A typical heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, …

2022年10月8日 · A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better …

2024年8月13日 · Heart failure. This is one of the most common complications of heart disease. The heart can't pump enough blood to meet the body's needs. Heart attack. A heart attack can …

2024年1月19日 · Heart transplants are performed when other treatments for heart problems haven't worked, leading to heart failure. In adults, heart failure can be caused by: A weakening …

2022年5月4日 · Heart failure. Heart failure may occur if the left lower heart chamber (left ventricle) becomes enlarged. In heart failure, the heart can't pump the proper amount of blood …

2022年5月27日 · A heart structure problem present before birth (congenital heart defect) causes irregular blood flow between the heart chambers or blood vessels. In adults, worrisome heart …

The upper chambers — the right and left atria — receive incoming blood. The lower chambers — the right and left ventricles — pump blood out of your heart. The heart valves, which keep …

2024年12月7日 · Surgery is done to repair or replace the aortic valve. The type of surgery done depends on the specific heart valve condition and your symptoms. Aortic valve replacement. …

2023年11月22日 · In heart valve disease, one or more of the valves in the heart doesn't work properly. There are four heart valves. They keep blood flowing through the heart in the correct …

2022年6月3日 · Growth is rapid this week. Just four weeks after conception, the neural tube along your baby's back is closing. The baby's brain and spinal cord will develop from the neural tube. …