1,943
edits
File:E309.jpg: Difference between revisions
no edit summary
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
== Summary == | |||
{{Information | |||
|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_from_Michael_Rosengarten|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 = {{by-nc-sa-3.0}} | |||
|other_versions = None | |||
}} | |||