Acute coronary artery stent thrombosis caused by a spasm: A case report

Core Tip

Core Tip: Acute stent thrombosis (AST) is a serious complication of percutaneous coronary intervention (PCI). The causes of AST include the use of stents of inappropriate diameters, multiple overlapping stents, or excessively long stents; incomplete stent expansion; poor stent adhesion; incomplete coverage of dissection; formation of thrombosis or intramural hematomas; vascular injury secondary to intraoperative mechanical manipulation; insufficient dose administration of postoperative antiplatelet medications; and resistance to antiplatelet drugs. Cases of AST secondary to coronary artery spasms are rare. We report a case of AST in a 52-year-old man possibly caused by a coronary artery spasm. Coronary spasms can cause both AMI and AST. For patients with coronary spasms during PCI, diltiazem administration could reduce spasms and prevent future AST.