Role of Flexible Cystoscopy in Laparoscopic Stone Surgery

Sponsor

Seoul National University Hospital (Other)

Overall Status

Completed

CT.gov ID

NCT01277198

Collaborator

(none)

Enrollment

Location

Duration (Months)

1.2

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

Authors want to investigate the usefulness of flexible cystoscopy in performing laparoscopic pyelolithotomies and ureterolithotomies by comparing operative results of a single surgeon's experience.

Condition or Disease	Intervention/Treatment	Phase
Kidney Calculi; Ureteral Calculi

Detailed Description

Previous trials to increase stone clearance rates have been recently reached using flexible equipment in laparoscopic surgery, however, it is not clear whether using flexible equipment is really helpful in performing pyelolithotomies and the clearance rates using flexible equipment varies 71% to 100%. Therefore, authors plan to investigate the usefulness of flexible cystoscopy in performing laparoscopic pyelolithotomies and ureterolithotomies by comparing operative results of a single surgeon's experience.

Study Design

Study Type:

Observational

Actual Enrollment :

80 participants

Observational Model:

Case-Control

Time Perspective:

Retrospective

Official Title:

The Role of Flexible Cystoscopy in Laparoscopic Stone Surgery: a Single Surgeon Experience

Study Start Date :

Jan 1, 2005

Actual Primary Completion Date :

Aug 1, 2010

Actual Study Completion Date :

Aug 1, 2010

Arms and Interventions

Arm	Intervention/Treatment
surgery without using a flexible cystoscopy surgery without using a flexible cystoscopy: patients who did not undergo a flexible cystoscopy during laparoscopic stone surgery
surgery with using a flexible cystoscopy surgery with using a flexible cystoscopy: patients who underwent a flexible cystoscopy during laparoscopic stone surgery

Outcome Measures

Primary Outcome Measures

the presence of residual stones [intravenous pyelogram at 12 weeks postoperatively]
We judged the success when there is no residual stone in the intravenous pyelogram at 12 weeks postoperatively

Secondary Outcome Measures

stone numbers and sizes, surgical approach, insertion of a DJ ureteral catheter, and use of a flexible cystoscopy, etc [Retrospective review of data]
Preoperative evaluation included a complete history, physical examination, and imaging work-up such as X-ray or computed tomography (CT). Mean preoperative stone numbers and sizes were evaluated and we also evaluated operative information such as surgical approach, insertion of a DJ ureteral catheter, and use of a flexible cystoscopy

Eligibility Criteria

Criteria

Ages Eligible for Study:

20 Years to 60 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Inclusion Criteria:

patients with complex renal stones and large or impacted ureter stones
patients who underwent laparoscopic pyelolithotomies with concomitant calyceal stone removal or ureterolithotomy using a flexible cystoscopy or not