Venous Thromboembolism Prevention (VTE) Venous thromboembolism is a condition in which a blood clot (thrombus) develops in the body. A thrombus usually occurs in a deep vein in the leg or the pelvis (DVT), but it can also occur in the arm. Sometimes, pieces of a thrombus can break off from its original place of …
What is a Venous Ulcer? Venous ulcer is a shallow sore on your lower leg. It is caused by poor circulation in your veins. Venous ulcer is the most common type of lower leg ulcer. You may have venous ulcers on one leg or on both legs. This condition most often develops around your ankles. …
What is Ventilation–Perfusion Scan Ventilation perfusion scan is a procedure to look at airflow and blood flow in the lungs. It is most often done to look for a blood clot that may have traveled to the lungs (pulmonary embolus). During this scan, radioactive compounds are injected into the bloodstream and are also breathed in. …
What is a Ventilator Ventilator is a machine that helps you breathe by moving air in and out of your lungs. The ventilator connects to a tube that is placed in your mouth, nose, or neck (tracheostomy). The tube goes into the windpipe (trachea). The tube delivers warm, moist, oxygen-rich air to the lungs and …
What is Ventral Hernia Ventral hernia is a bulge of tissue from inside the abdomen that pushes through a weak area of the muscles that form the front wall of the abdomen. The tissues inside the abdomen are inside a sac (peritoneum). These tissues include the small intestine, large intestine, and the fatty tissue that …
What is Ventricular Assist Device (VAD)? A ventricular assist device is a mechanical pump that helps the two lower chambers of the heart (ventricles) pump blood. You may need a VAD if you have a medical condition that affects the heart muscle, such as: Heart failure. A large heart attack (myocardial infarction). An infection that …
What is Ventricular Fibrillation Ventricular fibrillation, also called V-fib, is a type of abnormal heart rhythm (arrhythmia) that affects the lower chambers of the heart (ventricles). When V-fib happens, disorganized electrical signals in the heart cause the ventricles to quiver instead of pumping blood normally. As a result, oxygen does not reach the brain and …