Skip to main content
Top
Published in: Clinical Rheumatology 3/2019

Open Access 01-03-2019 | Review Article

Axial spondyloarthritis in the USA: diagnostic challenges and missed opportunities

Authors: Abhijeet Danve, Atul Deodhar

Published in: Clinical Rheumatology | Issue 3/2019

Login to get access

Abstract

Axial spondyloarthritis (axSpA) is a chronic inflammatory rheumatic disease that primarily affects the sacroiliac joints and spine. Delayed or inadequate treatment may decrease quality of life and lead to poor long-term outcomes, including irreversible loss of spinal function. In this review, we discuss clinical practice related to axSpA within the USA, including prevalence, diagnosis, reasons for delayed/missed diagnosis, and suggestions for making early diagnosis. The US population prevalence of axSpA (0.9–1.4%) is higher than the diagnostic prevalence (0.2–0.7%). Although the estimated diagnostic delay for axSpA is 14 years in the USA, the disease can be identified earlier if appropriately preselected patients are quickly referred to rheumatologists. Only 37% of patients with ankylosing spondylitis in the USA are diagnosed by rheumatologists; the remaining 63% are diagnosed by primary care (26%), chiropractic/physical therapy (7%), orthopedic surgery (4%), pain clinics (4%), acute care (3%), and other settings (19%). To help reduce diagnostic delay, non–rheumatologist-healthcare professionals are urged to refer patients with back pain and ≥ 1 of 3 SpA features (HLA-B27 positivity, current inflammatory back pain, or x-ray/MRI evidence of sacroiliitis) to a rheumatologist. Prevalence and diagnosis rates of axSpA are disparate in the USA due to the lack of awareness and knowledge among non-rheumatologists. Progress has been made in identifying hurdles causing diagnostic delays. Public health initiatives are needed to guide primary care physicians, physical therapists, chiropractors, and other specialists seeing patients with chronic back pain on methods for suspecting or identifying axSpA and early referral to rheumatologists.
Literature
2.
go back to reference Sieper J, van der Heijde D, Landewé R, Brandt J, Burgos-Vagas R, Collantes-Estevez E, Dijkmans B, Dougados M, Khan MA, Leirisalo-Repo M, van der Linden S, Maksymowych WP, Mielants H, Olivieri I, Rudwaleit M (2009) New criteria for inflammatory back pain in patients with chronic back pain: a real patient exercise by experts from the Assessment of SpondyloArthritis international Society (ASAS). Ann Rheum Dis 68:784–788. https://doi.org/10.1136/ard.2008.101501 CrossRefPubMed Sieper J, van der Heijde D, Landewé R, Brandt J, Burgos-Vagas R, Collantes-Estevez E, Dijkmans B, Dougados M, Khan MA, Leirisalo-Repo M, van der Linden S, Maksymowych WP, Mielants H, Olivieri I, Rudwaleit M (2009) New criteria for inflammatory back pain in patients with chronic back pain: a real patient exercise by experts from the Assessment of SpondyloArthritis international Society (ASAS). Ann Rheum Dis 68:784–788. https://​doi.​org/​10.​1136/​ard.​2008.​101501 CrossRefPubMed
3.
go back to reference Keith MP (2012) Inflammatory back pain and the diagnosis of axial spondyloarthritis. Am J Orthop (Belle Mead NJ) 41:E166–E168 Keith MP (2012) Inflammatory back pain and the diagnosis of axial spondyloarthritis. Am J Orthop (Belle Mead NJ) 41:E166–E168
6.
