which function of the cardiovascular system is often affected by ischemia course hero

by Kareem Raynor 3 min read

What happens to the artery walls?

Arterial walls become less elastic, thick, and hard. The lumen gradually narrows and may become obstructed. This leads to diffuse ischemia and necrosis.

What is the purpose of angiography?

Angiography- assists in visualization of blood flow through the coronary arteries.

What happens if you have inadequate tissue perfusion?

Inadequate tissue perfusion may lead to ischemia or infarction

What causes chest pain?

Chest pain caused by myocardial ischemia(deficit of oxygen to the heart muscle).

What is the role of macrophages in lipid accumulation?

Lipid accumulation- macrophages engulf LDL (now a foam cell) which penetrates the lining of the vessel. Foam cells accumulate and form a fatty streak. Macrophages release growth factors that stimulate smooth muscle proliferation.

What is the plaque that forms inside the walls of arteries?

The presence of atheromas = plaques consisting of lipids, cells, fibrin, and cell debris, often with attached thrombi, which form inside the walls of large arteries.

What is the term for the bad cholesterol?

Low-density lipoprotein (LDL)- referred to as the "bad cholesterol".

What is nuclear cardiology?

Nuclear cardiology. diagnostic specialty using radiologic procedures to aid in the diagnosis of cardiologic conditions. An x-ray examination that enables study of the patient's blood vessels and organs by injecting contrast media into the blood vessels and viewing the results on x-ray film. angiography.

What is a laser hole in the heart?

A procedure in which areas of cardiac ischemia are exposed to laser beam to create holes in surface of the heart.

What is a change of batteries in a pacemaker?

A change of batteries in a pacemaker or pacing cardioverter-debrillator is a removal of old and reimplantation of a new generator. How are the removal and reimplantation reported

What causes rapid heartbeats?

congental defect in which there is short circuit between atria and ventricles, results in rapid heartbeats. Condition due to muscle fiber that remains after heart developed that interrupts normal conduction.

Can pericardiocentesis be performed with radiology?

Pericardiocentesis may be performed using radiologic (ultrasound) guidance. Is this coded separately from the Radiology section?

What is the cardiovascular system?

The cardiovascular system consists of the pump and vessels that distribute blood to all areas of the body. This system allows for the delivery of needed substances to the cells of the body as well as for the removal of wastes.

What is the branch of medicine that focuses on the diagnosis and treatment of conditions and diseases of the cardiovascular system?

The branch of medicine involving diagnosis and treatment of conditions and diseases of the cardiovascular system. Physician is a cardiologist.

What causes insufficient blood supply to the heart muscle?

Insufficient blood supply to the heart muscle due to an obstruction of one or more coronary arteries. May be caused by atherosclerosis and may cause angina pectoris and myocardial infarction.

Why do people need heart transplants?

One of the most common reasons a patient may require a heart transplant. congenital septal defect (CSD) A hole, present at birth, in the septum between two heart chambers; results in a mixture of oxygenated and deoxygenated blood. There can be an atrial septal defect (ASD) and a ventricular septal defect (VSD).

What is the hole in the heart?

A hole, present at birth, in the septum between two heart chambers; results in a mixture of oxygenated and deoxygenated blood. There can be an atrial septal defect (ASD) and a ventricular septal defect (VSD).

What is the yellow fatty deposit in an artery that is the hallmark of atherosclerosis?

A yellow, fatty deposit of lipids in an artery that is the hallmark of atherosclerosis. Also called an atheroma.

What causes myocardial disease?

General term for a disease of the myocardium. Can be caused by alcohol abuse, parasites, viral infection, and congestive heart failure. One of the most common reasons a patient may require a heart transplant.