Vibratory Anesthesia for Trigger Finger
Recruiting in Palo Alto (17 mi)
+1 other location
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 4
Recruiting
Sponsor: University of Arizona
Disqualifiers: Decreased light touch sensation, others
No Placebo Group
Prior Safety Data
Trial Summary
What is the purpose of this trial?This study aims to compare the effectiveness of the use of no topical anesthesia, topical coolant, and the use of vibration in the reduction of pain during trigger finger injections. This will be done by randomizing patients who are diagnosed with trigger finger, warrant and choose to continue with a steroid injection into each of the respective anesthetic (or lack thereof) methods described. After conducting this and gathering data on the subjects pain felt, we will compare the analgesia from each of the anesthetic methods.
Will I have to stop taking my current medications?
The trial information does not specify whether you need to stop taking your current medications.
What data supports the effectiveness of the treatment Vibratory Anesthesia for Trigger Finger?
Research suggests that both vibratory anesthesia and cold spray anesthesia, like ethyl chloride, can reduce pain during injections, as seen in studies involving hand and upper extremity procedures.
12345Is vibratory anesthesia using ethyl chloride spray safe for humans?
Ethyl chloride spray is generally safe for use as a local anesthetic, but it can cause frostbite, skin irritation, and inhalation toxicity. Rarely, it may cause an allergic skin reaction.
23678How does vibratory anesthesia treatment for trigger finger differ from other treatments?
Vibratory anesthesia is unique because it uses vibration to reduce pain during procedures, unlike traditional methods like vapocoolant sprays or local anesthetics, which may not be as effective or have potential side effects. This approach is noninvasive and aims to make injections more tolerable by minimizing discomfort through the gate-control theory, which suggests that vibration can interfere with pain signals.
2591011Eligibility Criteria
This trial is for healthy adults diagnosed with trigger finger who need a steroid injection as part of their treatment. It's not suitable for those without a trigger finger diagnosis, those who don't require an injection, or individuals with reduced touch sensation in the affected area.Inclusion Criteria
I am healthy but need an injection for my trigger finger.
Exclusion Criteria
I do not have trigger finger or need an injection for it.
Subjects with known decreased light touch sensation in the territory of the trigger finger injection
Trial Timeline
Screening
Participants are screened for eligibility to participate in the trial
1-2 weeks
Treatment
Participants receive trigger finger injections with either no topical anesthesia, topical coolant, or vibration to assess pain reduction
1 day
1 visit (in-person)
Follow-up
Participants are monitored for pain levels immediately after the injection using a visual analog pain scale
Immediately after treatment
Participant Groups
The study compares three methods to reduce pain during trigger finger injections: no anesthesia, a topical coolant spray (Gebauers Ethyl Chloride), and vibration anesthesia device by Blaine Labs. Patients will be randomly assigned to one of these methods.
3Treatment groups
Experimental Treatment
Active Control
Group I: VibrationExperimental Treatment1 Intervention
The subject will have a vibration device placed just proximal to the site of the trigger finger injection concurrent with the administration of the injection.
Group II: Topical coolantExperimental Treatment1 Intervention
The subject will have 5 seconds of sterile ethyl chloride sprayed at the site of the trigger finger injections just prior to the administration of the injection.
Group III: No topical anesthesiaActive Control1 Intervention
No topical anesthesia will be given during the trigger finger injection.
Find a Clinic Near You
Research Locations NearbySelect from list below to view details:
Banner UMC North Hills ClinicTucson, AZ
Banner University Alvernon ClinicTucson, AZ
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Who Is Running the Clinical Trial?
University of ArizonaLead Sponsor
References
Effects of ethyl chloride spray on pain and parameters of needle electromyography in the upper extremity. [2016]The aim of this study was to compare the effects of ethyl chloride and placebo sprays for reducing pain induced by needle electromyography and changes in parameters of the motor unit action potential during needle electromyography of the upper extremity.
Use and Effectiveness of Ethyl Chloride for Hand Injections. [2017]Limited literature supports using ethyl chloride topical spray as an anesthetic for hand injections whereas documented risks include frostbite, skin irritation, and inhalation toxicity. We hypothesize that ethyl chloride spray imparts no benefit to patients' perception of pain or anxiety for routine hand injections.
[Ethyl chloride aerosol spray for local anesthesia before arterial puncture: randomized placebo-controlled trial]. [2018]To compare the efficacy of an ethyl chloride aerosol spray to a placebo spray applied in the emergency department to the skin to reduce pain from arterial puncture for blood gas analysis.
Skin sterility after application of ethyl chloride spray. [2016]Ethyl chloride topical anesthetic spray is labeled as nonsterile, yet it is widely used during injection procedures performed in an outpatient setting. The purpose of this study was to investigate the sterility of ethyl chloride topical anesthetic spray applied before an injection. Our a priori hypothesis was that application of the spray after the skin has been prepared would not alter the sterility of the injection site.