go back to reference Ciurea A, Scherer A, Exer P, Bernhard J, Dudler J, Beyeler B, Kissling R, Stekhoven D, Rufibach K, Tamborrini G, Weiss B, Müller R, Nissen MJ, Michel BA, van der Heijde D, Dougados M, Boonen A, Weber U, Rheumatologists of the Swiss Clinical Quality Management Program for Axial Spondyloarthritis (2013) Tumor necrosis factor alpha inhibition in radiographic and nonradiographic axial spondyloarthritis: results from a large observational cohort. Arthritis Rheum 65:3096–3106. https://doi.org/10.1002/art.38140 CrossRefPubMed Ciurea A, Scherer A, Exer P, Bernhard J, Dudler J, Beyeler B, Kissling R, Stekhoven D, Rufibach K, Tamborrini G, Weiss B, Müller R, Nissen MJ, Michel BA, van der Heijde D, Dougados M, Boonen A, Weber U, Rheumatologists of the Swiss Clinical Quality Management Program for Axial Spondyloarthritis (2013) Tumor necrosis factor alpha inhibition in radiographic and nonradiographic axial spondyloarthritis: results from a large observational cohort. Arthritis Rheum 65:3096–3106. https://​doi.​org/​10.​1002/​art.​38140 CrossRefPubMed
7.
go back to reference Barkham N, Keen HI, Coates LC, O'Connor P, Hensor E, Fraser AD, Cawkwell LS, Bennett A, McGonagle D, Emery P (2009) Clinical and imaging efficacy of infliximab in HLA-B27-positive patients with magnetic resonance imaging-determined early sacroiliitis. Arthritis Rheum 60:946–954. https://doi.org/10.1002/art.24408 CrossRefPubMed Barkham N, Keen HI, Coates LC, O'Connor P, Hensor E, Fraser AD, Cawkwell LS, Bennett A, McGonagle D, Emery P (2009) Clinical and imaging efficacy of infliximab in HLA-B27-positive patients with magnetic resonance imaging-determined early sacroiliitis. Arthritis Rheum 60:946–954. https://​doi.​org/​10.​1002/​art.​24408 CrossRefPubMed
8.
go back to reference Braun J, Baraliakos X, Kiltz U (2016) Non-radiographic axial spondyloarthritis: a classification or a diagnosis? Clin Exp Rheumatol 34:S5–S6PubMed Braun J, Baraliakos X, Kiltz U (2016) Non-radiographic axial spondyloarthritis: a classification or a diagnosis? Clin Exp Rheumatol 34:S5–S6PubMed
11.
go back to reference Strand V, Rao SA, Shillington AC, Cifaldi MA, McGuire M, Ruderman EM (2013) Prevalence of axial spondyloarthritis in United States rheumatology practices: Assessment of SpondyloArthritis International Society criteria versus rheumatology expert clinical diagnosis. Arthritis Care Res (Hoboken) 65:1299–1306. https://doi.org/10.1002/acr.21994 CrossRef Strand V, Rao SA, Shillington AC, Cifaldi MA, McGuire M, Ruderman EM (2013) Prevalence of axial spondyloarthritis in United States rheumatology practices: Assessment of SpondyloArthritis International Society criteria versus rheumatology expert clinical diagnosis. Arthritis Care Res (Hoboken) 65:1299–1306. https://​doi.​org/​10.​1002/​acr.​21994 CrossRef
13.
17.
go back to reference Carter ET, McKenna CH, Brian DD, Kurland LT (1979) Epidemiology of ankylosing spondylitis in Rochester, Minnesota, 1935-1973. Arthritis Rheum 22:365–370CrossRefPubMed Carter ET, McKenna CH, Brian DD, Kurland LT (1979) Epidemiology of ankylosing spondylitis in Rochester, Minnesota, 1935-1973. Arthritis Rheum 22:365–370CrossRefPubMed
18.
go back to reference Carbone LD, Cooper C, Michet CJ, Atkinson EJ, O'Fallon WM, Melton LJ 3rd (1992) Ankylosing spondylitis in Rochester, Minnesota, 1935-1989. Is the epidemiology changing? Arthritis Rheum 35:1476–1482CrossRefPubMed Carbone LD, Cooper C, Michet CJ, Atkinson EJ, O'Fallon WM, Melton LJ 3rd (1992) Ankylosing spondylitis in Rochester, Minnesota, 1935-1989. Is the epidemiology changing? Arthritis Rheum 35:1476–1482CrossRefPubMed
19.
