Problems related to voiding pattern in patients with hypospadias repair: i?s the problem related to only operation?

Abstract

Background: Problems related to the urine flow are rather common in hypospadias patients. As these problems are detected during follow-up of urine flow in the post-operative period, it is difficult to determine whether it is a problem emerging secondary to the surgery or it is a congenital condition. Objective: The objective of this study was to evaluate the lower urinary tract functions in hypospadias patients with pre-operative and post-operative uroflowmetric examinations and to determine whether it is a complication of the surgery or a congenital condition. Materials and Methods: A total of 63 patients who underwent hypospadias surgery and were monitored postoperatively between January 2012 and January 2013 were enrolled in the study. Data about the pre- and post-operative uroflowmetry parameters were collected and compared. Results: Of total 83 patients, only 63 (76.8%) patients, whose parent’s provided the written consent, were studied. The mean age was 6.9±2.4 years (3–14 years). The mean bladder volume estimated according to the age of the patients was 266.5±71.7 ml. The mean bladder volume before and after the surgery was 179±56 ml and 189±53 ml, respectively, and the bladder volumes were 67% and 71% of the estimated bladder volume, respectively. There was no significant difference between the bladder volumes measured before and after the surgery (p=0.159). Furthermore, no significant change in the measurements regarding the maximum flow rate, time to maximum flow rate, total time of the urine flow, mean flow rate, voided volume, voiding time, and post-void residual volume was observed. Conclusion: The uroflowmetry is an easy-to-use, non-invasive, and objective method, which can be used for the early diagnosis of the urethral stricture following the hypospadias surgery and the evaluation of the obstructions in the lower urinary tract

Urinary Flow Rates in Anterior Hypospadias

“…A similar finding was also reported by previous authors. [ 7 , 8 ] The current European guidelines recommend surgery between 6 and 18 months of age. [ 9 , 10 ]…”