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CASE REPORT
Year : 2017  |  Volume : 16  |  Issue : 1  |  Page : 78-80

Adenosine stress induced left bundle branch block during technetium-99m tetrofosmin myocardial perfusion imaging


Department of Nuclear Medicine, PGIMER, Chandigarh, India

Correspondence Address:
Ashwani Sood
Department of Nuclear Medicine, PGIMER, Chandigarh - 160 012
India
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DOI: 10.4103/1450-1147.181157

PMID: 28217027

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The occurrence of left bundle branch block (LBBB) in electrocardiogram during exercise testing is a relatively rare finding. The incidence of LBBB during exercise testing ranges from 0.5% to 1.1%. The mechanism of exercise-induced LBBB (EI-LBBB) is poorly understood, but ischemia is a proposed etiology. Stress myocardial perfusion imaging (MPI) can be useful in patients with EI-LBBB to rule out coronary artery disease. Adenosine vasodilator stress is the preferred mode of stress in patients with LBBB for performing stress-MPI. Here we present an interesting case of adenosine-induced LBBB during stress-MPI in a 67-year-old female patient with normal coronary angiography.


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