ハンドオン・デフィブリレーション: バイフェーシック・エクステンダー・デフィブリレーションの際に,患者と直接接触する救助隊員を通過する電気電流の分析
Michael S Lloyd1, Brian Heeke, Paul F Walter
1Emory University Hospital, Cardiac Electrophysiology Department, 1364 Clifton Rd NE, Suite F424, Atlanta, GA 30322, USA. michael.lloyd@emoryhealthcare.org
Circulation
|May 7, 2008
まとめ
脱細動中に胸圧力を施す救助隊員は,安全基準を下回る,最小限の漏れ電流を経験しました. これは,再蘇生結果を改善するために,絶え間ない圧力をサポートします.
科学分野:
- 心臓病学 心臓病学
- 緊急医療 緊急医療
- バイオメディカルエンジニアリング
背景:
- 胸部圧迫の中断は,心停止時の蘇生効果を低下させます.
- ハンドオフ期間は,除細動のために必要であり,圧縮の避けられないパウスを生み出します.
- デフィブリレーション中の患者と接触する救助隊員の安全性は,十分に確立されていません.
研究 の 目的:
- 双相外部除細動の間,胸部圧力を維持する救助隊員の安全性を評価する.
- 脱線時の漏れ電圧と,脱線時の救助隊員への電流被曝を定量化するために.
主な方法:
- 二相ショックを受けた43人の患者の胸部圧縮中に模擬救助員で測定された漏れ電圧と電流.
- 最悪のケースのリターン電流経路をシミュレートし,救助者の大腿電極を患者の電極に接続した.
- ショックに対する救助者の認識を評価し,ピークポテンシャル差と平均漏れ電流を測定した.
主要な成果:
- 救助隊には衝撃が感じられなかった.
- ピークポテンシャル差は0.28~14V (平均5.8V) であった.
- 平均漏れ電流は283マイクロアで,推奨安全限界を下回った.
結論:
- デフィブリレーション中に胸部圧力を施す救助隊員は,漏れ電流の低い安全レベルに曝されています.
- デフィブリレーション中の絶え間ない胸部圧迫は実現可能である.
- この実践は, défibrillation と心脳蘇生の有効性を向上させる可能性があります.
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