Skip to main content

Advertisement

Log in

Bulgarian rheumatology: science and practice in a cost-constrained environment

  • Review
  • Published:
Rheumatology International Aims and scope Submit manuscript

Abstract

Our aim was to appraise publications from Bulgaria, to assess their global impact, and to describe features and challenges unique to the rheumatology practice in Bulgaria characterized by stringent cost constraints. The Scopus database was queried on 25th July 2018 and data on the number of published documents, their Hirsch-indices and citations number were extracted. Published Bulgarian guidelines for the management of rheumatic diseases and the presented data on Bulgarian Rheumatology Society were identified based on prior knowledge of the authors. From all the identified 1082 document the most extensively researched areas were rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), osteoporosis, and osteoarthritis (OA). For the last five years (from Jan 2013 to 25th July 2018) the number of publications was 293. We found that Bulgaria’s international scientific collaboration in the field of rheumatology is focused on a handful of countries mainly from Europe. Although Bulgarian rheumatologists have access to costly biologic agents for treating their patients with rheumatic diseases, their funding may not be granted according to the current recommendations of European League against Rheumatism (EULAR) and national guidelines for the management of rheumatic diseases. Although the western world clearly dominates the production of scientific publications in rheumatology, Bulgarian rheumatology may present another perspective for diagnosis and management of patients with rheumatic diseases in a cost-stringent environment. Nevertheless, both rheumatology science and practice in Bulgaria still have a long way to go to take its deserved place among the other European countries.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

Abbreviations

AAV:

ANCA-associated vasculitis

ACR:

American College of Rheumatology

ANCA:

Anti-neutrophil cytoplasmic antibody

BRS:

Bulgarian Rheumatology Society

BS:

Behçet’s syndrome

CHCC:

Chapel Hill Consensus Conference

COMP:

Cartilage oligomeric matrix protein

csDMARDs:

Conventional synthetic disease modifying anti-rheumatic drugs

DM:

Dermatomyositis

DMARDs:

Disease modifying anti-rheumatic drugs

EMA:

European Medicine Agency

EULAR:

European league against rheumatism

FDA:

Food and Drug Administration

GCA:

Giant cell arteritis

h:

Hirsch

IIMs:

Inflammatory idiopathic myopathies

LVV:

Large vessel vasculitis

MMP-3:

Matrix metalloproteinase 3

MPO:

Myeloperoxidase

MSK:

Musculoskeletal

NCPHA:

National Center of Public Health and Analyses

NHIF:

National Health Insurance Fund

nrAxSpA:

Non-radiographic axial spondyloarthritis

OA:

Osteoarthritis

PM:

Polymyositis

PR3:

Proteinase 3

RA:

Rheumatoid arthritis

RNA:

Ribonucleic acid

SLE:

Systemic lupus erythematosus

SS:

Sjogren’s syndrome

SSc:

Systemic sclerosis

TA:

Takayasu arteritis

tsDMARDS:

Targeted synthetic disease modifying anti-rheumatic drugs

USA:

United States of America

References

  1. Sinigaglia L (2014) Metabolic bone diseases: an overview. Reumatismo 66(2):109–111. https://doi.org/10.4081/reumatismo.2014.783

    Article  CAS  PubMed  Google Scholar 

  2. Mikuls TR et al (2013) Rheumatology: a color handbook. CRC Press, Boca Raton

    Google Scholar 

  3. Chopra A, Abdel-Nasser A (2008) Epidemiology of rheumatic musculoskeletal disorders in the developing world. Best Pract Res Clin Rheumatol 22(4):583–604. https://doi.org/10.1016/j.berh.2008.07.001

    Article  PubMed  Google Scholar 

  4. Orlewska E, Ancuta I, Anic B, Codrenau C, Damjanov N, Djukic P, Ionescu R, Marinchev L, Nasonov EL, Peets T, Praprotnik S (2011) Access to biologic treatment for rheumatoid arthritis in Central and Eastern European (CEE) countries. Med Sci Monit 17(4):SR1

