Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a form of pulmonary hypertension (PH) arising from pulmonary vascular obstruction at varying levels within the pulmonary vascular bed, due to chronic pulmonary emboli. The cornerstone of treatment for CTEPH is pulmonary thromboendarterectomy (PTE), a specialized surgery to remove the chronic vascular obstruction. At experienced centers, PTE leads to marked hemodynamic improvement and, in many cases, normalization of cardiopulmonary hemodynamics. However, increasing evidence supports the fact that a significant percentage of patients will have persistent PH after PTE. No consensus exists on the optimal approach to post-PTE patient assessment, and often the most experienced CTEPH centers have little experience in the direct follow-up care of the CTEPH patient post PTE. In this article, we will discuss a practical approach to patient assessment after PTE to help guide clinicians on how to recognize significant PH following PTE. In doing so, we identify the true phenotype of persistent PH post PTE so that appropriate patients can be further helped with the evolving therapies for the management of CTEPH.
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