The 4th Baltic Pulmonary Hypertension and Circulation Conference took place in Riga, Latvia on April 21, 2023. It provided an opportunity to hear about the latest developments in the treatment of pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension from international experts – Prof. Marcin Kurzyna from Poland and Prof. Olivier Sitbon from France, as well as leading experts