Pain Perception: Lidocaine Rate/Temp/Buffer
Study Details
Study Description
Brief Summary
This study will collect data from multiple academic institutions. The primary objective for part A of this study is to determine the impact of anesthetic injection rate and temperature on pain perception during dermatologic procedures, and the objective for the part B of this study is to determine if buffering of the anesthetic solution alters pain perception.
This study is a pilot study designed to determine feasibility of these procedures.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
N/A |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: Slow, Room Temperature In Part A, subject will be randomized to receive an injection of lidocaine that is slow at room temperature, rapid at room temperature, slow at warm temperature, or rapid at warm temperature. |
Procedure: Slow, Room Temperature Injection
The room temperature local anesthetic agent will be administered by slow infiltration.
Drug: Lidocaine
Injectable lidocaine solution (Lidocaine Hydrochloride and Epinephrine)
Drug: Buffer
Sodium Bicarbonate
|
Experimental: Rapid, Room Temperature In Part A, subject will be randomized to receive an injection of lidocaine that is slow at room temperature, rapid at room temperature, slow at warm temperature, or rapid at warm temperature. |
Procedure: Rapid, Room Temperature Injection
The room temperature local anesthetic agent will be administered by rapid infiltration.
Drug: Lidocaine
Injectable lidocaine solution (Lidocaine Hydrochloride and Epinephrine)
Drug: Buffer
Sodium Bicarbonate
|
Experimental: Slow, Warmed In Part A, subject will be randomized to receive an injection of lidocaine that is slow at room temperature, rapid at room temperature, slow at warm temperature, or rapid at warm temperature. |
Procedure: Slow, Warm Temperature Injection
The warmed local anesthetic agent will be administered by slow infiltration.
Drug: Lidocaine
Injectable lidocaine solution (Lidocaine Hydrochloride and Epinephrine)
Drug: Buffer
Sodium Bicarbonate
|
Experimental: Rapid, Warmed In Part A, subject will be randomized to receive an injection of lidocaine that is slow at room temperature, rapid at room temperature, slow at warm temperature, or rapid at warm temperature. |
Procedure: Rapid, Warm Temperature Injection
The warmed local anesthetic agent will be administered by rapid infiltration.
Drug: Lidocaine
Injectable lidocaine solution (Lidocaine Hydrochloride and Epinephrine)
Drug: Buffer
Sodium Bicarbonate
|
Experimental: Buffered In Part B, subject will be randomized to receive an injection of lidocaine that is buffered or non-buffered. |
Procedure: Buffered Injection
One side of the body will be randomized to receive an injection of the buffered agent, while the contralateral side will be assigned to receive an injection of the unbuffered anesthetic agent.
Drug: Lidocaine
Injectable lidocaine solution (Lidocaine Hydrochloride and Epinephrine)
Drug: Buffer
Sodium Bicarbonate
|
Placebo Comparator: Non-Buffered In Part B, subject will be randomized to receive an injection of lidocaine that is buffered or non-buffered. |
Procedure: Non-Buffered Injection
One side of the body will be randomized to receive an injection of the buffered agent, while the contralateral side will be assigned to receive an injection of the unbuffered anesthetic agent.
Drug: Lidocaine
Injectable lidocaine solution (Lidocaine Hydrochloride and Epinephrine)
|
Outcome Measures
Primary Outcome Measures
- Pain on a Visual Analog Scale (VAS) [intraoperative]
Subjects will rate the pain VAS score immediately after the needle is withdrawn. They will be asked to rate the pain of the injection of the solution. VAS pain scale is rated on a 10 cm scale with 0 cm being no pain and 10 cm being extremely painful.
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Subjects who are undergoing dermatologic procedures.
-
Subjects ages 18-89 year old.
-
The subjects have the willingness and the ability to understand and provide informed consent and communicate with the investigator.
Exclusion Criteria:
-
Subjects who are allergic to lidocaine.
-
History of bleeding tendency or coagulopathy.
-
Pregnant or lactating.
-
Active skin disease or skin infection in the treatment area.
-
Unable to understand the protocol or give informed consent.
-
Any other condition, in the professional opinion of the investigator, that would potentially affect response or participation in the clinical study, or would pose as an unacceptable risk to the subject.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Northwestern University Department of Dermatology | Chicago | Illinois | United States | 60611 |
Sponsors and Collaborators
- Northwestern University
Investigators
- Principal Investigator: Murad Alam, MD, Northwestern University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- STU00202894