PATTERN OF CORONARY ARTERY DISEASE IN PATIENTS WITH LEFT BUNDLE BRANCH BLOCK IN ACUTE CORONARY SYNDROME

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Posted in Volume 15 - Number 4 Suppl

QURBAN ALI RAHU,MUHAMMAD TARIQ FARMAN, JAWAID AKBAR SIAL

ABSTRACT | Full Text PDF

OBJECTIVES: To determine the association of left bundle branch block with coronary artery disease. To determine the pattern and severity of coronary artery disease with left bundle branch block.

DESIGN: Prospective descriptive study.

PLACE AND DURATION:  Department of Adult cardiology, National Institute of Cardiovascular Diseases, Karachi. From October 2002 to September 2003.

PATIENTS AND METHODS: Fifty three adult patients of both sexes admitted at National Institute of Cardiovascular Disease, Karachi with acute coronary syndrome. Fifty three patients, who were admitted at National Institute of Cardiovascular Disease, with symptoms suggestive of acute coronary syndrome and having LBBB in their ECG, were collected randomly for study. Consent was taken from the patients, their relatives and treating physician. Patient were prepared for coronary angiography after initial stabilization and selective coronary angiography was done at cardiac cath lab of National Institute of Cardiovascular Disease. Interpretation of coronary angiograms was done by two independent observers regarding number of coronary arteries involved and distribution (pattern) of coronary artery disease. Data of all patients was collected on specially designed proforma and then analysed on SPSS 10.

RESULTS: Out of 53 patients, 31 (58%) were male and 22 (41.5%) were female. Mean age of patients was 45 years. Coronary artery disease (CAD) was present in 41 (77.3%) patients and 12 (22.6%) patients had normal coronary arteries. Frequency of Single vessel disease (SVD) was most common (n=18, 33.9%) as compare to double vessel disease (DVD) and triple vessel disease (TVD) which were 16.9% (DVD) and 26.4% (TVD) respectively. Left main coronary artery was not involved.

CONCLUSION: Presence of new LBBB is significantly associated with coronary artery disease. Presence of LBBB does not predict presence of multivessel disease or involvement of left main coronary artery.