Vibratory Anesthesia's Effect on Pain Perception in Upper Extremity Corticosteroid Injections. [2022]Prior studies have investigated the use of vibratory anesthesia for injectional pain reduction in dental, ophthalmologic, and plastic surgery literature. Scarce research has been aimed at determining the effect of vibratory anesthesia on hand and upper extremity injections. It is common practice for surgeons to use vapocoolant spray prior to injection, but there is no strong evidence to support its widespread use. No prior studies have performed a head-to-head analysis of vibratory anesthesia versus vapocoolant spray effect on injectional pain. We hypothesized that both vibratory anesthesia and cold spray anesthesia decrease patient-reported pain of corticosteroid injections compared with injection without anesthesia.
Ethyl chloride: an ineffective bacteriostatic or cidal agent for arthrocentesis. [2017]The local and general anesthetic properties of ethyl chloride have been well delineated. The purpose of this study was to determine if ethyl chloride, when used as a local anesthetic, had any bacteriostatic or cidal effects on the normal array of skin flora. Fifteen different aerobic bacteria or fungi were collected from pure cultures. A total of 30 specimens were sprayed; 2 specimens of each of the 15 bacteria were sprayed with ethyl chloride for both 5 and 10 seconds. These specimens then were restreaked once the ethyl chloride had evaporated, and were incubated for 24 hours. At 24 hours the cultures were checked and found to have no significant growth inhibitions. It is thus concluded that ethyl chloride alone does not have any bacteriostatic or cidal effects on these commonly found skin flora.
Ethyl chloride and venepuncture pain: a comparison with intradermal lidocaine. [2018]One hundred and twenty unpremedicated patients undergoing gynaecological surgery were randomly allocated to one of three equal treatment groups to assess the effectiveness of ethyl chloride in producing instant skin anaesthesia to prevent the pain of venepuncture from a 20 G cannula. They received either no anaesthetic, 0.2 ml one per cent lidocaine plain intradermally or a ten-second spray of ethyl chloride at the cannulation site. Ethyl chloride produced skin anaesthesia that significantly reduced the pain of venepuncture. However, it was not as effective as intradermal lidocaine. It had no effect on vein visualisation or ease of cannulation. Ethyl chloride can be recommended as a method of producing instant skin anaesthesia.
Allergic contact dermatitis from ethyl chloride and sensitization to dichlorodifluoromethane (CFC 12). [2019]Despite the widespread use of ethyl chloride as a local anesthetic and chlorofluorocarbons as propellants in medical and cosmetic aerosols, contact allergy to these 2 gases is rare. In a 30-year-old woman, an unusual itchy dermatitis appeared at all skin sites where a medical aerosol containing ethyl chloride had been briefly applied. Subsequent re-exposure to the spray and patch tests revealed contact sensitization to ethyl chloride and dichlorodifluoromethane (CFC 12). Histologic and immunohistochemical examinations of the test reaction were consistent with a T-cell-mediated allergic reaction. The low incidence of contact allergy to ethyl chloride and chlorofluorocarbons may be due to the rapid evaporation of these volatile gases, thus preventing intense and prolonged contact with the skin and consequently contact sensitization. A modified patch test procedure using perforated plastic chambers to allow gas evaporation is necessary to test volatile agents.
Lack of pain reduction by a vibrating local anesthetic attachment: a pilot study. [2022]A vibrating dental local anesthesia attachment (Vibraject, LLC, Calif) based on the concept of the gate-control theory has been used in clinical practice. The theoretical advantage of the vibrating needle is that it reduces the injection pain. We evaluated the effectiveness of Vibraject in combination with an electrical injection device. Injections were given into the alveolar mucosa adjacent to the root apex of the maxillary lateral incisor in 10 volunteers. Vibraject was randomly applied to either the left or right side of the injection. No statistically significant decrease in pain scores was found at needle insertion or anesthetic injection. The clinical efficacy of Vibraject remains controversial.
Use of a Dental Vibration Tool to Reduce Pain From Digital Blocks: A Randomized Controlled Trial. [2019]The infiltration of local anesthetic is consistently described as painful by patients. Vibration anesthesia has been studied in the dental literature as a promising tool to alleviate the pain from dental nerve blocks. Many of these studies used a specific device, the DentalVibe. To date, there have not been any studies applying this technology to digital blocks of the hand in human subjects. We hypothesized that the use of microvibratory stimulation during digital blocks of the hand would decrease pain reported by patients.
Vibration anesthesia: a noninvasive method of reducing discomfort prior to dermatologic procedures. [2022]In some dermatologic and cosmetic procedures, local anesthesia is not sufficient for relieving pain; often patients are averse to injections. We propose vibration anesthesia, the use of vibration delivered with commercially available inexpensive massagers to reduce discomfort. We find the analgesic effect of vibration helpful in minimizing pain in patients undergoing injections of botulinum toxin type A treatment for hyperhidrosis, injection of filler substances such as Restylane and Juvederm, laser therapy for leg veins, nail-fold injections, Q-switched laser treatment of tattoos, incision and drainage of abscesses, and cautery of facial warts, as well as facilitating anesthetic injections for needle-phobic patients. We expect that additional uses will be found as experience with this modality grows. Although the use of vibration anesthesia generally does not eliminate pain completely, it can serve to make the injection or procedure much more tolerable.