Research Group of Acupuncture Anesthesia, Institute of Medicine and Pharmacology of Fujian Province, etc.
The purpose of this paper is to observe the distributional characteristics of acupuncture analgesic regions (AAR) on subjects with marked propagated sensation along channels (PSC). There were 16 cases to be investigated, whose PSC could travel over the whole or nearly whole course of the channel. Among them, 10 or more channels had been observed in three cases, 6-9 channels in 4 cases, and 4-5 channels in 6 cases. (When a channel was examined repeatedly in the same person, it was counted as one only.) Therefore, 97 channels were observed in total. Channels were observed in the following order; first the Large Intestine Channel, then the Stomach Channel, Du Channel, Urinary Blader Channel etc.
By means of spring algometer, pain thresholds were measured and digital plethysmographs were taken simultaneously in some cases. One channel was tested in one experiment only. About 7 points belonging to the channel were selected for the test. At the same time, another 7-8 points of the channels on the head, trunk and extremities or spots 3-5 cm apart from the points to be tested were examined as control. The results obtained from 30 examinations of the Large Intestine Channel in 13 cases during acupuncture of Hegu had shown that the distributional characteristic of analgesic regions along the channel was apparent and so with the Stomach Channel and Du Channel. By statistics, data obtained from 97 channels in 16 cases revealed that average increase of pain tolerance threshold of points along the channels during acupuncture was 1.59 times greater than the controls, and the tendency of AAR to distribute along its channel was evident. Under certain conditions, the variations of amplitude of digital plethysmograph, as an indication of pain response, could be employed to map out the special distribution of AAR. The records had been taken down successfully in 4 cases. Results obtained from observations on the distribution of AAR of the whole or part of the body demonstrated that there was a definite width of AAR, similar to a band in accordance with the course of the PSC. During acupuncture, pain threshold increased greatly in its central portion, moreover, there was a definite process in the development of acupuncture analgesia with an increase of pain threshold along the course of the channel, which then gradually spreaded to its vicinity. Thus, it can be seen that there are both particularity and universality in the effect of acupuncture analgesia.
This particular phenomenon in the distribution of AAR, as mentioned above, is hard to explain adequately at present. It is a clue for further improvement of clinical effectiveness of acupuncture and elucidation of the mechanism of acupuncture anesthesia.
The purpose of this paper is to observe the distributional characteristics of acupuncture analgesic regions (AAR) on subjects with marked propagated sensation along channels (PSC). There were 16 cases to be investigated, whose PSC could travel over the whole or nearly whole course of the channel. Among them, 10 or more channels had been observed in three cases, 6-9 channels in 4 cases, and 4-5 channels in 6 cases. (When a channel was examined repeatedly in the same person, it was counted as one only.) Therefore, 97 channels were observed in total. Channels were observed in the following order; first the Large Intestine Channel, then the Stomach Channel, Du Channel, Urinary Blader Channel etc.
By means of spring algometer, pain thresholds were measured and digital plethysmographs were taken simultaneously in some cases. One channel was tested in one experiment only. About 7 points belonging to the channel were selected for the test. At the same time, another 7-8 points of the channels on the head, trunk and extremities or spots 3-5 cm apart from the points to be tested were examined as control. The results obtained from 30 examinations of the Large Intestine Channel in 13 cases during acupuncture of Hegu had shown that the distributional characteristic of analgesic regions along the channel was apparent and so with the Stomach Channel and Du Channel. By statistics, data obtained from 97 channels in 16 cases revealed that average increase of pain tolerance threshold of points along the channels during acupuncture was 1.59 times greater than the controls, and the tendency of AAR to distribute along its channel was evident. Under certain conditions, the variations of amplitude of digital plethysmograph, as an indication of pain response, could be employed to map out the special distribution of AAR. The records had been taken down successfully in 4 cases. Results obtained from observations on the distribution of AAR of the whole or part of the body demonstrated that there was a definite width of AAR, similar to a band in accordance with the course of the PSC. During acupuncture, pain threshold increased greatly in its central portion, moreover, there was a definite process in the development of acupuncture analgesia with an increase of pain threshold along the course of the channel, which then gradually spreaded to its vicinity. Thus, it can be seen that there are both particularity and universality in the effect of acupuncture analgesia.
This particular phenomenon in the distribution of AAR, as mentioned above, is hard to explain adequately at present. It is a clue for further improvement of clinical effectiveness of acupuncture and elucidation of the mechanism of acupuncture anesthesia.
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