    Article  PubMed  PubMed Central  Google Scholar 

  5. National Center of Public Health and Analyses of Bulgaria (2018) Hospitalized patients (discharged and deceased) in hospitals by classes of ICD-10 in 2016 (Internet). http://ncpha.government.bg/files/nczi/zdr.statistika/health_BB_6.pdf. Accessed 25 July 2018

  6. Kolarov Z, Monov S (2014) Development of Rheumatology in Bulgaria. In: History of rheumatology in Bulgaria [Развитие на ревматологията в България. В: История на ревматологията в България]. Central Medical Library of Medical University-Sofia, Sofia, pp 13–17

    Google Scholar 

  7. Atanasova E, Pavlova M, Velickovski R, Nikov B, Moutafova E, Groot W (2011) What have 10 years of health insurance reforms brought about in Bulgaria? Re-appraising the Health Insurance Act of 1998. Health Policy 102(2–3):263–269

    Article  PubMed  Google Scholar 

  8. Cheng T, Guoyou Z (2013) Worldwide research productivity in the field of rheumatology from 1996 to 2010: a bibliometric analysis. Rheumatology 52(9):1630–1634. https://doi.org/10.1093/rheumatology/ket008

    Article  PubMed  Google Scholar 

  9. Gasparyan AY, Ayvazyan L, Blackmore H, Kitas GD (2011) Writing a narrative biomedical review: considerations for authors, peer reviewers, and editors. Rheumatol Int 31(11):1409. https://doi.org/10.1007/s00296-011-1999-3

    Article  PubMed  Google Scholar 

  10. Woywodt A, Matteson EL (2007) Head to head: should eponyms be abandoned? Yes. BMJ 335(7617):424. https://doi.org/10.1136/bmj.39308.342639.AD

    Article  PubMed  PubMed Central  Google Scholar 

  11. Matteson EL, Woywodt A (2006) Eponymophilia in rheumatology. Rheumatology 45(11):1328–1330. https://doi.org/10.1093/rheumatology/kel259

    Article  CAS  PubMed  Google Scholar 

  12. Abubakar II, Tillmann T, Banerjee A (2015) Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990–2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet 385(9963):117–171

    Article  Google Scholar 

  13. Emery P (2011) Pocket reference to early rheumatoid arthritis. Springer, Berlin

    Book  Google Scholar 

  14. Kobelt G, Kasteng F (2009) Access to innovative treatments in rheumatoid arthritis in Europe. A report prepared for the European Federation of Pharmaceutical Industry Associations (EFPIA) (Internet). http://www.comparatorreports.se/Access%20to%20RA%20Treatments%20October%202009.pdf. Accessed 14 Oct 2018

  15. Solakov P, Khristova M (1977) Rheumatoid arthritis among the rural population of southern Bulgaria (transitory morbidity established using the Rome and New York diagnostic criteria). Vutreshni Boles 16(3):52–56

    CAS  Google Scholar 

  16. Aletaha D et al (2010) 2010 Rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative. Arthritis Rheum 62(9):2569–2581

    Article  PubMed  Google Scholar 

  17. Verschueren P, De Cock D, Corluy L et al (2015) Methotrexate in combination with other DMARDs is not superior to methotrexate alone for remission induction with moderate-to-high-dose glucocorticoid bridging in early rheumatoid arthritis after 16 weeks of treatment: the CareRA trial. Ann Rheum Dis 74:27–34. https://doi.org/10.1136/annrheumdis-2014-205489

    Article  CAS  PubMed  Google Scholar 

  18. O’Dell JR, Mikuls TR, Taylor TH et al (2013) Therapies for active rheumatoid arthritis after methotrexate failure. N Engl J Med 369:307–318. https://doi.org/10.1056/NEJMoa1303006

    Article  CAS  PubMed  Google Scholar 

  19. Smolen JS, Landewé R, Bijlsma J, Burmester G, Chatzidionysiou K, Dougados M, Nam J, Ramiro S, Voshaar M, van Vollenhoven R, Aletaha D (2017) EULAR recommendations for the management of rheumatoid arthritis with synthetic and biological disease-modifying antirheumatic drugs: 2016 update. Ann Rheum Dis 76(6):960–977

