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Decreased Pain Threshold in Juvenile Idiopathic Arthritis: A Cross-sectional Study.
MedLine Citation:
PMID:  23637324     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To examine the pain threshold in children with juvenile idiopathic arthritis (JIA) compared with healthy children by using a digital pressure algometer. METHODS: Fifty-eight children with JIA born between 1995 and 2000 and 91 age-related healthy children participated in the study. We used a digital pressure algometer to measure the pain threshold on 17 symmetric, anatomically predefined joint-related or bone-related areas. All children were asked to rate their current pain on a Faces Pain Scale, and parents of children with JIA were asked to complete a parental revised version of the Child Health Assessment Questionnaire (CHAQ-R). Clinical data were registered on children with JIA. RESULTS: The pain threshold was significantly lower among children with JIA (total mean PT = 1.33 ± 0.69 kg/cm(2)) when compared with the healthy control group (total mean PT = 1.77 ± 0.67 kg/cm(2)). The same pattern was found in all areas measured, including negative control areas that are normally unaffected in JIA (p = 0.0001 to 0.005). Overall, the pain threshold was 34% lower in females than in males in both groups (p < 0.0001). We found no correlation between pain threshold and age, current pain experience, disease duration, or disease activity. CONCLUSION: Children with JIA had a substantially lower pain threshold even in areas usually unaffected by arthritis. Our findings suggest that JIA alters the pain perception and causes decreased pain threshold.
Authors:
Anne Leegaard; Johanne Jeppesen Lomholt; Mikael Thastum; Troels Herlin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-5-1
Journal Detail:
Title:  The Journal of rheumatology     Volume:  -     ISSN:  0315-162X     ISO Abbreviation:  J. Rheumatol.     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7501984     Medline TA:  J Rheumatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
From the Department of Pediatrics, Aarhus University Hospital, and the Department of Psychology, University of Aarhus, Aarhus, Denmark.
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