{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T12:35:41Z","timestamp":1756384541391,"version":"3.44.0"},"reference-count":9,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,7,23]]},"abstract":"<jats:p>Chronic thromboembolic pulmonary hypertension (CTEPH) is a form of pulmonary arterial hypertension (PAH) in which the pulmonary thrombus fails to resolve, resulting in occlusion and remodelling of pulmonary arteries.<jats:sup>1<\/jats:sup> Timely diagnosis is critical since it is potentially curable by pulmonary thromboendarterectomy. Twenty five per cent of cases do not have a history of thromboembolic event. The diagnosis should be considered in the diagnostic work-up of PAH despite lack of history of episodes of thromboembolism. Here we are reporting a case of CTEPH with multiple systemic to pulmonary collaterals delineated by angiogram and CT.<\/jats:p>","DOI":"10.1136\/bcr-2018-225764","type":"journal-article","created":{"date-parts":[[2018,8,27]],"date-time":"2018-08-27T11:39:17Z","timestamp":1535369957000},"page":"bcr-2018-225764","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Chronic thromboembolic pulmonary hypertension: an enigma"],"prefix":"10.1136","volume":"2018","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0343-4894","authenticated-orcid":false,"given":"Suraj Kumar","family":"Kulkarni","sequence":"first","affiliation":[{"name":"Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and research, Bangalore, Karnataka, India"},{"name":"Cardiology, King George\u2019s Medical University, Lucknow, Uttar Pradesh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shivakumar","family":"Bhairappa","sequence":"additional","affiliation":[{"name":"Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and research, Bangalore, Karnataka, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amardeep","family":"Bishnoi","sequence":"additional","affiliation":[{"name":"Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and research, Bangalore, Karnataka, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Prakash Sadashivappa","family":"Surhonne","sequence":"additional","affiliation":[{"name":"Cardiology, Sri Jayadeva Institute of Cardiovascular Sciences and research, Bangalore, Karnataka, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2018,8,27]]},"reference":[{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.1","doi-asserted-by":"publisher","DOI":"10.1183\/09059180.00009111"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa032274"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.3","doi-asserted-by":"publisher","DOI":"10.1016\/j.thromres.2009.01.003"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.4","doi-asserted-by":"publisher","DOI":"10.1183\/16000617.00000915"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.5","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.110.015008"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.6","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1148\/radiology.203.1.9122389","article-title":"Acute central thromboembolic disease: posttherapeutic follow-up with spiral CT angiography","volume":"203","author":"Remy-Jardin","year":"1997","journal-title":"Radiology"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.7","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.99.10.1325"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.8","first-page":"1043","article-title":"Incomplete recovery of lung perfusion after 3 months in patients with acute pulmonary embolism treated with antithrombotic agents","volume":"41","author":"Wartski","year":"2000","journal-title":"J Nucl Med"},{"key":"2025082623165303000_2018.aug27_1.bcr-2018-225764.9","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.2004.053603"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2018-225764","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T06:17:01Z","timestamp":1756275421000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2018-225764"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,8,27]]},"references-count":9,"alternative-id":["10.1136\/bcr-2018-225764"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2018-225764","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2018,8,27]]}}}