go back to reference Helmick CG, Felson DT, Lawrence RC, Gabriel S, Hirsch R, Kwoh CK, Liang MH, Kremers HM, Mayes MD, Merkel PA, Pillemer SR, Reveille JD, Stone JH, Workgroup NAD (2008) Estimates of the prevalence of arthritis and other rheumatic conditions in the United States. Part I. Arthritis Rheum 58:15–25. https://doi.org/10.1002/art.23177 CrossRef Helmick CG, Felson DT, Lawrence RC, Gabriel S, Hirsch R, Kwoh CK, Liang MH, Kremers HM, Mayes MD, Merkel PA, Pillemer SR, Reveille JD, Stone JH, Workgroup NAD (2008) Estimates of the prevalence of arthritis and other rheumatic conditions in the United States. Part I. Arthritis Rheum 58:15–25. https://​doi.​org/​10.​1002/​art.​23177 CrossRef
22.
go back to reference Bohn R, Cooney M, Deodhar A, Curtis JR, Golembesky A (2018) Incidence and prevalence of axial spondyloarthritis: methodologic challenges and gaps in the literature. Clin Exp Rheumatol 36:263–274PubMed Bohn R, Cooney M, Deodhar A, Curtis JR, Golembesky A (2018) Incidence and prevalence of axial spondyloarthritis: methodologic challenges and gaps in the literature. Clin Exp Rheumatol 36:263–274PubMed
27.
go back to reference Hurwitz EL, Li D, Guillen J, Schneider MJ, Stevans JM, Phillips RB, Phelan SP, Lewis EA, Armstrong RC, Vassilaki M (2016) Variations in patterns of utilization and charges for the care of low back pain in North Carolina, 2000 to 2009: a statewide claims' data analysis. J Manip Physiol Ther 39:252–262. https://doi.org/10.1016/j.jmpt.2016.02.006 CrossRef Hurwitz EL, Li D, Guillen J, Schneider MJ, Stevans JM, Phillips RB, Phelan SP, Lewis EA, Armstrong RC, Vassilaki M (2016) Variations in patterns of utilization and charges for the care of low back pain in North Carolina, 2000 to 2009: a statewide claims' data analysis. J Manip Physiol Ther 39:252–262. https://​doi.​org/​10.​1016/​j.​jmpt.​2016.​02.​006 CrossRef
30.
go back to reference Fallahi S, Jamshidi AR (2016) Diagnostic delay in ankylosing spondylitis: related factors and prognostic outcomes. Arch Rheumatol 31(x):i–vii Fallahi S, Jamshidi AR (2016) Diagnostic delay in ankylosing spondylitis: related factors and prognostic outcomes. Arch Rheumatol 31(x):i–vii
32.
go back to reference Manchikanti L, Singh V, Datta S, Cohen SP, Hirsch JA (2009) Comprehensive review of epidemiology, scope, and impact of spinal pain. Pain Physician 12:E35–E70 Manchikanti L, Singh V, Datta S, Cohen SP, Hirsch JA (2009) Comprehensive review of epidemiology, scope, and impact of spinal pain. Pain Physician 12:E35–E70
36.
go back to reference Slobodin G, Rosner I (2013) Indemonstrable axial spondyloarthritis: does it exist? Isr Med Assoc J 15:780–781PubMed Slobodin G, Rosner I (2013) Indemonstrable axial spondyloarthritis: does it exist? Isr Med Assoc J 15:780–781PubMed
37.
go back to reference Rudwaleit M, van der Heijde D, Landewé R, Listing J, Akkoc N, Brandt J, Braun J, Chou CT, Collantes-Estevez E, Dougados M, Huang F, Gu J, Khan MA, Kirazli Y, Maksymowych WP, Mielants H, Sørensen IJ, Ozgocmen S, Roussou E, Valle-Oñate R, Weber U, Wei J, Sieper J (2009) The development of Assessment of SpondyloArthritis international Society classification criteria for axial spondyloarthritis (part II): validation and final selection. Ann Rheum Dis 68:777–783. https://doi.org/10.1136/ard.2009.108233 CrossRefPubMed Rudwaleit M, van der Heijde D, Landewé R, Listing J, Akkoc N, Brandt J, Braun J, Chou CT, Collantes-Estevez E, Dougados M, Huang F, Gu J, Khan MA, Kirazli Y, Maksymowych WP, Mielants H, Sørensen IJ, Ozgocmen S, Roussou E, Valle-Oñate R, Weber U, Wei J, Sieper J (2009) The development of Assessment of SpondyloArthritis international Society classification criteria for axial spondyloarthritis (part II): validation and final selection. Ann Rheum Dis 68:777–783. https://​doi.​org/​10.​1136/​ard.​2009.​108233 CrossRefPubMed
