The Influence of Injection Speed on Pain During Administration of Local Anaesthetic.

Norwegian University of Science and Technology

Status: Completed

Conditions: Needlestick Injuries

Treatments: Procedure: Normal speed lidocaine injection; Procedure: Slow lidocaine injection; Procedure: Fast lidocaine injection

Study type: Interventional

Funder types: Other

Identifiers

NCT02107742

2013/2297C

Details and patient eligibility

About

This study will investigate the influence of injection speed on pain during injection of lidocaine. It is anticipated that a longer injection time will lead to less pain for the patient during the injection. This hypothesis will be tested on healthy volunteers, who will each receive three injections with the same amount of lidocaine subcutaneously on the abdomen. The injections will be given over 15, 30 and 45 seconds. After each injection, the subject will be asked to evaluate the pain on a Visual analog scale (0-100 mm). The aim of the study is to find a simple method for pain reduction that can be used in clinical practice.

Enrollment: 36 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age 18-65 years

Exclusion criteria

• Kidney, heart or liver disease
• Eczema or psoriasis on injection site
• Neuropathy
• Regular use of painkillers
• Hypersensitivity of Lidocaine
• Pregnancy
• Diabetes

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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36 participants in 1 patient group

Injection speed

Experimental group

Description:

each participant receives 3 injections with the same amount of lidocaine subcutaneously on the abdomen, given over 15, 30 and 45 seconds

Treatment:

Procedure: Normal speed lidocaine injection

Procedure: Fast lidocaine injection

Procedure: Slow lidocaine injection