What are the signs and symptoms of Lown-Ganong-Levine syndrome (LGL)?

Updated: Dec 09, 2020
  • Author: Daniel M Beyerbach, MD, PhD; Chief Editor: Jose M Dizon, MD  more...
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Symptoms of paroxysmal tachycardia must be elicited, although they may be asymptomatic. [1] Manifestations of such paroxysms include palpitations, lightheadedness, and shortness of breath. In cases of underlying structural heart disease or coronary artery disease, episodes of tachycardia may induce cardiac stress and produce symptoms of chest pain or possibly of hypotension or other hemodynamic instability. At higher ventricular rates, syncope may occur, particularly if ventricular tachycardia or ventricular fibrillation are initiated.

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