Postoperative Coronary Artery Spasm After Mitral Valve Replacement and Cox-Maze IV Procedure: A Case Report

Author:

Lang Qianlei,Li Chunyan,Qin Chaoyi,Meng Wei

Abstract

Background: Few cases have been reported about coronary artery spasm after a mitral valve replacement and concomitant Cox-Maze IV procedure. We report the case of an adult male who developed right coronary artery (RCA) spasm after a mitral valve replacement with tricuspid valve repair and Cox-Maze IV procedure. Case report: A 66-year-old male, complaining of progressive exertional shortness of breath, was diagnosed with severe mitral stenosis, moderate tricuspid regurgitation, complete right bundle branch block, and persistent atrial fibrillation (AF) in our clinic. The patient underwent elective mitral valve replacement, tricuspid valve repair, and Cox-Maze IV procedure. Four hours after surgery, a 12-lead electrocardiogram (ECG) showed progressive elevation of ST-segment in the avF and III leads and Troponin-T was over 7000 pg/mL. After one hour, Troponin-T increased to over 10000 pg/mL, and ECG still showed persisted ST-segment elevation in inferior leads. Emergent angiography was performed, and intra-coronary administration of nitroglycerin completely relieved the spasm. Conclusion: Potential risks of coronary injury after valvular surgery and Cox-Maze IV procedure need further aggressive investigation and postoperative ischemia should prompt an emergent coronary angiography to identify the cause and apply immediate therapy.

Publisher

Carden Jennings Publishing Co.

Subject

Cardiology and Cardiovascular Medicine,Surgery,General Medicine

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