[Results of urethral reconstruction in adults after multiple hypospadias repairs]

S I Gamidov, M G Shneiderman, D Yu Pushkar, A O Vasil'ev, A V Govorov, R I Ovchinnikov, A Yu Popova, R D Dusmukhamedov
Urologii︠a︡ 2017, (2): 82-87

AIM: To improve treatment results in patients after multiple hypospadias repairs by optimizing the postoperative management.

MATERIALS AND METHODS: Eighty-two patients (mean age 48.1+/-15.3 years) with urethral strictures secondary to failed hypospadias repairs underwent staged graft urethroplasty using oral mucosa (cheek, lip, tongue) as a grafting material. In 62 patients, at the end of surgery the bladder was drained with a standard Foley catheter. In twenty patients the bladder was drained with a modified silicone urethral catheter, which had an additional channel for delivering drugs and removing the urethral wound effluent, and a second additional channel for inflating a balloon fixed to the catheter tube at different parts of the catheter.

RESULTS: The mean length of the stricture was 5.4+/-1.2 cm (from 1 to 16 cm). Twenty-eight patients had postoperative complications. Using the modified catheter resulted in statistically significantly (p<0.05) smaller percentage of complications (10% vs 41.9%) compared to standard Foley catheter. Urinalysis and sperm test on the follow up examination at 12 months showed that only 9 (10.9%) patients had signs of the inflammatory process. Seventy-five patients (91.5%) rated the appearance of the penis as "good"; only 5 (6.1%) and 2 (2.4%) patients considered the result as "satisfactory" and "unsatisfactory", respectively. Eighty patient (97.6%) regarded the treatment result as "good" for the quality of urination and only two (2.4%) considered it "satisfactory". When assessing the strength of urinary stream, 64 (78.1%), 13 (15.8%) and 5 (6.1%) patients rated it as "good", "satisfactory", and "unsatisfactory", respectively.

CONCLUSION: The study findings shows that staged urethroplasty using the oral mucosa restores the urethral patency, reduces the severity of the inflammatory process, thus improving the quality of life of patients after failed hypospadias repair. The proposed modification of the catheter ensures the timely delivery of drugs to the surgical site, evacuation the wound effluent from the urethra and helps prevent strictures by periodically inflating the adjustable balloon-dilator.

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