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  • Title: Surgical complications of bladder augmentation: comparison between various enterocystoplasties in 133 patients.
    Author: Shekarriz B, Upadhyay J, Demirbilek S, Barthold JS, González R.
    Journal: Urology; 2000 Jan; 55(1):123-8. PubMed ID: 10654908.
    Abstract:
    OBJECTIVES: Ileal and sigmoid augmentation are equally effective at increasing bladder capacity and compliance. Therefore, knowledge of the incidence of major complications, including perforation, small bowel obstruction (SBO), anastomotic complications, calculus formation, and indications for revision may be useful in choosing the ideal segment. We compared the complications of ileocystoplasty and two types of sigmoidocystoplasty that required reoperative surgery. METHODS: Between 1981 and 1997, 158 patients with a mean age of 11 years (range 2 to 25) underwent augmentation cystoplasty. Ileum or sigmoid colon was used in 133 patients, who were the subjects of this study. The mean follow-up was 64 months (range 6 to 185). Indications included neurogenic bladder (n = 100), bladder exstrophy (n = 12), cloacal exstrophy (n = 6), posterior urethral valves (n = 3), and miscellaneous (n = 12). Ileum was used in 65 patients and sigmoid colon in 68. Of these, 48 underwent conventional colocystoplasty and 20 seromuscular colocystoplasty lined with urothelium (SCLU). Seventy-nine percent required additional procedures to achieve continence or facilitate catheterization, which included bladder neck procedures in 56% or continent stomas alone in 23%. RESULTS: There were no deaths or complications of bowel anastomosis. Overall, continence was achieved in 95%. Spontaneous bladder perforation was highest in patients with neurogenic bladder. Calculi developed more frequently in patients with continent stomas (P = 0.04) and in patients with bladder/cloacal exstrophy (32%) than in patients with neurogenic bladder (P = 0.01). Additional procedures and route of catheterization did not increase the risk of perforation. One patient with SCLU with known hypercalciuria developed bladder calculi. CONCLUSIONS: Sigmoid colon showed a trend of a lower rate of SBO with no difference in perforation or stone formation compared with ileum. Primary diagnoses of bladder or cloacal exstrophy and continent stomas are risk factors for the development of calculi. SCLU has a low rate of surgical complications and no incidence of perforation or SBO thus far; therefore, we advocate the use of SCLU when feasible, and sigmoid as the preferred bowel segment for augmentation cystoplasty.
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