38.
go back to reference van der Linden S, Valkenburg HA, Cats A (1984) Evaluation of diagnostic criteria for ankylosing spondylitis. A proposal for modification of the New York criteria. Arthritis Rheum 27:361–368CrossRef van der Linden S, Valkenburg HA, Cats A (1984) Evaluation of diagnostic criteria for ankylosing spondylitis. A proposal for modification of the New York criteria. Arthritis Rheum 27:361–368CrossRef
39.
go back to reference Amor B, Dougados M, Mijiyawa M (1990) Criteria of the classification of spondylarthropathies. Rev Rhum Mal Osteoartic 57:85–89PubMed Amor B, Dougados M, Mijiyawa M (1990) Criteria of the classification of spondylarthropathies. Rev Rhum Mal Osteoartic 57:85–89PubMed
40.
go back to reference Dougados M, van der Linden S, Juhlin R, Huitfeldt B, Amor B, Calin A, Cats A, Dijkmans B, Olivieri I, Pasero G, Veys E, Zeidler H, The European Spondylarthropathy Study Group (1991) The European Spondylarthropathy Study Group preliminary criteria for the classification of spondylarthropathy. Arthritis Rheum 34:1218–1227CrossRefPubMed Dougados M, van der Linden S, Juhlin R, Huitfeldt B, Amor B, Calin A, Cats A, Dijkmans B, Olivieri I, Pasero G, Veys E, Zeidler H, The European Spondylarthropathy Study Group (1991) The European Spondylarthropathy Study Group preliminary criteria for the classification of spondylarthropathy. Arthritis Rheum 34:1218–1227CrossRefPubMed
44.
go back to reference Weber U, Jurik AG, Zejden A, Larsen E, Jørgensen SH, Rufibach K, Schioldan C, Schmidt-Olsen S (2018) Frequency and anatomic distribution of magnetic resonance imaging features in the sacroiliac joints of young athletes: exploring "background noise" toward a data-driven definition of sacroiliitis in early spondyloarthritis. Arthritis Rheumatol 70:736–745. https://doi.org/10.1002/art.40429 CrossRefPubMed Weber U, Jurik AG, Zejden A, Larsen E, Jørgensen SH, Rufibach K, Schioldan C, Schmidt-Olsen S (2018) Frequency and anatomic distribution of magnetic resonance imaging features in the sacroiliac joints of young athletes: exploring "background noise" toward a data-driven definition of sacroiliitis in early spondyloarthritis. Arthritis Rheumatol 70:736–745. https://​doi.​org/​10.​1002/​art.​40429 CrossRefPubMed
45.
47.
go back to reference Zochling J, Braun J (2005) Assessment of ankylosing spondylitis. Clin Exp Rheumatol 23:S133–S141PubMed Zochling J, Braun J (2005) Assessment of ankylosing spondylitis. Clin Exp Rheumatol 23:S133–S141PubMed
48.
go back to reference Aletaha D, Neogi T, Silman AJ, Funovits J, Felson DT, Bingham CO III, Birnbaum NS, Burmester GR, Bykerk VP, Cohen MD, Combe B, Costenbader KH, Dougados M, Emery P, Ferraccioli G, Hazes JMW, Hobbs K, Huizinga TWJ, Kavanaugh A, Kay J, Kvien TK, Laing T, Mease P, Ménard HA, Moreland LW, Naden RL, Pincus T, Smolen JS, Stanislawska-Biernat E, Symmons D, Tak PP, Upchurch KS, Vencovský J, Wolfe F, Hawker G et al (2010) 2010 rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative. Arthritis Rheum 62:2569–2581. https://doi.org/10.1002/art.27584 CrossRef Aletaha D, Neogi T, Silman AJ, Funovits J, Felson DT, Bingham CO III, Birnbaum NS, Burmester GR, Bykerk VP, Cohen MD, Combe B, Costenbader KH, Dougados M, Emery P, Ferraccioli G, Hazes JMW, Hobbs K, Huizinga TWJ, Kavanaugh A, Kay J, Kvien TK, Laing T, Mease P, Ménard HA, Moreland LW, Naden RL, Pincus T, Smolen JS, Stanislawska-Biernat E, Symmons D, Tak PP, Upchurch KS, Vencovský J, Wolfe F, Hawker G et al (2010) 2010 rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative. Arthritis Rheum 62:2569–2581. https://​doi.​org/​10.​1002/​art.​27584 CrossRef
