Nail Diseases
Conditions
Keywords
Nails, Thermomechanical stimulation, Intralesional injection
Brief summary
The purpose of this study is to assess the efficacy and safety of a thermomechanical device delivering vibration and cold stimuli in lowering pain during intramatricial nail injections
Interventions
DEVICEExternal thermomechanical device delivering cold and vibration stimuli
the thermomechanical device will be placed on the digit 2 cm proximally to the injection site with the ice wings frozen and the vibration mechanism switched on, delivering vibration and cold stimuli to the area for 30 seconds before the intramatricial injection and until needle withdrawal
DEVICEExternal thermomechanical device without delivering cold and vibration stimuli
the thermomechanical device will be placed on the digit 2 cm proximally to the injection site with the ice wings at unfrozen and the vibration mechanism switched off, for 30 seconds before the intramatricial injection and until needle withdrawal
DRUGEthyl chloride skin refrigerant spray
Ethyl chloride skin refrigerant spray is applied to the area of injection for 3 seconds immediately before needle insertion
Sponsors
Weill Medical College of Cornell University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Men and women aged 18 years or older * Must understand and voluntarily sign an informed consent form * All patients undergoing intramatricial nail injections at the Weill Cornell Medicine (WCM) Department of Dermatology * Willingness to participate in the study
Exclusion criteria
* Inability of the patient to provide written informed consent for any reason * Failure to have nail injection performed * Likely inability to comply with the study protocol or cooperate fully with the research team
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The level of pain and change in pain between each time point will be assessed using the Wong-Baker FACES scale with use of thermomechanical device delivering stimuli, without delivering stimuli, and with use of ethyl chloride skin refrigerant spray. | prior to treatment, immediately after the needle insertion, during infiltration and 5 seconds after needle extraction | Pain will be self-reported, using the Wong-Baker FACES (0-10, with 0 representing absence of pain and 10 unbearable pain). Participants will be questioned about their level of pain in their nail prior to treatment, immediately after the needle insertion, during infiltration, and 5 seconds after needle extraction |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of participants with at least one adverse event | Patients will be followed for 3 days following their nail injection | Adverse events will only include those that are determined to be related to the study device |
Countries
United States
Outcome results
None listed