Improving Treatment Personalization of Pulmonary Hypertension Associated With Diastolic Heart Failure

Heart failure with preserved ejection fraction (HFpEF), is one of the leading causes of pulmonary hypertension (PH). Despite the severity of this disease, no established treatments exist for this class of PH. Nebivolol is a drug used in high blood pressure and heart failure, but not used in patients with PH. Due to some additional properties it possesses, the investigators believe nebivolol will improve disease severity in patients with PH associated with HFpEF. The hypothesis of this research study is that nebivolol improves PH severity in patients with HFpEF, as measured by hemodynamic and clinical parameters.