AVNRT risk factors

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Underlying structural heart disease is generally absent. Often, there is no precipitant of an episode. Risk factors for precipitation of AVNRT include:

• Alcohol
• Caffeine
• Chocolate
• Hyperthyroidism
• Hypokalemia
• Hypomagnesemia
• Myocardial ischemia
• Psychological stress
• Tea
• Theobromine in foods like tea, coffee and chocolate
• Theophylline