犬のモデルで蘇生中の換気の観察
N C Chandra1, K G Gruben, J E Tsitlik
1Peter Belfer Laboratory for Myocardial Research, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, MD.
Circulation
|December 1, 1994
まとめ
心肺蘇生 (CPR) 中の胸部圧縮だけで,犬では4分以上十分な酸素レベルを維持することができます. この発見は,目撃心停止の際に換気を遅らせることが可能であることを示唆しています.
科学分野:
- 心血管科学の研究について
- 緊急医療 緊急医療
- 生理学 生理学とは
背景:
- 感染の恐怖は,心肺蘇生 (CPR) を行うから非一般人を抑止します.
- CPR中の即時換気は,標準的ですが,潜在的に延期可能なコンポーネントです.
研究 の 目的:
- CPR中に胸部圧迫だけで十分なガス交換の持続時間を評価する.
- 目撃された心停止で即時換気を延期できるかどうかを判断する.
主な方法:
- 大動脈の圧力と動脈の血液ガスは,心房細動中に犬のモデルでモニタリングされました.
- 胸部圧縮は,最大4分間,換気なしで80-100/分で行われました.
- 換気パラメータは,胸部圧縮フェーズで測定されました.
主要な成果:
- 動脈の酸素飽和度は,胸部圧縮のみで4分以上90%以上にとどまった.
- この期間中,動脈のpHとPCO2レベルは許容範囲内に留まっていました.
- 大動脈の圧力は著しく低下したが,検出可能であった.
結論:
- 胸部圧縮だけでは,犬のモデルでは少なくとも4分間十分なガス交換を維持できます.
- 目撃された心停止の際に即時換気が必要な場合は,再評価を義務付けます.
- 発見は,換気タイミングに関するCPRプロトコルへの潜在的な変更を支持しています.
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