    Article  PubMed  Google Scholar 

  20. Bulgarian Rheumatology Society (2018) National consensus for the treatment of rheumatoid arthritis with biologic agents [Национален консенсус за лечение на ревматоиден артрит с биологични средства] (Internet). http://rheumatologybg.org/download/consensus_3.doc. Accessed 14 Oct 2018

  21. NHIF requirements for the treatment of seropositive rheumatoid and psoriatic arthritis with disease-modifying antirheumatic drugs (DMARDs) in outpatient care [Изисквания на НЗОК при лечение на серопозитивен ревматоиден и псориатичен артрит с болест-модифициращи антиревматични лекарства (БМАРЛ) в извънболничната помощ] (Internet). https://www.nhif.bg/get_file?uuid=79d71f42-0189-4232-af78-97e0f2fd0dbb. Accessed 14 Oct 2018

  22. NHIF requirements for treatment of moderate to severe active seropositive rheumatoid arthritis, active juvenile arthritis, active and progressive psoriatic arthritis and severe active ankylosing spondylitis with disease-modifying antirheumatic drugs over 18 years of age in outpatient care [Изисквания на НЗОК при лечение на умерен до тежък активен серопозитивен ревматоиден артрит, активен ювенилен артрит, активен и прогресиращ псориатичен артрит и тежък активен анкилозиращ спондилит с антиревматични лекарствени продукти над 18 годишна възраст в извънболничната помощ] (Internet). https://www.nhif.bg/get_file?uuid=74d9c325-9d5c-4494-bc53-68ddc9ccc955. Accessed 14 Oct 2018

  23. Dougados M, Baeten D (2011) Spondyloarthritis. Lancet 377:2127–2137

    Article  PubMed  Google Scholar 

  24. Stolwijk C, van Tubergen A, Castillo-Ortiz JD et al (2015) Prevalence of extra-articular manifestations in patients with ankylosing spondylitis: a systematic review and meta-analysis. Ann Rheum Dis 74(1):65–73. https://doi.org/10.1136/annrheumdis-2013-203582

    Article  PubMed  Google Scholar 

  25. van der Heijde D, Ramiro S, Landewé R, Baraliakos X, Van den Bosch F, Sepriano A, Regel A, Ciurea A, Dagfinrud H, Dougados M, van Gaalen F (2017) 2016 update of the ASAS-EULAR management recommendations for axial spondyloarthritis. Annals of the rheumatic diseases. 2016 update of the ASAS-EULAR management recommendations for axial spondyloarthritis. Ann Rheum Dis 76:978–991. https://doi.org/10.1136/annrheumdis-2016-210770

    Article  PubMed  Google Scholar 

  26. van der Linden S, Valkenburg HA, Cats A (1984) Evaluation of diagnostic criteria for ankylosing spondylitis. Arthritis Rheum 27(4):361–368

    Article  PubMed  Google Scholar 

  27. Rudwaleit M, Landewé R, Van der Heijde D, Listing J, Brandt J, Braun JV, Burgos-Vargas R, Collantes-Estevez E, Davis J, Dijkmans B, Dougados M (2009) The development of Assessment of SpondyloArthritis International Society classification criteria for axial spondyloarthritis (part I): classification of paper patients by expert opinion including uncertainty appraisal. Ann Rheum Dis 68(6):770–776

    Article  CAS  PubMed  Google Scholar 

  28. Rudwaleit MV, Van Der Heijde D, Landewé R, Akkoc N, Brandt J, Chou CT, Dougados M, Huang F, Gu J, Kirazli Y, Van den Bosch F (2011) The Assessment of SpondyloArthritis International Society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general. Ann Rheum Dis 70(1):25–31

    Article  CAS  PubMed  Google Scholar 

  29. Ivanova M, Manolova I, Goycheva P, Stoilov R (2014) Serum cytokines (TNF-alpha and IL-18) in ankylosing spondylitis in relation to disease activity. C R l‘Académie Bulg Sci 67(4):593–606

    CAS  Google Scholar 

  30. Smolen JS, Schöls M, Braun J, Dougados M, FitzGerald O, Gladman DD, Kavanaugh A, Landewé R, Mease P, Sieper J, Stamm T (2018) Treating axial spondyloarthritis and peripheral spondyloarthritis, especially psoriatic arthritis, to target: 2017 update of recommendations by an international task force. Ann Rheum Dis 77(1):3–17

    Article  PubMed  Google Scholar 

  31. Bulgarian Rheumatology Society (2018) Consensus for the treatment of psoriatic arthritis [Консенсус за лечение на псориатичен артрит] (Internet). http://rheumatologybg.org/download/consensus_2.doc. Accessed 14 Oct 2018

  32. Bulgarian Rheumatology Society (2018) Consensus for the treatment of axial spondyloarthritis [Консенсус за лечение на аксиален спондилоартрит] (Internet). http://rheumatologybg.org/download/consensus_1.doc. Accessed 14 Oct 2018

  33. Baraliakos X, Braun J (2015) Non-radiographic axial spondyloarthritis and ankylosing spondylitis: what are the similarities and differences? RMD Open 1(Suppl 1):e000053. https://doi.org/10.1136/rmdopen-2015-000053

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  34. McAlindon TE, Cooper C, Kirwan JR, Dieppe PA (1992) Knee pain and disability in the community. Br J Rheumatol 31:189–192

    Article  CAS  PubMed  Google Scholar 

  35. Nuesch E, Dieppe P, Reichenbach S et al (2011) All cause and disease specific mortality in patients with knee or hip osteoarthritis: population based cohort study. BMJ 342:d1165

    Article  PubMed  PubMed Central  Google Scholar 

  36. Felson DT, Lawrence RC, Dieppe PA et al (2000) Osteoarthritis: new insights. Part 1: the disease and its risk factors. Ann Intern Med 133(8):635–646

    Article  CAS  PubMed  Google Scholar 

  37. Kellgren JH, Lawrence JS (1957) Radiological assessment of osteo-arthrosis. Ann Rheum Dis 16:494–502

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  38. Georgiev T, Stoilov R, Penkov M, Ivanova M, Trifonov A (2016) Radiographic assessment of knee osteoarthritis. Revmatologiia (Bulgaria) 24(2):16–24

    Google Scholar 

  39. Sakellariou G, Conaghan PG, Zhang W et al (2017) EULAR recommendations for the use of imaging in the clinical management of peripheral joint osteoarthritis. Ann Rheum Dis 76:1484–1494. https://doi.org/10.1136/annrheumdis-2016-210815

    Article  PubMed  Google Scholar 

  40. Kraus VB, Burnett B, Coindreau J et al (2011) Application of biomarkers in the development of drugs intended for the treatment of osteoarthritis. Osteoarthritis Cartil 19(5):515–542

    Article  CAS  Google Scholar 

  41. Georgiev T, Ivanova M, Kopchev A, Velikova T, Miloshov A, Kurteva E, Yuzeir K, Penkov M, Kabakchieva P, Rashkov R, Stoilov R (2018) Cartilage oligomeric protein, matrix metalloproteinase-3, and Coll2-1 as serum biomarkers in knee osteoarthritis: a cross-sectional study. Rheumatol Int 38(5):821–830

    Article  CAS  PubMed  Google Scholar 

  42. Simon TM, Jackson DW (2018) Articular cartilage: injury pathways and treatment options. Sports Med Arthrosc Rev 26(1):31–39

    Article  PubMed  Google Scholar 

  43. Bulgarian Rheumatology Society (2018) Consensus for the diagnosis and treatment of osteoarthritis [Консенсус за диагноза и лечение на артрозната болест] (Internet). http://rheumatologybg.org/download/consensus_4.pdf. Accessed 14 Oct 2018

