Pulmonary endarterectomy (PEA) is an effective treatment for chronic thromboembolic pulmonary hypertension. Hemodynamic instability after PEA is related to systemic inflammatory network activation.
Interleukin-6, interleukin-8 and procalcitonin activation may be among the neurohumoral factors responsible for systemic vasoplegia and cardio-depression after PEA.