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The Neiguan acupuncture point (EH-6) of the heart meridian is often used for circulatory disorders. To clarify this effect, we measured coronary diameters in patients with angina pectoris following acupuncture stimulation using cardioangiography. Two kinds of acupuncture stimulation, the leaving needle (LN) and the sparrow pecking method (SPM), were employed for this study. No significant differences were found between LN and SPM. Concerning the pattern of coronary reaction, coronary constriction following acupuncture showed a relationship to patients with vasospastic angina. Coronary dilation following acupuncture showed a relationship to patients with Syndrome X. The mean dilatation with acupuncture was 68.8% of that caused by isosorbide dinitrate. These findings may help to clarify the mechanism of acupuncture treatment. [ABSTRACT FROM AUTHOR]

The Neiguan acupuncture point (EH-6) of the heart meridian is often used for circulatory disorders. To clarify this effect, we measured coronary diameters in patients with angina pectoris following acupuncture stimulation using cardioangiography. Two kinds of acupuncture stimulation, the leaving needle (LN) and the sparrow pecking method (SPM), were employed for this study. No significant differences were found between LN and SPM. Concerning the pattern of coronary reaction, coronary constriction following acupuncture showed a relationship to patients with vasospastic angina. Coronary dilation following acupuncture showed a relationship to patients with Syndrome X. The mean dilatation with acupuncture was 68.8% of that caused by isosorbide dinitrate. These findings may help to clarify the mechanism of acupuncture treatment. [ABSTRACT FROM AUTHOR]