Which physical exam findings are characteristic 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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Answer

An accentuated first heart sound of mitral valve closure may be present in 87% of cases. [4]  During paroxysms of tachycardia, cardiovascular examination may reveal a rapid heart rate. Absence of a rapid heart rate does not exclude LGL as a possible diagnosis, as the tachycardia of LGL is paroxysmal.


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