Key result
Percutaneous LITA side-branch embolization resolves recurrent angina and improves myocardial perfusion post-CABG.
Why the study?
Recurrent angina after CABG caused by an overgrown side branch of the grafted left internal thoracic artery is a clinical scenario requiring characterization and management.
Case Report (n=1)
Percutaneous embolization of an overgrown left ITA side branch can successfully resolve recurrent angina and improve myocardial perfusion in post-CABG patients.
May resolve recurrent post-CABG angina from overgrown ITA branches; hypothesis-generating and should not yet change practice.
We present a patient who developed recurrent angina after coronary artery bypass grafting (CABG). Myocardial single-photon emission computed tomography (SPECT) demonstrated deterioration in the myocardial perfusion, and coronary angiography revealed an overgrown side branch of the grafted left internal thoracic artery (ITA); otherwise, there were no significant changes compared with previous imaging studies obtained after the CABG. After percutaneous embolization of the grafted left ITA side branch, the angina was resolved and myocardial SPECT showed improved perfusion.
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Kim et al. (2014) conducted a case report in Recurrent angina after coronary artery bypass grafting (n=1). Percutaneous embolization of the overgrown left internal thoracic artery side branch was evaluated on Resolution of angina and improvement in myocardial perfusion. Percutaneous embolization of an overgrown left internal thoracic artery side branch successfully resolved recurrent angina and improved myocardial perfusion in a patient 5 years post-CABG.
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