54.
go back to reference van Tubergen A, Heuft-Dorenbosch L, Schulpen G, Landewé R, Wijers R, van der Heijde D, van Engelshoven J, van der Linden S (2003) Radiographic assessment of sacroiliitis by radiologists and rheumatologists: does training improve quality? Ann Rheum Dis 62:519–525CrossRefPubMedPubMedCentral van Tubergen A, Heuft-Dorenbosch L, Schulpen G, Landewé R, Wijers R, van der Heijde D, van Engelshoven J, van der Linden S (2003) Radiographic assessment of sacroiliitis by radiologists and rheumatologists: does training improve quality? Ann Rheum Dis 62:519–525CrossRefPubMedPubMedCentral
55.
go back to reference Christiansen AA, Hendricks O, Kuettel D, Hørslev-Petersen K, Jurik AG, Nielsen S, Rufibach K, Loft AG, Pedersen SJ, Hermansen LT, Østergaard M, Arnbak B, Manniche C, Weber U (2017) Limited reliability of radiographic assessment of sacroiliac joints in patients with suspected early spondyloarthritis. J Rheumatol 44:70–77. https://doi.org/10.3899/jrheum.160079 CrossRefPubMed Christiansen AA, Hendricks O, Kuettel D, Hørslev-Petersen K, Jurik AG, Nielsen S, Rufibach K, Loft AG, Pedersen SJ, Hermansen LT, Østergaard M, Arnbak B, Manniche C, Weber U (2017) Limited reliability of radiographic assessment of sacroiliac joints in patients with suspected early spondyloarthritis. J Rheumatol 44:70–77. https://​doi.​org/​10.​3899/​jrheum.​160079 CrossRefPubMed
56.
go back to reference de Winter J, de Hooge M, van de Sande M, van Hoeven L, de Jong J, de Koning A, Berg IJ, Ramonda R, Baeten D, van der Heijde D, Weel A, Landewé RBM (2017) A positive MRI of the sacroiliac joints is not specific for axial spondyloarthritis but frequently occurs in healthy individuals [abstract]. Arthritis Rheumatol 69(Suppl 10):Abstract 1831 de Winter J, de Hooge M, van de Sande M, van Hoeven L, de Jong J, de Koning A, Berg IJ, Ramonda R, Baeten D, van der Heijde D, Weel A, Landewé RBM (2017) A positive MRI of the sacroiliac joints is not specific for axial spondyloarthritis but frequently occurs in healthy individuals [abstract]. Arthritis Rheumatol 69(Suppl 10):Abstract 1831
57.
go back to reference Arnbak B, Grethe Jurik A, Horslev-Petersen K, Hendricks O, Hermansen LT, Loft AG, Østergaard M, Pedersen SJ, Zejden A, Egund N, Holst R, Manniche C, Jensen TS (2016) Associations between spondyloarthritis features and magnetic resonance imaging findings: a cross-sectional analysis of 1,020 patients with persistent low back pain. Arthritis Rheumatol 68:892–900. https://doi.org/10.1002/art.39551 CrossRefPubMed Arnbak B, Grethe Jurik A, Horslev-Petersen K, Hendricks O, Hermansen LT, Loft AG, Østergaard M, Pedersen SJ, Zejden A, Egund N, Holst R, Manniche C, Jensen TS (2016) Associations between spondyloarthritis features and magnetic resonance imaging findings: a cross-sectional analysis of 1,020 patients with persistent low back pain. Arthritis Rheumatol 68:892–900. https://​doi.​org/​10.​1002/​art.​39551 CrossRefPubMed
60.
go back to reference Deyo RA, Tsui-Wu YJ (1987) Descriptive epidemiology of low-back pain and its related medical care in the United States. Spine (Phila Pa 1976) 12:264–268CrossRef Deyo RA, Tsui-Wu YJ (1987) Descriptive epidemiology of low-back pain and its related medical care in the United States. Spine (Phila Pa 1976) 12:264–268CrossRef
62.
