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October 6, 1999

Left Bundle-Branch Block and the ECG in Diagnosis of Acute Myocardial Infarction—Reply

Author Affiliations

Copyright 1999 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.1999

JAMA. 1999;282(13):1224-1225. doi:10-1001/pubs.JAMA-ISSN-0098-7484-282-13-jbk1006

In Reply: The 103 patients in our study included 65 with chest pain, 27 with acute pulmonary edema, and 11 with cardiac arrest. The sensitivity of the ECG algorithm was 6% in patients with chest pain, with a 95% confidence interval (CI) of 1% to 27%. The accuracy of this estimate is supported by the work of Kontos et al1 who found a similar estimate for the low sensitivity of the algorithm of Dr Sgarbossa and colleagues.