Right ventricular dysfunction in heart failure with preserved ejection fraction: a systematic review and meta-analysis.

Right ventricular (RV) dysfunction and pulmonary hypertension (PH) are increasingly recognized in heart failure with preserved ejection fraction (HFpEF). The prevalence and prognostic value of RV dysfunction in HFpEF have been widely but variably reported. We therefore conducted a systematic review and meta-analysis according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses.