The Influence of Lidocaine Volume on Discomfort During Administration of Local Anesthetic

N/ACompletedNCT02086292

Norwegian University of Science and Technology36 enrolled

Overview

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.

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Needlestick Injuries

Interventions

2 ml 1% LidocainePROCEDURE

1 ml 2% LidocainePROCEDURE

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

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)

Locations (1)

Department of neuroscience, NTNU

Trondheim, Norway

Outcomes

Primary Outcomes

pain

1. visual analog scale 0-100mm 2. questionnaire

Time frame: 60 seconds

Data from ClinicalTrials.gov

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