Growing number of incident pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension patients in Latvia: a shifting epidemiological landscape? Data from a national pulmonary hypertension registry

Pulmonary hypertension (PH) is a complex, progressing and debilitating pulmonary vascular disease associated with poor prognosis. Pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) are two distinct subtypes of PH with different pathophysiologic mechanisms and treatment strategies [1]⁠.