Chen Qizhi, Wang Mingan, Zhao Chundi, Chen Hulian (Department of Anesthesia, Second Hospital, Hunan Medical College)
Methods: We applied the acupuncture anesthesia apparatus type HX-I for data measurement. Measurements were performed by fixed persons. In total hysterectomy, we had a fixed team composed of the operators and instrument nurses. The needles to be used were fixed according to the points selected (needle No. 24, 1.5 cm. long for head acupuncture; needle No. 26, 3 cm. long for Ciliao point; needle No. 26, 3 cm. long for Wushu penetrating towards Weidao). Besides, the testing steps were fixed unchangeable too.
Results: 73 cases were tested including mitral commissurotomy, total hysterectomy, subtotal thyroidectomy, subtotal gastrectomy, oviduct ligation and the operations of orthopedics and ophthalmology. The results of these tests showed that different diseases and different points needed the different voltage. (For example, mitral commissurotomy, Sanyangluo towards Ximen. In the head and chest areas, the average voltage 4.5 volts. Subtotal thyroidectomy, Hegu and Neiguan, with an average voltage of 3.34 volts. Oviduct ligation, paraincisional points, the average voltage 7.6 volts. Ophthalomology operations, Hegu and Neiguan, with the average voltage of 0.8 volts.)
We performed 31 cases of total hysterectomy under acupuncture anesthesia. We found that the effect of electroacupuncture was not mainly correlative to the voltage adopted, but it was related to the increased voltage difference between that applied at the beginning of induction and that at the beginning of operation. That is to say, a certain period of time was needed after the start of induction during which the voltage was gradually increased till appropriate level suitable for the patient was obtained. This period of time referred to above was indispensible. From the observation of this group the biggest tolerable amount given at the beginning of induction was far from the amount needed for best stimulation. It must be adjusted again and again to reach the biggest tolerable amount. During the process of the adjustment, the voltage may be increased with the aid of adjuvant drugs. In this group after adjustment, one might clamp the patient's skin with a teeth forceps and the patient felt painless. But it has been difficult to come to a conclusion as to what voltage level would give the best stimulation. Different points needed different amount of voltage. (For example, in total hysterectomy under acupuncture anesthesia, head acupuncture, 3.3 volts to 5.22 volts; in the group of Wushu penetrating towards Weidao, 2.61 to 6.40 volts better, and in the group of Ciliao point, 1.4 volts to 3.08.)
The effect of acupuncture anesthesia was closely related with the voltage used in the terminal stage of induction period, but it did not have much relation with the voltage used during the operation.
Observations proved, both the fat (55-64 kg) and thin (40-54 kg) patients needed the same amount of voltage.
Methods: We applied the acupuncture anesthesia apparatus type HX-I for data measurement. Measurements were performed by fixed persons. In total hysterectomy, we had a fixed team composed of the operators and instrument nurses. The needles to be used were fixed according to the points selected (needle No. 24, 1.5 cm. long for head acupuncture; needle No. 26, 3 cm. long for Ciliao point; needle No. 26, 3 cm. long for Wushu penetrating towards Weidao). Besides, the testing steps were fixed unchangeable too.
Results: 73 cases were tested including mitral commissurotomy, total hysterectomy, subtotal thyroidectomy, subtotal gastrectomy, oviduct ligation and the operations of orthopedics and ophthalmology. The results of these tests showed that different diseases and different points needed the different voltage. (For example, mitral commissurotomy, Sanyangluo towards Ximen. In the head and chest areas, the average voltage 4.5 volts. Subtotal thyroidectomy, Hegu and Neiguan, with an average voltage of 3.34 volts. Oviduct ligation, paraincisional points, the average voltage 7.6 volts. Ophthalomology operations, Hegu and Neiguan, with the average voltage of 0.8 volts.)
We performed 31 cases of total hysterectomy under acupuncture anesthesia. We found that the effect of electroacupuncture was not mainly correlative to the voltage adopted, but it was related to the increased voltage difference between that applied at the beginning of induction and that at the beginning of operation. That is to say, a certain period of time was needed after the start of induction during which the voltage was gradually increased till appropriate level suitable for the patient was obtained. This period of time referred to above was indispensible. From the observation of this group the biggest tolerable amount given at the beginning of induction was far from the amount needed for best stimulation. It must be adjusted again and again to reach the biggest tolerable amount. During the process of the adjustment, the voltage may be increased with the aid of adjuvant drugs. In this group after adjustment, one might clamp the patient's skin with a teeth forceps and the patient felt painless. But it has been difficult to come to a conclusion as to what voltage level would give the best stimulation. Different points needed different amount of voltage. (For example, in total hysterectomy under acupuncture anesthesia, head acupuncture, 3.3 volts to 5.22 volts; in the group of Wushu penetrating towards Weidao, 2.61 to 6.40 volts better, and in the group of Ciliao point, 1.4 volts to 3.08.)
The effect of acupuncture anesthesia was closely related with the voltage used in the terminal stage of induction period, but it did not have much relation with the voltage used during the operation.
Observations proved, both the fat (55-64 kg) and thin (40-54 kg) patients needed the same amount of voltage.
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