NCT01750047

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,327

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2012

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2012

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

December 11, 2012

Completed
6 days until next milestone

First Posted

Study publicly available on registry

December 17, 2012

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
Last Updated

September 8, 2014

Status Verified

September 1, 2014

Enrollment Period

1.5 years

First QC Date

December 11, 2012

Last Update Submit

September 4, 2014

Conditions

Keywords

pain perceptionpostoperative paindemographysmokingalcohol

Outcome Measures

Primary Outcomes (2)

  • Pressure pain threshold

    1 year

  • Pressure pain tolerance

    1 year

Secondary Outcomes (2)

  • Pain scores on visual analog scale after operation

    1 year

  • Opioid consumption dose after operation

    1 year

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Chinese patients receiving elective surgery under general anesthesia

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, 430030, China

Location

MeSH Terms

Conditions

PainPain, PostoperativeSmoking

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPostoperative ComplicationsPathologic ProcessesBehavior

Study Officials

  • Zhang Xianwei, Doctor

    Huazhong University of Science and Technology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

December 11, 2012

First Posted

December 17, 2012

Study Start

October 1, 2012

Primary Completion

April 1, 2014

Study Completion

April 1, 2014

Last Updated

September 8, 2014

Record last verified: 2014-09

Locations