Unsuccessful burch colposuspension: Analysis of risk factors.

Seventy-five patients who underwent a Burch colposuspension were evaluated urodynamically before and after the surgical procedure. The women were divided into two groups, one with a urethral closure pressure of 30 cm HO or lower and one with a pressure over 30 cm HO. The two groups were comparable for age, parity, and weight. Significant differences were found between the two groups for both functional lengths and urethral closure pressure (P<0.005). The difference in the failure rate between the low urethral closure pressure group (21.2%) and the normal urethral pressure group (9.5%) was not statistically significant. On the other hand, the menopause is a condition which increases the surgical failure rate (26.6% versus 6.6%) (P<0.025). [ABSTRACT FROM AUTHOR]