Warm Patch Decrease Propofol Injection Pain

September 15, 2020 updated by: zhiming zhang, First People's Hospital of Chenzhou

Will Warm Patch on the Injecting Site Decrease the Injection Pain Induced by Propofol

Propofol causes injection pain is still a common clinical unsolved problem. Mixing a small amount of lidocaine with propofol or injecting lidocaine in advance can reduce the pain caused by propofol injection. Using an air warmer to warm the arm can also reduce the pain caused by propofol injection. Investors suspect that treatment with a warming patch (covering the injection site) can also reduce the pain caused by propofol injection.

Study Overview

Detailed Description

This is a single-center randomized controlled clinical study. Purpose of this study is to explore whether the coverage of the warming patch (for 5min before injection) can reduce the pain induced by propofol injection.

The patients included in the study were randomly divided into two groups. The group W used a warming patch to cover the injection site, and the group C used a cotton pad to cover the injection site. After 5 minutes of coverage, the propofol injection was induced, and the patient's complaint of pain (calling or arm withdrawal) during propofol injection was observed, and the patient's recall of the pain score during induction after the patient recovered. After the patients regained consciousness, the data of the two groups were compared to determine whether the use of the warming patch could reduce the pain caused by propofol injection.

Study Type

Interventional

Enrollment (Actual)

120

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Hunan
      • Chenzhou, Hunan, China, 423000
        • Zhiming Zhang

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • No peripheral phlebitis
  • No history of Raynaud's syndrome
  • No history of smoking or alcoholism
  • Body mass index BMI<28 kg/cm2

Exclusion Criteria:

  • Refusal of anesthesia
  • Previous injection pain caused by propofol
  • Difficulty in exposing the veins on the back of the hand or difficulty in venipuncture
  • Complained of pain after normal saline infusion.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Warm patch
the injection site was covered with warm patch.
The warming patch can increase the temp of injection site, result in a blood vessels to dilate, which may have some contribute to decreasing injection pain.
Placebo Comparator: Cotton patch
the injection site was covered with cotton patch.
The Cotton patch will cover the injection site as placebo. It dose not have the function of heating comparing to Warming patch.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Arm withdrawn
Time Frame: 5min
When propofol was injected, the arm was withdrawn due to injection pain.
5min
Complaints of pain
Time Frame: 5min
The patient complained about the pain of the propofol injection
5min
Pain score after awakening from propofol
Time Frame: 10min
Let the patients give a score when they recoved from propofol induced anesthesia.
10min

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Respiratory depression
Time Frame: 5min
those ases when pulse oxygen saturation is less than 90%
5min
Temperature of injection site after injecting of propofol.
Time Frame: 10min
Get the temperature of the back of the hand with an infrared thermometer
10min

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 20, 2020

Primary Completion (Actual)

September 1, 2020

Study Completion (Actual)

September 6, 2020

Study Registration Dates

First Submitted

September 8, 2020

First Submitted That Met QC Criteria

September 15, 2020

First Posted (Actual)

September 21, 2020

Study Record Updates

Last Update Posted (Actual)

September 21, 2020

Last Update Submitted That Met QC Criteria

September 15, 2020

Last Verified

September 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Sharing Time Frame

180 days

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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