Different vasoreactivity of arterial bypass grafts versus native coronary arteries in response to acetylcholine.
Giancarlo PirozzoloAndreas SeitzValeria Martínez PereyraAnastasios AthanasiadisMarc AlbertUlrich F W FrankeRaffi BekeredjianUdo SechtemPeter OngPublished in: Clinical research in cardiology : official journal of the German Cardiac Society (2020)
Epicardial and microvascular coronary artery spasm are frequent findings in patients with ongoing or recurrent angina after CABG but no relevant stenosis. Vasoreactivity to acetylcholine is markedly different between LITA bypasses and native LAD arteries with vasoconstriction almost exclusively occurring in the LAD.