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- Dahm, S L, et al.
(författare)
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Charcoal as an airway isoflurane reflection filter
- 1998
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Ingår i: European Journal of Anaesthesiology. - : Ovid Technologies (Wolters Kluwer Health). - 1365-2346 .- 0265-0215. ; 15:2, s. 230-233
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Tidskriftsartikel (refereegranskat)abstract
- The isoflurane-saving and CO2-retaining effects of a charcoal filter were compared with a Siemens standard heat and moisture (HME) exchanger and an emptied specimen (dummy). Isoflurane was delivered during the inspiratory phase and consumption investigated at 10, 15 and 25 cycles min-1. The investigation was performed by ventilation with humidified air with a constant end-tidal CO2 and temperature. For a comparison, isoflurane was delivered in a conventional manner via the ventilator. The arrangement with a charcoal filter reduced the isoflurane consumption by a factor of 2.0-2.6, depending on ventilatory rate. Most of the saving was a result of the method of isoflurane delivery (factor 1.4-2.0), while adding the reflector gave a further reduction (factor 1.3-1.5). One circumstance that reduced the net efficiency of the charcoal filter was that it also reflected CO2; consequently, total minute ventilation had to be increased to maintain constant end-tidal CO2.
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- Hahn, RG
(författare)
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Ethanol monitoring of irrigating fluid absorption
- 1996
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Ingår i: European journal of anaesthesiology. - : Ovid Technologies (Wolters Kluwer Health). - 0265-0215 .- 1365-2346. ; 13:2, s. 102-115
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Tidskriftsartikel (refereegranskat)
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- Flordal, PA
(författare)
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Measurement of blood loss in clinical studies
- 1997
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Ingår i: European journal of anaesthesiology. Supplement. - : Ovid Technologies (Wolters Kluwer Health). - 0952-1941 .- 0265-0215. ; 14, s. 35-37
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Tidskriftsartikel (refereegranskat)
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