Thermal Disparity between Fingers after Cold-water Immersion of Hands: A Useful Indicator of Disturbed Peripheral Circulation in Raynaud Phenomenon Patients
Horikoshi M, Inokuma S, Kijima Y, Kobuna M, Miura Y, Okada R, Kobayashi S
Internal medicine (Tokyo, Japan) · 20 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Case-control study (classified by our AI screen)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Funding not disclosed
Publication
- Published
- 2016-01-01 · Intern Med · vol. 55 · issue 5 · pp. 461–466
- Publisher
- The Japanese Society of Internal Medicine
- Cited
- 44 citations · more than 92% of similar papers · 3.6× the field average
- Impact
- Top 10% most cited in its field
- References
- 17 works
- Access
- Open access (free to publish)
- Research areas
- Infrared Thermography in Medicine · Systemic Sclerosis and Related Diseases · Diagnosis and Treatment of Venous Diseases
- Keywords
- Medicine, Skin temperature, Dorsum, Receiver operating characteristic, Nail (fastener), Peripheral, Coefficient of variation, Surgery, Internal medicine, Anatomy, Dermatology
- MeSH
- hand, fingers, humans, raynaud disease, water, thermography, retrospective studies, predictive value of tests, roc curve, skin temperature, blood circulation, adult, middle aged, female, cold temperature
7 authors
From JP
- Masanobu HorikoshiJapanese Red Cross Medical Center
- Shigeko InokumaJapanese Red Cross Medical Center
- Yasuo KijimaJapanese Red Cross Medical Center
- Mika KobunaJapanese Red Cross Medical Center
- Yoko MiuraJapanese Red Cross Medical Center
- Rika OkadaJapanese Red Cross Medical Center
Abstract
Objective
To devise an effective method to assess the peripheral circulation using an infrared thermographic analysis.
Methods
Sequential measurements of the skin temperature before and after cold-water immersion of the hands were analyzed by a thermographic examination in healthy controls and patients diagnosed to have Raynaud phenomenon (RP). The skin temperatures of the dorsum of all fingernail folds and the metacarpophalangeal (MCP) joints were measured at baseline. Then the hands were immersed in 10°C water for 10 s, and the skin temperatures were measured at 0, 3, 5, 10, 15, 20 and 30 min after immersion. The mean temperature, recovery rate and disparity (coefficient of variation) of the nail fold temperatures were calculated. The distal-dorsal difference (DDD) was calculated by subtracting the mean MCP temperature from the mean nail fold temperature. Receiver operating characteristic (ROC) curves were generated to compare these parameters in terms of their capability to differentiate patients with RP.
Results
Thirty-one RP patients and 25 controls were included in the study. The baseline nail fold temperature was significantly lower in RP patients than in the controls. The RP patients had a lower recovery rate, lower DDD and higher disparity than the controls. The disparity and DDD were negatively correlated (r=-0.63, p<0.01), whereas the recovery rate and DDD were positively correlated (r=0.91, p<0.01). The ROC curve analysis revealed that the disparity in nail fold temperature effectively differentiated RP patients from controls (area under the curve: recovery rate 0.72; disparity 0.88; DDD 0.79).
Conclusion
The temperature disparity between fingers is a useful thermographic parameter for evaluating disturbed peripheral circulation in patients with Raynaud phenomenon.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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