Large Rabbit Ears and Prominent A-V Dissociation with Positive Concordant Precordial Pattern
Report:
Sinus rhythm 82/min
Ventricular tachycardia 158/min
Complete A-V dissociation
Left atrial abnormality (LAA)
Comment:
This title contains three major features of ectopic ventricular tachycardia and is well suited to teaching beginners in electrocardiography.
One of those novices diagnosed âSVT with 2:1 blockâ, possibly on the strength of ventricular rate being approximately twice the atrial one. He proceeded to treat it with adenosine and then sotalol, producing electromechanical dissociation requiring intubation and adrenaline. She recovered to recordable blood pressure and was transferred to the Canberra Hospital still in VT, where she was shocked with 100 Joules into sinus rhythm (below, Fig 10a).
Her 12-lead ECG is shown in Fig 10b, with LAA and LVH with ST/T changes. Fig 10a. This is one of the gladdest sights in electrocardiography. 10b. Sinus rhythm ECG, post-cardioversion. The early beat in V1 could be aberrantly conducted junctional one, with blocked sinus P wave closely following. The delay to the nadir of its S wave is in favour of ventricular ectopic origin. This cannot be taken any further. Fig 11. 81 year old man with sudden onset of weakness, palpitations and breathlessness.
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 its 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.