Extravesical Transabdominal VVF Repair
Extravesical repair approaches a vesicovaginal fistula (VVF) through the vesicovaginal space, avoiding a separate access cystotomy or bladder bivalving. Separating the fistula still creates bladder and vaginal defects that require repair. It is an alternative to O'Conor transvesical exposure, not a proven superior operation.[3][5]
Miklos and colleagues described their laparoscopic variant in 1999; later reports detail the technique and a 44-patient series. Other extravesical descriptions preceded that report, so 1999 should not be treated as the first use of the approach.[2][3]
Abdominal vesicovaginal fistula approachesOriginal schematic · v2026-09-11 · Clinical review pendingExtravesical dissection approaches the fistula without bivalving the bladder. O'Conor access opens the bladder toward the fistula. Bladder and vaginal defects are closed separately.View: Female bladder-vagina interface, conceptual operative views. Scale: Conceptual schematic; not to scale. Units: No measured geometry; any dimensions are illustrative.Limits: Extravesical repair still opens the bladder defect; route and interposition depend on fistula and tissue quality.Source check: 2026-09-11. This is an editorial check with the access limits below. No named clinician has signed off.EAU Non-neurogenic Female LUTS: disease management — 2026 web guideline. Access: official full text. Continence operations and fistula-repair principles; does not validate exact suture trajectories.WARWIKI original vector schematic; individual illustrator not recorded. No separate figure reuse license recorded; linked sources are concept references, not artwork licenses.Open original SVG with embedded source record ↗
Extravesical dissection approaches the fistula without bivalving the bladder. O'Conor access opens the bladder toward the fistula. Bladder and vaginal defects are closed separately. Extravesical repair still opens the bladder defect; route and interposition depend on fistula and tissue quality. (Original WARWIKI schematic; see the figure source record and review limits.)
Choosing the Approach
Extravesical abdominal exposure can be useful for a high cuff fistula, difficult vaginal access, or selected recurrent fistulas. Assess the ureters, bladder capacity, tissue quality, malignancy/radiation history and previous surgery. A high location alone does not exclude vaginal repair by an experienced fistula surgeon.[3][5][6][9]
| Consideration | Implication for planning |
|---|---|
| Accessible high fistula with separable bladder/vaginal planes | Extravesical repair can avoid an additional access cystotomy. |
| Dense scarring or uncertain ureteral relationships | Transvesical exposure may make identification and dissection safer. |
| Trigonal location or associated ureteral injury | Define anatomy carefully; this does not create an absolute extravesical prohibition. Cystotomy or ureteral reconstruction may be required. |
| Need for reimplantation, augmentation or another abdominal procedure | Plan the combined reconstruction and exposure. These procedures remain possible during an abdominal operation, although a strictly no-access-cystotomy plan may need modification. |
These are anatomical considerations rather than comparative outcome guarantees. The O'Conor series and ERUS consensus support choosing exposure that permits safe mobilization and closure; neither establishes that extravesical repair always loses less tissue, takes less time or shortens hospitalization.[5][8]
Operative Framework
The following describes the published extravesical principles and selected technique variants. Port geometry, dissection extent, sutures and drainage should fit the actual anatomy.
Identify the fistula and protect the ureters
Perform cystoscopy and establish the number and location of openings. A guidewire or small catheter through the fistula can mark it. A vaginal sizer or sponge stick supports the vaginal cuff; it should not be forced through the fistula. Consider ureteral stents when the orifices are at risk. ERUS particularly supports stenting for fistulas near the ureteral orifices; Miklos used ureteral stents when needed.[3][5]
Separate the bladder and vagina
Use atraumatic exposure and careful dissection of the vesicovaginal space. Identify the marked tract, separate the walls and preserve enough vascularized tissue for independent, tension-free closure. The Miklos technique excised the tract and extended dissection approximately 1–2 cm distally. This is a reported technique, not a rule to remove every area of scar or sacrifice viable bladder/vaginal tissue to achieve a fixed margin.[3]
Close the defects and test the repair
Miklos described one vaginal layer using 2-0 polyglactin and two bladder layers using 3-0 polyglactin, with interrupted figure-of-eight sutures and testing after each bladder layer. The paper's bladder-fill protocol used 300–400 mL; the appropriate volume in practice must account for bladder capacity and avoid overdistension. The goal is a watertight, tension-free repair, not compliance with a universal fill volume.[3]
