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Changes in intravesical pressure during irrigating fluid absorption in transurethral prostatic surgery
R Hahn1, T Berlin, H Johansson
1Department of Anaesthesiology, Huddinge University Hospital, Sweden.
Urological Research
|January 1, 1988
Summary
During transurethral prostate resection, irrigating fluid absorption impacts intravesical pressure (IVP). Intravascular absorption prolongs IVP increase time, while extravascular absorption occurs at lower pressures.
Area of Science:
- Urology
- Surgical Physiology
Background:
- Transurethral resection of the prostate (TUR) involves irrigating fluid, with potential for absorption.
- Understanding fluid absorption dynamics is crucial for patient safety during TUR.
Purpose of the Study:
- To investigate the relationship between irrigating fluid absorption and intravesical pressure (IVP) changes during TUR.
- To differentiate between intravascular and extravascular absorption and their effects on IVP.
Main Methods:
- Continuous recording of intravesical pressure (IVP).
- Incremental volumetric measurements of irrigating fluid absorption during 37 TUR procedures.
- Monitoring peripheral blood for dilutional changes to indicate intravascular absorption.
Main Results:
- Intravascular absorption was linked to a prolonged time to increase IVP.
- An inverse relationship was observed between maximum IVP change and the rate of fluid absorption.
- Extravascular absorption occurred at a lower critical pressure but showed similar IVP parameter changes.
Conclusions:
- Irrigating fluid absorption significantly influences IVP dynamics during TUR.
- The type of absorption (intravascular vs. extravascular) affects the pressure response and absorption threshold.
- Monitoring IVP and fluid absorption is essential for managing TUR procedures safely.