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A 3-Phase Time-Sensitive Model

Myron L. Weisfeldt, MD; Lance B. Becker, MD

JAMA. 2002;288:3035-3038.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Despite 40 years of cardiopulmonary resuscitation (CPR) therapies, overall survival rates after cardiac arrest remain poor. Recent data suggest that the death toll in the United States is greater than previously believed—possibly 450 000 sudden deaths each year—yet the average survival rate remains lower than 5%.¹ In contrast, the article by Cobb et al² in this issue of THE JOURNAL suggests a lower incidence rate, about 184 000 cardiac arrests per year, as well as a decreasing proportion of cardiac arrests with ventricular fibrillation (VF) as the first identified rhythm.

Current International Liaison Committee on Resuscitation (ILCOR) guidelines promulgate rhythm-based therapies during cardiac arrest.³ These well-known treatment algorithms are static in the sense that they do not consider the passage of time. For example, VF is treated uniformly (with immediate defibrillation) whether the duration is 1 minute or 15 minutes. When this approach is . . . [Full Text of this Article]

THE ELECTRICAL PHASE

Author Affiliations: Department of Medicine, Johns Hopkins University, Baltimore, Md (Dr Weisfeldt); and Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Ill (Dr Becker).

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