The Effect of Posterior Sagittal Anorectoplasty and its Variants on Lower Urinary Tract Function in Children With Anorectal Malformations

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Abstract
The effect of posterior sagittal anorectoplasty (PSARP) and its variants on lower urinary tract function was investigated urodynamically in 32 patients with anorectal malformations. In 27 patients urodynamic evaluation was performed before and after surgery and in 4 it was done postoperatively only. One child was clinically assessed with no postoperative urodynamic study. Minor postoperative changes in the specific preoperative urodynamic pattern were observed in 4 cases but the changes did not seem to be related to surgery. In 3 boys with rectourethral fistulas detrusor failure consistent with autonomic denervation was noted postoperatively. Standard posterior sagittal anorectoplasty was performed in 1 of the 3 boys and posterior sagittal anorectoplasty combined with additional transabdominal procedures was done in the other 2. In general our findings suggest that posterior sagittal anorectoplasty and its variants do not affect lower urinary tract function unless these surgical techniques are combined with major transabdominal procedures and extensive retrovesical dissection.