  44. Cong Y, Gershwin EM, Chang C (2014) Diagnostic criteria for systemic lupus erythematosus: a critical review. J Autoimmun 48:10–13. https://doi.org/10.1016/j.jaut.2014.01.004

    Article  CAS  Google Scholar 

  45. Miteva LD, Manolova IM, Ivanova MG, Rashkov RK, Stoilov RM, Gulubova MV, Stanilova SA (2012) Functional genetic polymorphisms in interleukin-12B gene in association with systemic lupus erythematosus. Rheumatol Int 32(1):53–59

    Article  CAS  PubMed  Google Scholar 

  46. Petri M, Orbai AM, Alarcón GS, Gordon C, Merrill JT, Fortin PR, Bruce IN, Isenberg D, Wallace DJ, Nived O, Sturfelt G (2012) Derivation and validation of the systemic lupus international collaborating clinics classification criteria for systemic lupus erythematosus. Arthritis Rheum 64(8):2677–2686. https://doi.org/10.1002/art.34473

    Article  PubMed  PubMed Central  Google Scholar 

  47. Tedeschi SK, Johnson SR, Boumpas D, Daikh D, Dörner T, Jayne D, Kamen D, Lerstrøm K, Mosca M, Ramsey-Goldman R, Sinnette C (2018) Developing and refining new candidate criteria for systemic lupus erythematosus classification: an international collaboration. Arthritis Care Res 70(4):571–581. https://doi.org/10.1002/acr.23317

    Article  CAS  Google Scholar 

  48. Hochberg MC (1997) Updating the American College of Rheumatology revised criteria for the classification of systemic lupus erythematosus. Arthritis Rheum 40(9):1725–1725

    Article  CAS  PubMed  Google Scholar 

  49. Fonseca AR, Gaspar-Elsas MI, Land MG, de Oliveira SK (2015) Comparison between three systems of classification criteria in juvenile systemic lupus erythematous. Rheumatology 54:241–247

    Article  PubMed  Google Scholar 

  50. Bertsias GK, Tektonidou M, Amoura Z et al (2012) Joint European League Against Rheumatism and European Renal Association–European Dialysis and Transplant Association (EULAR/ERA-EDTA) recommendations for the management of adult and paediatric lupus nephritis. Ann Rheum Dis 71:1771–1782. https://doi.org/10.1136/annrheumdis-2012-201940

    Article  CAS  PubMed  Google Scholar 

  51. Bertsias GK, Ioannidis JPA, Aringer M et al (2010) EULAR recommendations for the management of systemic lupus erythematosus with neuropsychiatric manifestations: report of a task force of the EULAR standing committee for clinical affairs. Ann Rheum Dis 69:2074–2082. https://doi.org/10.1136/ard.2010.130476

    Article  CAS  PubMed  Google Scholar 

  52. Bertsias G, Ioannidis JPA, Boletis J et al (2008) EULAR recommendations for the management of systemic lupus erythematosus. Report of a task force of the EULAR Standing Committee for International Clinical Studies including therapeutics. Ann Rheum Dis 67:195–205. https://doi.org/10.1136/ard.2007.070367

    Article  CAS  PubMed  Google Scholar 

  53. Muller S, Monneaux F, Schall N, Rashkov RK, Oparanov BA, Wiesel P, Geiger J, Zimmer R (2008) Spliceosomal peptide P140 for immunotherapy of systemic lupus erythematosus: results of an early phase II clinical trial. Arthritis Rheum 58:3873–3883. https://doi.org/10.1002/art.24027

    Article  CAS  PubMed  Google Scholar 

  54. Merrill JT, Neuwelt CM, Wallace DJ, Shanahan JC, Latinis KM, Oates JC, Utset TO, Gordon C, Isenberg DA, Hsieh HJ, Zhang D (2010) Efficacy and safety of rituximab in moderately-to-severely active systemic lupus erythematosus: The randomized, double-blind, phase II/III systemic lupus erythematosus evaluation of rituximab trial. Arthritis Rheum 62:222–233. https://doi.org/10.1002/art.27233

