Mortality predictor in heart failure patients with preserved ejection fraction: pulmonary artery pulsatility index.

İntroduction: The pathophysiology of heart failure with preserved ejection fraction has not been clearly elucidated. Therefore, there is not enough information about the prediction of poor prognosis in these patients. Our aim is to investigate whether the pulmonary artery pulsatile index, derived from right heart catheterisation parameters, is associated with mortality in these patients.

Materials and methods: The study was designed retrospectively. Patients who underwent right heart catheterisation between 2016 and 2023 and were diagnosed with heart failure with preserved ejection fraction were included in the study. The patients were divided into 2 groups. Dead patients were included in the first group, and surviving patients were included in the second group. Basic characteristics, right heart catheterisation results, pre-catheter blood and echocardiography parameters, and pulmonary artery pulsatile index were compared between both groups.

Results: Pulmonary artery pulsatile index, mean pulmonary artery pressure, and body mass index were found to be independent predictors of mortality in heart failure patients with preserved ejection fraction. A PAPi value of <2.84 was found to have 76.2% sensitivity and 77% specificity in predicting mortality in heart failure patients with preserved ejection fraction.

Conclusion: This study shows how important the pulmonary artery pulsatile index is in predicting mortality in heart failure patients with preserved ejection fraction. Since low levels of pulmonary artery pulsatile index at the time of diagnosis may predict poor prognosis, importance should be given to follow-up and treatment in these patients. Routine use of this index may contribute to reducing mortality and morbidity in patients.