Pain | A Epidemiological Survey of Preoperative Pain Perception and Postoperative Pain in Chinese Population
Pain research study
What is the primary objective of this study?
Object: Every person's pain perception and possible postoperative pain is different. As the investigators know, they are affected by many factors. However, the investigators don't know whether the smoking factors, alcohol factors, surgery type, education background, etc. will affect individual pain perception and possible postoperative pain in Chinese population. This study was conducted to investigate the power of these possible affect factors. Method: Patients receiving elective surgery under general anesthesia were recruited into this study. The investigators measured their preoperative pressure pain threshold (PPT) and pressure pain tolerance (PTO)and also investigated the patient's personal information of smoking factors, alcohol factors, surgery type, education background, etc. In addition, we retrospectively investigated the visual analog scale (VAS) during patient-controlled analgesia (PCA) treatment 0 to 48 h after operation as well as the PCA press frequency and drug consumption of those patients who received PCA administration.
Who is eligible to participate?
Inclusion Criteria: - Aged 18 to 70 - The right hand is handedness - Agreed to participate the research - Not with known chronic disease - Not taking analgesics within 3 months Exclusion Criteria: - History of chronic pain diseases - Diabetes mellitus - Severe cardiovascular diseases - Kidney or liver diseases - Alcohol or drug abuse - Pregnancy or at lactation period - Disagree to participate to the research
Which medical condition, disease, disorder, syndrome, illness, or injury is researched?
Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.
Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.
Start Date: October 2012
Completed Date: April 2014
Primary Outcome: Pressure pain threshold
Secondary Outcome: Pain scores on visual analog scale after operation
Study sponsors, principal investigator, and references
Principal Investigator: Zhang Xianwei, Doctor
Lead Sponsor: Xianwei Zhang