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Semirigid ureteroscopy: a new genre
1Department of Urology, Massachusetts General Hospital, Boston.
The Journal of Urology
|June 1, 1989
Summary
A novel semirigid ureteroscope allows atraumatic ureteral examination and laser lithotripsy without dilation. This innovative device shows high success rates in female patients and potential for male patients, expanding treatment options for ureteral calculi.
Area of Science:
- Urology
- Medical Devices
- Endourology
Background:
- Ureteral access and visualization are critical for treating ureteral calculi.
- Traditional rigid and flexible ureteroscopes have limitations in handling and access.
- Semirigid instruments offer a hybrid approach to overcome these challenges.
Observation:
- A new semirigid ureteroscope (7.2F-11.9F) was evaluated in 50 patients.
- The device features two 2.1F channels for various instruments and 2 inches of tip flexure.
- Successful insertion was achieved in 26/27 female and 14/23 male patients without prior dilation.
Findings:
- The semirigid ureteroscope facilitated laser fragmentation of ureteral calculi in most female and some male patients.
- It proved effective in navigating strictured or impassable ureters and placing guide wires.
- Atraumatic examination of the entire ureter was possible in the majority of female and some male patients.
Implications:
- This semirigid ureteroscope expands indications for laser lithotripsy.
- It offers improved handling and visualization for ureteral stone treatment.
- The device enhances the facility and accessibility of minimally invasive urological procedures.