Comparison of the Effects of Vapocoolant Spray and EMLA Cream on Pain During Needle Electromyography
Information source: The Catholic University of Korea
ClinicalTrials.gov processed this data on August 23, 2015 Link to the current ClinicalTrials.gov record.
Condition(s) targeted: Electrodiagnosis
Intervention: vapocoolant spray (Device); topical anesthetic cream (Drug)
Phase: Phase 4
Status: Completed
Sponsored by: The Catholic University of Korea Official(s) and/or principal investigator(s): SangHyun Kim, Professor, Principal Investigator, Affiliation: Department of rehabilitation, Soon chun hyang university hospital Bucheon
Summary
The purpose of this study is to compare the effects of vapocoolant spray and topical
lidocaine 2. 5% + prilocaine 2. 5% cream (EMLA) on reducing pain during needle
electromyography.
Clinical Details
Official title: Comparison of the Effects of Vapocoolant Spray and Topical Anesthetic Cream on Pain During Needle Electromyography: a Randomized Controlled Clinical Trial
Study design: Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Supportive Care
Primary outcome: visual analogue scale, 5 point Likert scale
Detailed description:
The study was conducted on patients with patients that underwent needle EMGs in the lower
extremity between July and August 2011 at the university hospital. The patients were divided
into a total of three groups by random assignment: a control group that did not receive
pretreatment, a group that received ethyl chloride vapocoolant spray and a group that
received topical anesthetic cream (EMLA cream®).The patients with spray group, they were
sprayed with ethyl chloride vapocoolant spray for 5 seconds from a distance of 30 cm just
before the needle EMG, and patients with EMLA cream, they received an application of topical
anesthetic cream on the needle electrode insertion site 60 minutes before the needle EMG.
The 37-mm monopolar needle electrode was vertically inserted into the medial head of the
gastrocnemius muscle in all patients.
To assess the degree of pain for each group, patients were asked to indicate their level of
pain on a 100 mm VAS (0, no pain; 100, worst intolerable pain) after the needle EMG in the
gastrocnemius muscle.
In both experimental groups, a 5-point Likert scale was used to evaluate patient
satisfaction with the pain reduction method used and their willingness to use the same
analgesic method in another EMG.
Eligibility
Minimum age: 19 Years.
Maximum age: 70 Years.
Gender(s): Both.
Criteria:
Inclusion Criteria:
- Patients who had a normal schedule of needle EMGs in the lower extremity.
Exclusion Criteria:
1. those who refused to participate in the experiment
2. those who were unable to understand a VAS and Likert scale
3. those with a history of allergic reaction to vapocoolant spray or lidocaine
4. those with a history of cold intolerance (Raynaud's syndrome, etc.)
5. those who took oral pain medications or used topical anesthetics within 24 hours of
the experiment
6. those who exhibited abnormal lower extremity sensation during the physical
examination or who showed pain on gastrocnemius
Locations and Contacts
Soonc chun hyang university hospital Bucheon, Bucheon-si, Gyeonngi-do 420-767, Korea, Republic of
Additional Information
Starting date: July 2011
Last updated: June 19, 2012
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