Croce, L

Draheim, N

Haas, JP

Häfner, R

Reckzeh, J

Schnöbel-Müller, E

English

PubMed

N Draheim

J Reckzeh

L Croce

R Häfner

E Schnöbel-Müller

JP Haas

Crossref

Pediatric Rheumatology

Suptypes of JIA have different susceptibility for developing pain amplification syndrome

Haas JP

Schnöbel-Müller E

Häfner R

Croce L

Reckzeh J

Draheim N

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POSTER PRESENTATION Open Access
Suptypes of JIA have different susceptibility for
developing pain amplification syndrome
N Draheim, J Reckzeh, L Croce, R Häfner, E Schnöbel-Müller, JP Haas*
From 18th Pediatric Rheumatology European Society (PReS) Congress
Bruges, Belgium. 14-18 September 2011
Background
Primary pain amplification syndrome (PAS [Juvenile
fibromyalgia]) is an important differential diagnosis in
patients suspected to have JIA. Secondary PAS may
occur within the course of JIA after remission.
Aim
Characterizing the occurrence of JIA in a group of
patients suffering from PAS.
Methods
Retrospective analysis in 319 patients with PAS admitted
to our unit for chronic pain in 2010. Patients` medical
histories have been worked up concerning chronic
inflammatory diseases. The observed frequencies of JIA
subtypes have been compared to frequencies recorded
by the national German registry for rheumatic diseases
(Deutsches Rheumaforschungszentrum DRFZ 2008).
Results
The medical history reported JIA in 61 patients (19%)
and chronic multifocal osteomyelitis (CRMO) in 9 (3%)
of the patients. (Table 1).
More than one third of the histories were not conclu-
sive for the diagnosis of JIA according to the ILAR cri-
teria, mainly because arthritis had not been assured to
be present for more than 6 weeks.
Conclusion
Polyarticular and Psoriasis JIA seem to have an increased
risk to develop secondary PAS. Primary PAS has to be
suspected in a number of patients diagnosed as PAS sec-
ondary to JIA as arthritis never had been proven conclu-
sively. There are a remarkable number of CRMO patients
within the group of secondary PAS patients.
Published: 14 September 2011
doi:10.1186/1546-0096-9-S1-P222
Cite this article as: Draheim et al.: Suptypes of JIA have different
susceptibility for developing pain amplification syndrome. Pediatric
Rheumatology 2011 9(Suppl 1):P222.
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* Correspondence: haas.johannes-peter@rummelsberger.net
Deutsches Zentrum für Kinder- und Jugendrheumatologie, Garmisch-
Partenkirchen, Germany
Table 1
Number
observed
%
observed
Number
expected
%
expected
Oligo-JIA 20 33 32 53
Poly-JIA 23 38 9 14
Psoriasis-JIA 11 18 5 8
Entesitis
associated-JIA
6 10 7 11
Systemic JIA 1 1,5 4 6
Draheim et al. Pediatric Rheumatology 2011, 9(Suppl 1):P222
http://www.ped-rheum.com/content/9/S1/P222
© 2011 Draheim et al; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in
any medium, provided the original work is properly cited.


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Suptypes of JIA have different susceptibility for developing pain amplification syndrome

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