Key result
Anti-thyroid therapy, anti-arrhythmics, and ablation resolve post-CABG electrical storm driven by untreated hyperthyroidism.
Why the study?
Electrical storm defined as repeated ventricular arrhythmia is a relatively rare but challenging clinical event.
Case Report (n=1)
Highlights the importance of managing thyroid function and utilizing a multidisciplinary approach in patients undergoing cardiac surgery who develop electrical storm.
Hypothesis-generating for hyperthyroidism screening in post-CABG storm; prospective studies needed before practice change.
An electrical storm, dened as repeated ventricular arrhythmia has been reported as a relatively rare but challenging event. We report a case of an electrical storm following coronary artery bypass grafting (CABG) surgery in a 49-year-old man with untreated hyperthyroidism. The patient underwent successful CABG surgery after being diagnosed with ST elevation myocardial infarction and three vessel disease of coronary artery. Six days after the operation, ventricular tachy-arrhythmias were continuously observed, and direct current cardioversions were performed more than 30 times over 24 hours. Based on laboratory test results, the patient had persistent hyperthyroidism, and we continued anti- thyroid therapy and anti-arrhythmic medication. Eventually, the patient was successfully treated with a second trial of catheter ablation. In conclusion, physicians must carefully manage thyroid function in patients undergoing cardiac surgery. We also recommend that cardiac surgery teams take a multidisciplinary perioperative approach to critical care for cardiac surgery.
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Lee et al. (2022) conducted a case report in Electrical storm following coronary artery bypass grafting in hyperthyroidism (n=1). Catheter ablation, anti-thyroid therapy, and anti-arrhythmic medication was evaluated. An electrical storm following CABG in a 49-year-old man with untreated hyperthyroidism was successfully treated with anti-thyroid therapy, anti-arrhythmic medication, and catheter ablation.
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