Prognostic value of repeated surgery on obstetric vesico-vaginal fistula outcome: A Cameroonian experience

Proportions and determinants of successful surgical repair of obstetric fistula in low- and middle-income countries: A systematic review and meta-analysis

BACKGROUND

Obstetric fistula is a serious and debilitating problem resulting from tissue necrosis on the reproductive and urinary and/or lower gastrointestinal tract organs due to prolonged labor. Primary studies of the treatment of obstetric fistulae report significantly variable treatment outcomes following surgical repair. However, no systematic review and meta-analysis has yet estimated the pooled proportion and identified the determinants of successful obstetric fistula surgical repair.

OBJECTIVE

To estimate the proportion and identify the determinants of successful surgical repair of obstetric fistulae in low- and middle-income countries.

METHODS

The protocol was developed and registered at the International Prospective Register of Systematic Reviews (ID CRD42022323630). Searches of PubMed, Embase, CINAHL, Scopus databases, and gray literature sources were performed. All the accessed studies were selected with Covidence, and the quality of the studies was examined. Finally, the data were extracted using Excel and analyzed with R software.

RESULTS

This review included 79 studies out of 9337 following the screening process. The analysis reveals that 77.85% (95%CI: 75.14%; 80.56%) of surgical repairs in low and middle-income countries are successful. Women who attain primary education and above, are married, and have alive neonatal outcomes are more likely to have successful repair outcomes. In contrast, women with female genital mutilation, primiparity, a large fistula size, a fistula classification of II and above, urethral damage, vaginal scarring, a circumferential defect, multiple fistulae, prior repair and postoperative complications are less likely to have successful repair outcomes.

CONCLUSION

The proportion of successful surgical repairs of obstetric fistula in low and middle-income countries remains suboptimal. Hence, stakeholders and policymakers must design and implement policies promoting women's education. In addition, fistula care providers need to reach and manage obstetric fistula cases early before complications, like vaginal fibrosis, occur.

Profile and outcome of patients with recurrent urogenital fistula in a fistula centre in Nigeria

INTRODUCTION AND HYPOTHESIS

Management of a recurrent urogenital fistula is very challenging and requires experienced surgeons. The aim of this study was to describe the characteristics, success rates, and associated factors related to surgical repairs of patients with recurrent urogenital fistulas by an experienced team at a fistula centre in Nigeria.

METHODS

This was a retrospective cohort study of 154 patients that had repeat urogenital fistula repairs at the National Obstetric Fistula Centre, Abakaliki, Nigeria, between January 2014 and December 2016. Information was retrieved from their hospital records. Successful repair was defined by continent status at 3 months after repair. Data were analyzed with SPSS version 20 by IBM Inc., and p < 0.05 was taken as statistically significant. Chi-square test was used to determine the association between the factors and successful repair.

RESULTS

The mean age was 36.27 ± 12.96 years. Obstetric fistula occurred in 92.2% of the patients. The success rates for the first, second, third, and fourth repeat repairs were 68.8%. 56.2%, 50%, and 0% respectively. Significant factors were the number of previous attempts at repair (χ² = 20.44, p = 0.002), age group (χ² = 16.95, p = 0.03), Waaldijk's classification (χ² = 13.31, p = 0.04), duration of fistula (χ² = 19.6, p = 0.03), surgeons' experience (χ² = 7.11, p = 0.04), and place of previous attempt at repair (χ² = 6.35, p = 0.02). There were no complications in 86.4%.

CONCLUSIONS

The success rate was good. Patients who had previous failed repairs at the fistula centre had better outcomes after the repeat surgeries. Centralizing fistula care will enhance optimal outcomes. It may also boost training and research in this specialty.

Management of genitourinary fistula

PURPOSE OF REVIEW

To review current literature on the management of genitourinary fistulae, specifically, the techniques for diagnosis, timing to repair, surgical approach and recent advancements in surgical technique.

RECENT FINDINGS

Recent advancement in minimally invasive surgery has prompted surgeons to perform fistula repairs with laparoscopic or robotic-assisted laparoscopic techniques. Whereas there is a role for transabdominal fistula closure, the majority of fistulae are still best approached via a transvaginal route.

SUMMARY

Genitourinary fistulae from obstetric trauma have received increased attention and funding to treat and prevent this devastating condition in developing countries. Despite multiple classification systems, a standardized classification that accurately identifies predictors of successful repair is lacking. In industrialized nations, genitourinary fistulae are rare and are most frequently associated with pelvic surgery, pelvic radiation, cancer or trauma. Surgical techniques to repair these fistulae have shifted from transabdominal laparotomy to minimally invasive laparoscopic procedures. Vascularized tissue flaps can play an important role in successful closure of complex fistulae. Despite advancements in surgical technology, overarching principles of fistula closure remain. The majority of fistulae can be closed through a transvaginal approach, with a tension-free, watertight, multilayer closure.