Clinical electrocardiography . Fig. 139.—Patient had had angina pectoris for two years. Died in anginalattack two weeks after Fig. 140.—Patient had had angina pectoris for six months. Died of heart diseasetwo weeks after examination. Cardiac Mortality.—The cardiac mortality of the completegroup was per cent. It is interesting to contrast this per- ELECTROCARDIOGRAPHIC STUDY OF HEART DISEASE l6l centage with the mortality attending significant T wave negativity( per cent.) and aberrant QRS complexes in all derivations

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Keywords: ., bookcentury1900, bookdecade1920, bookidclinicalelec, bookyear1922