{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T00:48:39Z","timestamp":1793148519051,"version":"4.5.0"},"reference-count":44,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2019,4,10]],"date-time":"2019-04-10T00:00:00Z","timestamp":1554854400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["acrjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Arthritis &amp; Rheumatology"],"published-print":{"date-parts":[[2019,5]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>This prospective study was undertaken to evaluate right ventricular function and pulmonary arterial compliance (<jats:styled-content style=\"fixed-case\">PAC<\/jats:styled-content>; ratio of stroke volume to pulse pressure) at rest and during exercise in patients with systemic sclerosis (<jats:styled-content style=\"fixed-case\">SS<\/jats:styled-content>c) with normal mean pulmonary artery pressure (<jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content>), patients with <jats:styled-content style=\"fixed-case\">SS<\/jats:styled-content>c with mildly elevated mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content>, and patients with <jats:styled-content style=\"fixed-case\">SS<\/jats:styled-content>c with manifest pulmonary hypertension (<jats:styled-content style=\"fixed-case\">PH<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients with <jats:styled-content style=\"fixed-case\">SS<\/jats:styled-content>c (n = 112) underwent clinical assessment and right\u2010sided heart catheterization at rest and during exercise and were divided into 3 groups according to their resting mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> values: normal mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> (\u226420 mm Hg), mildly elevated mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> (21\u201324 mm Hg), and <jats:styled-content style=\"fixed-case\">PH<\/jats:styled-content> (mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> \u226525 mm Hg). Results were compared between groups by analysis of variance followed by post hoc Student's <jats:italic>t<\/jats:italic>\u2010test.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Compared to patients with normal mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content>, patients with mildly elevated mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> had a lower 6\u2010minute walking distance (<jats:italic>P<\/jats:italic> = 0.008), lower cardiac index (<jats:italic>P<\/jats:italic> = 0.027) and higher pulmonary vascular resistance (<jats:italic>P<\/jats:italic> = 0.0002) during exercise, and lower <jats:styled-content style=\"fixed-case\">PAC<\/jats:styled-content> at rest (<jats:italic>P<\/jats:italic> = 0.016) and different stages of exercise (<jats:italic>P<\/jats:italic> = 0.033 for 25W and <jats:italic>P<\/jats:italic> = 0.024 for 75W).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The results of this study suggest that impaired 6\u2010minute walking distance in <jats:styled-content style=\"fixed-case\">SS<\/jats:styled-content>c patients with mildly elevated mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> might be caused by reduced <jats:styled-content style=\"fixed-case\">PAC<\/jats:styled-content> during exercise and reduced right ventricular output reserve, presumably due to impaired coupling between the right ventricle and the pulmonary vasculature. These findings provide further evidence of the clinical relevance of mildly elevated mean <jats:styled-content style=\"fixed-case\">PAP<\/jats:styled-content> in patients with <jats:styled-content style=\"fixed-case\">SS<\/jats:styled-content>c.<\/jats:p><\/jats:sec>","DOI":"10.1002\/art.40814","type":"journal-article","created":{"date-parts":[[2019,1,8]],"date-time":"2019-01-08T16:46:05Z","timestamp":1546965965000},"page":"805-816","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":37,"title":["Reduced Right Ventricular Output Reserve in Patients With Systemic Sclerosis and Mildly Elevated Pulmonary Artery Pressure"],"prefix":"10.1002","volume":"71","author":[{"given":"Christian","family":"Nagel","sequence":"first","affiliation":[{"name":"Heidelberg University Hospital, German Center for Lung Research, Heidelberg, Germany, and Klinikum Mittelbaden Baden\u2010Baden Balg  Baden\u2010Baden Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alberto M.","family":"Marra","sequence":"additional","affiliation":[{"name":"SDN Scientific Institute for Research and Healthcare  Naples Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicola","family":"Benjamin","sequence":"additional","affiliation":[{"name":"Heidelberg University Hospital, German Center for Lung Research  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norbert","family":"Blank","sequence":"additional","affiliation":[{"name":"University Hospital Heidelberg  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Cittadini","sequence":"additional","affiliation":[{"name":"University Federico II of Naples  Naples Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerry","family":"Coghlan","sequence":"additional","affiliation":[{"name":"Royal Free Hospital  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oliver","family":"Distler","sequence":"additional","affiliation":[{"name":"University Hospital Zurich  Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher P.","family":"Denton","sequence":"additional","affiliation":[{"name":"Royal Free Hospital  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin","family":"Egenlauf","sequence":"additional","affiliation":[{"name":"Heidelberg University Hospital, German Center for Lung Research  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph","family":"Fiehn","sequence":"additional","affiliation":[{"name":"Baden\u2010Baden Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine","family":"Fischer","sequence":"additional","affiliation":[{"name":"University Hospital Heidelberg  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Satenik","family":"Harutyunova","sequence":"additional","affiliation":[{"name":"Heidelberg University Hospital, German Center for Lung Research  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marius M.","family":"Hoeper","sequence":"additional","affiliation":[{"name":"Hannover Medical School  Hannover Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hanns\u2010Martin","family":"Lorenz","sequence":"additional","affiliation":[{"name":"University Hospital Heidelberg  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Panagiota","family":"Xanthouli","sequence":"additional","affiliation":[{"name":"Heidelberg University Hospital, German Center for Lung Research  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eduardo","family":"Bossone","sequence":"additional","affiliation":[{"name":"A. 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