Background: Treatment options for inoperable chronic thromboembolic pulmonary hypertension (CTEPH) have recently evolved with the availability of balloon pulmonary angioplasty (BPA) and pulmonary vasodilators. Our aim was to analyze the prognostic variables associated with long-term outcome in a cohort of patients with not-operated CTEPH.
Methods: From January 2006 to December 2016, 343 newly diagnosed consecutive patients with not-operated CTEPH were diagnosed and followed up in the French Reference Center for Pulmonary Hypertension. Overall long-term survival and prognostic factors according to the diagnosis period (early period, 2006-2012, vs recent period, since 2013, i.e., one year before availability of BPA) were analyzed.
Results: In the overall population, baseline New York Heart Association functional class, right atrial pressure, 6-minute walk distance (6MWD), and diagnosis period were independent predictors of survival. The 1- and 3-year survival rates of patients diagnosed in the recent period (n = 170) were 91.6% and 85.0%, compared with 89.0% and 74.3% in patients diagnosed in the early period (n = 173), respectively (p = 0.030). Multivariate analysis from patients diagnosed in the recent period found that baseline 6MWD (per 20 m increase in distance) (hazard ratio [HR], 0.879; 95% confidence interval [CI], 0.832-0.928, p < 0.001) and BPA (HR, 0.307; 95% CI, 0.099-0.957; p = 0.042) were independently associated with survival.
Conclusions: Survival of not-operated patients with CTEPH has significantly improved in the recent management era. New treatment options, including BPA, might have the potential to improve the prognosis of patients with inoperable CTEPH.
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