Recurrent ventricular tachycardia associated with gangrene

Area of Science:

• Cardiology
• Toxicology

Background:

• Ventricular tachycardia (VT) is commonly associated with myocardial ischemia, hypoxia, hypercarbia, hypokalemia, and digitalis toxicity.
• Identifying the etiology of VT is crucial for effective management and preventing adverse outcomes.

Observation:

• A case of recurrent ventricular tachycardia was observed in a patient with lower extremity gangrene.
• Standard causes for cardiac dysrhythmia were ruled out in this patient.

Findings:

• Ventricular tachycardia ceased and did not recur following the amputation of the gangrenous lower extremities.
• The resolution of VT post-amputation strongly implicates the gangrenous tissue as a potential source of the arrhythmia.

Implications:

• This case suggests a novel potential cause for ventricular tachycardia: toxic substances released from necrotic tissue.
• Further research into the specific toxins and mechanisms involved could lead to new diagnostic and therapeutic strategies for specific VT cases.