Bidirectional Ventricular Tachycardia (BVT) • LITFL • ECG Library
2024年10月8日 · Bidirectional ventricular tachycardia (BVT) is a rare ventricular dysrhythmia characterised by a beat-to-beat alternation of the frontal QRS axis. It is most commonly associated with severe digoxin toxicity
Bidirectional Ventricular Tachycardia: Challenges and Solutions
Bidirectional ventricular tachycardia (BiVT) is a rare form of ventricular tachycardia that manifests on surface electrocardiogram by dual QRS morphologies alternating on a beat-to-beat basis. It was first reported in the 1920s as a complication of ...
Bidirectional Ventricular Tachycardia | Journal of the American …
Bidirectional ventricular tachycardia is a hallmark of severe digitalis toxicity. The 12-lead electrocardiogram obtained from a 54-year-old man with acute heart failure and digitoxin intoxication shows typical features of this potentially life-threatening arrhythmia: a regular right bundle-branch block tachycardia with relatively narrow QRS ...
Bidirectional Ventricular Tachycardia - Cardio Guide
2019年10月19日 · Rare form of ventricular tachycardia. Characterized as alternating axis and morphology of VT; Mechanism of bidirectional VT is believed to be the result of two different sites in the distal His Purkinje system or ventricle where delayed afterdepolarization (DAD) develops at different heart rate thresholds.
双向性室性心动过速 - 百度百科
双向性 室性心动过速 （BVT）是一种少见而严重的单形性室性心动过速，发作时同一导联出现两种形态相反的宽大畸形的QRS波按顺序交替出现。 大多数室性心动过速为阵发性的，在室性心动过速发作时，患者可出现心悸、胸闷、胸痛、黑蒙、晕厥。 常发生于洋地黄中毒，尤其易发生于严重心 肌病 变及较严重的 心肌缺血 、缺氧和心脏扩大等情况下。 此外，也见于乌头碱中毒、金刚烷胺中毒、低钾性 周期性麻痹 患者，偶见无明确 心脏病 者。 大多数 室性心动过速 为阵发性的， …
Bidirectional Ventricular Tachycardia with Stress-Induced ...
2022年4月27日 · Bidirectional ventricular tachycardia (BDVT) is a rare electrocardiographic finding characterized by rapid, wide complex, alternating QRS morphology with 180-degree swings in the frontal plane axis or, less commonly, alternating right bundle branch and left bundle branch block morphology.
Bidirectional ventricular tachycardia of unusual etiology
2016年2月23日 · Bidirectional ventricular tachycardia (BDVT) is a rare form of ventricular arrhythmia, characterized by changing QRS axis of 180 degrees. Digitalis toxicity is considered as commonest cause of BDVT; other causes include aconite toxicity, myocarditis, myocardial infarction, metastatic cardiac tumour and cardiac channelopathies.
Bidirectional Ventricular Tachycardia - ECG book
Learn about ECG features of Bidirectional Ventricular Tachycardia and its classification within Ventricular Tachycardia for precise diagnosis.
Bidirectional ventricular tachycardia | Learn the Heart - Healio
Bidirectional ventricular tachycardia occurs when the QRS axis alternates with every other beat. This is a pathognomonic rhythm during digoxin toxicity, however is relatively...
Bidirectional Ventricular Tachycardia? - PMC - National Center …
2013年11月5日 · Bidirectional ventricular tachycardia is characterized by an alternating beat‐to‐beat electrocardiographic QRS axis. Triggered activity and reentry mechanism are postulated as possible mechanisms.