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Prevalence and incidence of pulmonary arterial hypertension : 10-year follow-up of an unselected systemic sclerosis cohort

Els Vandecasteele (UGent) , Karin Melsens (UGent) , Kristof Thevissen (UGent) , Michel De Pauw (UGent) , Ellen Deschepper (UGent) , Saskia Decuman (UGent) , Yves Piette (UGent) , Filip De Keyser (UGent) , Guy Brusselle (UGent) and Vanessa Smith (UGent)
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Abstract
Introduction: Early screening for pulmonary arterial hypertension (PAH) in systemic sclerosis (SSc) improves outcome. Therefore, we evaluated the screening for PAH during the 10-year follow-up of an unselected prospective SSc cohort by calculating the prevalence and the incidence rate of PAH and we compared the screening before and after implementation of the 2009 European Society of Cardiology/European Respiratory Society (ESC/ERS) guidelines. Methods: Data were evaluated from each SSc-specific visit of 362 consecutive SSc patients included in the SSc Cohort of the Ghent University between May 2006 and December 2015. Results: Of the 362 included patients, 23.2% had limited SSc, 59.9% limited cutaneous SSc and 16.9% diffuse cutaneous SSc. At baseline, one patient was already on PAH-specific treatment and eight patients were diagnosed with PAH, implicating a baseline PAH prevalence of 2.5% (9/362). During follow-up (median of 18 months [interquartile range: 0-54 months]), nine patients were diagnosed with incidental PAH, resulting in an incidence rate of 9.3/1000 person-years, 95% confidence intervals (95% CI): 4.3-17.7. Before the ESC/ERS guidelines, five PAH patients, all already diagnosed with prevalent PAH, were included in the cohort. After 2009, 13 patients (4 prevalent cases) were diagnosed with PAH, making the yearly incidence around 1% (0.82%-2.00%). Conclusions: During 10-year follow-up in a cohort of 362 unselected SSc patients, the cumulative prevalence of PAH is 5% (18/362) and the incidence rate 9.3/1000 person-years, 95% CI: 4.3-17.7. Before implementation of the 2009 ESC/ERS screening algorithm, there were no incident cases.
Keywords
LONG-TERM SURVIVAL, LUNG-DISEASE, CLASSIFICATION, DIAGNOSIS, GUIDELINES, CRITERIA, DEATH, Incidence, Prevalence, Pulmonary arterial hypertension, Screening, Systemic sclerosis

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Chicago
Vandecasteele, Els, Karin Melsens, Kristof Thevissen, Michel De Pauw, Ellen Deschepper, Saskia Decuman, Yves Piette, Filip De Keyser, Guy Brusselle, and Vanessa Smith. 2017. “Prevalence and Incidence of Pulmonary Arterial Hypertension : 10-year Follow-up of an Unselected Systemic Sclerosis Cohort.” Journal of Scleroderma and Related Disorders 2 (3): 196–202.
APA
Vandecasteele, Els, Melsens, K., Thevissen, K., De Pauw, M., Deschepper, E., Decuman, S., Piette, Y., et al. (2017). Prevalence and incidence of pulmonary arterial hypertension : 10-year follow-up of an unselected systemic sclerosis cohort. JOURNAL OF SCLERODERMA AND RELATED DISORDERS, 2(3), 196–202.
Vancouver
1.
Vandecasteele E, Melsens K, Thevissen K, De Pauw M, Deschepper E, Decuman S, et al. Prevalence and incidence of pulmonary arterial hypertension : 10-year follow-up of an unselected systemic sclerosis cohort. JOURNAL OF SCLERODERMA AND RELATED DISORDERS. 2017;2(3):196–202.
MLA
Vandecasteele, Els, Karin Melsens, Kristof Thevissen, et al. “Prevalence and Incidence of Pulmonary Arterial Hypertension : 10-year Follow-up of an Unselected Systemic Sclerosis Cohort.” JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2.3 (2017): 196–202. Print.
@article{8539418,
  abstract     = {Introduction: Early screening for pulmonary arterial hypertension (PAH) in systemic sclerosis (SSc) improves outcome. Therefore, we evaluated the screening for PAH during the 10-year follow-up of an unselected prospective SSc cohort by calculating the prevalence and the incidence rate of PAH and we compared the screening before and after implementation of the 2009 European Society of Cardiology/European Respiratory Society (ESC/ERS) guidelines. 
Methods: Data were evaluated from each SSc-specific visit of 362 consecutive SSc patients included in the SSc Cohort of the Ghent University between May 2006 and December 2015. 
Results: Of the 362 included patients, 23.2\% had limited SSc, 59.9\% limited cutaneous SSc and 16.9\% diffuse cutaneous SSc. At baseline, one patient was already on PAH-specific treatment and eight patients were diagnosed with PAH, implicating a baseline PAH prevalence of 2.5\% (9/362). During follow-up (median of 18 months [interquartile range: 0-54 months]), nine patients were diagnosed with incidental PAH, resulting in an incidence rate of 9.3/1000 person-years, 95\% confidence intervals (95\% CI): 4.3-17.7. Before the ESC/ERS guidelines, five PAH patients, all already diagnosed with prevalent PAH, were included in the cohort. After 2009, 13 patients (4 prevalent cases) were diagnosed with PAH, making the yearly incidence around 1\% (0.82\%-2.00\%). 
Conclusions: During 10-year follow-up in a cohort of 362 unselected SSc patients, the cumulative prevalence of PAH is 5\% (18/362) and the incidence rate 9.3/1000 person-years, 95\% CI: 4.3-17.7. Before implementation of the 2009 ESC/ERS screening algorithm, there were no incident cases.},
  author       = {Vandecasteele, Els and Melsens, Karin and Thevissen, Kristof and De Pauw, Michel and Deschepper, Ellen and Decuman, Saskia and Piette, Yves and De Keyser, Filip and Brusselle, Guy and Smith, Vanessa},
  issn         = {2397-1983},
  journal      = {JOURNAL OF SCLERODERMA AND RELATED DISORDERS},
  language     = {eng},
  number       = {3},
  pages        = {196--202},
  title        = {Prevalence and incidence of pulmonary arterial hypertension : 10-year follow-up of an unselected systemic sclerosis cohort},
  url          = {http://dx.doi.org/10.5301/jsrd.5000246},
  volume       = {2},
  year         = {2017},
}

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