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Abstract
this study is retrospective and prospective assessment of the prevalence of pacing-induced cardiomyopathy clinically by symptomatology , clinical signs and NYHA stratification of the studied population, echocardiographically as reflected on L.V. dilatation, L.V. asymmetrical hypertroply and low exercise capacity , nuclear imaging ( radio-isotope scanning ) for assessment of LV dilatation and function and to correlate between the echocardiographic and nuclear findings post-pacemaker implantation.