Canadian Cardiovascular Society/Canadian Thoracic Society Position Statement on Pulmonary Hypertension

Naushad Hirani, Nathan W Brunner, Ali Kapasi, George Chandy, Lawrence Rudski, Ian Paterson, David Langleben, Sanjay Mehta, Lisa Mielniczuk
Canadian Journal of Cardiology 2020, 36 (7): 977-992
The landscape of pulmonary hypertension (PH) has changed significantly since the last Canadian Cardiovascular Society/Canadian Thoracic Society position statement in 2005. Since then, advances in our understanding of the pathophysiology of PH and improvements in diagnostic and therapeutic options have transformed the care of patients with PH. Globally, PH has an estimated prevalence of 1%, increasing to 10% in those aged 65 years and older, most commonly due to left heart or lung disease. Although pulmonary arterial hypertension (PAH) is less common, the morbidity and mortality is significant and early diagnosis and treatment are essential. This document is targeted at clinicians and describes a framework for screening and diagnosis of PH, with recommendations for performance and interpretation of echocardiography, cardiac magnetic resonance imaging, and right heart catheterization. In addition, the current approach to PAH management in Canada including risk stratification and pharmacologic therapy aimed at achieving a low-risk profile is discussed. The rationale to avoid specific PAH therapy in patients with left heart disease and lung disease-related PH is emphasized, along with special considerations for the diagnosis and management of chronic thromboembolic PH. Future advancements in the identification of novel pathways and therapies, personalized approaches to direct therapy, as well as interventional approaches such as balloon pulmonary angioplasty for chronic thromboembolic PH promise to continue the rapid evolution of this field.

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