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Transcript
Positive signal-averaged electrocardiogram in a patient with sustained ventricular tachycardia. All three measured parameters are abnormal. Filtered QRS duration (DUR) is 136 ms, and the root-mean-square (RMS) voltage of the last 40 ms of the QS complex is 4.37 μV. LAS, low-amplitude signal. Reproduced with permission from Prystowsky EN, Klein GT. Cardiac Arrhythmias: An Integrated Approach for the Clinician. New York, NY: McGraw-Hill; 1994:345. Source: Chapter 39. Approach to the Patient with Cardiac Arrhythmias, Hurst's The Heart, 13e Citation: Fuster V, Walsh RA, Harrington RA. Hurst's The Heart, 13e; 2011 Available at: http://mhmedical.com/ Accessed: May 12, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved