Mesh erosion into the colon following repair of parastomal hernia: A case report

BACKGROUND In recent years,mesh has become a standard repair method for parastomal hernia surgery due to its low recurrence rate and low postoperative pain.However,using mesh to repair parastomal hernias also carries potential dangers.One of these dangers is mesh erosion,a rare but serious complication following hernia surgery,particularly parastomal hernia surgery,and has attracted the attention of surgeons in recent years.CASE SUMMARY Herein,we report the case of a 67-year-old woman with mesh erosion after parastomal hernia surgery.The patient,who underwent parastomal hernia repair surgery 3 years prior,presented to the surgery clinic with a complaint of chronic abdominal pain upon resuming defecation through the anus.Three months later,a portion of the mesh was excreted from the patient’s anus and was removed by a doctor.Imaging revealed that the patient’s colon had formed a t-branch tube structure,which was formed by the mesh erosion.The surgery reconstructed the structure of the colon and eliminated potential bowel perforation.CONCLUSION Surgeons should consider mesh erosion since it has an insidious development and is difficult to diagnose at the early stage.

Modified laparoscopic Sugarbaker repair of parastomal hernia with a three-point anchoring technique

AIMTo retrospectively evaluate the safety and feasibility of a new modified laparoscopic Sugarbaker repair in patients with parastomal hernias.METHODSA retrospective study was performed to analyze eight patients who underwent parastomal hernia repair between June 2016 and January 2018. All of these patients received modified laparoscopic Sugarbakerhernia repair treatment. This modifed technique included an innovative three-point anchoring and complete su-turing technique to fix the mesh. All procedures were performed by a skilled hernia surgeon. Demographic data and perioperative outcomes were collected to eva-luate the safety and effcacy of this modifed technique.RESULTSOf these eight patients, two had concomitant incisional hernias. All the hernias were repaired by the modifed laparoscopic Sugarbaker technique with no conversion to laparotomy. Three patients had in-situ reconstruc-tion of intestinal stoma. The median mesh size was 300 cm2, and the mean operative time was 205.6 min. The mean postoperative hospitalization time was 10.4 d, with a median pain score of 1 （visual analog scale method） at postoperative day 1. Two patientsdeveloped postoperative complications. One patient had a pocket of effusion surrounding the biologic mesh, and one patient experienced an infection around the reconstructed stoma. Both patients recovered after conservative management. There was no recurrence during the follow-up period （6-22 mo, average 13 mo）.CONCLUSIONThe modifed laparoscopic Sugarbaker repair could fx the mesh reliably with mild postoperative pain and a low recurrence rate. The technique is safe and feasible for parastomal hernias.

Synthetic vs biologic mesh for the repair and prevention of parastomal hernia

AIM To outline current evidence regarding prevention and treatment of parastomal hernia and to compare use of synthetic and biologic mesh.METHODS Relevant databases were searched for studies reporting hernia recurrence, wound and mesh infection, other complications, surgical techniques and mortality. Weighted pooled proportions （95%CI） were calculated using StatsDirect. Heterogeneity concerning outcome mea-sures was determined using Cochran’s Q test and was quantifed using I2. Random and fxed effects models were used. Meta-analysis was performed with Review Manager software with the statistical signifcance set at P ≤ 0.05.RESULTSForty-four studies were included： 5 reporting biologic mesh repairs; 21, synthetic mesh repairs; and 18, prophylactic mesh repairs. Most of the studies were retrospective cohorts of low to moderate quality. The hernia recurrence rate was higher after undergoing biologic compared to synthetic mesh repair （24.0% vs 15.1%, P = 0.01）. No significant difference was found concerning wound and mesh infection （5.6% vs 2.8%; 0% vs 3.1%）. Open and laparoscopic techniques were comparable regarding recurrences and infections. Prophylactic mesh placement reduced the occurrence of a parastomal hernia （OR = 0.20, P 〈 0.0006） without increasing wound infection [7.8% vs 8.2% （OR = 1.04, P = 0.91）] and without differences between the mesh types.

Risk factors for parastomal hernia in patients with colostomy:a scope overview

Objective:To investigate the risk factors of parastomal hernia in patients with a colostomy.Methods:The related studies published in Embase,PubMed,CNKI,and other databases were searched.The search time limit was from the establishment of the database to March 2020.After the literature screening,data extraction and cross-checking were carried out independently by two researchers,the qualitative research method was used to summarize.Results:After screening,6 articles were included.The results of qualitative analysis showed that a total of 10 risk factors of parastomal hernia were concluded which could be classified into personal and colostomy factors.Conclusion:The current evidence showed that 10 risk factors such as age,Body Mass Index and colostomy were related to the occurrence of parastomal hernia in patients with a colostomy.Limited by the type and quantity of research,the above conclusions need to be verified by more high-quality research.

Development and validation of a nomogram prediction model for the risk of parastomal hernia

Background Parastomal hernia is one of the potential complications after enterostomy.There is currently no early risk assessment tool for parastomal hernia.Methods The current investigation was conducted using retrospective studies.A total of 302 cases were used develop and internally to validate a nomogram prediction model,and 67 cases were used for external validation.Independent risk factors for parastomal hernia after permanent sigmoid colostomy were assessed via univariate analysis and binary logistic regression analysis.The nomogram prediction model was established based on independent risk factors.Results Body mass index,serum albumin,age,sex,and stoma diameter were independent risk factors for parastomal hernia.The areas under the receiver operating characteristic curves were 0.909 in the development group and 0.801 in the validation group.The Hosmer-Lemeshow test(P>0.05)and calibration curves indicated good consistency between actual observations and predicted probabilities.Conclusions A nomogram prediction model was constructed and validated based on risk factors for parastomal hernia.The nomogram could be generalized to patients undergoing surgery for stoma by specialized surgeons to provide relevant references for stoma patients.

Parastomal hernia repair

Despite significant advances in abdominal wall reconstruction,parastomal hernias remain a complex problem,with a high risk of recurrence following repair.While a number of surgical hernia repair techniques have been proposed,there is no consensus on optimal management.Several clinical variables must be considered when developing a comprehensive repair plan that minimizes the likelihood of hernia recurrence and surgical site occurrences.In this review,we describe the incidence of parastomal hernias and discuss pertinent risk factors,medical history findings,physical examination findings,supplementary diagnostic modalities,parastomal hernia classification systems,surgical indications,and repair techniques.Special consideration is given to the discussion of mesh reinforcement,including available biomaterials,anatomic plane selection,and the extent of mesh reinforcement.Although open repairs are the primary focus of this article,minimally invasive laparoscopic and robotic approaches are also briefly described.It is our hope that the provided surgical outcome data will help guide surgical management and optimize outcomes for affected patients.

Failed stapled rectal resection in a constipated patient with rectal aganglionosis

A rare case of a severely constipated patient with rectal aganglionosis is herein reported.The patient,who had no megacolon/megarectum,underwent a STARR,i.e.,stapled transanal rectal resection,for obstructed defecation,but her symptoms were not relieved.She started suffering from severe chronic proctalgia possibly due to peri-retained staples fibrosis.Intestinal transit times were normal and no megarectum/megacolon was found at barium enema.A diverting sigmoidostomy was then carried out,which was complicated by an early parastomal hernia,which affected stoma emptying.She also had a severe diverting proctitis,causing rectal bleeding,and still complained of both proctalgia and tenesmus.A deep rectal biopsy under anesthesia showed no ganglia in the rectum,whereas ganglia were present and normal in the sigmoid at the stoma site.As she refused a Duhamel procedure,an intersphincteric rectal resection and a refashioning of the stoma was scheduled.This case report shows that a complete assessment of the potential causes of constipation should be carried out prior to any surgical procedure.