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  55. Clowse ME, Wallace DJ, Furie RA, Petri MA, Pike MC, Leszczyński P, Neuwelt CM, Hobbs K, Keiserman M, Duca L, Kalunian KC et al (2017) Efficacy and safety of epratuzumab in moderately to severely active systemic lupus erythematosus: results from two phase III randomized, double-blind, placebo-controlled trials. Arthritis Rheumatol 69(2):362–375

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  56. Mavragani CP, Nezos A, Moutsopoulos HM (2013) New advances in the classification, pathogenesis and treatment of Sjogren’s syndrome. Curr Opin Rheumatol 25(5):623–629

    Article  CAS  PubMed  Google Scholar 

  57. Tincani A, Andreoli L, Cavazzana I, Doria A, Favero M, Fenini MG et al (2013) Novel aspects of Sjögren’s syndrome in 2012. BMC Med 11:93

    Article  PubMed  PubMed Central  Google Scholar 

  58. Vivino FB, Carsons SE, Foulks G, Daniels TE, Parke A, Brennan MT, Forstot SL, Scofield RH, Hammitt KM (2016) New treatment guidelines for Sjögren’s disease. Rheum Dis Clin 42(3):531–551

    Article  Google Scholar 

  59. Bolster MB, Silver RM (2015) Clinical features of systemic sclerosis. In: Hochberg MC, Silman AJ, Smolen JS et al (eds) Rheumatology, 6th edn. Mosby, St. Louis, pp 1165–1176

    Google Scholar 

  60. Wei J, Bhattacharyya S, Tourtellotte WG et al (2011) Fibrosis in systemic sclerosis: emerging concepts and implications for targeted therapy. Autoimmun Rev 10(5):267–275

    Article  CAS  PubMed  Google Scholar 

  61. Rocco VK, Hurd ER (1986) Scleroderma and scleroderma-like syndromes. Semin Arthritis Rheum 16:22

    Article  CAS  PubMed  Google Scholar 

  62. Chifflot H, Fautrel B, Sordet C, Chatelus E, Sibilia J. Incidence and prevalence of systemic sclerosis: a systematic literature review. In: Seminars in arthritis and rheumatism, 1 Feb 2008 (vol 37, No. 4, pp. 223–235). WB Saunders, Philadelphia

  63. Van Den Hoogen F, Khanna D, Fransen J, Johnson SR, Baron M, Tyndall A, Matucci-Cerinic M, Naden RP, Medsger TA Jr, Carreira PE, Riemekasten G (2013) 2013 classification criteria for systemic sclerosis: an American College of Rheumatology/European League against Rheumatism collaborative initiative. Arthritis Rheum 65(11):2737–2747

    Article  PubMed  PubMed Central  Google Scholar 

  64. Krasimirova E, Velikova T, Tumangelova-Yuzeir K, Ivanova-Todorova E, Kyurkchiev D, Kalinova D, Reshkova V, Kopchev A, Rashkov R (2016) A wide immunological profile in the diagnosis of progressive systemic sclerosis. Revmatologiia (Bulgaria) 24(2):35–51

    Google Scholar 

  65. Allanore Y, Matucci-Cerinic M, Distler O (2016) Treatment of systemic sclerosis: is there any hope for the future? RMD Open 2:e000260. https://doi.org/10.1136/rmdopen-2016-000260

    Article  PubMed  PubMed Central  Google Scholar 

  66. Kowal-Bielecka O, Fransen J, Avouac J et al (2017) Update of EULAR recommendations for the treatment of systemic sclerosis. Ann Rheum Dis 76:1327–1339

    Article  PubMed  Google Scholar 

  67. Dalakas MC (1991) Polymyositis, dermatomyositis, and inclusion-body myositis. N Engl J Med 325(21):1487–1498. https://doi.org/10.1056/NEJM199111213252107

    Article  CAS  PubMed  Google Scholar 

  68. Dalakas MC, Hohlfeld R (2003) Polymyositis and dematomyositis. Lancet 362(9388):971–982. https://doi.org/10.1016/S0140-6736(03)14368-1

