Pansystolic murmurs begin with S1, extend throughout systole, and are characteristically uniform in intensity Systolic ejection murmurs have been likened to the chug of a steam engine laboring up a hill, while pansystolic murmurs have been likened to the
Pansystolic murmurs begin with S1, extend throughout systole, and are characteristically uniform in intensity Systolic ejection murmurs have been likened to the chug of a steam engine laboring up a hill, while pansystolic murmurs have been likened to the
全收缩期杂音与S1同时开始，贯穿整个收缩期，它被比作蒸汽机爬山时发出的“嘎嚓”声，全收缩期杂音则被比作蒸气机气笛的尖啸声。