NSVT Johnson Francis | July 6, 2008 | Electrical system of the heart | No Comments NSVT NSVT: Non-sustained Ventricular Tachycardia, lasting less than 30 seconds. Related Posts What is atrial fibrillation with RVR? No Comments | Apr 11, 2013 Pulseless electrical activity No Comments | Jul 13, 2008 Can those with a heart pacemaker use a walkie-talkie? No Comments | Apr 10, 2013 Can a pacemaker prevent atrial fibrillation? No Comments | Apr 26, 2015 About The Author Johnson Francis Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal