Zhou Jiayin, Li Xuebing (Department of Physiology, Lanzhou Medical College)
A new point named zhaguan (Tubal Ligation Point) was designed according to the principle of segmental innervation to study the analgesic mechanism and practised in tubal ligation operation clinically by electro-acupuncture anesthesia.
Zhaguan Point: The needling point of Zhaguan was at about 3 cm in medial side of anterior superior iliac spine bilaterally, where a usual needle was inserted into the skin and passed hypodermically parallel with inguinal canal until the needle point reached near the symphysis pubis. This needle was used as an effective electrode. Another needle used as a reference electrode and was inserted into the skin at the midline of abdomen just below the umbilicus and passed 5 cm towards the pubis hypodermically.
Firstly, 60 adults were observed about the alteration of skin pain threshold by changing the parameter of electro-acupuncture at Zhaguan point. We found that the pain threshold of skin in different parts of the body was invariably elevated, but the operation incision part was markedly elevated. It is suggested that there may be a specific connection between the point and the operation incision part. When the intensity of electro-acupuncture was kept in a constant state and a frequency of 30, 60, or 100 Hz were selected, the test acceptors obtained a best needling sensation and the pain threshold was markedly elevated during this time. When the frequency of 10 or 800 Hz were used, the needling sensation was not strong or no sensation occured, and the pain threshold was also markedly decreased. However, when the frequency of electro-acupuncture was kept in constant state, the pain threshold with stronger stimuli would be more greatly elevated than that with weaker stimuli.
Secondly, the analgesic effect was observed in 245 women during abdominal tubal ligation operation with electro-acupuncture anaesthesia of Zhaguan point. The excellent and good results of analgesic efficacy in operation were 94.3%. The groups of giving adjuvant drugs (Dolantin or Sodium barbital) were the same as the group giving electro-acupuncture anaesthesia alone.
We also observed the change of the skin temperature of face, heart rate and blood pressure of the operation acceptors during the course of operation under acupuncture anaesthesia. The above indices had no remarkable change in Grades I and II, but were variable in the Grade III.
A new point named zhaguan (Tubal Ligation Point) was designed according to the principle of segmental innervation to study the analgesic mechanism and practised in tubal ligation operation clinically by electro-acupuncture anesthesia.
Zhaguan Point: The needling point of Zhaguan was at about 3 cm in medial side of anterior superior iliac spine bilaterally, where a usual needle was inserted into the skin and passed hypodermically parallel with inguinal canal until the needle point reached near the symphysis pubis. This needle was used as an effective electrode. Another needle used as a reference electrode and was inserted into the skin at the midline of abdomen just below the umbilicus and passed 5 cm towards the pubis hypodermically.
Firstly, 60 adults were observed about the alteration of skin pain threshold by changing the parameter of electro-acupuncture at Zhaguan point. We found that the pain threshold of skin in different parts of the body was invariably elevated, but the operation incision part was markedly elevated. It is suggested that there may be a specific connection between the point and the operation incision part. When the intensity of electro-acupuncture was kept in a constant state and a frequency of 30, 60, or 100 Hz were selected, the test acceptors obtained a best needling sensation and the pain threshold was markedly elevated during this time. When the frequency of 10 or 800 Hz were used, the needling sensation was not strong or no sensation occured, and the pain threshold was also markedly decreased. However, when the frequency of electro-acupuncture was kept in constant state, the pain threshold with stronger stimuli would be more greatly elevated than that with weaker stimuli.
Secondly, the analgesic effect was observed in 245 women during abdominal tubal ligation operation with electro-acupuncture anaesthesia of Zhaguan point. The excellent and good results of analgesic efficacy in operation were 94.3%. The groups of giving adjuvant drugs (Dolantin or Sodium barbital) were the same as the group giving electro-acupuncture anaesthesia alone.
We also observed the change of the skin temperature of face, heart rate and blood pressure of the operation acceptors during the course of operation under acupuncture anaesthesia. The above indices had no remarkable change in Grades I and II, but were variable in the Grade III.
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