[A 65-year-old man with wearable cardioverter/defibrillator early after acute myocardial infarction]
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Updated: Apr 4, 2026

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
Published on: June 12, 2021
F W Horlbeck1, G Nickenig, J O Schwab
1Medizinische Klinik II, Kardiologie, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Deutschland, fritz.horlbeck@ukb.uni-bonn.de.
Insights
A wearable cardioverter defibrillator (WCD) provided temporary protection for a high-risk myocardial infarction patient. The WCD successfully treated life-threatening arrhythmias, leading to the implantation of a permanent device.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Severe coronary artery disease and prior bypass graft surgery complicated an acute myocardial infarction.
- Initial percutaneous coronary intervention addressed the culprit lesion but left significant residual stenoses.
Observation:
- The patient presented with a high risk for lethal ventricular arrhythmias despite no immediate indication for an implantable cardioverter/defibrillator (ICD).
- A wearable cardioverter defibrillator (WCD) was initiated for temporary protection due to complex coronary anatomy.
Findings:
- The WCD successfully treated spontaneous ventricular tachycardia and fibrillation with high-voltage therapy 26 days post-MI.
- This event prompted the decision for secondary prevention ICD implantation.
Implications:
- Carefully selected post-MI patients may benefit from temporary WCD protection.
- WCDs offer a window for reevaluation of permanent ICD implantation based on ventricular function and arrhythmia occurrence.
Abstract:
A 65-year-old man with severe coronary artery disease and coronary artery bypass graft presented with an acute posterior ST-elevation myocardial infarction. Immediate percutaneous coronary intervention resulted in successful revascularisation of the culprit lesion (RCx) with several remaining coronary stenoses. Despite the reduced left ventricular ejection fraction, no primary prevention indication for an implantable cardioverter/defibrillator early after myocardial infarction existed. Due to the complex coronary anatomy with several remaining stenotic vessels we regarded the patient to be at a particularly high risk for lethal ventricular arrhythmias and provided him with a wearable cardioverter defibrillator (WCD). Twenty-six days later, he experienced spontaneous ventricular tachycardia and fibrillation which was successfully treated with high voltage therapy by the WCD. Subsequently, we decided to implant him an ICD following secondary prevention indication. Besides established indications for primary prevention ICD therapy, some patients early after myocardial infarction may be at a particularly high risk for sudden cardiac death. Temporary protection with a WCD in carefully selected patients can offer a safe opportunity for later reevaluation of permanent ICD implantation depending on the course of left ventricular ejection fraction and the occurrence of arrhythmia.
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