Lymphedema, Secondary
Conditions
Keywords
tissue dielectric constant, head and neck lymphedema, lymphedema, reference values
Brief summary
Selected measurements in healthy persons of skin tissue dielectric constant as reference values for subsequent use to evaluate patients with head and neck lymphedema.
Detailed description
Skin tissue dielectric constant (TDC) measurements will non-invasively be made bilaterally at two neck sites, bilaterally on two forearm sites and one site at the chin sub-mental area. Measurements are made with subjects fully clothed and seated. Measurements are made in triplicate and averaged at each site. Full measurements take about 5-7 minutest to complete. Data will be analyzed to determine the neck-to-arm ratios and chin-to-arm ratios to establish normal ranges of these parameters for subsequent use as comparisons to evaluate and track changes in patients with head and neck lymphedema.
Interventions
DIAGNOSTIC_TESTTDC
measurements
Sponsors
Nova Southeastern University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Healthy with no current or past skin conditions affecting neck or arms
Exclusion criteria
1. Known to have diabetes of any type. 2. Having facial or neck hair that prohibits accurate measurements
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Neck-to-Arm TDC ratio | one year | Neck-to-Arm TDC ratio |
| Sub-Mental-to-Arm TDC ratio | one year | Sub-Mental-to-Arm TDC ratio |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Bilateral values and Variability in TDC values | one year | Bilateral values and Variability in TDC values |
Countries
United States
Outcome results
None listed