An investigation on acupuncture of Neiguanand Shaofu was carried out in 12 normal indi-viduals(N),24 cases of hypertrophic obstructivecardiomyopathy(HOCM)and 16 cases of con-gestive cardiomyopathy(CCM).Acupuncture ofthe point was performed over both arms.Afterthe patient felt the needling sensation,a directcurrent of 120 times/minute frequency was con-nected to the needles for 2 minutes,after whichthe needles were retained in place for 15 minutes.Echocardiogram,apex cardiogram,and systolictime interval(STI)were recorded before andafter the acupuncture.Pulmonary capillaryweuge pressure(PCWP)was measured in 2patients.After puncturing Neiguan there was 1)aslight increase of left ventricular outflow tract(LVOT)diameter in N,a significant decrease inHOCM and a significant increase in CCM;2)stroke volume(SV)and cardiac output(CO)were increased in N and CCM,decreased inHOCM;3)the Dd and Ds(internal diameter ofleft ventricle during diastole and during systole)were slightly decreased in N and CCM,increasedin HOCM;4)the LVPWs and LVPWd wereslightly increased in N,HOCM and CCM;5)theSTI was slightly shortened in N and CCM,notchanged in HOCM;6)the PCWP was decreasedin CCM,increased in HOCM.Acupuncture of Shaofu resulted in no changeof LVOT diameter in N,a slight increase inCCM,and a marked increase in HOCM.SV andCO were decreased slightly in N and markedlydecreased in CCM;they were markedly increas-ed in HOCM.The LVPWd and LVPWs weredecreased in N,CCM and HOCM.There was aslight prolongation of STI in N,HOCM andCCM. The authors concluded that acupuncture ofNeiguan could increase cardiac contraction andbe beneficial in heart failure due to CCM orother causes,but could worsen cardiac functionin HOCM.Acupuncture of Shaofu could decreasecardiac contraction and benefit patients withHOCM,but harm heart failure patients withCCM. An investigation on acupuncture of Neiguanand Shaofu was carried out in 12 normal indi-viduals (N), 24 cases of hypertrophic obstructive cardiomyopathy (HOCM) and 16 cases of con-gestive cardiomyopathy (CCM). Acupuncture of the point was performed over both arms. Afterthe patient felt the needling sensation, a direct current of 120 times / minute frequency was con-nected to the needles for 2 minutes, after which the needles were retained in place for 15 minutes.Echocardiogram, apex cardiogram, and systolictime interval (STI) were recorded before andafter the acupuncture. Pulmonary capillary pressure (PCWP) was measured in 2patients. After puncturing Neiguan was was 1) aslight increase of left ventricular outflow tract (LVOT) diameter in N, a significant decrease inHOCM and a significant increase in CCM; 2) stroke volume (SV) and cardiac output (CO) were increased in N and CCM, decreased inHOCM; 3) the Dd and Ds (internal diameter ofleft ventricle during diastole and during systole) were slightly decreased in N and C CM), increasedin HOCM; 4) the LVPWs and LVPWd wereslightly increased in N, HOCM and CCM; 5) the STI was slightly shortened in N and CCM, notchanged in HOCM; 6) the PCWP was decreased in CCM, increased in HOCM. Acupuncture of Shaofu resulting in no change of LVOT diameter in N, a slight increase inCCM, and a marked increase in HOCM.SV andCO were decreased slightly in N and markedly created in CCM; they were markedly increas-ed in HOCM.The LVPWd and LVPWs weredecreased in N, The authors of that acupuncture of Negative could increase cardiac contraction and be beneficial in heart failure due to CCM orother causes, but could worsen cardiac functionin HOCM. Acupuncture of Shaofu could decrease cardiac contraction and benefit patients withHOCM, but harm heart failure patients withCCM.