Broad-Complex Ventricular Tachycardia
Report:
Ventricular tachycardia 163/min
Comment:
This example would be difficult to assign LBBB- or RBBB-like status in view of the RS complex in V1. Nevertheless, the QRS duration of approximately 0.20” is in excess of 0.16” required for LBBB-like VT, let alone 0.14” for RBBB-like VT. The QRS duration is not decisively diagnostic per se. The precordial appearance is in this case inconsistent with either LBBB or RBBB: it is sufficiently “bizarre” (neither meat nor fish) to qualify for ventricular ectopic origin.
The patient was shocked into sinus rhythm (Fig 8a below), revealing presumptive current ischæmia (precordial ST segment depression). The QT interval is prolonged by flecainide given before the electrical cardioversion. The sinus P waves show left atrial abnormality (LAA), with interpeak distance greater than 1mm; this is rather unspecific, but constitutes one of the criteria for LAA and as a marker of risk for AF.
If you have any suggestions for or feedback on this report, please let us know.
Hi, can we chat about some terms and conditions?
The library and it's records are licensed under the Creative Commons Attribution 4.0 International license.
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
By clicking agree below, you are agreeing to adhere to CC BY 4.0.