LaSala A F, Fieldman A
Chest. 1978 Jul;74(1):92-4. doi: 10.1378/chest.74.1.92.
Nonejection systolic and diastolic clicks appeared when a Swan-Ganz catheter was positioned in the proximal portion of the right pulmonary artery. The clicks disappeared on inflation of the catheter's balloon. Initial impressions included secondary prolapse of the mitral leaflets, an accentuated third heart sound, and the exposure of an occult opening snap. These high-frequency sounds are thought to be generated by the forward and backward movement of the catheter against either the proximal portion of the pulmonary artery or the right ventricular outflow tract or by a whipping action of the catheter itself.
当一根 Swan-Ganz 导管置于右肺动脉近端时，出现了非喷射性收缩期和舒张期喀喇音。在导管球囊充气时，喀喇音消失。最初的印象包括二尖瓣叶继发性脱垂、第三心音增强以及隐匿性开瓣音的出现。这些高频声音被认为是由导管相对于肺动脉近端或右心室流出道的前后移动，或者由导管本身的甩动作用产生的。
