Which statement accurately describes diastolic failure of the left heart?

The statement that accurately describes diastolic failure of the left heart is that it reflects an impaired ability to fill with blood between contractions. In diastolic heart failure, also known as heart failure with preserved ejection fraction (HFpEF), the left ventricle is unable to relax properly during the diastolic phase, leading to inadequate filling of the heart with blood. This results in symptoms related to insufficient blood flow and elevated pressures in the heart and lungs.

This condition is characterized by normal contractility of the heart muscle, meaning that while the heart can pump effectively when it contracts, it struggles during the relaxation phase. As a result, this fills the heart less efficiently, contributing to a range of symptoms such as fatigue and shortness of breath during exertion. Understanding the mechanics of filling and relaxation is crucial in recognizing the implications of diastolic failure.