Effect of Noise on Identification of Ventricular Late Potentials
نویسندگان
چکیده
Objective: To determine the effect of noise on identification of ventricular late potentials. Study Design: Cross sectional comparative study. Place and Duration of Study: Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi from May 2006 to February 2007. Methodology: The study included 37 patients with Mitral Valve Prolapse for the identification of ventricular late potentials. Patients with acute or old myocardial infarction, diabetes mellitus and systemic hypertension were excluded from the study. Signal averaged ECG was recorded according to the standard protocol. On the basis of noise level, the patients were divided in two groups i.e. low noise group (<0.20 μv) and high noise
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