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Long-term survival in pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension: Insights from a referral center in Portugal.
Portuguese Journal of Cardiology : An Official Journal of the Portuguese Society of Cardiology 2018 September
OBJECTIVES: This study aims to assess the long-term survival of pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) patients followed in a Portuguese pulmonary hypertension (PH) referral center.
METHODS: We studied PAH and CTEPH patients diagnosed between January 2005 and December 2016. Cumulative survival was estimated using the Kaplan-Meier method. Survival trends were compared over two periods (2005-2010 vs. 2011-2016).
RESULTS: Of the 142 studied PH patients (age 54±18 years; 31% male), 47 had CTEPH and 95 had group 1 PH. Most patients with CTEPH and idiopathic/heritable PAH (I/HPAH) were in NYHA III-IV at diagnosis (64% and 57%, respectively). At the time of death, 31% of patients with connective tissue disease (CTD)-associated PAH (CTD-PAH) and all I/HPAH patients were on double or triple combination therapy. No patient underwent lung transplantation. Pulmonary endarterectomy or angioplasty were performed in 36% of CTEPH patients. Age at diagnosis tended to increase over time in CTD-PAH (53±15 vs. 63±15 years; p=0.13) and I/HPAH (39±15 vs. 51±19 years; p=0.10). The five-year survival estimates for I/HPAH, CTD-PAH and CTEPH patients were 80%, 52%, and 81%, respectively. Over time, CTD-PAH and CTEPH showed better five-year survival (33 vs. 67% and 77 vs. 84%), but I/HPAH did not (84 vs. 75%).
CONCLUSIONS: Our data indicate a trend toward improved survival over time of CTD-PAH and CTEPH patients treated at a Portuguese referral PH center. Earlier diagnosis, increasing use of parenteral prostanoids, and surgical treatment may further improve PH prognosis.
METHODS: We studied PAH and CTEPH patients diagnosed between January 2005 and December 2016. Cumulative survival was estimated using the Kaplan-Meier method. Survival trends were compared over two periods (2005-2010 vs. 2011-2016).
RESULTS: Of the 142 studied PH patients (age 54±18 years; 31% male), 47 had CTEPH and 95 had group 1 PH. Most patients with CTEPH and idiopathic/heritable PAH (I/HPAH) were in NYHA III-IV at diagnosis (64% and 57%, respectively). At the time of death, 31% of patients with connective tissue disease (CTD)-associated PAH (CTD-PAH) and all I/HPAH patients were on double or triple combination therapy. No patient underwent lung transplantation. Pulmonary endarterectomy or angioplasty were performed in 36% of CTEPH patients. Age at diagnosis tended to increase over time in CTD-PAH (53±15 vs. 63±15 years; p=0.13) and I/HPAH (39±15 vs. 51±19 years; p=0.10). The five-year survival estimates for I/HPAH, CTD-PAH and CTEPH patients were 80%, 52%, and 81%, respectively. Over time, CTD-PAH and CTEPH showed better five-year survival (33 vs. 67% and 77 vs. 84%), but I/HPAH did not (84 vs. 75%).
CONCLUSIONS: Our data indicate a trend toward improved survival over time of CTD-PAH and CTEPH patients treated at a Portuguese referral PH center. Earlier diagnosis, increasing use of parenteral prostanoids, and surgical treatment may further improve PH prognosis.
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