Increased Risk for Adverse Outcomes With Mild Pulmonary Hypertension in HFpEF - The Cardiology Advisor
Increased Risk for Adverse Outcomes With Mild Pulmonary Hypertension in HFpEF - The Cardiology Advisor |
Posted: 20 May 2019 12:00 AM PDT Patients with heart failure with preserved ejection fraction (HFpEF) who have mild pulmonary hypertension (PH) are at increased risk for adverse clinical outcomes, according to a review published in the American Journal of Respiratory and Critical Care Medicine.1 PH is a prevalent HFpEF subphenotype that is due to pulmonary venous and pre-capillary remodeling from left atrial hypertension.3-5 Previous studies conducted in the United States have demonstrated a wide continuum of clinical risk relative to mean pulmonary artery pressure (mPAP), including hospitalization and mortality, which changed the mPAP threshold for defining PH in the setting of left heart disease from >25 mmHg to >20 mmHg.2,6-8,9-11 Researchers sought to determine whether mPAP 20 to 24 mmHg is an independent predictor of clinical events in HFpEF and whether the association of mPAP >20 mmHg is generalizable to international HFpEF populations.1 A study of patients hospitalized for heart failure (HF) in Japan demonstrated an increased risk for future HF hospitalizations with an mPAP ≥20 mmHg, and even in patients with an mPAP ≥15 mmHg.12 A significant increase in the risk for adverse clinical outcome was maintained in several multivariate analyses.1 This study included a relatively small sample size of 183 patients, and therefore larger international studies are needed. The review authors concluded that, "Viewing mild PH in a new light — as a high-risk clinical parameter in HFpEF — could pave a way forward for early intervention (eg, diet modification, prescription exercise enhanced diabetes control) irrespective of symptom burden."1 They added that, "In principle, such a shift may ultimately give rise to opportunities for HFpEF (or PH) prevention." References
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