Szkopiec R L, Desser K B, Benchimol A, Sheasby C
Am J Cardiol. 1983 Mar 15;51(6):969-72. doi: 10.1016/s0002-9149(83)80175-1.
Phonocardiographic findings are reported in 19 patients with normally functioning Ionescu-Shiley prostheses in the mitral or aortic position. Opening clicks were recorded in all 8 patients with mitral prostheses at a mean second heart sound (A2) to opening click interval of 94 ms. In 9 subjects, apical systolic murmurs were found. All 11 patients with the prosthesis in the aortic position had systolic ejection murmurs. Opening clicks were observed in 8 patients with a mean Q wave to opening click interval of 125 ms; closing clicks were found in 9 of 11. No diastolic murmurs occurred in this group. These acoustic characteristics serve as a reference source for the noninvasive evaluation of the bovine pericardial prosthesis.
报告了19例二尖瓣或主动脉瓣位置植入Ionescu-Shiley人工瓣膜且功能正常患者的心音图检查结果。所有8例二尖瓣人工瓣膜患者均记录到开瓣音，平均第二心音（A2）至开瓣音间期为94毫秒。9例患者发现心尖收缩期杂音。所有11例主动脉瓣位置植入人工瓣膜的患者均有收缩期喷射性杂音。8例患者观察到开瓣音，平均Q波至开瓣音间期为125毫秒；11例中有9例发现闭瓣音。该组未出现舒张期杂音。这些声学特征可作为牛心包人工瓣膜无创评估的参考依据。
