title: [Clinical observation on injection of small dose of morphine into Neiguan (PC 6) for treatment of chest pain in the patient with acute myocardial infarction].
abstract: OBJECTIVE
  To probe into an effective injection way of Morphine for treatment of chest pain of acute cardiac infarction.
  
  
  METHODS
  Ninety cases of myocardial infarction were randomly divided into 3 groups, an acupoint-injection group, an intravenous injection group and a hypodermic injection group, 30 cases in each group. The acupoint-injection group were treated with injection of 2 mg Morphine into bilateral Neiguan (PC 6) respectively, and the intravenous injection group with intravenous injection of 5 mg Morphine and the hypodermic injection group with hypodermic injection of 5 mg Morphine, and other treatments were same in the 3 groups. The analgesic effects were assessed with visual analogue scale (VAS) 5, 10, 30, 60 and 180 minutes after treatment and the complications were observed.
  
  
  RESULTS
  There were no significant differences among the 3 groups before treatment in the VAS score (P > 0.05). The analgesic effect in the acupoint-injection group was better than those in other two groups 5 min, 30 min and 180 min after treatment (all P < 0.01). The incidence rate of nausea and vomiting of 0.3% in the acupoint-injection group was significantly lower than 40.0% in the intravenous injection group and 20.0% in the hy podermic injection group (all P < 0.01).
  
  
  CONCLUSIONS
  Injection of small dose of Morphine into Neiguan (PC 6) has a definite therapeutic effect on chest pain of acute myocardial infarction with earlier analgesic effect, smaller dose of Morphine, longer analgesic duration and less complications.
authors.affiliation: The Second Affiliated Hospital of Hebei North College, Zhangjiakou 075100, China.
authors.forename: Xue-Yu
authors.initials: XY
authors.lastname: Zhang
authors.forename: Wen-Hui
authors.initials: WH
authors.lastname: Li
authors.forename: Tang-Fang
authors.initials: TF
authors.lastname: Wen
authors.forename: Chun-Hai
authors.initials: CH
authors.lastname: Li
authors.forename: Zheng
authors.initials: Z
authors.lastname: Cheng
authors.forename: Xiu-Li
authors.initials: XL
authors.lastname: Zhang
authors.forename: Xin-Jing
authors.initials: XJ
authors.lastname: Su
mesh_terms: D015667:Acupuncture Analgesia; D015669:Acupuncture Points; D000368:Aged; D002637:Chest Pain / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007267:Injections; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage*; D009203:Myocardial Infarction / Q000188:drug therapy*
chemical_list: D009020:Morphine