Myeloproliferative neoplasms (MPNs) are associated with an increased risk of pulmonary hypertension and right ventricular dysfunction. This observational study will include adults with confirmed polycythemia vera, essential thrombocythemia, or primary myelofibrosis.
All participants will undergo clinical assessment, laboratory evaluation, and echocardiography to assess pulmonary artery systolic pressure and right ventricular systolic function (TAPSE, FAC, and tissue Doppler S').
