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During a protected percutaneous coronary intervention (Protected PCI) procedure, "the Impella 2.5 heart pump helps maintain a stable heart function by pumping blood for the heart. This gives a weak heart muscle an opportunity to rest and reduces the heart’s workload, preventing the heart from being overstressed by the procedure as coronary ...
Cardiac stress testing is used to determine to assess cardiac function and to disclose evidence of exertion-related cardiac hypoxia. Radionuclide testing using thallium or technetium can be used to demonstrate areas of perfusion abnormalities. With a maximal stress test the level of exercise is increased until the person's heart rate will not ...
The primary responsibility of the heart is to pump blood throughout the body. It pumps blood from the body — called the systemic circulation — through the lungs — called the pulmonary circulation — and then back out to the body. This means that the heart is connected to and affects the entirety of the body.
The period of relaxation that occurs as the chambers fill with blood is called diastole. Both the atria and ventricles undergo systole and diastole, and it is essential that these components be carefully regulated and coordinated to ensure blood is pumped efficiently to the body. [1] The cardiac cycle as correlated to the ECG
The narrowing of blood vessels leads to an increase in peripheral resistance, thereby elevating blood pressure. While vasoconstriction is a normal and essential regulatory mechanism for maintaining blood pressure and redistributing blood flow during various physiological processes, its dysregulation can contribute to pathological conditions.
Heart failure is defined as a condition in which the heart is unable to pump enough blood to meet the demands of the body. [59] Patients with heart failure may experience breathlessness especially when lying flat, as well as ankle swelling, known as peripheral oedema .
Most are reserved for people with a body mass index (BMI) of at least 30 (which is considered obesity) or at least 27 with weight-related health concerns like type 2 diabetes, high blood pressure ...
The heart is the driver of the circulatory system, pumping blood through rhythmic contraction and relaxation. The rate of blood flow out of the heart (often expressed in L/min) is known as the cardiac output (CO). Blood being pumped out of the heart first enters the aorta, the largest artery of the body.
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