidence]. We found a similar pattern for both elective and nonelective (emergent or urgent) surgeries, although the difference was larger for elective surgeries (test for subgroup difference P =0.003). We found no evidence that female and male surgeons differed for patient readmission (3 studies; aOR, 1.20; 95% CI, 0.83-1.74; I2 =92%; very low certainty of the evidence) or complication rates (8 studies; aOR, 0.94; 95% CI, 0.88-1.01; I2 =38%; very low certainty of the evidence).

CONCLUSION

This systematic review and meta-analysis suggests that patients treated by female surgeons have a lower mortality compared with those treated by male surgeons.

Are outcomes for emergency index-admission laparoscopic cholecystectomy performed by hepatopancreatobiliary surgeons better compared to non-hepatopancreatobiliary surgeons? A 10-year audit using 1:1 propensity score matching

BACKGROUND

Emergency index-admission cholecystectomy (EIC) is recommended for acute cholecystitis in most cases. General surgeons have less exposure in managing "difficult" cholecystectomies. This study aimed to compare the outcomes of EIC between hepatopancreatobiliary (HPB) versus non-HPB surgeons.

METHODS

This is a 10-year retrospective audit on patients who underwent EIC from December 2011 to March 2022. Patients who underwent open cholecystectomy, had previous cholecystitis, previous endoscopic retrograde cholangiopancreatography or cholecystostomy were excluded. A 1:1 propensity score matching (PSM) was performed to adjust for confounding variables (e.g. age ≥ 75 years, history of abdominal surgery, presence of dense adhesions).

RESULTS

There were 1409 patients (684 HPB cases, 725 non-HPB cases) in the unmatched cohort. Majority (52.3%) of them were males with a mean age of 59.2 ± 14.9 years. Among 472 (33.5%) patients with EIC performed ≥ 72 hours after presentation, 40.1% had dense adhesion. The incidence of any morbidity, open conversion, subtotal cholecystectomy and bile duct injury were 12.4%, 5.0%, 14.6% and 0.1%, respectively. There was one mortality within 30 days from EIC. PSM resulted in 1166 patients (583 per group). Operative time was shorter when EIC was performed by HPB surgeons (115.5 vs. 133.4 min, P < 0.001). The mean length of hospital stay was comparable. EIC performed by HPB surgeons was independently associated with lower open conversion [odds ratio (OR) = 0.24, 95% confidence interval (CI): 0.12-0.49, P < 0.001], lower fundus-first cholecystectomy (OR = 0.58, 95% CI: 0.35-0.95, P = 0.032), but higher subtotal cholecystectomy (OR = 4.19, 95% CI: 2.24-7.84, P < 0.001). Any morbidity, bile duct injury and mortality were comparable between the two groups.

CONCLUSIONS

EIC performed by HPB surgeons were associated with shorter operative time and reduced risk of open conversion. However, the incidence of subtotal cholecystectomy was higher.

Trends and predictors of laparoscopic compared with open emergent inguinal hernia repair

BACKGROUND

Laparoscopic emergent inguinal hernia repair remains controversial despite studies suggesting it is safe and feasible. Variables associated with laparoscopic compared with open emergent inguinal hernia repair are currently not well described. This study aims to investigate patient characteristics and risk factors associated with laparoscopic emergent inguinal hernia repair.

METHODS

The American College of Surgeons National Surgical Quality Improvement database was queried for adult patients (age ≥18 years) who had undergone emergent inguinal hernia repair between 2015 and 2021. The relationships between demographic variables and laparoscopic compared with open emergent inguinal hernia repair were evaluated using univariate and multivariate analyses.

RESULTS

A total of 8,215 patients were included in this analysis. Use of laparoscopic emergent inguinal hernia repair increased from 9% in 2015 to 23% in 2021. Female patients (odds ratio, 1.84, P < .001) and patients aged ≤65 years (odds ratio, 1.25, P = .005) were more likely to undergo laparoscopic repair. Black (odds ratio, 0.73, P = .003) and Hispanic (odds ratio, 0.72, P = .006) patients and patients with greater American Society of Anesthesiologists classification (odds ratio, 0.86, P = .037), ascites (odds ratio, 0.39, P = .039), and preoperative dialysis requirement (odds ratio, 0.45, P = .017) were less likely to undergo laparoscopic repair. Aside from a decreased likelihood of readmission in patients who underwent laparoscopic surgery (odds ratio, 0.696, P = .024), there was no difference in other postoperative outcomes, despite a laparoscopic approach being associated with greater rates of concomitant procedures compared with an open approach (24% vs 18%, P < .001).

CONCLUSIONS

Female sex, younger age, and lower American Society of Anesthesiologists class were associated with a greater likelihood of laparoscopic surgery. Black and Hispanic patients and patients with ascites and dialysis requirements were less likely to undergo laparoscopic repair. Laparoscopic inguinal hernia repair can be safely performed in an emergent setting.

Association of computed tomography-derived body composition and complications after colorectal cancer surgery: A systematic review and meta-analysis

The prediction of the risk of developing complications after colorectal surgery for colorectal carcinoma remains imprecise. Body composition measurements on a computed tomography (CT) scan can potentially contribute to a better preoperative risk assessment. The aim of this systematic review is to evaluate the evidence for the use of body composition measurements on CT scans to predict short-term complications after colorectal cancer surgery. A literature search (in PubMed, Embase and Web of Science) was performed up to 1 August 2022. Two researchers independently screened the articles, extracted data and assessed the quality of the studies using the Quality in Prognosis Studies tool. The primary outcome measure was the occurrence of complications within 30 days after surgery. Meta-analysis was conducted using a random-effects model to synthesize a pooled odds ratio (OR). The study protocol was registered in PROSPERO (CRD42021281010). Forty-five articles with a total of 16 537 patients were included. In total, 26 body composition measures were investigated: 8 muscle-related measures, 11 adipose tissue measures, 4 combined muscle and adipose tissue measures, and 3 other measures. These were investigated as potential predictors for more than 50 differently defined postoperative complications. Meta-analysis was only possible for two measurements and showed that higher amounts of visceral fat increase the risk of developing overall complications (OR: 2.52 [1.58-4.00], P < 0.0001) and anastomotic leakage (OR: 1.76 [1.17-2.65], P = 0.006). A wide variety of body composition measurements on preoperative CT scans have been investigated as a predictive factor for postoperative complications. Visceral fat appeared to be associated with overall complications and anastomotic leakage; however, the association is weak, and its clinical relevance or applicability is questionable. The current evidence is limited by methodological heterogeneity and the risk of bias. To improve comparability of results across studies and improve decision-making, future studies should use standardized methods for measuring body composition on CT scans, outcome definitions and statistical analyses.

Application of machine learning algorithms to predict postoperative surgical site infections and surgical site occurrences following inguinal hernia surgery

PURPOSE

This study aimed to develop, validate, and evaluate machine learning (ML) algorithms for predicting Surgical site infections (SSI) and surgical site occurrences (SSO) after elective open inguinal hernia surgery.

METHODS

A cohort of 491 patients who underwent elective open inguinal hernia surgery at Fudan University Affiliated Huadong Hospital between December 2019 and December 2020 was enrolled. To create a strong prediction model, we employed five ML methods: generalized linear model, random forest (RF), support vector machines, neural network, and gradient boosting machine. Based on the best performing model, we devised online calculators to facilitate clinicians' access to a linear predictor for patients. The receiver operating characteristic curve was utilized to evaluate the model's discriminatory capability and predictive accuracy.

RESULTS

The incidence rates of SSI and SSO were 4.68% and 13.44%, respectively. Four variables (diabetes, recurrence, antibiotic prophylaxis, and duration of surgery) were identified for SSI prediction, while four variables (diabetes, size of hernias, albumin levels, and antibiotic prophylaxis) were included for SSO prediction. In the test set, the RF model showed the best predictive ability (SSI: area under the curve (AUC) = 0.849, sensitivity = 0.769, specificity = 0.769, and accuracy = 0.769; SSO: AUC = 0.740, sensitivity = 0.513, specificity = 0.821, and accuracy = 0.667). Online calculators have been developed to assess patients' risk of SSI ( https://wuqian17.shinyapps.io/predictionSSI/ ) and SSO ( https://wuqian17.shinyapps.io/predictionSSO/ ) after surgery.

CONCLUSIONS

This study developed a prediction model for SSI/SSO using ML methods. It holds the potential to facilitate the selection of appropriate treatment options following elective open inguinal hernia surgery.

Early prediction of acute gallstone pancreatitis severity: a novel machine learning model based on CT features and open access online prediction platform

BACKGROUND

Early diagnosis of acute gallstone pancreatitis severity (GSP) is challenging in clinical practice. We aimed to investigate the efficacy of CT features and radiomics for the early prediction of acute GSP severity.

METHODS

We retrospectively recruited GSP patients who underwent CT imaging within 48 h of admission from tertiary referral centre. Radiomics and CT features were extracted from CT scans. The clinical and CT features were selected by the random forest algorithm to develop the ML GSP model for the identification of severity of GSP (mild or severe), and its predictive efficacy was compared with radiomics model. The predictive performance was assessed by the area under operating characteristic curve. Calibration curve and decision curve analysis were performed to demonstrate the classification performance and clinical efficacy. Furthermore, we built a web-based open access GSP severity calculator. The study was registered with ClinicalTrials.gov (NCT05498961).

RESULTS

A total of 301 patients were enrolled. They were randomly assigned into the training (n = 210) and validation (n = 91) cohorts at a ratio of 7:3. The random forest algorithm identified the level of calcium ions, WBC count, urea level, combined cholecystitis, gallbladder wall thickening, gallstones, and hydrothorax as the seven predictive factors for severity of GSP. In the validation cohort, the areas under the curve for the radiomics model and ML GSP model were 0.841 (0.757-0.926) and 0.914 (0.851-0.978), respectively. The calibration plot shows that the ML GSP model has good consistency between the prediction probability and the observation probability. Decision curve analysis showed that the ML GSP model had high clinical utility.

CONCLUSIONS

We built the ML GSP model based on clinical and CT image features and distributed it as a free web-based calculator. Our results indicated that the ML GSP model is useful for predicting the severity of GSP.

[Outpatient treatment for hernia surgery in Germany]

Outpatient surgery in the treatment of hernia is currently a major challenge for patients and treating physicians in Germany due to the new legal regulations (key term hybrid diagnosis-related groups, DRG). Despite large economic challenges and empty funds, the principle of medical treatment is still the patient-oriented scientifically founded medicine. Although outpatient treatment would be very desirable, clear medical knowledge should the basis for the justification of surgical strategies: outpatient short hospitalization (24h) or fully inpatient hospitalization (>24h). A completely outpatient treatment of hernias is not meaningful and the demarcation of outpatient, short inpatient and inpatient treatment should be demonstrated in a risk-adjusted manner. A classification is essential, particularly against the background of an intersectoral hybrid DRG.

Improving Diagnosis of Acute Cholecystitis with US: New Paradigms

Acute cholecystitis is an inflammatory condition of the gallbladder typically incited by mechanical obstruction. Accurate diagnosis of this common clinical condition is challenging due to variable imaging appearances as well as overlapping clinical manifestations with biliary colic, acute hepatitis, pancreatitis, and cholangiopathies. In acute cholecystitis, increased dilatation and high intraluminal pressures lead to gallbladder inflammation and may progress to gangrenous changes, focal wall necrosis, and subsequent perforation. In acute calculous cholecystitis, gallstones are the cause of obstruction and are often impacted in the gallbladder neck or cystic duct, leading to gallbladder inflammation. In acalculous cholecystitis, patients are typically critically ill, often with hypotensive episodes and prolonged gallbladder stasis, which lead to obstruction, gallbladder ischemia, and inflammation. Helpful sonographic findings of acute cholecystitis include a dilated gallbladder; increased intraluminal pressures in the gallbladder, resulting in a bulging fundus (tensile fundus sign); intraluminal sludge in the setting of right upper quadrant pain; wall hyperemia, which may be quantified by elevated cystic artery velocities or hepatic artery velocities; mucosal ischemic changes, characterized by loss of mucosal echogenicity; pericholecystic inflammation, characterized by hyperechoic pericholecystic fat; and mucosal discontinuity. Extruded complex fluid next to a wall defect is definitive for gallbladder wall perforation, and further evaluation with CT or MRI allows evaluation of the full extent of perforation and other potential complications. The sonographic Murphy sign, while helpful if positive, is relatively insensitive for accurate diagnosis of acute cholecystitis. Thus, overreliance on the sonographic Murphy sign results in surprisingly low diagnostic accuracy in practice.

Preoperative Waiting Time Affects the Length of Stay of Patients Treated via Laparoscopic Cholecystectomy in an Acute Care Surgical Setting

Background/Objectives: Acute cholecystitis (AC) presents a significant burden in emergency surgical settings. Early laparoscopic cholecystectomy (ELC) is the standard of care for AC, yet its implementation varies. This study aims to assess the impact of preoperative waiting time (WT) on postoperative length of stay (LOS) in patients undergoing urgent cholecystectomy. Methods: From June 2021 to September 2022, data on patients undergoing urgent cholecystectomy for AC or pancreatitis were collected from two university hospitals. Patients were categorized into early (ELC) or delayed (DLC) cholecystectomy groups based on WT. The primary outcome was the assessment of the variables influencing LOS via univariate and multivariate analyses. Results: This study included 170 patients, predominantly female, with a median age of 64.50 years. ELC was performed in 58.2% of cases, with a median WT of 0 days, while DLC was performed in 41.8%, with a median WT of 3 days. Postoperative complications occurred in 21.8% of cases, with LOS being significantly shorter in the ELC group (median 5 days vs. 9 days; p = 0.001). Multivariate analysis confirmed that WT (OR 8.08 (1.65-77.18; p = 0.033)) was the most important predictor of LOS. Conclusions: ELC is associated with a shorter LOS and with DLC, aligning with the WSES recommendations. Earlier surgery reduces the risk of complications and overall hospital costs. An extended WT contributes to a prolonged LOS, underscoring the importance of timely access to operating theaters for acute biliary pathologies.

Evaluating the 7-day barrier: early laparoscopic cholecystectomy for cholecystitis with prolonged symptom duration; a systematic review and meta-analysis

BACKGROUND

The gold standard for treating acute cholecystitis is an early laparoscopic cholecystectomy. However, whether this still applies for a > 7-day existing cholecystitis remains heavily debated. Therefore, this systematic review investigates the safety of early laparoscopic cholecystectomy for a > 7-day existing cholecystitis.

METHODS

PubMed and Embase were systematically searched for all studies comparing early laparoscopic cholecystectomy in patients with 0-7 versus > 7-day existing cholecystitis at time of surgery. Meta-analyses were performed on dichotomous and continuous outcomes with risk difference (RD) and mean difference (MD) as measures of effect.

RESULTS

A total of 3007 studies were screened, resulting in the inclusion of 13 non-randomised studies comprising 5481 patients. Of these, 4690 received cholecystectomy within 7 days, and 791 after 7 days. Operating times (MD -11.8 min; 95% CI [-18.4; -5.2]) and total hospital stay (MD -2.7 days; 95% CI [-4.0; -1.4]) were longer in the > 7-day group. However, no significant risk difference was found for combined major complications: bile duct injury/leakage and bowel injury (RD -1.0%; 95% CI [-2.3; 0.3]), for complications graded Clavien-Dindo ≥ 3 (RD -0.3%; 95% CI [-2.5; 1.9]), or for conversions (RD -1.5%; 95% CI [-3.9; 0.9]).

CONCLUSION

Early laparoscopic cholecystectomy for cholecystitis after the 7-day barrier might be harder, as reflected by longer operating times. However, a significant increase in complications or conversions was not found. Due to the risk of bias and lack of well-powered studies directly comparing early cholecystectomy after 7 days with alternative strategies, strong recommendations cannot be made. Meanwhile, it is advised to carefully weigh the treatment options in case of a > 7-day existing cholecystitis, based on patient's characteristics and surgeon's experience.

Evaluation of Mesh Closure of Laparotomy and Extraction Incisions in Open and Laparoscopic Colorectal Surgery: A Systematic Review and Meta-Analysis

Background and Objectives: Evisceration and incisional hernia (IH) represent a significant morbidity following open or laparoscopic colorectal surgery where midline laparotomy or extraction incision (EI) are performed. We executed a systematic review to evaluate primary mesh closure of laparotomy or EI in colorectal resections of benign or malignant conditions. Methods: A comprehensive literature search was performed using PubMed, Science Direct, Cochrane, and Google Scholar databases for studies comparing prophylactic mesh to traditional suture techniques in closing laparotomy in open approach or EI when minimally invasive surgery was adopted in colorectal procedures, regardless of the diagnosis. Both IH and evisceration were identified as primary outcomes. Secondary outcomes included surgical site infections (SSI), postoperative seroma, and length of hospital stay (LOS). Results: Six studies were included in our analysis with a total population of 1398 patients, of whom 411 patients had prophylactic mesh augmentation when closing laparotomy or EI, and 987 underwent suture closure. The mesh closure group had a significantly lower risk of developing IH compared to the conventional closure group (OR 0.23, p = 0.00001). This result was significantly consistent in subgroup analysis of open laparotomy or EI of laparoscopic surgery subgroups. There was no statistically notable difference in evisceration incidence (OR 0.51, p = 0.25). Secondary endpoints did not significantly differ between both groups in terms of SSI (OR 1.20, p = 0.54), postoperative seroma (OR 1.80, p = 0.13), and LOS (MD -0.54, p = 0.63). Conclusions: primary mesh reinforcement of laparotomy or EI closure in colorectal resections lessens IH occurrence. No safety concerns were identified; however, further high-quality research may provide more solid conclusions.

Swedish female and male general surgeons differ in personality traits

BACKGROUND AND AIMS

Evidence suggests that female surgeons achieve comparable or even more favorable outcomes than male surgeons. It is currently unclear what factors contribute to these potential differences. Possible explanations might be differences in personality traits, communication style, attitude, and risk-taking behavior. This cross-sectional study aimed to examine disparities in personality traits between male and female general surgeons in Sweden.

METHODS

The research was conducted as a cross-sectional study of personality traits. Between August 29, 2022, and December 15, 2023, Swedish specialists in general surgery were invited to participate in an online survey. The survey, assessed with the Big Five Inventory, collected information on self-reported surgeon gender, years in practice, employment data, and differences in personality traits.

RESULTS

The analysis encompassed responses from 223 Swedish general surgeons: 121 (54%) males and 102 (46%) females. In contrast to female surgeons, male surgeons were older and had longer surgical experience. A higher proportion of male surgeons were employed in rural hospitals. Higher mean scores were observed in all personality traits among female surgeons. The adjusted analysis showed significantly higher scores for conscientiousness (p < 0.001), extraversion (p < 0.001), agreeableness (p = 0.006), and neuroticism (p < 0.001); however, no such change was observed for openness.

CONCLUSION

This cross-sectional study demonstrates that Swedish female and male surgeons differ in personality traits. The implications of these results could lead to a deeper understanding of the variations in surgical outcomes based on the gender of the surgeon.

Causes of chronic pain unrelated to surgical trauma after groin hernia repair: a prospective cohort study

BACKGROUND

Chronic inguinal pain (CIP) can be caused by musculoskeletal or neurological pathologies and by surgical trauma after inguinal hernia repair among other. The aim of this prospective cohort observational study was to find the incidence and causes of CIP unrelated to surgical trauma 12 months after inguinal hernia repair.

METHODS

During sixteen months patients consulting a hernia center for groin-related symptoms were included in the study. Patients were evaluated by surgeons and filled out preoperatively the Inguinal Pain Questionnaires and a Numerical Rating Scale pain-questionnaire. For patients undergoing inguinal hernia repair, postoperative questionnaires similar to the pre-operative ones were sent out at 12 months. Patients scoring pain on pain questionnaires were evaluated by phone and physical examination.

RESULTS

289 patients (78.1%) of 370 repaired patients filled in the postoperative questionnaires. 62 (21.4%) patients scored pain, of these patients 5 (1.7%, 5/289) answered incorrectly in the pain questionnaires and 14 (4.8%, 14/289) had non-surgical trauma causes of pain: 5 musculoskeletal, 4 neurological and 3 other medical pathologies.

CONCLUSIONS

This cohort study found CIP unrelated to surgical trauma in 4.8% of patients undergoing a groin hernia repair. Most causes of pain unrelated to surgical trauma were musculoskeletal and neurological pathologies. Nearly a third of patients scoring inguinal pain on pain-questionnaires did not have chronic post-surgical pain (CPSP), therefore incidence of CPSP should not be based solely on pain questionnaires. Clinical assessment of patients with pain is necessary to excluded CIP unrelated to the surgical trauma.

Plain Computed Tomography for Differentiating Neoplastic and Non-neoplastic Pedunculated Gallbladder Polyps

Objective Surgery is recommended for large pedunculated gallbladder polyps (PGPs), which measure 10 mm or more in size, because they tend to be neoplastic polyps (NPs), such as adenomas and adenocarcinomas. However, after resection, they are often found to be non-neoplastic polyps (non-NPs). This study aimed to evaluate the usefulness of plain computed tomography (CT) in distinguishing NPs from non-NPs. Methods Of the 80 patients who underwent cholecystectomy for PGPs ≥10 mm between January 2008 and February 2021, 46 who underwent plain and contrast-enhanced CT (CE-CT) before resection were included in this study. We retrospectively assessed the polyp detection rate (PDR) using CT and calculated the difference in the CT values between PGPs and the surrounding bile. Results Twenty-one patients had NPs (12 adenomas, 5 carcinomas in adenoma, and 4 adenocarcinomas). The others were non-NPs (24 cholesterol polyps and one hyperplastic polyp). The PDR using plain CT was significantly higher in the NP group than in the non-NP group (38% (8/21) vs. 0% (0/25), p <0.01). The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of NPs were 38%, 100%, 100%, 66%, and 72%, respectively. The difference in the CT values between PGPs and the surrounding bile was significantly larger in the NP group than in the non-NP group (14.12 ± 11.38 HU, 5.04 ± 6.15 HU, p <0.01). Conclusions PGPs detected using plain CT had a high probability of being NPs. Plain CT is therefore considered to be useful for differentiating NPs from non-NPs.

Ultrasonic dissection versus electrocautery dissection in laparoscopic cholecystectomy for acute cholecystitis: a randomized controlled trial (SONOCHOL-trial)

BACKGROUND

Laparoscopic cholecystectomy with ultrasonic dissection presents a compelling alternative to conventional electrocautery. The evidence for elective cholecystectomy supports the adoption of ultrasonic dissection, citing advantages such as reduced operating time, diminished bleeding, shorter hospital stays and decreased postoperative pain and nausea. However, the efficacy of this procedure in emergency surgery and patients diagnosed with acute cholecystitis remains uncertain. The aim of this study was to compare outcomes of electrocautery and ultrasonic dissection in patients with acute cholecystitis.

METHODS

A randomized, parallel, double-blinded, multicentre controlled trial was conducted across eight Swedish hospitals. Eligible participants were individuals aged ≥ 18 years with acute cholecystitis lasting ≤ 7 days. Laparoscopic cholecystectomy was performed in the emergency setting as soon as local circumstances permitted. Random allocation to electrocautery or ultrasonic dissection was performed in a 1:1 ratio. The primary endpoint was the total complication rate, analysed using an intention-to-treat approach. The primary outcome was analysed using logistic generalized estimated equations. Patients, postoperative caregivers, and follow-up personnel were blinded to group assignment.

RESULTS

From September 2019 to March 2023, 300 patients were enrolled and randomly assigned to electrocautery dissection (n = 148) and ultrasonic dissection (n = 152). No significant difference in complication rate was observed between the groups (risk difference [RD] 1.6%, 95% confidence interval [CI], - 7.2% to 10.4%, P = 0.720). No significant disparities in operating time, conversion rate, hospital stay or readmission rates between the groups were noted. Haemostatic agents were more frequently used in electrocautery dissection (RD 10.6%, 95% CI, 1.3% to 19.8%, P = 0.025).

CONCLUSIONS

Ultrasonic dissection and electrocautery dissection demonstrate comparable risks for complications in emergency surgery for patients with acute cholecystitis. Ultrasonic dissection is a viable alternative to electrocautery dissection or can be used as a complementary method in laparoscopic cholecystectomy for acute cholecystitis.

TRIAL REGISTRATION

The trial was registered prior to conducting the research on http://clinical.

TRIALS

gov , NCT03014817.

Building resilient surgical systems that can withstand external shocks

When surgical systems fail, there is the major collateral impact on patients, society and economies. While short-term impact on patient outcomes during periods of high system stress is easy to measure, the long-term repercussions of global crises are harder to quantify and require modelling studies with inherent uncertainty. When external stressors such as high-threat infectious disease, forced migration or climate-change-related events occur, there is a resulting surge in healthcare demand. This, directly and indirectly, affects perioperative pathways, increasing pressure on emergency, critical and operative care areas. While different stressors have different effects on healthcare systems, they share the common feature of exposing the weakest areas, at which point care pathways breakdown. Surgery has been identified as a highly vulnerable area for early failure. Despite efforts by the WHO to improve preparedness in the wake of the SARS-CoV-2 pandemic, measurement of healthcare investment and surgical preparedness metrics suggests that surgical care is not yet being prioritised by policy-makers. Investment in the 'response' phase of health system recovery without investment in the 'readiness' phase will not mitigate long-term health effects for patients as new stressors arise. This analysis aims to explore how surgical preparedness can be measured, identify emerging threats and explore their potential impact on surgical services. Finally, it aims to highlight the role of high-quality research in developing resilient surgical systems.

Health systems strengthening through surgical and perioperative care pathways: a changing paradigm

Global health has traditionally focused on the primary health development with disease-specific focus such as HIV, malaria and non-communicable diseases (NCDs). As such, surgery has traditionally been neglected in global health as investment in them is often expensive, relative to these other priorities. Therefore, efforts to improve surgical care have remained on the periphery of initiatives in health system strengthening. However, today, many would argue that global health should focus on universal health coverage with primary health and surgery and perioperative care integrated as a part of this. In this article, we discuss the past developments and future-looking solutions on how surgery can contribute to the delivery of effective and equitable healthcare across the world. These include bidirectional integration of surgical and chronic disease pathways and better understanding financing initiatives. Specifically, we focus on access to safe elective and emergency surgery for NCDs and an integrated approach towards the rising multimorbidity from chronic disease in the population. Underpinning these, data-driven solutions from high-quality research from clinical trials and cohort studies through established surgical research networks are needed. Although challenges will remain around financing, we propose that development of surgical services will strengthen and improve performance of whole health systems and contribute to improvement in population health across the world.

Surgical Challenges During the COVID-19 Crisis: A Comparative Study of Inguinal Hernia Treatment in Romania

Background and Objectives: The COVID-19 pandemic disrupted healthcare systems worldwide, leading to the postponement of elective surgeries, including inguinal hernia repair (IHR), as healthcare resources prioritized critical care. This study aims to evaluate the impact of the pandemic on the incidence and outcomes of IHR procedures. Materials and Methods: A retrospective review was conducted on 604 patients who underwent IHR over six years, spanning pre-pandemic, pandemic, and post-pandemic periods. Data on patient demographics, type of surgical procedure (elective or emergency), use of mesh, surgical duration, hospitalization period, and postoperative outcomes were analyzed across the three time frames. Results: Patient age remained consistent across the three periods, but a significant increase in female patients was observed during and after the pandemic (p < 0.001). Elective IHR surgeries significantly decreased during the pandemic (p < 0.001), paralleled by an increase in emergency cases (p = 0.004). In the post-pandemic period, elective surgeries rebounded, while emergency interventions declined (21.9% vs. 10.3%). Mesh repair usage increased notably in the post-pandemic phase (p < 0.001). Although surgeries took longer during the pandemic (p < 0.001), both total and postoperative hospital stays were reduced during and after the pandemic (p < 0.001). Minimal postoperative complications were reported throughout, with only one mortality during the pandemic. Conclusions: This study highlights the need for robust healthcare strategies to maintain elective surgical care during global crises, as delays in IHR may elevate risks for complications like hernia incarceration and strangulation.

Helicobacter pylori Eradication Therapy and the Risk of Colorectal Cancer: A Population-Based Nationwide Cohort Study in Sweden

BACKGROUND

Helicobacter pylori (H. pylori) is an established gastric carcinogen, also associated with an increased risk of colorectal cancer. Therefore, we suspected that H. pylori eradication lowers the risk of colorectal cancer.

MATERIAL AND METHODS

We assessed if H. pylori eradication therapy is associated with a reduced risk of colorectal adenocarcinoma in a population-based nationwide cohort study. This study included all Swedish adults with at least one recorded H. pylori eradication episode between July 2005 and December 2012, based on the high-quality Swedish health registries. Colorectal adenocarcinoma risks were compared to the Swedish background population, presented as standardized incidence ratios (SIRs) and 95% confidence intervals (CIs), accounting for age, sex, calendar period, tumor location (left or right sided), stage, and number of eradication episodes, from 1 year after eradication and onward.

RESULTS

Among 80,381 individuals receiving H. pylori eradication therapy (average follow-up 4.1 years), 282 were diagnosed with colorectal cancer (97.2% adenocarcinoma). Overall, H. pylori eradication was associated with an elevated risk of colorectal adenocarcinoma (SIR 1.27, 95% CI: 1.12-1.43). The colorectal adenocarcinoma risk was increased 1-2 years after eradication (SIR 1.42, 95% CI: 1.17-1.72), then decreased 2-4 years (SIR 0.80, 95% CI: 0.65-0.98) and 4-6 years (SIR 0.76, 95% CI: 0.57-0.99), yet not ≥ 6 years (SIR 1.36, 95% CI: 0.78-2.21) after eradication compared to the general population. Overall, right-sided (SIR 1.47, 95% CI: 1.21-1.76) and left-sided (SIR 1.35, 95% CI: 1.09-1.67) colon adenocarcinomas risks were higher among eradicated individuals than the general population.

CONCLUSION

H. pylori eradication was not associated with a clear and consistent reduction of colorectal cancer in our Swedish cohort.

The influence of the interventionalist's sex on the outcome and complications of transbronchial lung cryobiopsy

BACKGROUND

To date there are no data on sex aspects evaluating outcomes of interventional pneumology (IP). Our aim was to investigate sex differences in transbronchial lung cryobiopsy (TBLC) outcomes in the diagnosis of interstitial lung disease (ILD).

METHODS

All consecutive (TBLC)s performed for ILD evaluation between Nov 17 and Dec 21 at a tertiary referral center for ILDs and IP were analyzed. The indication for the procedure was determined by a multidisciplinary discussion (MDD). Final results including bronchoalveolar lavage (BAL) and histology were discussed in a 2nd MDD and outcomes and procedure related complications were assessed.

RESULTS

TBLC was performed in 406 patients (38.4 % female/67.8 years/FVC 76.8 %). Among 32 interventionalists, 16 females performed 53 % of interventions. Females had longer procedure times (29.9 vs. 26.6 min, p = 0.046), used fluoroscopy more often (76.7 vs. 50.3 %, p < 0.001) and obtained more samples (3.6 vs. 3.2, p = 0.021) than their male counterparts. No difference was found for major bleeding or pneumothorax. MDD was able to conclude on a diagnosis in 88.4 % of interventions performed by women and in 78.5 % performed by men (p = 0.010). In a multivariate analysis, female gender (OR 1.93) and lower FVC% values (OR 0.98) were significantly associated with diagnostic yield, whereas the number of biopsies, professional experience, use of fluoroscopy or antiplatelet drugs were not relevant.

CONCLUSION

The results of this study strengthen the role of women in endoscopy and may help to motivate women to pursue a career in IP.

Routine single-incision laparoscopic common bile duct exploration with concomitant cholecystectomy for elderly patients: a 6-year retrospective comparative study

BACKGROUND

While single-incision laparoscopic cholecystectomy (SILC) has gained more popularity in recent years, its application to elderly patients needs further evaluation. Few SILC studies regarded this rapidly growing vulnerable population, and single-incision laparoscopic common bile duct exploration (SILCBDE) was never mentioned. We conducted an observational study of 146 routine SILCBDE to address this issue.

METHODS

One hundred forty-six consecutive patients underwent SILCBDE with concomitant cholecystectomies during a period of 6 years (July 2012-June 2016 and July 2018-July 2020). Forty patients with an age of 65 years or older were the study target. Characteristics and operative outcomes were compared with the remaining 106 younger patients by retrospective chart review. The primary outcomes include complications and mortality, while the secondary outcomes contain intraoperative blood loss, operative time, procedural conversions, postoperative length of hospital stay, and bile duct stone recurrence.

RESULTS

There was no mortality. The bile duct stone clearance rate was 98.6%. The elderly group had higher American Society of Anesthesiologists (ASA) scores, higher comorbidity rate, higher acute cholangitis rate, lower completion intraoperative cholangiography (IOC) rate, longer operative time, more blood loss, longer postoperative hospital stay (p < .001), longer total hospital stay (p < .001), higher procedural conversion rate (p < .05), higher complication rate (p < .001), and the exclusive open conversion (2.5%). The difference in complications derived from Clavien-Dindo grade I.

CONCLUSION

Routine SILCBDE with concomitant cholecystectomy by experienced surgeons is safe and efficacious for elderly patients as for younger patients. Randomized controlled trials are anticipated.

Fluid biomarkers of chronic traumatic brain injury

Traumatic brain injury (TBI) is a leading cause of long-term disability across the world. Evidence for the usefulness of imaging and fluid biomarkers to predict outcomes and screen for the need to monitor complications in the acute stage is steadily increasing. Still, many people experience symptoms such as fatigue and cognitive and motor dysfunction in the chronic phase of TBI, where objective assessments for brain injury are lacking. Consensus criteria for traumatic encephalopathy syndrome, a clinical syndrome possibly associated with the neurodegenerative disease chronic traumatic encephalopathy, which is commonly associated with sports concussion, have been defined only recently. However, these criteria do not fit all individuals living with chronic consequences of TBI. The pathophysiology of chronic TBI shares many similarities with other neurodegenerative and neuroinflammatory conditions, such as Alzheimer disease. As with Alzheimer disease, advancements in fluid biomarkers represent one of the most promising paths for unravelling the chain of pathophysiological events to enable discrimination between these conditions and, with time, provide prediction modelling and therapeutic end points. This Review summarizes fluid biomarker findings in the chronic phase of TBI (≥6 months after injury) that demonstrate the involvement of inflammation, glial biology and neurodegeneration in the long-term complications of TBI. We explore how the biomarkers associate with outcome and imaging findings and aim to establish mechanistic differences in biomarker patterns between types of chronic TBI and other neurodegenerative conditions. Finally, current limitations and areas of priority for future fluid biomarker research are highlighted.

Perirenal Adipose Tissue: Clinical Implication and Therapeutic Interventions

Perirenal adipose tissue (PRAT) has been identified as an important factor in local and general homeostasis of the human body and is especially important in regulating renal and cardiovascular functions. It has also been identified as a crucial risk factor to consider in cardiovascular and renal disorders, malignancies, and various other diseases. Having a concrete idea of the effects of therapeutic interventions on the size and metabolism of the PRAT could prove highly beneficial. This review summarizes what is known about the PRAT and provides a collection of studies on the effects of therapeutic interventions on PRAT and its related diseases. We used papers written on a variety of subjects, mainly concerning adipose tissue and the effects of therapeutic procedures on it. Our main challenge was to excerpt the information specifically related to the PRAT in these papers. These effects vary greatly, from an increase or decrease in mass or size of the PRAT to changes in metabolism and drug residue accumulation. The current studies often fail to consider PRAT as an individual subject of research and only examine the adipose tissue of the entire body as a whole. This leads us to believe this field could benefit greatly from further research.

European Quality Markers in Oral and Maxillofacial Surgery Specialty Training: Defining Standards

According to the European Union (EU) Directive 2005/36, the medical specialty of oral and maxillofacial surgery (OMFS) exists with two possible formats: dual degree OMFS called Dental, Oral and Maxillofacial Surgery (DOMFS) - basic medical and basic dental training and single medical degree Maxillofacial Surgery (MFS). Within the EU and across all of Europe, differences in the nature and quality of OMFS training coexist. By implementing the highest possible standards of training, patient care can be improved. To establish quality metrics for an ideal OMFS training programme, the European OMFS Trainee Forum of the Union Européenne des Médecins Spécialistes (UEMS) conducted a Delphi consensus protocol from November 2023 to January 2024. Facilitated by the OMFS Section of UEMS, 57 trainees from 32 countries participated. The process involved the definition of three quality levels using the red, amber, and green (RAG) rating system. Following the Delphi process, 46 domains were identified, including features within training programmes/rotations, teaching and education programmes, training placements, recording of training progression and activity, and external assessment of training programmes. The results were aligned with the UEMS OMFS European Training Requirement (ETR). With the introduction of a RAG rating, trainees and trainers can review their training programmes with the aim of improving them by moving domains from Red to Green. Raising the standard of training will benefit our patients. This initiative could mark a significant step towards the harmonisation of OMFS training, improving quality and ensuring consistent, high-level care throughout Europe.

Women in the Operating Room: The Role of Mentorship in Challenging the Gendered Norms of Surgical Practices

Historically, surgery has been considered an inherently "masculine" profession. This persistent stereotype has led to gender inequality in currently practicing surgeons, despite gender parity of newly admitted medical students in North America. Since women began practising medicine in the 19th century, these norms began to be challenged in tandem with the suffragette movement. In the United States, United Kingdom and Canada, pioneering female physicians and surgeons worked together to establish spaces where women would be welcomed and mentored the next generation of female surgeons. In this essay, I highlight prominent women physicians and surgeons that have contributed to the presence of women in the operating room through mentorship.

Impact of patient's sex on groin hernia repair: A systematic review and meta-analysis

BACKGROUND

Groin hernia repair (GHR) is a performed procedure worldwide, with approximately 20 million surgeries carried out each year. Despite being less common in females, there is a lack of research on how sex influences the outcomes of GHR. This systematic review and meta-analysis aim to assess how patient sex impacts results in GHR.

METHODS

We performed a systematic review and meta-analysis according to Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines. We searched for studies up to October 2023 in MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials. The studies included focused on sex outcomes for both robotic and open GHR procedures. Data extraction and quality assessment were conducted using the Risk of Bias in Non-Randomized Studies - Of Interventions tool. Our statistical analysis was performed using the metafor package in RStudio.

RESULTS

After screening a total of 3917 articles, we identified 29 studies that met our criteria, comprising a total of 1,236,694 patients. Among them, 98,641 (7.98%) patients were females. Our findings showed that females had higher rates of hernia recurrence (RR 1.28), chronic pain (RR 1.52), and surgical site infections (SSIs) (RR 1.46) compared to males. Females showed a lower tendency to undergo minimally invasive surgery (MIS) with a relative risk of 0.82 (95% CI 0.69-0.97; p = 0.02).

CONCLUSION

Females tend to face higher rates of complications after GHR such as an elevated risk of chronic pain, recurrence, and surgical site infections (SSI). Moreover, they undergo fewer MIS options compared to males. These results underscore the importance of research to enhance outcomes for women undergoing GHR.

Clinical update on acute cholecystitis and biliary pancreatitis: between certainties and grey areas

Acute calculous cholecystitis (ACC) and acute biliary pancreatitis (ABP) are significant complications of gallstone disease. This review aims to provide a comprehensive analysis of current management practices for ACC and ABP. The Tokyo Guidelines (TG) and World Society of Emergency Surgery (WSES) guidelines recommend early laparoscopic cholecystectomy (ELC) as the treatment of choice for ACC. High-risk patients may benefit from alternative treatments like biliary drainage, with emerging techniques such as endoscopic drainage showing promise. ABP requires prompt diagnosis and intervention. The Revised Atlanta Classification (RAC) criteria are used for diagnosis, with endoscopic retrograde cholangiopancreatography (ERCP) and cholecystectomy as primary treatments. Minimally invasive approaches are preferred for managing complications like infected pancreatic necrosis, with the endoscopic step-up method showing superior outcomes. The management of ACC and ABP continues to evolve. Future research is needed to refine guidelines further and address existing controversies, ultimately improving patient outcomes in these acute biliary conditions.

Laparoscopic Intraperitoneal Onlay Mesh Plus (IPOM Plus) With Mobilizing the Urinary Bladder for Suprapubic Incisional Hernia Repair: A Case Report

Ventral hernias represent a prevalent surgical complication in contemporary medical practice, with incisional hernias being a common long-term outcome following abdominal surgery. There are many risk factors for abdominal incisional hernias, including surgical history, malnutrition, obesity, chronic obstructive pulmonary disease, abdominal closure technique, and surgical site infection. Laparoscopic repair of incisional hernias is the optimal surgical approach, as it is associated with reduced hospital stays, fewer perioperative complications, and lower recurrence rates. This report details a case of suprapubic incisional hernia managed via laparoscopic surgery utilizing adual mesh placed intraperitoneally. The bladder is displaced from the rectus abdominis muscle to form a compartment for the placement of the mesh, which is then anchored to the pubic bone, after which the bladder is sutured back into position. Laparoscopic intraperitoneal onlay mesh plus (IPOM plus) surgery is a feasible alternative to open ventral hernia repair for defects smaller than 10 cm. There is less chance of seroma formation and recurrence with transfascial sutures, which makes them an easy method for defect closure. Using a mesh improves muscle function and reduces the likelihood of hernia recurrence. Recurrence rates are lower and mechanical stability is better with mesh utilization compared to initial suture repair. For us, getting the abdominal wall to approximation and inserting the mesh comfortably require mobilizing the urine bladder.

Mechanisms and causes of death after abdominal surgery in low-income and middle-income countries: a secondary analysis of the FALCON trial

BACKGROUND

Death after surgery is devasting for patients, families, and communities, but remains common in low-income and middle-income countries (LMICs). We aimed to use high-quality data from an existing global randomised trial to describe the causes and mechanisms of postoperative mortality in LMICs. To do so, we developed a novel framework, learning from both existing classification systems and emerging insights during data analysis.

METHODS

This study was a preplanned secondary analysis of the FALCON trial in 54 hospitals across seven LMICs (Benin, Ghana, India, Mexico, Nigeria, Rwanda, and South Africa). FALCON was a pragmatic, 2 × 2 factorial, randomised controlled trial that compared the effectiveness of two types of interventions for skin preparation (10% aqueous povidone-iodine vs 2% alcoholic chlorhexidine) and sutures (triclosan-coated vs uncoated). Patients who did not have surgery or were lost to follow-up were excluded (n=231). The primary outcomes of the present analysis were the mechanism and cause of death within 30-days of surgery, determined using a modified verbal autopsy strategy from serious adverse event reports. Factors associated with mortality were explored in a mixed-effects Cox proportional hazards model. The FALCON trial is registered with ClinicalTrials.gov, NCT03700749.

FINDINGS

This preplanned secondary analysis of the FALCON trial included 5558 patients who underwent abdominal surgery, of whom 4248 (76·4%) patients underwent surgery in tertiary, referral centres and 1310 (23·6%) underwent surgery in primary referral (ie, district or rural) hospitals. 3704 (66·7%) of 5558 surgeries were emergent. 306 (5·5%) of 5558 patients died within 30 days of surgery. 226 (74%) of 306 deaths were due to circulatory system failure, which included 173 (57%) deaths from sepsis and 29 (9%) deaths from hypovolaemic shock including bleeding. 47 (15%) deaths were due to respiratory failure. 60 (20%) of 306 patients died without a clear cause of death: 45 (15%) patients died with sepsis of unknown origin and 15 (5%) patients died of an unknown cause. 46 (15%) of 306 patients died within 24 h, 111 (36%) between 24 h and 72 h, 57 (19%) between >72 h and 168 h, and 92 (30%) more than 1 week after surgery. 248 (81%) of 306 patients died in hospital and 58 (19%) patients died out of hospital. The adjusted Cox regression model identified age (hazard ratio 1·01, 95% CI 1·01-1·02; p<0·0001), ASA grade III-V (4·93, 3·45-7·03; p<0·0001), presence of diabetes (1·47, 1·04-2·41; p=0·033), being an ex-smoker (1·59, 1·10-2·30; p=0·013), emergency surgery (2·08, 1·45-2·98; p<0·0001), cancer (1·98, 1·42-2·76; p<0·0001), and major surgery (3·94, 2·30-6·75; p<0·0001) as risk factors for postoperative mortality INTERPRETATION: Circulatory failure leads to most deaths after abdominal surgery, with sepsis accounting for almost two-thirds. Variability in timing of death highlights opportunities to intervene throughout the perioperative pathway, including after hospital discharge. A high proportion of patients without a clear cause of death reflects the need to improve capacity to rescue and cure by strengthening perioperative systems.

FUNDING

National Institute for Health and Care Research Global Health Research Unit.

Non-mesh inguinal hernia repair: Review

Hernioplasty stands as one of the most common abdominal surgical interventions. The "gold standard" treatment for inguinal hernias remains Lichtenstein mesh hernioplasty. Nonetheless, clinical practice continues to grapple with issues concerning complications such as recurrence, chronic postoperative pain, and infection. The myriad types of surgery lead to conflicting opinions regarding the superiority and drawbacks of inguinal canal plastic surgery methods. This article presents current data on the surgical treatment of non-mesh inguinal hernias, delineating the most prevalent techniques while exploring their respective advantages and disadvantages. Additionally, the researchers' experiences are analyzed in detail.