Abstract
Introduction and hypothesis
The association between hysterectomy type, laparoscopy use and vesicovaginal fistula (VVF) is currently unclear and would be useful to determine route of surgery and provide adequate patient counseling. The objective of this study was to evaluate the magnitude of association between the use of laparoscopic assistance, recognized intraoperative urinary tract injury and subsequent VVF repair and to quantify any differences in fistula repair and injury detection by hysterectomy type. Lastly, we sought to determine whether the type of hysterectomy is a risk factor for VVF repair independent of injury identification.
Methods
We performed a retrospective cohort study utilizing the Healthcare Cost and Utilization Project database examining benign hysterectomies performed in California, New York and Florida from 2005–2011. Multivariable logistic regression models were used to evaluate associations among hysterectomy type, reported injury and VVF.
Results
Of 581,395 eligible hysterectomies, urinary tract injuries occurred in 6702 patients (1.15%) and 640 patients developed VVF (0.11%). Patients with reported injury were 20-fold more likely to develop VVF than those without (OR = 20.6; 1.96% vs. 0.089% respectively). The association between reported injury and VVF development was stronger if laparoscopy was involved (OR = 30) than if it was not (OR = 17). Patients undergoing laparoscopic procedures were less likely to have injury reported (OR = 0.6) but more likely to undergo VVF repair (OR = 1.5). This association with VVF repair was independent of injury identification. Patients developing VVF were more likely to have undergone total abdominal hysterectomy compared to other hysterectomy types.
Conclusions
Laparoscopy is an independent risk factor for the need for subsequent VVF repair, independent of hysterectomy type and presence of intraoperatively recognized urinary tract injury.
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Funding
Dr. Ayush Giri was a scholar of the Building Interdisciplinary Research Careers in Women’s Health (BIRCWH) program [2K12HD043483 (PI: Katherine Hartmann)] and a recipient of the NIDDK Research Scientist Development Award [1K01DK120631-01A1] when this work was performed.
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BM Butler: literature review, manuscript writing/editing
RA Adam: project design, manuscript editing
A Giri: project design, analysis, manuscript writing/editing
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Appendices
Appendix A
Table 6
Appendix B
Gynecologic malignancy diagnostic and procedural codes used to exclude cases that involved gynecologic malignancy.
ICD-9 Gynecologic Malignancy diagnostic codes
179 Malignant neoplasm of uterus, part unspecified
180.xx Malignant neoplasm of cervix uteri
182.xx Malignant neoplasm of body of uterus
183.xx Malignant neoplasm of ovary and other uterine adnexa
184.xx Malignant neoplasm of other and unspecified female genital organs
233.1 Carcinoma in situ of cervix uteri
233.2 Carcinoma in situ of other and unspecified parts of uterus
ICD-9-CM procedure codes
68.6x Radical abdominal hysterectomy
68.7x Radical vaginal hysterectomy
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Butler, B.M., Adam, R.A. & Giri, A. Incidental urinary tract injury and the formation of vesicovaginal fistula at the time of hysterectomy for benign indications. Int Urogynecol J 34, 391–398 (2023). https://doi.org/10.1007/s00192-022-05367-3
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DOI: https://doi.org/10.1007/s00192-022-05367-3