    Article  CAS  PubMed  Google Scholar 

  69. Kalinova D, Kopchev A, Nikolaeva S, Rashkov R (2016) Autoimmune myositis—histological features in the skin and muscle biopsies. Revmatologiia (Bulgaria) 24(4):28–34

    Google Scholar 

  70. Dourmishev LA, Guleva DV, Miteva LG (2018) Intravenous immunoglobulins for treatment of connective tissue diseases in dermatology. Wien Med Wochenschr 168:213. https://doi.org/10.1007/s10354-017-0595-x

    Article  PubMed  Google Scholar 

  71. Jennette J, Falk R, Bacon P, Basu N, Cid MC, Ferrario F et al (2013) 2012 revised International Chapel Hill consensus conference nomenclature of vasculitides. Arthritis Rheum 65:1–11

    Article  CAS  PubMed  Google Scholar 

  72. Arend WP, Michel BA, Bloch DA, Hunder GG, Calabrese LH, Edworthy SM et al (1990) The American College of Rheumatology 1990 criteria for the classification of Takayasu arteritis. Arthritis Rheum 33:1129–1134

    Article  CAS  PubMed  Google Scholar 

  73. Hunder GG, Bloch DA, Michel BA, Stevens MB, Arend WP, Calabrese LH et al (1990) The American College of Rheumatology 1990 criteria for the classification of giant cell arteritis. Arthritis Rheum 33:1122–1128

    Article  CAS  PubMed  Google Scholar 

  74. Dourmishev AL, Serafimova DK, Vassileva SG, Dourmishev LA, Schwartz RA (2005) Segmental ulcerative vasculitis: a cutaneous manifestation of Takayasu’s arteritis. Int Wound J 2(4):340–345

    Article  PubMed  PubMed Central  Google Scholar 

  75. Petrov IS et al (2018) Late outcomes after interventional treatment—successful stenting of Takayasu arteritis lesions. Single center experience in Bulgaria. Cor Vasa 60(2):e114–e121

    Article  Google Scholar 

  76. European Medicines Agency-Find medicine-RoActemra (Internet). http://www.ema.europa.eu/ema/index.jsp?curl=pages/medicines/human/medicines/000955/human_med_001042.jsp&mid=WC0b01ac058001d124. Accessed 25 July 2018

  77. US Food and Drug Administration (2017) FDA approves first drug to specifically treat giant cell arteritis (Internet). https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm559791.htm. Accessed 25 July 2018

  78. Hatemi G, Christensen R, Bang D et al (2018) 2018 update of the EULAR recommendations for the management of Behçet’s syndrome. Ann Rheum Dis. https://doi.org/10.1136/annrheumdis-2018-213225

    Article  PubMed  Google Scholar 

  79. Leonardo NM, McNeil J (2015) Behçet’s disease: is there geographical variation? A review far from the Silk Road. Int J Rheumatol. https://doi.org/10.1155/2015/945262

    Article  PubMed  PubMed Central  Google Scholar 

  80. Yoneva T, Rashkov R, Zdravkova Y (2015) Clinical and immunological analysis of the patients with ANCA associated vasculitides in the rheumatology clinic. Revmatologiia (Bulgaria) 23(4):31–47

    Google Scholar 

Download references

Funding

No funding was received for this study.

Author information

Authors and Affiliations

Authors

Contributions

Both TG and RS took part in the conception and design of the study, data management, analysis, and logical interpretation. TG drafted the article, while RS revised it critically for important intellectual content. Both authors read and approved the final manuscript.

Corresponding author

Correspondence to Tsvetoslav Georgiev.

Ethics declarations

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Conflict of interest

Tsvetoslav Georgiev declares that he has no conflict of interest. Rumen Stoilov declares that he has no conflict of interest.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Georgiev, T., Stoilov, R. Bulgarian rheumatology: science and practice in a cost-constrained environment. Rheumatol Int 39, 417–429 (2019). https://doi.org/10.1007/s00296-018-4202-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00296-018-4202-2

Keywords

Navigation