Cai Weixun, Xu Siyi, Li Xiaodong
Department Director of ECG.
Department of ECG, Resident physician, Zhejiang Province People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P. R. China.
Medicine (Baltimore). 2020 Mar;99(13):e19264. doi: 10.1097/MD.0000000000019264.
We report an extremely rare case of atrial conduction block with unusual electrocardiogram (ECG) results, which has never been reported before. There are 2 types of atrial conduction block that result in atrial irregularities or complete atrial conduction block. The former is similar to other types of cardiac blocks such as sinus node to atrial block, atrial to ventricular block, or bundle branch blocks, which are characterized by 2 P waves at a specific frequency. This is due to the complete inner atrial block that results in the atrial muscle being divided into 2 parts without conduction between them so that each part has its rhythm generator. The objective of this report is to examine the cause of inner atrial conduction block and to promote awareness of this disorder.
An 81-year-old Chinese male patient was examined after complaining about chest discomfort, and it was found that he had atrial tachycardia; ECG results revealed a P wave loss at specific intervals (or P wave separation).
A diagnosis of P wave loss at specific intervals (or P wave separation) was made based on ECG results.
An ECG was performed on the patient OUTCOMES:: It was unclear whether this patient has atrial separation or a new type of atrial conduction block, but our results revealed that this case presents a novel type of atrial conduction block, which we named 'P wave block.'
The type of EKG shown in this case has never been reported. This EKG shows a new type of conduction block in the atrium, temporarily named as a new type of P wave block.
我们报告一例极为罕见的伴有异常心电图结果的心房传导阻滞病例，此前从未有过相关报道。导致心房节律不齐或完全性心房传导阻滞的心房传导阻滞有两种类型。前者类似于其他类型的心脏传导阻滞，如窦房结至心房阻滞、心房至心室阻滞或束支阻滞，其特征是在特定频率下出现两个P波。这是由于完全性心房内阻滞导致心房肌被分为两部分且它们之间无传导，从而使每部分都有自己的节律发生器。本报告的目的是探讨心房内传导阻滞的原因并提高对这种疾病的认识。
一名81岁的中国男性患者因主诉胸部不适接受检查，发现患有房性心动过速；心电图结果显示在特定间期出现P波缺失（或P波分离）。
根据心电图结果诊断为特定间期P波缺失（或P波分离）。
对患者进行了心电图检查。
尚不清楚该患者是存在心房分离还是一种新型的心房传导阻滞，但我们的结果显示该病例呈现出一种新型的心房传导阻滞，我们将其命名为“P波阻滞”。
本病例所示的心电图类型此前从未有过报道。这种心电图显示了心房内一种新型的传导阻滞，暂命名为新型P波阻滞。