go back to reference Weeks WB, Goertz CM, Meeker WC, Marchiori DM (2015) Public perceptions of doctors of chiropractic: results of a national survey and examination of variation according to respondents' likelihood to use chiropractic, experience with chiropractic, and chiropractic supply in local health care markets. J Manip Physiol Ther 38:533–544. https://doi.org/10.1016/j.jmpt.2015.08.001 CrossRef Weeks WB, Goertz CM, Meeker WC, Marchiori DM (2015) Public perceptions of doctors of chiropractic: results of a national survey and examination of variation according to respondents' likelihood to use chiropractic, experience with chiropractic, and chiropractic supply in local health care markets. J Manip Physiol Ther 38:533–544. https://​doi.​org/​10.​1016/​j.​jmpt.​2015.​08.​001 CrossRef
64.
go back to reference Danve A, Raychaudhuri SP (2017) Comorbidities in spondyloarthritis. Curr Treat Options in Rheum 3:63–74CrossRef Danve A, Raychaudhuri SP (2017) Comorbidities in spondyloarthritis. Curr Treat Options in Rheum 3:63–74CrossRef
70.
go back to reference Sieper J, Srinivasan S, Zamani O, Mielants H, Choquette D, Pavelka K, Loft AG, Géher P, Danda D, Reitblat T, Cantini F, Ancuta C, Erdes S, Raffayová H, Keat A, Gaston JS, Praprotnik S, Vastesaeger N (2013) Comparison of two referral strategies for diagnosis of axial spondyloarthritis: the Recognising and Diagnosing Ankylosing Spondylitis Reliably (RADAR) study. Ann Rheum Dis 72:1621–1627. https://doi.org/10.1136/annrheumdis-2012-201777 CrossRefPubMed Sieper J, Srinivasan S, Zamani O, Mielants H, Choquette D, Pavelka K, Loft AG, Géher P, Danda D, Reitblat T, Cantini F, Ancuta C, Erdes S, Raffayová H, Keat A, Gaston JS, Praprotnik S, Vastesaeger N (2013) Comparison of two referral strategies for diagnosis of axial spondyloarthritis: the Recognising and Diagnosing Ankylosing Spondylitis Reliably (RADAR) study. Ann Rheum Dis 72:1621–1627. https://​doi.​org/​10.​1136/​annrheumdis-2012-201777 CrossRefPubMed
71.
go back to reference Braun A, Gnann H, Saracbasi E, Grifka J, Kiltz U, Letschert K, Braun J (2013) Optimizing the identification of patients with axial spondyloarthritis in primary care—the case for a two-step strategy combining the most relevant clinical items with HLA B27. Rheumatology (Oxford) 52:1418–1424. https://doi.org/10.1093/rheumatology/ket115 CrossRef Braun A, Gnann H, Saracbasi E, Grifka J, Kiltz U, Letschert K, Braun J (2013) Optimizing the identification of patients with axial spondyloarthritis in primary care—the case for a two-step strategy combining the most relevant clinical items with HLA B27. Rheumatology (Oxford) 52:1418–1424. https://​doi.​org/​10.​1093/​rheumatology/​ket115 CrossRef
72.
go back to reference Brandt H, Vahldiek J, Rudwaleit M, Sieper J (2013) Performance of a patient-based online-questionnaire to identify patients with axial spondyloarthritis (SPA) in patients with chronic low back pain [abstract]. Ann Rheum Dis 71(Suppl 3):Abstract AB1266CrossRef Brandt H, Vahldiek J, Rudwaleit M, Sieper J (2013) Performance of a patient-based online-questionnaire to identify patients with axial spondyloarthritis (SPA) in patients with chronic low back pain [abstract]. Ann Rheum Dis 71(Suppl 3):Abstract AB1266CrossRef
73.
go back to reference van den Berg R, de Hooge M, Rudwaleit M, Sieper J, van Gaalen F, Reijnierse M, Landewé R, Huizinga T, van der Heijde D (2013) ASAS modification of the Berlin algorithm for diagnosing axial spondyloarthritis: results from the SPondyloArthritis Caught Early (SPACE)-cohort and from the Assessment of SpondyloArthritis international Society (ASAS)-cohort. Ann Rheum Dis 72:1646–1653. https://doi.org/10.1136/annrheumdis-2012-201884 CrossRefPubMed van den Berg R, de Hooge M, Rudwaleit M, Sieper J, van Gaalen F, Reijnierse M, Landewé R, Huizinga T, van der Heijde D (2013) ASAS modification of the Berlin algorithm for diagnosing axial spondyloarthritis: results from the SPondyloArthritis Caught Early (SPACE)-cohort and from the Assessment of SpondyloArthritis international Society (ASAS)-cohort. Ann Rheum Dis 72:1646–1653. https://​doi.​org/​10.​1136/​annrheumdis-2012-201884 CrossRefPubMed
