| Isolated left posterior fascicular block: a reliable marker for inferior myocardial infarction and associated severe coronary artery disease. | |
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MedLine Citation:
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PMID: 8443995 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The electrocardiographic (ECG) pattern of isolated left posterior fascicular block (LPFB) is a rare condition. It seems that true LPFB is often not recognized, whereas in cases of simple QRS axis of +60 degrees to +100 degrees in the frontal plane, the diagnosis of LPFB is made erroneously. Both facts rely on controversial and partially misleading opinions in the literature. Therefore, a retrospective and prospective study was performed in order to determine the prevalence of LPFB and to correlate its presence to the underlying disease. Retrospective study: Of a cohort of 830 patients referred in 1988 to a cardiologic laboratory for invasive investigation of certain or suspected coronary artery disease (CAD), 163 patients had an old inferior myocardial infarction (IMI). Nine patients (5.5%) showed the typical pattern of LPFB; eight of these had three-vessel disease. The diagnosis of IMI had been made only in one case before entry of the patient into the hospital, since LPFB generally masks IMI. Prospective study: 2502 ECGs were investigated, 1710 from a department of cardiology and 792 from two departments of internal medicine. Six LPFBs were detected (0.24%), all associated with IMI and four of them with three-vessel CAD. It is concluded that LPFB is a rare but clinically important intraventricular conduction disturbance. Its appearance is reliably connected with IMI and generally reflects severe three-vessel CAD, requiring invasive investigation. |
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Authors:
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F J Godat; M Gertsch |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical cardiology Volume: 16 ISSN: 0160-9289 ISO Abbreviation: Clin Cardiol Publication Date: 1993 Mar |
Date Detail:
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Created Date: 1993-04-05 Completed Date: 1993-04-05 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7903272 Medline TA: Clin Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 220-6 Citation Subset: IM |
Affiliation:
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Division of Cardiology, Medical University Clinic, Inselspital Bern, Switzerland. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Coronary Angiography Coronary Disease / diagnosis, etiology* Electrocardiography Female Heart Block / diagnosis, epidemiology*, etiology Humans Male Middle Aged Myocardial Infarction / complications*, diagnosis Prevalence Prospective Studies Retrospective Studies |
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