探讨超声心动图在冠状静脉窦畸形引流诊断中的价值。

回顾性分析2例冠状静脉窦畸形引流患者的临床资料，并复习相关文献。

2例因阵发性室上速入院的患者，在腔内电生理检查术中，冠状静脉窦电极均难以到位，立即行冠状动脉造影延迟显像，结果示1例患者冠状静脉窦通过垂直静脉汇入右上腔静脉，另外1例则分别通过垂直静脉和心小静脉回流，最终汇入右心房。床旁超声心动图均提示冠状静脉窦开口处闭塞，胸骨上窝切面提示冠状静脉窦血液通过垂直静脉向上走行，经右上腔静脉最终汇入右心房。2例患者均为左侧旁路所参与的房室折返性心动过速，通过变换射频电极位置，射频消融成功。

射频消融术前完善相关影像学检查有助于排除心血管结构性异常，超声心动图在冠状静脉窦畸形引流诊断中具有较大优势。

To explore the diagnostic value of the echocardiography in coronary sinus malformation drainage.

Retrospective analysis of clinical data of 2 cases of patients with coronary sinus malformation drainage, who were referred to our center for ablation of the paroxysmal supraventricular tachycardia.

Of the 2 cases electrodes were all difficult to be reached at the designated position.Then the coronary angiography was performed.In one case, the coronary sinus flowed into the right precava by vertical veins.In the other case, coronary sinus returned respectively by vertical vein and small venous, and then flowed into right atrium.Bedside echocardiography showed that the two coronary sinus openings occlusion, coronary sinus went up line by vertical vein and then flowed into right atrium by right superior vena cava.All radiofrequency ablation of 2 cases were successfully.

Relevant imaging examinations before radiofrequency ablation are helpful to rule out structural abnormalities of the heart.Echocardiography has great advantages in the diagnosis of coronary sinus malformation drainage.