Systolic vs Diastolic Heart Failure: What's the Difference?

Welcome to understanding normal heart function! Let's explore how a healthy heart works.The heart is divided into four main chambers: two atria on top and two ventricles on the bottom.During systole, or contraction, the heart muscle contracts forcefully to pump blood out to the body and lungs.In diastole, or relaxation, the heart muscle relaxes and stretches, allowing the chambers to fill with blood.This continuous cycle of contraction and relaxation maintains proper blood circulation throughout the body.The relationship between pressure and volume during each heartbeat can be visualized in what's called a pressure-volume loop.Let's follow the path of blood flow through the heart, starting from the right atrium and ending at the body's tissues.Now that we understand how a normal heart functions, we're ready to explore what happens in different types of heart failure.In systolic heart failure, the heart's ability to contract and pump blood becomes impaired.The left ventricle becomes weak and enlarged, unable to contract with sufficient force. This reduces the ejection fraction to less than forty percent.The heart walls become stretched and weakened, making them less effective at pumping blood.Several conditions can lead to systolic heart failure, including heart attacks, chronic high blood pressure, and viral infections of the heart muscle.Patients typically experience fatigue, shortness of breath, and find it difficult to perform physical activities.These symptoms occur because the weakened heart cannot meet the body's demand for oxygen-rich blood.In diastolic heart failure, the heart muscle becomes stiff and has trouble relaxing.While a normal heart can easily stretch to fill with blood, a stiff heart has thickened walls that resist filling.During the relaxation phase, or diastole, blood has difficulty entering the stiff heart.Let's examine the key characteristics of diastolic heart failure.Several factors can contribute to developing this condition.Patients with diastolic heart failure experience various symptoms that affect their daily life.Treatment focuses on managing underlying conditions and improving quality of life.Understanding the differences between heart failure types helps guide appropriate treatment and management strategies.Thanks for learning about heart failure with Spark.E!