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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


Case reports by Michael Rosengarten


EKG World Encyclopedia , courtesy of Michael Rosengarten BEng, MD.McGill




Michael Rosengarten BEng, MD.McGill


Creative Commons Attribution Noncommercial Share-Alike License

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current09:38, 21 February 2012Thumbnail for version as of 09:38, 21 February 20123,292 × 1,887 (5.96 MB)DarrelC (talk | contribs)

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