Association of renal resistance index and arterial stiffness on clinical outcomes in patients with mild-to-moderate rena
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ORIGINAL ARTICLE
Association of renal resistance index and arterial stiffness on clinical outcomes in patients with mild‑to‑moderate renal dysfunction and presence or absence of heart failure with preserved ejection fraction Yoshihiro Aizawa1 · Yasuo Okumura1 · Yuki Saito1 · Yukitoshi Ikeya1 · Toshiko Nakai1 · Ken Arima2 Received: 9 March 2020 / Accepted: 17 June 2020 © Springer Japan KK, part of Springer Nature 2020
Abstract The renal arterial resistance index (RI) and the brachial–ankle pulse wave velocity (baPWV) are known as indicators of renal vascular resistance/systemic vascular damage and systemic arterial stiffness. The clinical significance of those parameters on clinical outcomes is poorly known in patients with and without heart failure with preserved ejection fraction (HFpEF). Baseline clinical data and the RI assessed by renal Doppler data, baPWV were obtained in patients with (HFpEF group, n = 60) and without HFpEF (non-HFpEF group, n = 51) who had a reduced estimated glomerular filtration rate (eGFR) of > 30 and
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