Related Experiment Videos
Double-lumen needle for percutaneous ureteral pressure-flow studies.
D H Epstein1, D W Hunter, C C Coleman
1Department of Radiology, University of Minnesota Hospital and Clinic, Minneapolis 55455.
Radiology
|August 1, 1989
Summary
A novel double-lumen needle allows continuous ureteral perfusion and intrarenal pressure monitoring in patients. This technique avoids interruptions, improving safety and ease for renal studies.
Area of Science:
- Nephrology
- Urology
- Medical Devices
Background:
- Ureteral perfusion studies require intrarenal pressure measurement, often necessitating interruptions.
- Current methods pose challenges for continuous monitoring and patient safety.
Purpose of the Study:
- To introduce and evaluate a double-lumen needle for simultaneous ureteral perfusion and intrarenal pressure monitoring.
- To assess the safety and efficacy of this new device in patients with native and transplanted kidneys.
Main Methods:
- A double-lumen needle was successfully placed in four patients.
- Simultaneous perfusion and pressure monitoring were performed.
- The device's usability and safety were evaluated.
Main Results:
- The double-lumen needle enabled continuous perfusion and pressure monitoring.
- The procedure maintained the safety and ease of a single needle.
- Successful application in both native and transplanted kidneys was demonstrated.
Conclusions:
- The double-lumen needle is a safe and effective tool for simultaneous ureteral perfusion and intrarenal pressure monitoring.
- This innovation simplifies renal studies by eliminating the need for intermittent interruptions.