Durak Hüseyin, Çetin Mustafa, Emlek Nadir, Ergül Elif, Özyıldız Ali Gökhan, Yılmaz Ahmet Seyda, Duman Hakan, Koç Haldun, Öğütveren Muhammed Mürsel, Özsipahi Ahmet
Department of Cardiology, Faculty of Medicine, Recep Tayyip Erdoğan University, 53020, Rize, Turkey.
Heart Vessels. 2024 Mar;39(3):226-231. doi: 10.1007/s00380-023-02322-0. Epub 2023 Oct 5.
The identification of interatrial block (IAB) through electrocardiography (ECG) has been correlated with an elevated likelihood of developing atrial fibrillation (AF) and stroke. IAB is diagnosed by evaluating P-wave prolongation on a surface ECG. The presystolic wave (PSW) is an echocardiographic marker determined by pulse-wave examination of the aortic root during late diastole. As IAB and PSW share similar pathophysiological mechanisms, we speculated that PSW, as a component of the P wave, might be useful in predicting IAB. In the present study, we aimed to determine the relationship between PSW and IAB. Patients with pre-diagnosis of supraventricular tachycardia (SVT) on electrocardiography or rhythm Holter monitoring between January 2021 and December 2022 were included in the study. Surface 12-lead ECG and transthoracic echocardiography (TTE) were performed for the diagnosis of IAB and PSW. Patients were divided into two groups based on the presence of IAB, and PSW was compared between the groups. In total, 104 patients were enrolled in this study. IAB was diagnosed in 16 patients (15.3%) and PSW was detected in 33 patients (31.7%). The PSW was higher in the IAB ( +) group than in the IAB ( -) group (10 patients (71.4%) vs. 23 patients (32.4%), p = 0.008). PSW may be a useful tool for predicting IAB in patients with SVT. Further studies are needed to determine the clinical utility of PSW in the diagnosis and management of IAB.
通过心电图（ECG）识别心房传导阻滞（IAB）与发生心房颤动（AF）和中风的可能性增加相关。IAB通过评估体表心电图上的P波延长来诊断。收缩前期波（PSW）是一种超声心动图标志物，通过在舒张末期对主动脉根部进行脉冲波检查来确定。由于IAB和PSW具有相似的病理生理机制，我们推测PSW作为P波的一个组成部分，可能有助于预测IAB。在本研究中，我们旨在确定PSW与IAB之间的关系。纳入了2021年1月至2022年12月期间心电图或动态心电图监测预先诊断为室上性心动过速（SVT）的患者。进行体表12导联心电图和经胸超声心动图（TTE）以诊断IAB和PSW。根据是否存在IAB将患者分为两组，并比较两组之间的PSW。本研究共纳入104例患者。16例患者（15.3%）被诊断为IAB，33例患者（31.7%）检测到PSW。IAB（+）组的PSW高于IAB（-）组（10例患者（71.4%）对23例患者（32.4%），p = 0.008）。PSW可能是预测SVT患者IAB的有用工具。需要进一步研究以确定PSW在IAB诊断和管理中的临床应用价值。
