[Morbidity and functional long-term follow-up of patients with surgical treatment of urinary tract endometriosis].

Objective: To assess postoperative complications, improvement of pain symptoms and residual urinary functional symptoms after surgery for deep infiltrative endometriosis affecting ureter or bladder.
Methods: Retrospective study of complications (Clavien-Dindo classification), pain (visual analog scale [VAS]) and urinary functional symptoms (Urinary Symptom Profile questionnaire [USP]) of patients surgically treated between 2007 and 2015 in University Hospitals of Lyon.
Results: Among 31 patients with endometriosis involving the bladder, 83.9% had a partial cystectomy and 16.1% an extra-mucosal resection. Among patients (n=20) with ureteral involvement, 85% had ureterectomy with ureterocystoneostomy and 15% had only ureterolysis. Grade III postoperative complications occurred in 6% and 0% of patients with bladder or ureteral surgery, respectively and no grade IV or V complications were reported. Mean bladder VAS dropped from 5.3±4.2 to 0.3±0.9 after a follow-up of 42 months (P<0.0001). In patients with ureteral involvement, mean flank VAS dropped from 3.6 to 0.9 after a follow-up of 33 months (P<0.0005). Mean postoperative USP score for dysuria and detrusor overactivity were 1.35/9 and 2.48/21 in case of bladder involvement, and 1.10/9 and 2.15/21 in case of ureteral involvement.
Conclusion: Multidisciplinary surgical management of deep infiltrative endometriosis affecting urinary tract was associated to a low risk of severe postoperative complications and to a long-term significant improvement of pain symptoms without significant residual functional urinary symptoms.
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