Jalil Hosseini1, Morteza Fallah-Karkan2, Amirhossein Rahavian3, Farzin Soleimanzadeh4, Hojjat Salimi5, Keyvan Ghadimi6, Maryam Fahim6. 1. Professor of Urology, Infertility and Reproductive Health Research Center (IRHRC), Shahid Beheshti University Medical Science Tehran, Iran. 2. Laser Application in Medical Science Research Center, Shahid Beheshti University of Medical Sciences Tehran, Iran. 3. Resident of Urology, Infertility and Reproductive Health Research Center (IRHRC), Shahid Beheshti University Medical Science Tehran, Iran. 4. Department of Urology, Imam Reza Hospital, Tabriz University of Medical Sciences Tabriz, Iran. 5. Fellowship of Reconstructive Urology, Infertility and Reproductive Health Research Center (IRHRC), Shahid Beheshti University Medical Science Tehran, Iran. 6. School of Medicine, Isfahan University of Medical Sciences Isfahan, Iran.
Abstract
Introduction: Current methods for Urethral dilatation include filiforms and followers, metal sounds, balloon dilators, catheters of increasing size, introduction of a Council catheter over a guidewire, and coaxial dilators of increasing size. These methods however are effective but expensive and use of them is limited in many third world countries. In this retrospective study, we report the feasibility, complication and long-term follow-up of the newly Nelaton based urethral dilation method following by self calibration plan as a single referral center experience. Method: We reviewed the records of 333 men with urethral stricture longer than 1 cm over a 16-year period between March 2001 to December 2018. In this method the straight flexi-tip guide-wire is introduced through the urethra and advanced under cystoscopic vision. This wire then was used to guide the dilatation after withdrawal of the cystoscope. The tip of well-lubricated Nelaton urethral catheters incised and then advanced gently over the guide-wire serially from the smallest to the largest appropriate sizes. The patients were followed up regularly after the dilatation 1, 3, 6, 12 months and then annually postoperatively with taking history, PVR and uroflowmetry and all underwent retrograde urethrography at the 6th and 12th months of follow-up. Result: The mean age of patients was 39.19±16.9 years old (10 to 86 years). The mean period of the follow-up was 3.6±1.1 years (range, 3 to 4.3 years). Success rate after first attempted was 58.5% and after two attempted was 77.7% in two years follow up. After one year 51 (15.3%), two years 23 (6.9%) and after three years 11 (3.3%) cases required continued self dilatation once a month. Conclusion: Guide wire-assisted urethral dilatation is shown to be acceptable, cost-effective, simple, safe and feasible techniques for urethral dilation. Our technique may be the choice manner in selected patients with short memberanous urethral stricture, because of decrease the risk of incontinency. AJCEU
Introduction: Current methods for Urethral dilatation include filiforms and followers, metal sounds, balloon dilators, catheters of increasing size, introduction of a Council catheter over a guidewire, and coaxial dilators of increasing size. These methods however are effective but expensive and use of them is limited in many third world countries. In this retrospective study, we report the feasibility, complication and long-term follow-up of the newly Nelaton based urethral dilation method following by self calibration plan as a single referral center experience. Method: We reviewed the records of 333 men with urethral stricture longer than 1 cm over a 16-year period between March 2001 to December 2018. In this method the straight flexi-tip guide-wire is introduced through the urethra and advanced under cystoscopic vision. This wire then was used to guide the dilatation after withdrawal of the cystoscope. The tip of well-lubricated Nelaton urethral catheters incised and then advanced gently over the guide-wire serially from the smallest to the largest appropriate sizes. The patients were followed up regularly after the dilatation 1, 3, 6, 12 months and then annually postoperatively with taking history, PVR and uroflowmetry and all underwent retrograde urethrography at the 6th and 12th months of follow-up. Result: The mean age of patients was 39.19±16.9 years old (10 to 86 years). The mean period of the follow-up was 3.6±1.1 years (range, 3 to 4.3 years). Success rate after first attempted was 58.5% and after two attempted was 77.7% in two years follow up. After one year 51 (15.3%), two years 23 (6.9%) and after three years 11 (3.3%) cases required continued self dilatation once a month. Conclusion: Guide wire-assisted urethral dilatation is shown to be acceptable, cost-effective, simple, safe and feasible techniques for urethral dilation. Our technique may be the choice manner in selected patients with short memberanous urethral stricture, because of decrease the risk of incontinency. AJCEU