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AF, atrial fibrillation; CONUT, controlling nutritional status; ECG, electrocardiogram; HF, heart failure; HFmrEF, heart failure with mildly reduced ejection fraction; HFpEF, heart failure with preserved ejection fraction; HFrEF, heart failure with reduced ejection fraction; NRI, nutritional risk index; PNI, prognostic nutritional index; TTE, transthoracic echocardiography.