Abdel-Karim's series instead specifies transverse vaginal and longitudinal bladder closure with omental interposition. Orient the closures to avoid overlapping suture lines where feasible; a fixed direction is not applicable to every defect.[11] The 2015 review's association between documented leak testing and success does not prove a causal improvement, although testing permits immediate recognition of a leak.[4]
Decide on interposition
Vascularized omentum or peritoneum can separate closures, particularly when tissue quality is compromised. Choice depends on the available tissue, previous operations and repair complexity. Small successful series without interposition do not establish that a flap is unnecessary in every case; successful series with a flap do not establish universal benefit.[3][5]
Evans' retrospective abdominal series reported 10/10 benign fistulas healed with interposition versus 12/19 without. The often repeated 12/12 figure combines benign and malignant flap cases. Selection and the small groups limit causal interpretation.[16]
Giusti used a collagen/fibrin sealant patch (TachoSil) in 16 early post-hysterectomy repairs; Yang reported a peritoneal flap in 15 selected patients. These reports do not demonstrate equivalence of a sealant patch to living vascularized tissue or prove that either adjunct reduces morbidity.[10][13]
Outcomes and Their Limits
| Study | Actual population | Findings and interpretation |
|---|---|---|
| Miklos 2015 | 44 laparoscopic VVFs, including 11 recurrent | Overall closure 43/44 at mean 17.3 months. The abstract reports 42/43 closures without omentum. The manuscript has inconsistent secondary denominators and perioperative values, so precise blood-loss/stay comparisons are not reproduced here. “15-year experience” describes the accrual period, not 15-year patient follow-up.[3] |
| Abdel-Karim 2011 | 15 supratrigonal VVFs; malignant, radiation-related and recurrent fistulas excluded | All healed at mean 18.9 months after repair with omentum; no control group.[11] |
| Giusti 2018 | 16 early post-hysterectomy repairs with TachoSil | All reported continence at one month and good quality of life at three months; no high-grade complications reported. This short retrospective series does not justify early repair irrespective of inflammation or oncologic status.[10] |
| Lecoanet 2023 | 22 robotic repairs: 9 extravesical, 13 transvesical | No clinical recurrence at median 15 months. Four postoperative complications occurred, including one major; 20/22 had interposition. Zero recurrence in both small groups does not prove equivalence.[12] |
| Miklos systematic review 2015 | 44 reports, predominantly case reports/series; laparoscopic and robotic repairs | Reported closure 98.04% extravesical versus 95.89% transvesical; no significant difference. Heterogeneity prevented a formal statistical meta-analysis. No randomized equivalence inference is warranted.[4] |
| Tavares synthesis 2026 | 14 studies, 206 robotic repairs: 169 transvesical and 37 extravesical | Descriptive overall complication and recurrence rates were 4.37% and 2.91%. Exploratory comparisons found no significant difference in operative time, complications or recurrence. Blood loss, stay and catheter duration were not statistically compared. Small retrospective groups and variable follow-up limit conclusions.[7] |
Tavares performed a descriptive synthesis rather than a formal meta-analysis. Its two comparative studies had moderate and serious risk of bias. The reported absence of recurrence over varying follow-up periods is not a uniform primary-closure endpoint, and its rates should not be used to rank robotic repair against unrelated transvaginal series.[7]
Wang's 2026 cohort compared open, laparoscopic and robotic platforms, not extravesical versus transvesical exposure. Its associations with radiation and trigonal anatomy can inform counseling, but do not establish an absolute contraindication to extravesical repair or show that extravesical dissection itself improves perioperative outcomes.[15]
The 2026 Cochrane publication is a review protocol; it contains no completed comparative treatment results.[1]
Selected Variants
- Single-site laparoscopy: Abdel-Karim reported five patients with an additional suturing port, omental interposition and urethral drainage for three weeks; all were continent without recurrence at mean eight months. This is feasibility evidence for skilled laparoscopic surgeons.[14]
- Omental interposition demonstration: Watts reports one uncomplicated robotic case with a negative two-week cystogram and no reported incontinence at three months; one case cannot estimate a success rate.[9]
- Peritoneal flap: Yang's 15-patient series included seven prior repair failures and reported closure without complications at mean 7.8 months. The cohort included both supratrigonal and trigonal anatomy.[13]
- Oncologic treatment interval: Dayan-Schwartz's video case was repaired during a treatment-free interval after conservative treatment failed. It does not demonstrate that operating during active chemotherapy/immunotherapy is routinely safe.[17]
