Needlestick Injuries
Conditions
Keywords
Injections, Lidocaine, Pain, Healthy volunteers
Brief summary
The aim of the study is to find a simple method for pain reduction that can be used in clinical practice when administering digital nerve block with a single subcutaneous injection. It will be investigated whether a smaller volume of lidocaine can decrease pain during injection.
Detailed description
Healthy volunteers will receive a single subcutaneous injection digital nerve block at the base of each ring finger. 2ml 1% lidocaine in one of the fingers, and 1 ml 2% lidocaine in the other. After each injection, the subject will be asked to evaluate the pain on a visual analog scale (0-100 mm). Additionally the sensibility will be tested with a Semmes-Weinstein monofilament, to evaluate if the different methods achieve desired anesthetic effect.
Interventions
PROCEDURE2 ml 1% Lidocaine
PROCEDURE1 ml 2% Lidocaine
Sponsors
St. Olavs Hospital
Norwegian University of Science and Technology
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* age 18 - 65
Exclusion criteria
* regular use of analgesics * known hypersensitivity of local anaesthetic * renal-, heart- or liver disease * known peripheral neuropathy or diabetes mellitus * local infection on injection site * circulation disorders in upper extremities (e.g. Raynaud´s phenomenon)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| pain | 60 seconds | 1. visual analog scale 0-100mm 2. questionnaire |
Countries
Norway
Outcome results
None listed