Fascicular Ventricular Tachycardia & Positive Concordant Precordial Pattern
Report:
Ventricular tachycardia 198/min
Comment:
This VT is usually responsive to verapamil or adenosine; it is sometimes called Belhassen tachycardia, at least by Belhassen himself and his friends and family14.
The sinus rhythm trace contains five VEBs with marked left axis deviation, also retaining basic RBBB configuration, but with different precordial pattern. These, too, may have fascicular provenance. The first three show retrograde conduction, the last two are dissociated from sinus P waves. This does not affect the constancy of their inter-ectopic distances or the difference in their coupling intervals: parasystole!
The third supraventricular beat is a junctional one, seemingly “forced” (perhaps “facilitated” is a better term) by the preceding VEB with retrograde conduction (its P wave in V1 is down-up rather than up-down).
Less disturbed sinus rhythm is seen in Fig 11b.
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.