a group of 23 consecutive patients with isolated mitral regurgitation confirmed by angiography , 8 of whom had normal and 15 abnormal coronary arteriographies , were compared with a control group of 27 subjects without valvular heart disease ( normal coronary arteriography in 7 cases , abnormal coronary arteriography in 20 cases ) .
C0026266
mitral regurgitation
C0018824
valvular heart disease