Exercise-Induced Sustained Ventricular Tachycardia without Structural Heart Disease: A Case Report

Darmadi, Michelle Audrey; Duval, A.J.; Khadraoui, Hanaa; Romero, Alberto N; Simon, Blanca; Watkowska, Justyna; Saint-Jacques, Henock

doi:10.12659/ajcr.928242

Cited by 1 publication

(1 citation statement)

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“…Although exercise-induced VT is not uncommon in patients with myocardial ischemia or structural heart disease, few published studies have described this arrhythmia in patients without these underlying conditions. A very recent case report described a 51-year-old woman without structural heart disease who presented with symptoms of mild chest discomfort and developed sustained VT during an exercise tolerance test[ 5 ]. However, to the best of our knowledge, our report is the first to describe transient VT as the cause of exercise-induced dizziness.…”

Section: Discussionmentioning

confidence: 99%

Transient ventricular arrhythmia as a rare cause of dizziness during exercise: A case report

Gao¹,

Wu²

2021

WJCC

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BACKGROUND Dizziness is a common symptom in adults and usually due to peripheral causes affecting semicircular canal function or central causes affecting the pons, medulla, or cerebellum. Arrhythmia is a recognized cause of dizziness in people with structural or ischemic heart disease. We report a case of exercise-induced transient ventricular tachycardia and dizziness in a man with no evidence of organic heart disease. CASE SUMMARY A 42-year-old man presented with a 6 mo history of transient exercise-induced dizziness and prodromal palpitations. The patient was otherwise asymptomatic. Physical examination, otoscopy, vestibular tests, cerebellar tests, laboratory investigations, and imaging investigations were all unremarkable. Twenty-four hour Holter monitoring revealed four episodes of transient ventricular tachycardia during exercise. The patient was started on metoprolol and subsequently underwent radiofrequency catheter ablation. The patient reported a full recovery and no dizziness during daily activities. These results were maintained at the 6 mo follow-up. CONCLUSION Ventricular tachycardia is an uncommon but potentially serious cause of dizziness. The outcome of this case illustrates the benefits of careful clinical examination and communication with specialized centers. High clinical suspicion of arrhythmia in a patient with dizziness merits consultation with a cardiologist and referral to a specialized center to ensure timely diagnosis and treatment.

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Section: Discussionmentioning

confidence: 99%