针刺麻醉术前预测对了解个体差异与针麻效果的临床规律、寻找提高针麻有效方法、选择针麻适应症和阐明针麻原理均具有重要意义.目前采用预测指标繁多、方法各异

且易受主观成份及客观因素影响

因而结论往往不一

所以在条件相对稳定

方法相对统一的情况下研究一些方法简易、符合率高

受主、客观因素干扰小的预测指标仍是当前The preoperative estimation of acupuncture anesthesia effectiveness is of great importance in evaluating the relationship between individual varia- tion and acupuncture anesthesia effect.This paper introduces a study on various preoperative estimation methods

including the indices of touch threshold measurement and pulse rate. The pulse rate of the patient undergoing gastrectomy was measured with an electronic pulse rate instrument during three to five days before operation. The changes in pulse rate were taken down seperately when patients lying down

after twirling of acupuncture needle for 15 min and again 10 min.after the removal of the acupuncture needle.Changes of the touch threshold were measured on the intended part of incision with a BY-7A touch threshold data reading equipment.By double blind method

we compared the average values of the changes with the acupuncture anesthesia effect. The points used for surgery as well as the method of acupuncture

para- meter of stimuli

were all the same

the explanations for measures taken were played off a tape recorder. 1.The relationship between the change in pulse rate after acupunctuer and the effect of acupuncture anesthesia. The average decrease of the pulse rate after acupuncture in grade 1-2 was 4.5 beats/min.(P<0.01)and in grade 3-4 was 1.3 beats/min.(P>0.05). The effect on pulse rate persisted 10 min.after the acupuncture needles were removed.The change of pulse rate in grade 1-2 was more obvious than in grade 3-4 from beginning to end. After insertion of the needles

the change of the pulse rate may be classified into three classes

i.e.increase

decrease and unchanged.These were compared seperately with the actual effect of acupuncture anesthesia

the total rate of correspondence being 74.3%.The rate of correspondence in grade 1-2 was 92.3%. 2.The relationship between the change of touch threshold and the effect of acupuncture anesthesia: After the insertion of the needles

the average value of touch thre- shold in grade 1-2 changed from 10.05(mA)to 10.36(mA)(P>0.5). The average value of touch threshold after needling in grade 3-4 decre- ased from 9.81(mA)to 8.32(mA)(P<0.01). The preoperative predict of the effect of acupuncture according to chan- ges of the touch threshold was carried out.The total rate of correspon- dence was 92.1%.Moreover

the test of the touch threshold can be re- peated with unchanged results. The investigation shows that both the pulse rate and the touch thre- shold measurements can be used as indices for preoperative estimation

the touch threshold being more stable and reliable with a high rate of correspondence. It was found that the changes of the touch threshold and the pulse rate after needling were more marked in grade 1-2 than in grade 3-4.It is suggested that the relative specificity of points and the individual pecu- liarity of grade 3-4 patients be further investigated.