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- R G Hahn, H Larsson, and T Ribbe.
- Department of Anaesthesiology, Huddinge University Hospital, Sweden.
- Anaesthesia. 1995 Apr 1; 50 (4): 327-31.
AbstractWe have designed an automatic detector system for noninvasive monitoring of irrigating fluid absorption during transurethral resection of the prostate. Ethanol, which is used as a tracer for the fluid, is measured in the expired breath of the patient. The breath ethanol monitor can be used both in the awake patient and during general anaesthesia. A lap-top computer controls the monitor and calculates the fluid absorption 1-3 times per min and uses the pattern of ethanol changes to indicate whether the fluid is being taken by the intra- and/or extravascular route. The monitor has been used in routine operations for one year. The interpretation of absorption routes was checked by control methods or by evaluation of the postoperative breath-ethanol curve. We found the indicated absorption to be correct in all resections with absorption large enough for the monitor to present an interpretation.
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