We assessed risk factors for acute worsening renal function in HF patients.
Hypertension is associated with AWRF in both HFpEF and HFrEF patients.
A history of hypertension was important as a risk factor for AWRF in HFpEF.
On the other hand, high blood pressure at admission was important in HFrEF.
Calcium channel blocker was an independent risk factor in HFpEF, but not in HFrEF.