【摘要】 鉴于粗纤维与针剌信号传递有密切关系,粗纤维活动对细纤维活动具有抑制作用,本工作研究了穴位阻滞对针麻效应和针感的影响。(1) 稀浓度奴夫卡因阻滞“三阴交”的实验组的针麻优良率较对照组提高了30.9%(P <0.01)。(2) 稀浓度奴夫卡因穴位阻滞或硬膜外麻醉后,可耐受的刺激强度比注射或麻醉前增大0.5～1.0倍;皮肤刺痛消失,但仍有针感且性质较为温和。据此,倾向于认为针效和针感的产生和改善主要与粗纤维有关,而与细纤维关系不大。更多还原

【Abstract】 In view of the close relation-ship between large fibers and transmission of impulses from acupuneture point and the inhibitory action exerted by large fibers on small fibers, the present study was undertaken to investigate the effect of strong stimulation of the meridian point which is infiltrated with dilute local anesthetic on acupuncture analgesia and needling feeling.The results are as follows(1) The rate of "excellent" and "good" effect of acupuncture analgesia for the lower abdomenal operation, such as tubai ligation, gasterohysterectomy and so on, in the test group with dilute novocain block in point "Sanyinjiao" (Sp. 6) was raised by 30.9% as compared with that of the control group (P<o.o1).(2) Following the injection of 0.1% novocain into point "Sanyinjiao" (Sp. 6). or epidural anesthesia, the intensity of stimulation which could be tolerated was 0.5～1.0 times greater than that before injection or anesthesia; and the prick pain of the skin over the area of point "Sanyinjiao" disappeared while the needling feeling induced by needling of the point still remained and its property became more adequate,In accordence with the results mentioned above, we tend to believe thal the development and improvemenl of the analgesic efficacy and the needling sensation may correlate closely with the large afferenl fibers and bear lille relation to the small one.更多还原