75.
go back to reference Proft F, Spiller L, Protopopov M, Schmidt M, Rios Rodriguez V, Muche B, Rademacher J, Lüders S, Weber A-K, Spiller I, Sieper J, Poddubnyy D (2018) THU0230 performance of an online self-referral questionnaire compared to a physician-based referral approach to identify patients with a high probability of axial spondyloarthritis: results from the optiref study. Ann Rheum Dis 77:335 Proft F, Spiller L, Protopopov M, Schmidt M, Rios Rodriguez V, Muche B, Rademacher J, Lüders S, Weber A-K, Spiller I, Sieper J, Poddubnyy D (2018) THU0230 performance of an online self-referral questionnaire compared to a physician-based referral approach to identify patients with a high probability of axial spondyloarthritis: results from the optiref study. Ann Rheum Dis 77:335
78.
go back to reference Ez-Zaitouni Z, Bakker PAC, van Lunteren M, Berg IJ, Landewé R, van Oosterhout M, Lorenzin M, van der Heijde D, van Gaalen FA (2017) Presence of multiple spondyloarthritis (SpA) features is important but not sufficient for a diagnosis of axial spondyloarthritis: data from the SPondyloArthritis Caught Early (SPACE) cohort. Ann Rheum Dis 76:1086–1092. https://doi.org/10.1136/annrheumdis-2016-210119 CrossRefPubMed Ez-Zaitouni Z, Bakker PAC, van Lunteren M, Berg IJ, Landewé R, van Oosterhout M, Lorenzin M, van der Heijde D, van Gaalen FA (2017) Presence of multiple spondyloarthritis (SpA) features is important but not sufficient for a diagnosis of axial spondyloarthritis: data from the SPondyloArthritis Caught Early (SPACE) cohort. Ann Rheum Dis 76:1086–1092. https://​doi.​org/​10.​1136/​annrheumdis-2016-210119 CrossRefPubMed
79.
go back to reference Weisman MH, Chen L, Clegg DO, Davis JC Jr, Dubois RW, Prete PE, Savage LM, Schafer L, Suarez-Almazor ME, Yu HT, Reveille JD (2010) Development and validation of a case ascertainment tool for ankylosing spondylitis. Arthritis Care Res (Hoboken) 62:19–27. https://doi.org/10.1002/acr.20009 CrossRef Weisman MH, Chen L, Clegg DO, Davis JC Jr, Dubois RW, Prete PE, Savage LM, Schafer L, Suarez-Almazor ME, Yu HT, Reveille JD (2010) Development and validation of a case ascertainment tool for ankylosing spondylitis. Arthritis Care Res (Hoboken) 62:19–27. https://​doi.​org/​10.​1002/​acr.​20009 CrossRef
Metadata
Title
Axial spondyloarthritis in the USA: diagnostic challenges and missed opportunities
Authors
Abhijeet Danve
Atul Deodhar
Publication date
01-03-2019
Publisher
Springer London
Published in
Clinical Rheumatology / Issue 3/2019
Print ISSN: 0770-3198
Electronic ISSN: 1434-9949
DOI
https://doi.org/10.1007/s10067-018-4397-3

Other articles of this Issue 3/2019

Clinical Rheumatology 3/2019 Go to the issue
Live Webinar | 27-06-2024 | 18:00 (CEST)

Keynote webinar | Spotlight on medication adherence

Live: Thursday 27th June 2024, 18:00-19:30 (CEST)

WHO estimates that half of all patients worldwide are non-adherent to their prescribed medication. The consequences of poor adherence can be catastrophic, on both the individual and population level.

Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.

Prof. Kevin Dolgin
Prof. Florian Limbourg
Prof. Anoop Chauhan
Developed by: Springer Medicine
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine