Incidence and risk factors for incisional hernia after temporary loop ileostomy closure: choosing candidates for prophylactic mesh placement

Risk factors associated to incisional hernia in stoma site after stoma closure: A systematic review and meta-analysis

BACKGROUND

This study aims to identify which risk factors are associated with the appearance of an incisional hernia in a stoma site after its closure. This in the sake of identifying which patients would benefit from a preventative intervention and thus start implementing a cost-effective protocol for prophylactic mesh placement in high-risk patients.

METHODS

A systematic review of PubMed, Cochrane library, and ScienceDirect was performed according to PRISMA guidelines. Studies reporting incidence, risk factors, and follow-up time for appearance of incisional hernia after stoma site closure were included. A fixed-effects and random effects models were used to calculate odds ratios' estimates and standardized mean values with their respective grouped 95% confidence interval. This to evaluate the association between possible risk factors and the appearance of incisional hernia after stoma site closure.

RESULTS

Seventeen studies totaling 2899 patients were included. Incidence proportion between included studies was of 16.76% (CI95% 12.82; 21.62). Out of the evaluated factors higher BMI (p = 0.0001), presence of parastomal hernia (p = 0.0023), colostomy (p = 0,001), and end stoma (p = 0.0405) were associated with the appearance of incisional hernia in stoma site after stoma closure, while malignant disease (p = 0.0084) and rectum anterior resection (p = 0.0011) were found to be protective factors.

CONCLUSIONS

Prophylactic mesh placement should be considered as an effective preventative intervention in high-risk patients (obese patients, patients with parastomal hernia, colostomy, and end stoma patients) with the goal of reducing incisional hernia rates in stoma site after closure while remaining cost-effective.

The utilization of an absorbable mesh after ostomy reversal does not decrease incisional hernia rates

BACKGROUND

Postoperative ostomy reversal hernias are common and can create strain on the healthcare system. There is little literature evaluating the utilization of absorbable mesh following ostomy reversal. The effect on subsequent hernia rates at our institution has not been evaluated. We examine if the addition of absorbable mesh decreases the postoperative hernia rate in our patient population.

METHODS

We performed a retrospective review of all ileostomy and colostomy reversals. Patients were divided into two groups based on whether an absorbable mesh was used at ostomy closure or not.

RESULTS

Hernia recurrence rates were lower in the group that had mesh reinforcement (8.96%) vs the group that did not receive a mesh (14.8%) though this was not statistically significant (p = 0.233).

CONCLUSION

Prophylactic use of an absorbable biosynthetic mesh did not alter the rate of incisional hernia rates following ostomy reversal in our cohort of patients.

Incidence and risk factors for parastomal hernia with a permanent colostomy

AIM

This study aims to explore the incidence and risk factors for permanent colostomy complicated with a parastomal hernia (PSH) after rectal cancer resection.

METHODS

This was a retrospective study of gastrointestinal surgery performed from January 2013 to December 2017 in patients with colorectal cancer treated at the Affiliated Hospital of Qingdao University. The relevant clinical variables of the patient were analyzed. Kaplan-Meier, univariate, and Cox multivariate analyses were used to evaluate the influencing factors and morbidity of PSH.

RESULTS

Among the 211 patients, 65 developed PSH. The cumulative incidence reached 33.5% at 62 months. In the multivariate Cox survival analysis, the results showed that being a woman, aged ≥65 years, having a body mass index (BMI) ≥ 25 kg/m² , diabetes, and Clavien-Dindo Grade III and IV complications were risk factors for the occurrence of PSH.

CONCLUSION

In our study, the incidence of PSH increased annually and reached a maximum of 33.5% after 62 months. Among the patient-related factors, female sex, age ≥65 years, BMI ≥ 25 kg/m² , diabetes, and postoperative Clavien-Dindo Grade III and IV complications were significantly associated with the development of PSH. Therefore, intervention measures to prevent patients with this risk factor are advisable.

Risk of incisional hernia after laparoscopic colorectal surgery: surgeon's worries and challenges

The incidence and risk factors of incisional hernia after laparoscopic surgery for colorectal disease have not yet been fully investigated. The surgeon should always consider several potential risk factors of incisional hernia when closing the abdominal wall in laparoscopic colorectal surgery.

An evidence map and synthesis review with meta-analysis on the risk of incisional hernia in colorectal surgery with standard closure

PURPOSE

To assess the incidence of incisional hernia (IH) across various type of incisions in colorectal surgery (CS) creating a map of evidence to define research trends, gaps and areas of future interest.

METHODS

Systematic review of PubMed and Scopus from 2010 onwards. Studies included both open (OS) and laparoscopic (LS). The primary outcome was incidence of IH 12 months after index procedure, secondary outcomes were the study features and their influence on reported proportion of IH. Random effects models were used to calculate pooled proportions. Meta-regression models were performed to explore heterogeneity.

RESULTS

Ninetyone studies were included reporting 6473 IH. The pooled proportions of IH for OS were 0.35 (95% CI 0.27-0.44) I² 0% in midline laparotomies and 0.02 (95% CI 0.00-0.07), I² 52% for off-midline. In case of LS the pooled proportion of IH for midline extraction sites were 0.10 (95% CI 0.07-0.16), I² 58% and 0.04 (95% CI 0.03-0.06), I² 86% in case of off-midline. In Port-site IH was 0.02 (95% CI 0.01-0.04), I² 82%, and for single incision surgery (SILS) of 0.06-95% CI 0.02-0.15, I² 81%. In case of stoma reversal sites was 0.20 (95% CI 0.16-0.24).

CONCLUSION

Midline laparotomies and stoma reversal sites are at high risk for IH and should be considered in research of preventive strategies of closure. After laparoscopic approach IH happens mainly by extraction sites incisions specially midline and also represent an important area of analysis.

Synthetic Mesh in Contaminated Abdominal Wall Surgery: Friend or Foe? A Literature Review

INTRODUCTION

The use of synthetic mesh in contaminated fields is controversial. In the last decade, published data have grown in this matter suggesting favorable outcomes. However, multiple variables and scenarios that influence the results still make difficult to obtain convincing recommendations.

METHODS

We performed a review of relevant available data in English regarding the use of synthetic meshes in contaminated abdominal wall surgery using the Medline database. Articles including patients undergoing ventral hernia in contaminated fields were included for analysis.

RESULTS

Most studies support the use of synthetic meshes for ventral hernia repair in contaminated fields, as they have shown lower recurrence rate and similar wound morbidity. Although no mesh seems ideal in this setting, most surgeons advocate for the use of reduced-in-weight polypropylene mesh. Sublay location of the prosthesis associated with complete fascial closure appears to offer better results in these patients. In addition, current evidence suggests that the use of prophylactic synthetic mesh when performing a stoma or for stoma reversal incisional hernias might be beneficial.

CONCLUSION

A better understanding of surgical site occurrences and its prevention, as well as the introduction of new reduced-in-weight meshes have allowed using synthetic meshes in a contaminated field. Although the use of mesh has indeed shown promising results in these patients, the surgical team should still balance pros and cons at the time of placing synthetics in contaminated fields.

When to use a prophylactic mesh after stoma closure: a case-control study

Purpose

The closure of a stoma is frequently associated with an acceptable morbidity and mortality. One of the most frequent complications is incisional hernia at the stoma site, which occurs in 20%–40% of cases, higher than incisions in other parts of the abdomen. The objective of this study was to identify the risk factors associated with the presentation of incisional hernia after stoma closure, this in order to select patients who are candidates for prophylactic mesh placement during closure.

Methods

An unpaired case–control study was conducted. This study involved 164 patients who underwent a stoma closure between January 2014 and December 2019. Associated factors for the development of incisional hernia at the site of the stoma after closure were identified, for which it was performed a logistic regression analysis.

Results

41 cases and 123 controls were analyzed, with a mean follow-up of 35.21 ± 18.42 months, the mean age for performing the stoma closure was 65.28 ± 14.07 years, the most frequent cause for performing the stoma was malignant disease (65.85%). Risk factor for the development of incisional hernia at the stoma site after its closure was identified as a history of parastomal hernia (OR 5.90, CI95% 1.97–17.68).

Conclusions

The use of prophylactic mesh at stoma closure should be considered in patients with a history of parastomal hernia since these patients present a significantly higher risk of developing a hernia.

Predictors of hernia after loop ileostomy closure: a single-center retrospective review

PURPOSE

Our aims were to determine the rate of incisional hernia after closure of a loop ileostomy (LI) and to identify any perioperative risk factors that may be associated with hernia development.

METHODS

We performed an IRB-approved retrospective review that included consecutive patients who underwent LI closure from January 1, 2012, to December 31, 2014. The primary outcome was identification of hernia on physical exam or by abdominal imaging. A stepwise logistic regression analysis was used to determine predictors of ileostomy site hernia.

RESULTS

A total of 243 consecutive patients had LI closure during the study timeframe. The overall rate of hernia formation was 11.9% (29/243). The median time to discovery of the hernia was 16.4 (range, 2.2-55.9) months with a median follow-up time of 49 months. Although LI performed in conjunction with sigmoidectomy for diverticulitis consisted of only 19% of ileostomy cases, 62% of hernias were (18/29) identified in this cohort. Rates of hernia formation increased with respect to body mass index (underweight 0%; normal 4.6%; overweight 13.8%; obese 21%). The multivariable model identified increased BMI (underweight/normal weight versus overweight: OR 4.13, 95% CI 1.06-16.04; underweight/normal weight versus obese: OR 8.74, 95% CI 2.17-35.23) and surgical indication (reference variable: diverticulitis; rectal cancer: OR 0.21, 95% CI 0.06-0.76; Crohn's/ulcerative colitis: OR 0.06, 95% CI 0.01-0.53; other: OR 0.15, 95% CI 0.04-0.64) as significant predictors of ileostomy site hernia.

CONCLUSION

The development of a hernia at the site of LI closure was influenced mostly by BMI, surgical indication, and operative time.