Clinical Trial Summary
Cesarean section is one of the most common operations in obstetrics. A survey shows that the
rate of cesarean section in China is more than 40%, and even more than 70%. At present, the
main analgesia methods after cesarean section are: patient controlled intravenous analgesia
(PCIA), single injection of opioids into spinal canal, nerve block technique, combined or
single oral drug for postoperative analgesia, etc. All kinds of postoperative analgesia
methods have their own advantages and disadvantages. At present, PCIA is widely used in
clinic, but it can cause side effects such as pruritus, nausea, vomiting and respiratory
depression. Therefore, it is urgent to find a safe, effective, economic, reliable and
operable treatment of PCIA for postoperative analgesia after cesarean section.
Electroacupuncture is a technology combining traditional acupuncture and modern
electrotherapy, which has a significant effect on acute and chronic pain. Studies have
confirmed that electroacupuncture can help parturient women to deliver and relieve pain after
delivery. However, there are few studies on the analgesic effect of Electroacupuncture on
pain after cesarean section, and there are a few reports on wrist ankle acupuncture. On the
basis of our previous research, we found that the frequency of 20 / 100Hz and 2Hz were the
best for EA analgesia, and the density wave. Electroacupuncture is an ideal choice for PCIA
analgesia after cesarean section because of its low price, rapid onset, long duration and no
adverse drug reactions. "Zusanli" belongs to the stomach meridian of Foot Yangming. It is the
meridian of multi Qi and multi blood. It has the effect of regulating meridians and
collaterals, dredging Qi and blood, and treating various kinds of abdominal pain. Sanyinjiao
belongs to the spleen meridian of foot Taiyin, which is the meeting of foot Taiyin, Jueyin
and Shaoyin. Since ancient times, Sanyinjiao has been a commonly used acupoint to relieve
labor pain. Modern studies have also shown that Sanyinjiao can relieve uterine contraction
pain by relieving uterine smooth muscle spasm, improving the state of uterine ischemia and
hypoxia, releasing a variety of central analgesic substances and so on Spleen and blood,
liver tonifying and kidney tonifying. Therefore, on the basis of conventional PCIA analgesia
combined with electroacupuncture at Zusanli and Sanyinjiao, we may play an auxiliary role in
analgesia for puerpera after cesarean section.
Electroacupuncture is an ideal choice for PCIA analgesia after cesarean section because of
its low price, rapid onset, long duration and no adverse drug reactions. "Zusanli" belongs to
the stomach meridian of Foot Yangming. It is the meridian of multi Qi and multi blood. It has
the effect of regulating meridians and collaterals, dredging Qi and blood, and treating
various kinds of abdominal pain. Sanyinjiao belongs to the spleen meridian of foot Taiyin,
which is the meeting of foot Taiyin, Jueyin and Shaoyin. Since ancient times, Sanyinjiao has
been a commonly used acupoint to relieve labor pain. Modern studies have also shown that
Sanyinjiao can relieve uterine contraction pain by relieving uterine smooth muscle spasm,
improving the state of uterine ischemia and hypoxia, releasing a variety of central analgesic
substances and so on Spleen and blood, liver tonifying and kidney tonifying. Therefore, on
the basis of conventional PCIA analgesia combined with electroacupuncture at Zusanli and
Sanyinjiao, we may play an auxiliary role in analgesia for puerpera after cesarean section.