Acute Pain Clinical Trial
— TENS-EDOfficial title:
Use of Transcutaneous Electrical Nerve Stimulation (TENS) for Acute Low Back Pain in the Emergency Department
NCT number | NCT05601843 |
Other study ID # | H21-02812 |
Secondary ID | |
Status | Completed |
Phase | N/A |
First received | |
Last updated | |
Start date | May 8, 2023 |
Est. completion date | May 19, 2023 |
Verified date | June 2023 |
Source | Vancouver Island Health Authority |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The effectiveness of Transcutaneous Electrical Nerve Stimulation (TENS) to reduce pain scores for patients with acute back pain in an ambulatory emergency department (ED) population will be examined in this dual-center, cluster randomized, controlled, open-label study.
Status | Completed |
Enrollment | 25 |
Est. completion date | May 19, 2023 |
Est. primary completion date | May 19, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Age 18 years or older. - Acute or acute-on-chronic back pain, defined as less than 3 weeks of increased symptoms. - Canadian Triage and Acuity Scale (CTAS) level 3-5 in ambulatory section of emergency department8. - Projected wait-time of at least 30 minutes. - Comfortable with communication in English. Unfortunately, currently, we do not have the capacity or funding to hire a translator to translate our study documents or communicate with potential study participants. Exclusion Criteria: - Back pain "red flags" on initial history. These include: - Patient reported fever. - Recent direct blunt or penetrating trauma to the back, perceived by the patient to be the cause of acute pain or exacerbation of chronic pain. - Bilateral radicular symptoms. - Changes in ability to empty bladder or urinary incontinence since onset of back pain. - Incontinence of stool. - Saddle anesthesia. - Intravenous drug use within the last 30 days. - History of spinal cord injury. - Epilepsy. - Abnormal triage vital signs: - Temperature greater than 38 C - Abnormal blood pressure (BP) defined as systolic BP less than 90 or over 180. - Tachypnea with respiratory rate (RR) greater than 22. - Active pregnancy (patient warning on product label) - Canadian Triage and Acuity Scale (CTAS) level 1-2. - Implanted pacemaker or neurostimulation device. - TENS unit in use by another patient at time of screening - Wound, abrasion, rash over where TENS pads will be placed. |
Country | Name | City | State |
---|---|---|---|
Canada | Royal Jubilee Hospital | Victoria | British Columbia |
Lead Sponsor | Collaborator |
---|---|
Sam Brophy |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Adverse effects | Adverse effects will also be gathered, including skin irritation and pad removal due to discomfort. Any other suspected adverse events will be recorded and reported in a narrative format. | Immediately after intervention. | |
Primary | Pain Score Difference | Pain score as a primary outcome will be assessed by determining the difference in VAS between T0 and T60. VAS is a validated tool for measuring subject reports of pain in a variety of patient care settings. T60 was chosen as the primary endpoint as this was thought to allow sufficient time for standard care (ie. pharmacotherapy) to take effect. A clinically significant reduction of pain was defined as 30% on VAS, based on prior literature. | Change from baseline score at 60 minutes of study participation. | |
Secondary | Pain score at T30 | As a secondary outcome, pain score reduction at T30 will be assessed. This is to determine how effective TENS is at reduction pain immediately when finishing treatment. Similarly, a 30% reduction of pain score is considered clinically significant. No further assessment points will be used due to the variability of wait-times and high likelihood of loss to follow-up with later assessment points. We currently do not have capacity for telephone follow-up the next day. | After 30 minutes of study participation. | |
Secondary | Opioid requirements | A further secondary outcome is opioid requirements while in the ED, calculated by Oral Morphine Equivalents (OMEs). The duration of 8 hours or at time of discharge was determined to be an adequate length of time to allow for appropriate up-titration of opioids to achieve adequate pain treatment. Other forms of analgesia (ie. NSAIDs and acetaminophen) will not be tallied, due to the challenge of reliably interpreting the data - most patients have taken some form of over-the-counter analgesia prior to their ED encounter and different NSAIDs are often used without a reliable way of determining comparable such as OMEs for opioids. | After 60 minutes of study participation. | |
Secondary | ED Return Visits | Return visits to the ED within 2 weeks will also be compared between groups, specifically analyzing the proportion of repeat presentations with a triage complaint of "back pain." This will be done by accessing the EMR of each patient in the trial through by the PI or CIs. Presentations to all EDs in the Island Health region are available upon accessing our local EMR (PowerChart). No further details other than initial triage complaint will be collected on these repeat visits. | Within 2 weeks of study participation. |
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