MeSH definition : Abnormally rapid heartbeats caused by reentry circuit in or around the SINOATRIAL
NODE. It is characterized by sudden onset and offset episodes of tachycardia with
a HEART RATE of 100-150 beats per minute. The P wave is identical to the sinus P wave
but with a longer PR interval.;
Abnormally rapid heartbeats caused by reentry circuit in or around the SINOATRIAL
NODE. It is characterized by sudden onset and offset episodes of tachycardia with
a HEART RATE of 100-150 beats per minute. The P wave is identical to the sinus P wave
but with a longer PR interval.