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主动脉窦(ASC)由无冠窦、左冠窦和右冠窦组成,位于心脏的中心部位,与心脏各腔室在解剖上发生联系。在ASC内消融根治的快速性心律失常的解剖基质有两方面:直接起源于心室或心房肌与ASC之间的心肌纤维连接;源于邻近组织的心内膜深处或心外膜。在无冠窦消融治疗局灶性房性心动过速的报道较多;而主动脉三个窦内消融治疗室性早搏/特发性室性心动过速有报道,而以左冠窦多见,上述心律失常发生时的心电图和电生理往往有其特征性。消融时应避免损伤冠状动脉。
The aortic sinus (ASC) consists of a non-coronary sinus, a left coronary sinus, and a right coronary sinus, located in the center of the heart and anatomically linked to the chambers of the heart. Anatomical stroma of ablation-tachyarrhythmal arrhythmias within the ASC is twofold: myocardial fibrosis either directly originating from the ventricular or atrial muscle and the ASC; deep in the endocardium or epicardium from adjacent tissues. In the absence of coronary sinus ablation of focal atrial tachycardia reported more; and aortic three sinus ablation of ventricular premature beats / idiopathic ventricular tachycardia have been reported, and the more common to the left coronary sinus , The above arrhythmia ECG and electrophysiology often have their own characteristics. Ablation should avoid damage to the coronary arteries.