| Clinical and angiographic importance of right bundle branch block in the setting of acute anterior myocardial infarction. | |
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MedLine Citation:
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PMID: 18400632 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To investigate functional status of patients (Killip class), left ventricular contractility, angiographic anatomy and severity of coronary lesions in patients with and without right bundle branch block (RBBB) in the setting of anterior myocardial infarction (MI). METHODS: Patients who admitted to coronary care unit with the diagnosis of acute anterior MI between 1999 and 2005 were retrospectively searched from our database. Out of 792 patients, 37 had RBBB (RBBB group) either at admission or in the course of anterior MI. Forty patients who developed no intraventricular conduction defect during the course of anterior MI with the same demographic characteristics were selected as the control group. RESULTS: Out of 37 patients, 30 had RBBB on admission and 7 developed RBBB in the course of acute MI. Left anterior descending artery (LAD) proximal lesion was more commonly detected in the RBBB group [23 (62.2%) vs. 11 (27.5%) patients, p=0.003]. Left ventricular ejection fraction was lower (33.0+/-4.2% vs 36.7+/-4.9%, p=0.003) and end-systolic volume was higher (84.1+/-24.9 ml vs 74.6+/-22.0 ml, p=0.012) in patients with RBBB. Number of patients with high Killip grade (III and IV) was more in the RBBB group [7 (18.9%) vs 3 (7.5%), RR: 1.75, %95 CI 0.92-3.32, p=0.14], and number of patients with Killip grade I was more in the control group [34 (85.0%) vs 22 (59.5%), p=0.012]. Besides mean Killip class was higher in the RBBB group (1.65+/-0.90 vs 1.25+/-0.67, p=0.03). Three patients (8.1%) in the RBBB group and 2 patients (5.0%) in the control group died during hospitalization (p=0.67). CONCLUSION: Left ventricular ejection fraction decreases and Killip grade increases in case of RBBB in the setting of acute anterior MI. Culprit lesion in patients with RBBB is more commonly a LAD proximal lesion and threatened myocardial tissue is larger in patients with RBBB. |
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Authors:
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Uğur Arslan; Serhat Balcioğlu; Yusuf Tavil; Murat Ozdemir; Atiye Cengel |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Anadolu kardiyoloji dergisi : AKD = the Anatolian journal of cardiology Volume: 8 ISSN: 1308-0032 ISO Abbreviation: Anadolu Kardiyol Derg Publication Date: 2008 Apr |
Date Detail:
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Created Date: 2008-04-10 Completed Date: 2008-06-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101095069 Medline TA: Anadolu Kardiyol Derg Country: Turkey |
Other Details:
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Languages: eng Pagination: 123-7 Citation Subset: IM |
Affiliation:
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Department of Cardiology, Faculty of Medicine, Gazi University, Ankara, Turkey. ugurarslan5@yahoo.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Bundle-Branch Block
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complications,
pathology,
physiopathology*,
radiography Case-Control Studies Coronary Angiography Female Humans Male Middle Aged Myocardial Infarction / complications, pathology, physiopathology*, radiography Retrospective Studies Severity of Illness Index Stroke Volume Ventricular Dysfunction, Left / complications, pathology, physiopathology*, radiography |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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