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Disaster Events and the Risk of Sudden Cardiac Death: A Washington State Investigation

Published online by Cambridge University Press:  28 June 2012

Laura S. Gold ,
Leslee B. Kane ,
Nona Sotoodehnia  and
Thomas Rea
Laura S. Gold*
Affiliation:
University of Washington School of Public Health and Community Medicine, Department of Epidemiology, Seattle, Washington, USA Division of Emergency Medical Services, Public Health Seattle and King County, Seattle, Washington, USA
Leslee B. Kane
Affiliation:
University of Washington School of Medicine, Department of Medicine, Seattle, Washington, USA
Nona Sotoodehnia
Affiliation:
University of Washington School of Medicine, Department of Medicine, Seattle, Washington, USA
Thomas Rea
Affiliation:
Division of Emergency Medical Services, Public Health Seattle and King County, Seattle, Washington, USA University of Washington School of Medicine, Department of Medicine, Seattle, Washington, USA
*
Laura Gold, MSPH 401 5th AvenueSuite 1200Seattle, WA 98104USA E-mail: goldl@u.washington.edu
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Abstract

Background:

Psychological distress following disaster events may increase the risk of sudden cardiac death. In 2001, the Nisqually earthquake and the 11 September terrorist attacks profoundly affected Washington state residents.

Hypothesis:

This research investigated the theory that the incidence of sudden cardiac death would increase following these disaster events.

Methods:

Death certificates were abstracted using a uniform case definition to determine the number of sudden cardiac deaths for the 48-hour and one week periods following the two disaster events. Sudden cardiac deaths from the corresponding 48-hour and one-week periods in the three weeks before the events, and the analogous periods in 1999 and 2000 were designated as control times. Using t-tests, the number of sudden cardiac deaths for the periods following the disaster events was compared to those of the control periods.

Results:

In total, 32 sudden cardiac deaths occurred in the four counties affected by the Nisqually earthquake during the 48 hours after the event, compared to an average of 22 ±3.5 (standard deviation) in the same counties during the control periods (p = 0.02). No difference was observed for the one week period (94 compared to 79.2 ±12.4,p = 0.28). No difference was observed in the number of sudden cardiac deaths in the 48-hours or one-week following the terrorist attacks compared to control periods.

Conclusions:

A local disaster caused by a naturally occurring hazard, but not a geographically remote human disaster, was associated with an increased risk of sudden cardiac death. A better understanding of the underlying mechanisms may have implications for prevention of sudden cardiac death.

Keywords

11 September 2001myocardial infarctionnatural disastersstresssudden cardiac deathterroristattacks
Type
Original Research
Information
Prehospital and Disaster Medicine , Volume 22 , Issue 4 , August 2007 , pp. 313 - 317
Copyright
Copyright © World Association for Disaster and Emergency Medicine 2007

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