AI Article Synopsis
- The study developed a thermographic model to compare the hands of healthy individuals with those of patients suffering from freezing fingers syndrome and different types of Raynaud's phenomenon.
- Researchers analyzed 74 subjects split into different groups (freezing hands symptoms, primary Raynaud’s phenomenon, and limited scleroderma) along with a control group of 69 healthy volunteers.
- Key findings indicated that healthy hands have symmetrical temperature measurements, while patients with freezing symptoms and Raynaud's phenomenon show significant temperature differences, suggesting specific cut-off points for diagnosis.
Article Abstract
The aim of the present study was to establish a thermographic model of healthy subjects' hands and compare it with a model of the hands of patients with freezing fingers syndrome, a group usually regarded as a healthy population. A further aim was to establish the thermographic parameters that distinguish primary Raynaud's phenomenon (RP) from secondary RP. The study was conducted on a group of 74 subjects, divided into 3 groups: patients with freezing hands symptoms (G1), those with primary RP (G2), and those with limited scleroderma (G3). In addition, 69 healthy volunteers served as a control group (G4). The most distinctive features of healthy subjects' hands are the thermal symmetry between left to right measurements (ΔT<0.5°C) and between mean temperatures of the metacarpus and digits (ΔT<0.5°C (1°C maximum)). A negative correlation was found between mean hands temperature and age of subjects in G4 (p<0.0001). All the temperatures observed in G4 subjects were significantly higher than among patients in G1, G2 and G3 (p<0.001). No significant differences were found between mean temperatures in G2 and G3. RP should be suspected when differences between mean temperatures of the metacarpus and digits are ≥to 3ºC. Moreover, we suggest that a cut-off point >1ºC is established for subjects with "freezing" symptoms.
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| http://dx.doi.org/10.2340/00015555-1508 | DOI Listing |
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