Improvement of the treatment and diagnosis of hypertension and heart failure (HF) contributes to an increase in life expectancy of the population and, accordingly, its aging. The problem of diagnosing and predicting HF with preserved ejection fraction (HFpEF) is currently one of the urgent problems. The role of left atrial function in the development and course prediction of HF are the subject of scientific study. This review provides an analysis of recent studies on left atrial function in HF patients.