IRCT20180530039913N1 IRCT 2018-09-04 Shiraz University of Medical Sciences Acupuncture for pain relief investigation of the effect of acupuncture on post-op chest pain after open heart surgery 2018-10-23 anticipated 30 Complete https://irct.ir/trial/32333 interventional Randomization: Not randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Blinding description: 1)the study group doesnt know that acupuncture really was done on specific meiridan that related to cardiac pain or no? 2) the personnel doesn't have accurate informations about cardiac meridian that related to pain. N/A investigation of the effect of acupuncture on post-op chest pain after open heart surgery. Intervention 1: Intervention group 1: Intervention group: In the intervention group, for 15 patients, acupuncture was performed at the points of the cardiac Meridian with Needel size 0.3-1 CUN vertically for 30 minutes and 10 sessions Meridian related to cardiac pain : HT3 ,HT4,HT5,HT6,HT7, PC3,PC5,PC6,PC7. Intervention 2: Control group: for control group also started treatment (acetaminophen 500 mg at pain every 6 hours ) and finally, by completing the VAS score questionnaire, based on the statistical analysis, we compared the statistical data of the two groups. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is "No more information"