The Prevalence of Clinical and Electrocardiographic Risk Factors of Cardiovascular Death Among On-duty Professional Firefighters.
The Prevalence of Clinical and Electrocardiographic Risk Factors of Cardiovascular Death Among On-duty Professional Firefighters.
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DOI:
10.1097/jcn.0000000000000165
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发表时间:
2015-09
期刊:
影响因子:
--
通讯作者:
Carey MG
中科院分区:
文献类型:
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作者:
Al-Zaiti SS;Carey MG
Firefighters have twice as many cardiovascular deaths as police officers and four times as many as emergency medical responders. The etiology for this high prevalence remains unknown. The electrocardiogram (ECG) is a widely used tool to screen populations at risk, but yet there are no available on-duty, high-resolution electrocardiographic (ECG) recordings. We sought to evaluate the prevalence of clinical and ECG risk factors among on-duty professional firefighters during 12-lead ECG holter monitoring and exercise stress testing. Firefighters were recruited from Surveying and Assessing Firefighters Fitness and ECG (SAFFE) study. This descriptive study recruited firefighters from 7 firehouses across Western New York area, who all completed on-duty, 24-hour Holter ECG monitoring and a standard exercise stress test. All analyses were completed by a reviewer blinded to all clinical data. 112 firefighters (age 44±8 years, mostly white males) completed the study. Even though all firefighters were in normal sinus rhythm, over half of them had at least one high risk ECG risk factor present, including abnormal sympathetic tone (elevated heart rate, 54%), abnormal repolarization (wide QRS-T angle, 25%), myocardial scaring (fragmented QRS, 24%), and myocardial ischemia (ST depression, 24%). In addition, most firefighters tolerated the treadmill exercise stress test well (metabolic equivalent tasks 11.8+2.5), however, almost one third had abnormal stress tests that require further evaluation to rule out subclinical coronary artery disease. Among on-duty professional firefighters, high risk ECG markers of fatal cardiac events and abnormal stress test results that warrant further evaluation are prevalent. Annual physical checkups with routine 12-lead ECG can identify those who might benefit from preventive cardiovascular services.