Sustained Ventricular Tachycardia Presenting As Gastrointestinal (GI) Symptoms

TL;DR

This paper discusses a case where an implantable cardioverter-defibrillator was used to prevent sudden death from a dangerous heart rhythm.

Contribution

The paper presents a clinically significant case highlighting the use of ICDs for primary prevention of mortality from sustained ventricular arrhythmias.

Findings

Implantable cardioverter-defibrillators (ICDs) are effective for primary prevention in patients with low ejection fraction.

ICDs are also used for secondary prevention in patients with a history of ventricular tachycardia or fibrillation.

Identifying high-risk patients for ICD placement remains a key focus in clinical research.

Abstract

Ventricular arrhythmias (VAs) are among the most common cardiac rhythms seen among patients. Patients presenting with frequent, sustained ventricular tachycardia (VT) pose a dilemma for clinicians due to the constant risk of sudden cardiovascular compromise.

Ventricular tachycardia, which is commonly seen in patients with defects in cardiac anatomy, has been associated with an increased risk of sudden death. A previous myocardial scar from a previous myocardial infarction remains the most common cause of sustained monomorphic VT (SMVT) in patients with structural cardiac disease.

Studies have shown that implantable cardioverter-defibrillators (ICDs) can be used for primary prevention in patients with ischemic or nonischemic cardiomyopathy whose ejection fraction remains below 35% despite guideline-directed medical therapy. It can also be used for secondary prevention of sudden cardiac death in patients who have had a VT or ventricular fibrillation (VF). Identifying individuals at risk for developing deleterious VTs who will benefit from ICD placement for prevention has been the objective of many large studies in recent years. We present a case of clinical importance involving the use of ICD in the primary prevention of mortality from sustained ventricular arrhythmias.

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