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CC BY-NC-ND 4.0 · World J Nucl Med 2017; 16(01): 78-80
DOI: 10.4103/1450-1147.181157
Case report

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

Mohan Jayanthi
Department of Nuclear Medicine, PGIMER, Chandigarh
,
Arun Sasikumar
Department of Nuclear Medicine, PGIMER, Chandigarh
,
Arun Kumar Gorla
Department of Nuclear Medicine, PGIMER, Chandigarh
,
Ashwani Sood
Department of Nuclear Medicine, PGIMER, Chandigarh
,
Anish Bhattacharya
Department of Nuclear Medicine, PGIMER, Chandigarh
,
Bhagwant Mittal
Department of Nuclear Medicine, PGIMER, Chandigarh
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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.

Keywords

Adenosine-induced left bundle branch block - left bundle branch block - myocardial perfusion imaging - tetrofosmin


Publication History

Article published online:
18 May 2022

© 2017. Sociedade Brasileira de Neurocirurgia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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