Successful recognition and management of life-threatening multivessel coronary artery vasospasm after conventional coronary artery bypass grafting.

Abstract

Background: The occurrence of native coronary artery vasospasm after coronary artery bypass grafting (CABG) is a rare phenomenon with potentially catastrophic outcomes. The absence of a clear understanding of contributing factors and an undetermined occurrence rate underscores the importance of coronary angiography as the primary diagnostic tool for this condition. Case Presentation: We present the case of a 70-year-old Asian male with a 14-year history of diabetes mellitus, seven years of Giant Cell Arteritis (GCA), and Ischemic Heart Disease (IHD). The patient experienced severe native coronary artery vasospasm following conventional CABG, prompting intervention through coronary angiography. Management & Results: The patient underwent coronary angiography, revealing multivessel coronary artery vasospasm. Intracoronary administration of nitroglycerin and diltiazem was initiated promptly. The swift identification and treatment of vasospasm were instrumental in preventing severe myocardial injury. Conclusion: Coronary artery vasospasm post-CABG poses a significant threat, emphasizing the need for early identification and intervention. The successful management presented in this case underscores the importance of timely recognition and the administration of vasodilators in mitigating potential myocardial damage. This report contributes to the growing understanding of this rare but critical complication, highlighting the necessity for vigilance in post-CABG patient care.