Ethanol monitoring of irrigating fluid absorption in transurethral prostatic surgery.
The ethanol concentration in expired breath (EB-ethanol(A] was repeatedly measured in 50 patients undergoing transurethral prostatic surgery in which the irrigating fluid was 1.5% glycine + 2% ethanol in water. EB-ethanol(A) was compared at 10-min intervals to the serum sodium concentration, the serum glycine concentration, and the absorbed volume of irrigant. The EB-ethanol(A) was found to be related directly to the serum glycine concentration (R2 = 0.75) and, inversely, to changes in the serum sodium concentration (R2 = 0.81). The cumulative absorbed volume of irrigant could be predicted from a single EB-ethanol(A) reading at the end of each 10-min interval (R2 = 0.82); the reliability was improved by taking into account the absorption time (R2 = 0.89). Extravasation of irrigating fluid was indicated by a stable or increasing EB-ethanol(A) after the ethanol-tagged irrigant had been discontinued. Ethanol monitoring is a simple and inexpensive method of testing for the presence, and measuring the degree, of irrigant absorption in transurethral prostatic surgery.
Hahn
R G
RG
Department of Anesthesiology, Huddinge University Hospital, Sweden.
D000042:Absorption; D001944:Breath Tests; D000431:Ethanol / Q000032:analysis*; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D011468:Prostatectomy / Q000379:methods*; D007507:Therapeutic Irrigation / Q000009:adverse effects*
D000431:Ethanol