ventricular flutter

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Ventricular flutter is an arrhythmia, more specifically a tachycardia affecting the ventricles with a rate over 250-350 beats/min, and one of the most indiscernible. It is characterized on the ECG by a sinusoidal waveform without clear definition of the QRS and T waves. It has been considered as a possible transition stage between ventricular tachycardia and fibrillation, and is a critically unstable arrhythmia that can result in sudden cardiac death.{{cn|date=February 2021}}{{Cite web |title=Heart Ventricle Flutter - an overview {{!}} ScienceDirect Topics |url=https://www.sciencedirect.com/topics/medicine-and-dentistry/heart-ventricle-flutter |access-date=2023-05-11 |website=www.sciencedirect.com}}

It can occur in infancy,{{Cite journal|vauthors=Thies KC, Boos K, Müller-Deile K, Ohrdorf W, Beushausen T, Townsend P |title=Ventricular flutter in a neonate--severe electrolyte imbalance caused by urinary tract infection in the presence of urinary tract malformation |journal=J Emerg Med |volume=18 |issue=1 |pages=47–50 |date=January 2000 |pmid=10645837 |doi= 10.1016/S0736-4679(99)00161-4}} youth,{{Cite journal |vauthors=Hayashi M, Murata M, Satoh M, etal |title=Sudden nocturnal death in young males from ventricular flutter |journal=Jpn Heart J |volume=26 |issue=4 |pages=585–91 |date=July 1985 |pmid=4057556 |doi= 10.1536/ihj.26.585|doi-access=free }} or as an adult.

It can be induced by programmed electrical stimulation.{{Cite journal |vauthors=Gurevitz O, Viskin S, Glikson M, etal |title=Long-term prognosis of inducible ventricular flutter: not an innocent finding |journal=Am. Heart J. |volume=147 |issue=4 |pages=649–54 |date=April 2004 |pmid=15077080 |doi=10.1016/j.ahj.2003.11.012 }}{{Cite journal |vauthors=Viskin S, Ish-Shalom M, Koifman E, etal |title=Ventricular flutter induced during electrophysiologic studies in patients with old myocardial infarction: clinical and electrophysiologic predictors, and prognostic significance |journal=J. Cardiovasc. Electrophysiol. |volume=14 |issue=9 |pages=913–9 |date=September 2003 |pmid=12950532 |doi=10.1046/j.1540-8167.2003.03082.x |s2cid=30924977 }}