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Moinzadeh P, Aberer E, Ahmadi-Simab K, Blank N, Distler JHW, Fierlbeck G, Genth E, Guenther C, Hein R, Henes J, Herich L, Herrgott I, Koetter I, Kreuter A, Krieg T, Kuhr K, Lorenz HM, Meier F, Melchers I, Mensing H, Mueller-Ladner U, Pfeiffer C, Riemekasten G, Sárdy M, Schmalzing M, Sunderkoetter C, Susok L, Tarner IH, Vaith P, Worm M, Wozel G, Zeidler G, Hunzelmann N. Disease progression in systemic sclerosis-overlap syndrome is significantly different from limited and diffuse cutaneous systemic sclerosis. Ann Rheum Dis 2014; 74:730-7. [PMID: 24389298 PMCID: PMC4392314 DOI: 10.1136/annrheumdis-2013-204487] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Systemic sclerosis (SSc)-overlap syndromes are a very heterogeneous and remarkable subgroup of SSc-patients, who present at least two connective tissue diseases (CTD) at the same time, usually with a specific autoantibody status. OBJECTIVES To determine whether patients, classified as overlap syndromes, show a disease course different from patients with limited SSc (lcSSc) or diffuse cutaneous SSc (dcSSc). METHODS The data of 3240 prospectively included patients, registered in the database of the German Network for Systemic Scleroderma and followed between 2003 and 2013, were analysed. RESULTS Among 3240 registered patients, 10% were diagnosed as SSc-overlap syndrome. Of these, 82.5% were female. SSc-overlap patients had a mean age of 48±1.2 years and carried significantly more often 'other antibodies' (68.0%; p<0.0001), including anti-U1RNP, -PmScl, -Ro, -La, as well as anti-Jo-1 and -Ku antibodies. These patients developed musculoskeletal involvement earlier and more frequently (62.5%) than patients diagnosed as lcSSc (32.2%) or dcSSc (43.3%) (p<0.0001). The onset of lung fibrosis and heart involvement in SSc-overlap patients was significantly earlier than in patients with lcSSc and occurred later than in patients with dcSSc. Oesophagus, kidney and PH progression was similar to lcSSc patients, whereas dcSSc patients had a significantly earlier onset. CONCLUSIONS These data support the concept that SSc-overlap syndromes should be regarded as a separate SSc subset, distinct from lcSSc and dcSSc, due to a different progression of the disease, different proportional distribution of specific autoantibodies, and of different organ involvement.
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Affiliation(s)
- Pia Moinzadeh
- Department of Dermatology, Cologne University Hospital, Cologne, Germany
| | - Elisabeth Aberer
- Department of Dermatology, Medical University of Graz, Graz, Germany
| | | | - Norbert Blank
- Department of Internal Medicine, Division of Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Joerg H W Distler
- Department of Rheumatology, University of Erlangen, Erlangen, Germany
| | | | - Ekkehard Genth
- Department of Rheumatology, Clinic of Rheumatology of Aachen, Aachen, Germany
| | - Claudia Guenther
- Department of Dermatology, University-Hospital Carl Gustav Carus, Dresden, Germany
| | - Ruediger Hein
- Department of Dermatology, Munich University of Technology, Munich, Germany
| | - Joerg Henes
- Department of Rheumatology, University of Tuebingen, Tuebingen, Germany
| | - Lena Herich
- Institute of Medical Statistics, Informatics and Epidemiology, University of Cologne, Cologne, Germany
| | - Ilka Herrgott
- Department of Dermatology and Venereology, University of Muenster, Muenster, Germany
| | - Ina Koetter
- Department of Internal Medicine and Nephrology (Centre for interdisciplinary Rheumatology), Robert-Bosch-Hospital, Stuttgart, Germany
| | - Alexander Kreuter
- Department of Dermatology, Helios Clinic Oberhausen, Oberhausen, Germany
| | - Thomas Krieg
- Department of Dermatology, Cologne University Hospital, Cologne, Germany
| | - Kathrin Kuhr
- Institute of Medical Statistics, Informatics and Epidemiology, University of Cologne, Cologne, Germany
| | - Hanns-Martin Lorenz
- Department of Haemato-Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Florian Meier
- Department of Rheumatology and Clinical Immunology, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Inga Melchers
- Clinical Research Unit for Rheumatology, University Medical Center Freiburg, Freiburg, Germany
| | | | - Ulf Mueller-Ladner
- Department of Rheumatology and Clinical Immunology, Kerckhoff Clinic, Bad Nauheim, Germany
| | | | - Gabriela Riemekasten
- Department of Rheumatology and Clinical Immunology, University of Berlin, Charité, Germany
| | - Miklós Sárdy
- Department of Dermatology and Allergology, Ludwig Maximilian University, Munich, Germany
| | - Marc Schmalzing
- Department of Rheumatology, University of Tuebingen, Tuebingen, Germany
| | - Cord Sunderkoetter
- Department of Dermatology and Venereology, University of Muenster, Muenster, Germany
| | - Laura Susok
- Department of Dermatology and Venereology, Ruhr University Bochum, Bochum, Germany
| | - Ingo H Tarner
- Department of Rheumatology and Clinical Immunology, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Peter Vaith
- Department of Rheumatology and Clinical Immunology, University Medical Center Freiburg, Freiburg, Germany
| | - Margitta Worm
- Department of Dermatology and Venerology, University of Berlin, Charité, Berlin, Germany
| | - Gottfried Wozel
- Department of Dermatology, University-Hospital Carl Gustav Carus, Dresden, Germany
| | - Gabriele Zeidler
- Department of Rheumatology, Johanniter-Hospital, Treuenbrietzen, Germany
| | - Nicolas Hunzelmann
- Department of Dermatology, Cologne University Hospital, Cologne, Germany
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