Prognostic relevance of differential blood count in pulmonary arterial hypertension

Introduction: Differential blood count is routinely done at the time of diagnostic work-up and during follow-up of pulmonary arterial hypertension (PAH), however it is unknown if specific cell types are of prognostic relevance. Aims and objectives: We aimed to analyze white cell differential counts of PAH patients and to assess if specific cell types may be of prognostic relevance. Patients and methods: In this retrospective study we included n = 83 newly diagnosed PAH patients and n = 71 patients who underwent right heart catheterization and had normal hemodynamics. White blood cell differential counts of these…