院外心肺機能停止例における救急現場心電図と病院到着時心電図の検討

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  • Electrocardiography in Out-of-hospital Cardiopulmonary Arrest at The Emergency Scene and Hospital.

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Electrocardiography in out-of-hospital cardiopulmonary arrest was recorded at the emergency scene from 1993 to 1999 in Nagaoka City, which encompasses 320km2 with a population of 202000. Of 871 consecutive cardiopulmonary arrests, electrocardiography was recorded in 797 cases (91.5%) at the emergency scene; 599 cases were classified as intrinsic disorder and the remainder extrinsic disorder. Electrocardiography in the intrinsic disorder showed ventricular fibrillation in 57 (9.5%), electromechanical dissociation in 124 (20.7%), and cardiac standstill in 418 (69.8%). The extrinsic disorder group showed ventricular fibrillation in 3 (1.5%), electromechanical dissociation in 45 (22.7%), and cardiac standstill in 150 (75.8%). Cardiopulmonary resuscitation was initiated by a bystander in 16.4% of intrinsic disorders and 22.2% of extrinsic disoreder. Ventricular fibrillation was therefore relatively rare in the overall population of out-of-hospital cardiopulmonary arrests in Japan. To save more of those undergoing out-of-hospital cardiopulmonary arrest, resuscitation using drugs by emergency life-saving technicians may be necessary at the emergency scene.

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