A novel technique to detect total occlusion in the right coronary artery using retrograde flow by transthoracic Doppler echocardiography
A novel technique to detect total occlusion in the right coronary artery using retrograde flow by transthoracic Doppler echocardiography
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DOI：
10.1016/j.echo.2004.11.018
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发表时间：
2005-07-01
影响因子：
6.5
通讯作者：
Yoshikawa, J
中科院分区：
文献类型：
--
作者：
Otsuka, R;Watanabe, H;Yoshikawa, J
背景：我们假设通过经胸多普勒超声心动图（TTDE）检测右冠状动脉远端（d-RCA）和下隔支（ISB）的逆流将有助于无创诊断闭塞的右冠状动脉（RCA）。方法。对 129 名患者进行了冠状动脉造影和 TTDE。 d-RCA 和 ISB 中的顺行流分别定义为后沟中从基部到顶点的方向以及下隔中从前部到下部的方向。逆行流被定义为反向流动的结果。通过 TTDE 获得 18 名 RCA 闭塞患者中的 14 名患者 (d-RCA:11, ISB:3) 的逆行血流。识别闭塞RCA的敏感性和特异性分别为100%和97.8%。结论。使用 TTDE 检测 d-RCA 和 ISB 中的逆流是无创诊断 RCA 闭塞的有用方法。
Background: We hypothesized that detection of reverse flow in the distal right coronary artery (d-RCA) and the inferior septal branches (ISB) by transthoracic Doppler echocardiography (TTDE) would be useful for noninvasive diagnosis of the occluded right coronary artery (RCA).Methods. Coronary angiography and TTDE were performed on 129 patients. Antegrade flows in the d-RCA and the ISB were defined as directions from the base to the apex in the posterior sulcus and from anterior to inferior in the inferior septum, respectively. Retrograde flow was defined as an inverse direction.Results. Retrograde flow was obtained by TTDE in 14 patients (d-RCA:11, ISB:3) of 18 patients with occluded RCA. The sensitivity and the specificity for identification of occluded RCA were 100% and 97.8%, respectively.Conclusion. Detection of reverse flow in the d-RCA and the ISB using TTDE is a useful method for the noninvasive diagnosis of occluded RCA.