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Pulmonary hypertension (PH) is an increasingly recognized complication in patients with HHT, most often precipitated by high\u2010output heart failure in the presence of hepatic AVMs as well as pulmonary arterial hypertension in the form of a proliferative vasculopathy. The presence of PH in patients with HHT is associated with significant elevations in rates of morbidity and mortality. Additionally, there is growing recognition of a thromboembolic propensity in this population that increases the risk of chronic thromboembolic PH, posing unique clinical considerations regarding the use of anticoagulation. Patients with HHT are also at risk of PH due to disorders commonly seen in the general population, including left\u2010sided heart and lung disease. The etiology of PH in HHT is multifaceted and complex; the diagnostic approach and treatment strategies must consider the underlying pathophysiology of HHT. This comprehensive review summarizes current knowledge of PH in HHT, detailing the pathogenesis of known etiologies, diagnostic evaluation, and suggested treatment modalities as well as emerging therapies that may be of future interest.<\/jats:p>","DOI":"10.1002\/pul2.12301","type":"journal-article","created":{"date-parts":[[2023,10,19]],"date-time":"2023-10-19T11:46:24Z","timestamp":1697715984000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Pulmonary hypertension in hereditary hemorrhagic telangiectasia: A clinical review"],"prefix":"10.1002","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3496-2542","authenticated-orcid":false,"given":"Akash","family":"Mathavan","sequence":"first","affiliation":[{"name":"Department of Internal Medicine University of Florida Gainesville Florida 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