File:E309.jpg

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Summary

Description

A 45 year old lady with palpitations and history of chronic renal failure Ventricular tachycardia

A wide QRS tachycardia is VT until proven otherwise (1). Features suggesting VT include:-

evidence of AV dissociation independent P waves (shown by arrows here) capture or fusion beats beat to beat variability of the QRS morphology very wide complexes (> 140 ms) the same morphology in tachycardia as in ventricular ectopics history of ischaemic heart disease absence of any rS, RS or Rs complexes in the chest leads (2) concordance (chest leads all positive or negative)


1) Griffith MJ, Garrat CJ, Mounsey P, Camm AJ. Ventricular tachycardia as the default diagnosis in broad complex tachycardia. Lancet. 1994;343:386- 2) Brugada P, Brugada J, Mont L, et al. A new approach to the differential diagnosis of a regular tachycardia with a wide QRS complex. Circulation. 1991;83:1649-1659

with permision from the site of Dr. Dean Jenkins

Category

Case reports by Michael Rosengarten

Source

EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill

Date

2012

Author

Michael Rosengarten BEng, MD.McGill

Permission

Creative Commons Attribution Noncommercial Share-Alike License

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