gallop rhythm

1. 33 8% of the patients were revealed to have lowered respiratory sound at the pulmonary base. Occasionally, fine moist rales accompanied by the accentuation of pulmonic second sound ( P 2) or the diastolic gallop rhythm.
   23例（33.8%）患者肺底部呼吸音减低或少许细湿性口罗音伴有肺动脉第二音亢进或舒张期奔马律。

noun

1. cardiac rhythm characterized by the presence of an extra sound

   Synonym:    cantering rhythm