Pylman M L, Teiken P J
Blanchfield Army Community Hospital, Fort Campbell, KY 42223, USA.
Mil Med. 1997 Jun;162(6):405-6.
Field anesthesia can have special considerations because of the possibly primitive conditions. The drawover vaporizer has enjoyed increased interest because of the ability to deliver an anesthetic without electricity or compressed gases. Sevoflurane is a potentially attractive field agent because of its relative insolubility in blood, giving more rapid control over anesthetic depth. We investigated the output of sevoflurane from the drawover vaporizer to determine if the concentration is in the necessary range for clinical use. We found that the output of the Ohmeda PAC drawover vaporizer delivered between 0.1 and 3.6% (v/v) sevoflurane. Therefore, the drawover vaporizer should be able to deliver a sufficient concentration of sevoflurane for anesthetic maintenance; however, this concentration appears inadequate for routine inhalation induction.
由于现场条件可能较为简陋，现场麻醉可能需要特殊考虑。由于无需电力或压缩气体即可输送麻醉剂，连续气流挥发罐越来越受到关注。七氟醚因其在血液中相对不溶性，能更快速地控制麻醉深度，是一种潜在有吸引力的现场麻醉剂。我们研究了连续气流挥发罐中七氟醚的输出量，以确定其浓度是否在临床使用所需范围内。我们发现，Ohmeda PAC连续气流挥发罐输出的七氟醚浓度在0.1%至3.6%（v/v）之间。因此，连续气流挥发罐应该能够输送足够浓度的七氟醚用于麻醉维持；然而，这个浓度似乎不足以用于常规吸入诱导。
