Acetylcholine (ACh) rechallenge may be a novel method to improve detection of coexisting coronary spasm endotypes, and at the same time, assess the treatment response to nitrate-based therapies, a new ...

A heart attack, also known as a myocardial infarction, occurs when part of the heart muscle does not receive enough blood.

The presence of epicardial coronary spasm and increased microvascular resistance in patients with angina but without obstructive coronary artery disease is associated with an increased risk of major ...

Symptoms of Prinzmetal’s Angina: Also called cold-induced coronary spasm, it is a rare heart condition in which the coronary arteries suddenly clamp down, reducing blood flow to the heart. (Image: ...

A new study by Toho University has revealed that gamma-linolenic acid (GLA), a fatty acid commonly found in plant oils such as evening primrose and borage, can directly relax constricted coronary ...

Background Invasive coronary function testing (CFT) is indicated in patients with refractory angina with non-obstructed coronary arteries (ANOCA). Despite this, questions remain regarding patient ...

During pulsed field ablation (PFA) for atrial fibrillation (Afib or AF), the additional creation of mitral isthmus ablation lines often led to vasospasm of the neighboring left circumflex artery, ...

A team of researchers from Toho University has uncovered a potential new use for a naturally occurring compound, schisandrin A, found in the traditional Chinese medicinal plant Schisandra chinensis.