The Significance of rS Change in the V 2 Lead for Diagnosing Ventricular Tachycardia Deserves Attention: A Case Report
10.1097/CD9.0000000000000135
- VernacularTitle:The Significance of rS Change in the V 2 Lead for Diagnosing Ventricular Tachycardia Deserves Attention: A Case Report
- Author:
Jian LI
1
;
Shixing LI
1
;
Chuang ZHANG
1
;
Xiangmin SHI
1
Author Information
1. Department of Cardiology, the Sixth Medical Center of Chinese People’s Liberation Army General Hospital, Beijing 100853, China
- Publication Type:Journal Article
- Keywords:
Giant cell;
Myocarditis;
Ventricular;
Supraventricular;
Tachycardia
- From:
Cardiology Discovery
2024;04(4):319-322
- CountryChina
- Language:English
-
Abstract:
Occasionally, incessant ventricular tachycardia (VT) exhibits a narrow QRS complex pattern that could be misdiagnosed as supraventricular tachycardia. In this case, a 66-year-old woman was referred to the emergency department due to the worsen hemodynamic and incessant VT manifesting as a narrow QRS complex pattern that was initially misdiagnosed as supraventricular tachycardia, which was unresponsive to antiarrhythmic drugs. The electrocardiogram manifestation of VT was characterized by an rS configuration in lead V 2 with Rs pattern in leads V 1 and V 3, and the R-wave amplitude of lead V 1 and V 3 was greater than that of lead V 2, which was different from the typical electrocardiogram features of right bundle branch block. The patient was subsequently found to have suspected acute myocarditis when the cause of the disease was investigated. A combination of high-dose methylprednisolone, immunoglobulin and intra-aortic balloon pump was given immediately. Hemodynamics gradually stabilized, and ventricular tachycardia did not recur. The rS change in the V 2 lead may be helpful to distinguish VT from supraventricular tachycardia.
