Pulmonary endarterectomy in the octogenarian population: safety and outcomes.

Aims: Aim of the study was to verify the feasibility, safety and efficacy of pulmonary endarterectomy (PEA) in octogenarian patients with chronic thromboembolic pulmonary hypertension.
Methods: We retrospectively analyzed 635 chronic thromboembolic pulmonary hypertension patients who underwent PEA at our center and were followed-up for at least 1 year. The end-points of the study were in-hospital mortality, hemodynamic results at 1 year and long-term survival.
Results: In-hospital mortality was 4, 10 and 17%, respectively, for 259 patients under the age of 60 years, 352 aged between 60 and 79 years and 24 octogenarians (P = 0.006 octogenarians vs. <60 years). At multivariable analysis, age and pulmonary vascular resistances were independent risk factors for mortality (P = 0.021 and P < 0.001, respectively). At 1 year, the improvement in cardiac index was lower and the distance walked in 6 min was poorer for octogenarians than for the other two groups (both P = 0.001). Survival after hospital discharge was similar over a median follow-up period of 59 months (P = 0.113). Although in-hospital mortality and long-term survival are similar in octogenarians as compared with patients aged between 60 and 79, the improvement in cardiac index and in functional capacity at 1 year are lower in this very elderly population.
Conclusion: Age over 80 years should not be a contraindication to PEA surgery in selected patients operated on in referral centers.
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