Group 4 Pulmonary Hypertension and Therapeutic Advancements

This chapter explores the complexities of group four pulmonary hypertension secondary to chronic thromboembolic disease, shedding light on the surprising absence of thrombosis history in many patients. It discusses the diagnostic challenges, surgical interventions, patient suitability criteria, and the introduction of a new therapy for those ineligible for surgery, before transitioning to insights on group one PAH pathophysiology and treatment responses.