When the culprit lies outside the coronary artery: dual case report of coronary sinus of valsalva dissection presenting as STEMI.

ABSTRACT: Located sinus of Valsalva (SOV) dissection is a rare but critical condition that presents as inferior ST-segment elevation myocardial infarction (STEMI). We present two cases in which computed tomography angiography (CTA) was essential in identifying SOV dissection. In the first case, CTA confirmed a localized dissection of the right SOV. Surgical revascularization was delayed owing to initial diagnostic challenges and the family's hesitation, which ultimately led to a fatal outcome. In the second, intravascular ultrasound (IVUS) confirmed extrinsic compression of the right coronary artery (RCA), and following emergency stent implantation, coronary blood flow was restored, conservative treatment achieved a favorable clinical outcome. These cases highlight the pivotal role of early CTA when

SUBMITTER: Chen K 

PROVIDER: S-EPMC12497843 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature