patients were grouped as ischemic heart disease 26 % , rheumatic heart disease 24 % , chronic obstructive pulmonary disease 14 % , systemic hypertensive heart disease 13 % , without clinical heart disease 6 % , preexcitation syndrome 6 % , adult congenital heart disease 4 % , with implanted pacemaker 2 % , pregnancy 2 % and diverse myocardial diseases 2 % .
C0035439
rheumatic heart
C0018787
heart