TY - JOUR
T1 - A proposal of a new index of coronary microvascular resistance based on the duration of the transient ECG repolarization changes during coronary angiography
AU - Madias, John E.
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Nature B.V.
PY - 2023
Y1 - 2023
N2 - Coronary microvascular dysfunction is present in the majority of patients with acute coronary syndromes, myocardial infarction with nonobstructive coronary arteries, and takotsubo syndrome. Assessment of the coronary microcirculation via a noninvasive index of coronary microvascular resistance (CMVR) based on coronary angiography is currently employed by many laboratories (AngioMVR). A proposal is presented herein of a new index of CMVR, based on the duration of the transient ECG repolarization changes during coronary angiography (ECGMVR), well known to occur in patients with and without coronary artery disease, and specific for the left and right coronary artery contrast injections, which have been widely documented, starting 60 years ago. It will be imperative for the index of ECGMVR to be correlated with the currently implemented AngioMVR and the TIMI frame count index, for the validation of the ECGMVR.
AB - Coronary microvascular dysfunction is present in the majority of patients with acute coronary syndromes, myocardial infarction with nonobstructive coronary arteries, and takotsubo syndrome. Assessment of the coronary microcirculation via a noninvasive index of coronary microvascular resistance (CMVR) based on coronary angiography is currently employed by many laboratories (AngioMVR). A proposal is presented herein of a new index of CMVR, based on the duration of the transient ECG repolarization changes during coronary angiography (ECGMVR), well known to occur in patients with and without coronary artery disease, and specific for the left and right coronary artery contrast injections, which have been widely documented, starting 60 years ago. It will be imperative for the index of ECGMVR to be correlated with the currently implemented AngioMVR and the TIMI frame count index, for the validation of the ECGMVR.
KW - Acute coronary syndromes
KW - Coronary microvascular resistence
KW - Coronary vascular resistance
KW - Electrocardiogram
KW - Electrocardiogram repolarization changes
KW - Index of coronary vascular resistance
KW - Myocardial infarction with nonobstructive coronary arteries
KW - Takotsubo syndrome
UR - http://www.scopus.com/inward/record.url?scp=85145704853&partnerID=8YFLogxK
U2 - 10.1007/s10554-022-02791-w
DO - 10.1007/s10554-022-02791-w
M3 - Article
C2 - 36607470
AN - SCOPUS:85145704853
SN - 1569-5794
JO - International Journal of Cardiovascular Imaging
JF - International Journal of Cardiovascular Imaging
ER -