How to reduce the heavy preload of the heart?

The heart is one of the most burdened organs in the human body, because the heart has to keep beating all the time and cannot rest for a moment, which makes the heart prone to fatigue symptoms. Therefore, for people's health, it is very necessary for the heart to have proper rest to reduce the burden. Heavy cardiac preload is one of the specific manifestations of cardiac fatigue. Let’s take a look at how to reduce heavy cardiac preload.

Cardiac preload, also known as volume load, refers to the load encountered before the myocardium contracts. It is actually a response to the end-diastolic volume of the ventricle or the end-diastolic wall tension of the ventricle. Preload is an important factor in regulating stroke volume. The preload increases, that is, the initial length of the myocardium increases, the myocardial contractility increases, and the stroke volume increases. However, if the preload increases excessively and exceeds the optimal initial length of the myocardial fibers, the myocardial contractility will be weakened and the stroke volume will decrease. If the preload increases for a long time, the ventricles will dilate compensatorily and the contractility will weaken, thus causing heart failure. The preload of the right ventricle is related to the venous return. Within a certain range, as the venous return increases, the preload increases, such as in mitral regurgitation, aortic regurgitation, tricuspid regurgitation, large amounts of rapid intravenous fluid infusion, and congenital heart disease with left-to-right shunt.

One of the four ways to reduce cardiac preload:

When the human body is in a semi-recumbent position, blood in the lower limbs and abdomen is easily congested due to gravity, which reduces the amount and pressure of blood flowing into the heart, which is called reducing the preload of the heart. For some people with potential heart failure, resting in a semi-recumbent position can avoid paroxysmal cardiac dyspnea at night.

For people with high blood pressure, controlling blood pressure is an important measure to protect the heart. When blood pressure rises, the resistance of the heart to eject blood into the aorta increases, which is medically called increased afterload. Over time, it will inevitably cause myocardial hypertrophy and heart enlargement.

Avoid fatty meat and other greasy foods, and eat less sweets. The daily diet should be a combination of lean meat and beans, coarse grains and fine grains, and vegetables and fruits. Eat until you are 80% to 90% full at each meal. Excessive intake of food, water and other beverages can quickly increase blood volume, thereby increasing the cardiac workload in patients with heart failure.

People's emotions have a certain relationship with the occurrence of heart disease. People who have great mood swings and are easily excited have a heart disease incidence rate about 6 times higher than those who remain calm. Therefore, patients with heart failure should maintain emotional stability to prevent increasing the cardiac burden on patients with heart failure.