尤其是在儿童中，通常表现为无痛性软组织肿块，当做瓦尔·萨尔瓦动作或者姿势改变时，可以发生形态的改变。
It often presents as a soft painless mass, especially in pediatric populations and its appearance may sometimes be altered by position and when performing the Valsalva maneuver.
可能导致持续性杂音的其他病症有：瓦尔·萨尔瓦动脉瘤的窦破裂，近端冠状动脉狭窄，及肺动脉支狭窄。
Other conditions that may cause continuous murmurs include ruptured aneurysm of a sinus of Valsalva, proximal coronary artery stenosis, and pulmonary artery branch stenosis.
嘱有心脏病史病人排便时呼气(瓦尔·萨尔瓦操作会导致心脏停博)。
Instruct clients with history of cardiovascular disease to exhale during defecation (Valsalva maneuver can cause cardiac arrest).
嘱有心脏病史病人排便时呼气(瓦尔·萨尔瓦操作会导致心脏停博)。
Instruct clients with history of cardiovascular disease to exhale during defecation (Valsalva maneuver can cause cardiac arrest).
应用推荐