It’s how much blood your heart pumps in 1 minute. Your doctor uses the measurement to see if you might have heart problems or to check how well a treatment works. Your blood carries oxygen and ...

Cardiogenic shock is the leading cause of death among patients hospitalized with acute myocardial infarction (MI). Understanding the mechanisms for acute pump failure is therefore important. The aim ...

The left and right ventricles each pump the same volume of blood through the aorta and pulmonary artery. The volume of blood pumped through each ventricle per minute can be calculated as cardiac ...

New research helps explain how the body's "flight-or-fight" response is mediated. The study may provide new answers to the question of how the heart pacemaker -- the sinoatrial node -- is regulated.

Cardiac tamponade occurs when a pericardial effusion exerts a significant amount of pressure externally on the heart, resulting in impaired right ventricular filling eventually causing decreased ...

The acute ventricular response to changes in cardiac workload depends on cardiac factors such as Ca ++ influx and activation of the myofilaments, fiber stretch prior to excitation, and factors ...

Heart rate is measured in beats per minute (bpm). During exercise the heart rate increases so that sufficient blood is taken to the working muscles to provide them with enough nutrients and oxygen. An ...

The major effects of aging on the cardiovascular system are the decreased compliance of the arterial system, a dropout of myocytes and atrial pacemaker cells, and increasing fibrosis of the cardiac ...