Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/131935
Title: The ECG "lead I sign" in cardiac disease - An indicator of coexisting obstructive pulmonary disease
Authors: Yip, J.W.
Chia, B.L. 
Tan, W.C. 
Keywords: "Lead I sign"
Cardiac and chronic obstructive pulmonary disease
Issue Date: Apr-1999
Source: Yip, J.W., Chia, B.L., Tan, W.C. (1999-04). The ECG "lead I sign" in cardiac disease - An indicator of coexisting obstructive pulmonary disease. Singapore Medical Journal 40 (4) : 281-283. ScholarBank@NUS Repository.
Abstract: Two patients with co-existing cardiac disease and chronic obstructive pulmonary disease are described. The first patient had Wolff-Parkinson-White syndrome and the second patient had extensive anterior Q wave myocardial infarction. In addition to the distinctive ECG patterns of their cardiac abnormalities, both patients also showed the "lead I sign" which is a highly specific marker of chronic obstructive pulmonary disease. These two patients suggest that even in the presence of cardiac disease, the diagnosis of chronic obstructive pulmonary disease should be strongly suspected when the "lead I sign" is present.
Source Title: Singapore Medical Journal
URI: http://scholarbank.nus.edu.sg/handle/10635/131935
ISSN: 00375675
Appears in Collections:Staff Publications

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