Prevalence and prognostic significance of heart failure with preserved ejection fraction in systemic sclerosis.

Aim: Heart failure with preserved ejection fraction (HFpEF) is a clinically relevant complication of systemic sclerosis (SSc). We aimed to examine the prevalence, correlates and prognostic significance of HFpEF in an SSc population. Materials & methods: HFpEF was defined by the presence of exertional dyspnoea, abnormal cardiac structure (left ventricular hypertrophy or left atrial enlargement) and NT-proBN (>125 pg/ml). Results: Of the 155 studied patients, 27% had HFpEF criteria. These patients were older, had more cardiovascular risk factors, and were more likely to have atrial fibrillation or interstitial lung disease. Conclusion: Over a median follow-up of 9 years, SSc patients with HFpEF had a 3.4-fold increased risk of dying (HR: 3.37, 95% CI: 1.21-9.31), although this association has lost statistical significance after adjusting for age. On the contrary, NT-proBNP was an independent predictor of a worse prognosis.