Background: Pulmonary artery pulsatility index (PAPI) is a recently proposed hemodynamic index that is associated with right ventricular function independently on volume status. However, its clinical implication in patients receiving transcatheter aortic valve replacement (TAVR) remains uninvestigated. Baseline PAPI might be a promising index that stratify patients' clinical outcomes following TAVR. Methods: In this retrospective cohort study, patients with severe aortic stenosis who received TAVR and completed baseline invasive hemodynamic assessments using right heart catheterization were included. The impact of baseline PAPI on the 2-year incidence of heart failure re-hospitalizations following TAVR was investigated. Results: A total of 227 patients (median 86 years old, 29% men) were included. Median baseline PAPI was 3.6 (2.6, 5.5). PAPI was an independent predictor of the primary endpoint with adjusted hazard ratio of 7.01 (95% confidence interval: 2.08-23.2, P=0.008) with a cutoff of 2.1, which significantly stratified the 2-year cumulative incidence of primary endpoint (lower PAPI 21% versus high PAPI 5%, P=0.003). Conclusions: Baseline impaired right ventricular function, indicated by lower PAPI below 2.1, was associated with the occurrence of heart failure following TAVR. Further studies are warranted to clarify the mechanism underlying on our findings and the prognostic implication of aggressive intervention to improve PAPI. 2022 Cardiovascular Diagnosis and Therapy. All rights reserved.
Background: Pulmonary artery pulsatility index (PAPI) is a recently proposed hemodynamic index that is associated with right ventricular function independently on volume status. However, its clinical implication in patients receiving transcatheter aortic valve replacement (TAVR) remains uninvestigated. Baseline PAPI might be a promising index that stratify patients' clinical outcomes following TAVR. Methods: In this retrospective cohort study, patients with severe aortic stenosis who received TAVR and completed baseline invasive hemodynamic assessments using right heart catheterization were included. The impact of baseline PAPI on the 2-year incidence of heart failure re-hospitalizations following TAVR was investigated. Results: A total of 227 patients (median 86 years old, 29% men) were included. Median baseline PAPI was 3.6 (2.6, 5.5). PAPI was an independent predictor of the primary endpoint with adjusted hazard ratio of 7.01 (95% confidence interval: 2.08-23.2, P=0.008) with a cutoff of 2.1, which significantly stratified the 2-year cumulative incidence of primary endpoint (lower PAPI 21% versus high PAPI 5%, P=0.003). Conclusions: Baseline impaired right ventricular function, indicated by lower PAPI below 2.1, was associated with the occurrence of heart failure following TAVR. Further studies are warranted to clarify the mechanism underlying on our findings and the prognostic implication of aggressive intervention to improve PAPI. 2022 Cardiovascular Diagnosis and Therapy. All rights reserved.
Entities:
Keywords:
Right ventricular failure; aortic valve disease; hemodynamics
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