What are the effects of low ejection fractions?
Low ejection fraction (EF), also known as the fraction of the left ventricular ejection fraction (LVEF), suggests that the left ventricular is pressed with insufficient amount of blood with each heart rhythm to oxygenation of the body. Measured differently by echocardiogram, heart catheter, heart stress test or other diagnostic testing, normal ejection fraction is usually 50 to 70 percent of the chamber volume. The low ejection fraction is considered to be 35 to 40 percent or less ventricular volume and testifies to systolic heart failure or congestive heart failure (CHF). The effects of low ejection fractions are similar to the effects of an unexpected road block on operation: blood such as traffic, baches and "stalls" in the lungs and limbs of the body. These effects create symptoms characteristic of congestive heart failure, such as shortness of breath, fatigue and swelling.
Aryey overview of cardiovascular anatomy and physiology helps to explain the effects of nEjection fraction. The larger and muscle left chamber is designed to pump oxygenated blood into the rest of the body and get blood from the upper head of the heart, which in turn gets blood rich in oxygen from the pulmonary artery. When the left chamber extends less than half of its volume, the blood is backed up by the system to the lungs. Excess blood and fluid in lung tissue results in shortness of breath and frequent, chronic, unproductive cough. Knohlost-DECH intensifies when the patient lies down and the backed blood can flow, unmoined gravity, lung congestion.
Blood backup secondary to low ejection fraction of the left ventricle also refers to limbs. Blood pools in usually dependent lower limbs, causing swelling from excess fluid. This situation may deteriorate because the excess fluid then prevents oxygen blood from reaching these tissues. There may be a characteristic bluish shade and skin disintegration.
low ejection fraction also leads to long -term hypoxia nEbo low oxygenation to all body tissues. Chronic hypoxia results in extreme fatigue and very early weakness of the onset with most physical activity. Reasons and memory may be overcast and intermittent confusion may result in low oxygen levels in the brain. Heart - muscle itself - can be affected by the hypoxic situation and develop irregular heart rhythms. The heart murmur may also be caused by blood backup.