Temperature changes in rheumatoid hand treated with nitrogen vapors and cold airReport as inadecuate

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Rheumatology International

, Volume 32, Issue 10, pp 2987–2992

First Online: 07 September 2011Received: 11 February 2011Accepted: 21 August 2011


The aim of the study was the thermovisual comparison of mean temperature of hand surface changes after local cryotherapy with vapors of nitrogen −160°C and cold air −30°C. Forty-seven patients with rheumatoid arthritis 39 women and 8 men; average age 56.2 ± 10.5 years were included in the study. They had the application of topic cryotherapy using nitrogen vapors or cold air on one hand. Main outcome measure was surface temperature of dorsal sides of the cooled and contralateral hands. Thermal images of both hands were taken before and up to 3 h after the treatment. One minute after application, nitrogen vapors induced decrease in surface skin temperature of the cooled hand from 28.9 ± 1.8°C to 17.9 ± 2.2°C, P < 0.05, whereas cold air from 29.4 ± 2.4°C to 23.1 ± 2.2°C, P < 0.05. However, significantly lower temperature was obtained with vapors of nitrogen P < 0.05. Just after the treatment, a rapid rewarming occurred and hands reached baseline temperature in 15 min in both applications and they did not differ till the end of the procedure. Both nitrogen vapors and cold air induce similar temperature changes in hands with the exclusion of temperature obtained 1 min after the treatment. Changes in non-cooled hands indicate contralateral reaction.

KeywordsCryotherapy Rheumatoid arthritis Thermography Contralateral reaction Rehabilitation  Download fulltext PDF

Author: Paweł Korman - Anna Straburzyńska-Lupa - Wojciech Romanowski - Andrzej Trafarski

Source: https://link.springer.com/

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