Drainage, Follow-up and Complications
Maintain unobstructed bladder drainage and specify who will assess healing before removal. Miklos used suprapubic drainage for 2–3 weeks with cystoscopic, filling and vaginal assessment; ERUS describes urethral drainage for 10–14 days and cystography before removal. These are published protocols, not interchangeable mandatory schedules. Stent removal depends on its indication, especially if ureteral reconstruction was performed.[3][5]
Monitor for recurrent leakage, catheter obstruction, infection, bleeding, ureteral injury/obstruction, bowel injury and new urinary symptoms. A stent assists identification but does not eliminate ureteral injury. Counsel separately about anatomical closure, continence and sexual recovery, and individualize activity and intercourse restrictions to healing rather than imposing an unsupported universal cystoscopy or imaging schedule.[5][7][12]
See Also
- O'Conor (Transabdominal Transvesical) VVF Repair
- Transvaginal Latzko Repair
- Transvaginal Sims-Simon Multilayered Closure
- Martius Flap for VVF
- Conservative VVF Management
- Endoscopic VVF Management
- Vesicovaginal Fistula (clinical)
- Female Fistula Repair (atlas)
- Omental Flap (foundations)
Videos
References
1. Okada Y, Matsushita T, Hasegawa T, et al. Surgical interventions for treating vesicovaginal fistula in women. Protocol, not a completed review. Cochrane Database Syst Rev. 2026;1:CD015413. doi:10.1002/14651858.CD015413
2. Miklos JR, Moore RD. Laparoscopic transperitoneal extravesical approach to vesicovaginal fistula repair without omental flap: a novel technique. Int Urogynecol J. 2015;26(3):447–448. doi:10.1007/s00192-013-2292-7
3. Miklos JR, Moore RD. Laparoscopic extravesical vesicovaginal fistula repair: our technique and 15-year experience. Int Urogynecol J. 2015;26(3):441–446. doi:10.1007/s00192-014-2458-y
4. Miklos JR, Moore RD, Chinthakanan O. Laparoscopic and robotic-assisted vesicovaginal fistula repair: a systematic review of the literature. J Minim Invasive Gynecol. 2015;22(5):727–736. doi:10.1016/j.jmig.2015.03.001
5. Randazzo M, Lengauer L, Rochat CH, et al. Best practices in robotic-assisted repair of vesicovaginal fistula: a consensus report from the European Association of Urology Robotic Urology Section Scientific Working Group for Reconstructive Urology. Eur Urol. 2020;78(3):432–442. doi:10.1016/j.eururo.2020.06.029
6. Ramphal SR. Laparoscopic approach to vesicovaginal fistulae. Best Pract Res Clin Obstet Gynaecol. 2019;54:49–60. doi:10.1016/j.bpobgyn.2018.06.008
7. Tavares M, do Carmo Pinto M, Conde Carvalho G, Silva-Ramos M. Vesicovaginal fistula robotics-assisted repair: a systematic review and quantitative synthesis. Int Urogynecol J. 2026. doi:10.1007/s00192-026-06578-8
8. Nesrallah LJ, Srougi M, Gittes RF. The O'Conor technique: the gold standard for supratrigonal vesicovaginal fistula repair. J Urol. 1999;161(2):566–568. doi:10.1016/s0022-5347(01)61951-7
9. Watts KL, Ho R, Ghavamian R, Abraham N. Robot-assisted extravesical vesicovaginal fistula repair utilizing laparoscopically mobilized omental flap interposition. Int Urogynecol J. 2017;28(4):641–644. doi:10.1007/s00192-016-3218-y
10. Giusti G, Lucci Chiarissi M, Abate D, et al. Early repair of post-hysterectomy vesicovaginal fistulae through a laparoscopic transperitoneal extravesical approach: experience of a single center. Urology. 2018;119:44–48. doi:10.1016/j.urology.2018.05.021
11. Abdel-Karim AM, Mousa A, Hasouna M, Elsalmy S. Laparoscopic transperitoneal extravesical repair of vesicovaginal fistula. Int Urogynecol J. 2011;22(6):693–697. doi:10.1007/s00192-010-1334-7
12. Lecoanet P, Madanelo M, Tricard T, et al. Robot-assisted vesicovaginal fistula repair: comparison of the extravesical and transvesical techniques. Int Urogynecol J. 2023;34(10):2479–2485. doi:10.1007/s00192-023-05565-7
13. Yang Y, Chenchen H, Shiliang W, Yuke C, Cheng S. Robot-assisted vesicovaginal fistula repair with "rainbow-shaped" peritoneal flap: a single-center experience. Arch Gynecol Obstet. 2025;311(6):1697–1703. doi:10.1007/s00404-024-07919-y
14. Abdel-Karim AM, Moussa A, Elsalmy S. Laparoendoscopic single-site surgery extravesical repair of vesicovaginal fistula: early experience. Urology. 2011;78(3):567–571. doi:10.1016/j.urology.2011.05.036
15. Wang Z, Pokhrel G, Yu S, et al. Vesicovaginal fistula repair: comparative analysis of perioperative outcomes and predictors of success in open, laparoscopic, and robotic approaches. Eur J Med Res. 2026. doi:10.1186/s40001-026-03937-5
16. Evans DH, Madjar S, Politano VA, et al. Interposition flaps in transabdominal vesicovaginal fistula repairs: are they really necessary? Urology. 2001;57(4):670–674. doi:10.1016/s0090-4295(01)00933-5
17. Dayan-Schwartz A, Shachor N, Braverman M, Kogan L. Repair of vesicovaginal fistula in 12 steps using the da Vinci surgical system. J Minim Invasive Gynecol. 2026;33(2):162–163. doi:10.1016/j.jmig.2025.06.015