Determinants and predictive model of failure of surgical repair of obstetric vesico-vaginal fistula in the Democratic Republic of the Congo.

INTRODUCTION: Surgical repair of obstetric fistula aims to restore the anatomical and functional integrity of the urinary tract, enabling affected women to regain their dignity and quality of life. However, such repairs can end in a failure. The aim of this study is to develop a predictive score to identify factors influencing failure of surgical repair of obstetric vesico-vaginal fistula (FSROVVF) in the Democratic Republic of the Congo. METHODS: This was an analytical cross-sectional study of 318 women with obstetric vesico-vaginal fistula (OVVF) who had undergone surgical management. A bivariate and then a multivariate analysis were performed. Score discrimination was assessed using the ROC curve and C-index, and score calibration using the Hosmer-Lemeshow test. RESULTS: Surgical repair of OVVF was unsuccessful in 16.98% of cases (54/318). After logistic modeling, six criteria emerged as predictive factors for FSROVVF: the presence of fibrosis (AOR = 5.01; 95% CI:1.73-14.49), the presence of 2 or more fistulas (AOR = 9.04; 95% CI:3.01-27.13), the association of OVVF with another anatomoclinical entity of fistula (AOR = 3.16; 95% CI:1.09-9.13), the fistula size > 3 cm (AOR = 3.65; 95% CI:1.36-9.76), the peri-operative hemorrhage (AOR = 7.01; 95% CI:2.33-21.03), and the post-operative infection (AOR = 178.89; 95% CI:26.09-1226.64). A score ranging from 0 to 13 points was obtained, of which a value ≤ 5 points defines a low risk of FSROVVF, a value between 6 and 8 points defines a moderate risk and value ≥ 9 points corresponds to a high risk of FSROVVF. The area under the ROC curve of the score is 0.925 with a sensitivity of 61.11%, a specificity of 96.59%, a positive predictive value of 78.57% and a negative predictive value of 92.39%. CONCLUSION: This study demonstrated that the number of fistulas ≥ 2, fistula size > 3 cm, fibrosis, association of OVVF with other types of fistulas, peri-operative hemorrhage, and post-operative infection are factors predictive of FSROVVF. These six factors are key contributors to the score used to predict FSROVVF. Once validated, this score will inform and enable preoperative counseling regarding the prognosis and the chances of a successful outcome of surgical repair of OVVF.

Access to High Quality Surgical Repair Services is a Fundamental Right of Patients with Obstetric Fistulas: A Study on Quality of Life Data in the Democratic Republic of the Congo.

Purpose: The aim of this study was to assess quality of life (QoL) using the WHOQOL-BREF questionnaire among obstetric fistula (OF) patients before and after surgical repair of OF (SROF). Methods: A longitudinal cohort study was conducted between November 2022 and October 2023 in the Democratic Republic of the Congo (DRC) among OF patients to assess their QoL before and after SROF. A systematic sampling technique was used to recruit a total of 158 OF patients. The WHOQOL-BREF questionnaire assessed general health, life experience, as well as physical, social, psychological, and environmental domains. Results: The mean age among the 158 respondents was 33.51 ± 9.63 years, and 77.85% of them lived in rural areas. In terms of surgical outcomes, 80.38% had closure of the OF with regained continence, 5.7% had closure of the OF with persistent incontinence, and 13.9% had a failed surgical repair. Overall mean QoL scores were higher after OF surgical repair (3.83, standard deviation [SD]=0.89) in comparison to pre-operative (1.58, SD=0.63) (p<0.001). These QoL improvements included physical (mean score 66.32 post-surgery versus 28.37 before, p<0.001), social (mean score 64.92 post-surgery versus 27.90 before, p<0.001), psychological (mean score 68.09 post-surgery versus 21.28 before, p<0.001), environmental (mean score 48.41 post-surgery versus 16.91 before p<0.001), and general domains. Patients with a successful OF repair had a better QoL score than those with a closed fistula but ongoing incontinence or those for whom surgery failed to close the fistula. Conclusion: The present study showed that among OF patients, all QoL domains were impaired before surgical repair and significantly improved after surgery. Successful OF closure alleviates the consequences of OF and helps to restore patients' wellbeing. Our findings call for improved access to high-quality surgical repair services as a fundamental right for OF patients.