We studied whether the height of the irrigating fluid bags above the operating table and the capacity of the bladder influence intravesical pressure and fluid absorption during transurethral resection of the prostate (TURP) when evacuation is performed with Reuter’s trocar. For this purpose, the intravesical pressure was recorded continuously, and the fluid absorption was measured by the ethanol method during 30 TURP procedures. The bags were placed between 60 and 95 cm above the operating table, and the bladder capacity was measured before surgery started. The results show that the bladder capacity, but not the bag height, correlated with the intravesical pressure and the fluid absorption. Large-sized bladders were associated with lower pressures and smaller absorption. Rapid absorption ( > 30 ml/min) occurred at a maximum pressure of 2–3 kPa and a mean pressure of between 1 and 2 kPa. In conclusion, the size of the bladder is important to the intravesical pressure and to the fluid absorption during TURP when using the suprapubic trocar.

Keywords:
Bladder physiology, Irrigating fluid bags, height, Transurethral resection, prostate
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© 1996 S. Karger AG, Basel
1996
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