Two cases of non-intervention-related vascular intense spasm following stent implantation in the coronary artery

The clinical occurrence of non-intervention-related vascular spasm following coronary stenting is rare. In the present study, 2 cases are reported. One patient developed continuous spasms in the proximal segment of the left anterior descending (LAD) and left circumflex (LCX) arteries following LAD artery stenting. The second patient developed an intense spasm in the right coronary artery (RCA) following LAD artery stenting. Clinical course and prognosis are dangerous. The main treatment for this condition is a combination of repeated injections of nitroglycerin into the coronary artery and the administration of calcium antagonists. In the clinic, intervention-related vascular spasms are common in percutaneous coronary intervention (PCI) due to the mechanical stimulation caused by balloon dilatation or stent expansion. Injections of a vasodilator into the coronary artery are able to mitigate the spasms and the consequent prognosis is good.