A Epidemiological Survey of Preoperative Pain Perception and Postoperative Pain in Chinese Population

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01750047

Enrollment

1327

Registered

2012-12-17

Start date

2012-10-31

Completion date

2014-04-30

Last updated

2014-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain, Surgery

Keywords

pain perception, postoperative pain, demography, smoking, alcohol

Brief summary

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.

Detailed description

Patients with the following diseases were excluded: known history of chronic pain, psychiatric diseases or communication disorders, diabetes mellitus, severe cardiovascular diseases, kidney or liver diseases with poor hepatic function, alcohol or pregnancy or at the lactation period.

Interventions

None listed

Study design

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

18 Years to 70 Years

Healthy volunteers

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

Design outcomes

Primary

Measure	Time frame
Pressure pain threshold	1 year
Pressure pain tolerance	1 year

Secondary

Measure	Time frame
Pain scores on visual analog scale after operation	1 year
Opioid consumption dose after operation	1 year

Countries

China

Outcome results