The Importance of a Successful Initial Bladder Closure in the Surgical Management of Classical Bladder Exstrophy: Analysis of 144 Patients Treated at the Johns Hopkins Hospital Between 1975 and 1985

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Abstract
The staged functional closure of classical bladder exstrophy has produced improved results for many urologists involved in the surgical management of this congenital anomaly. To determine which factors are most important for achieving a successful outcome (urinary continence with preservation of normal renal function) the 144 patients treated at The Johns Hopkins Hospital between 1975 and 1985 were reviewed. Of these patients 51 were managed entirely at our institution, while 93 had had the initial surgical treatment elsewhere. All patients who had undergone primary bladder closure and bladder neck reconstruction were divided into 2 groups: group 1.sbd.patients who had a successful initial bladder closure (an extrophied bladder that is converted into a complete epispadias without wound infection, dehiscence or any degree of bladder prolapse on the first attempt) and group 2.sbd.children whose initial bladder closure was not successful. Both groups were analyzed with respect to bladder capacity at the time of bladder neck reconstruction, urinary continence rate, and interval between bladder neck reconstruction and achievement of urinary continence. Patients in group 1 had the largest bladders at the time of bladder neck reconstruction (mean capacity 79 cc, p equals 0.03), shortest intervals between primary closure and bladder neck reconstruction (mean 3.5 years, p equals 0.006), highest urinary continence rate (92 per cent, p equals 0.002), and the shortest interval between bladder neck reconstruction and achievement of urinary continence (mean 1.5 years, p equals 0.18). These findings suggest that a successful initial bladder closure is an important factor for obtaining a larger bladder more quickly and for achieving a high urinary continence rate in patients with classical bladder exstrophy undergoing the staged functional bladder closure.