A hemorrhoid is a swollen vein located in the anus or rectum, much like a varicose vein. It is possible to have hemorrhoids without any symptoms, but most people experience irritation--resulting in itching, burning, swelling, and pain. It's essential for comfort to deal with hemorrhoids when you not
Atherosclerosis is a disease of the arterial blood vessels (arteries), in which the walls of the blood vessels become thickened and hardened by "plaques."
Echocardiographic diagnosis and assessment of ischemic mitral regurgitation are critical to gauge prognosis after myocardial infarction. What is the best approach?
How does the diagnostic ability of transthoracic Doppler echocardiography in the left anterior descending coronary artery compare to that of myocardial perfusion imaging in patients referred for MPI?
The basics about vascular neurology: Learn why the field of vascular neurology was born and why vascular neurologists are so important for the treatment of strokes.
Cholesterol is a substance made by your body and found in animal food. High-density lipoprotein (HDL cholesterol) is needed to carry unhealthy fats from the bloodstream to be removed from the body. Low-density lipoprotein (LDL cholesterol) is the "bad" cholesterol that can clog arteries and lead t
Triglycerides are a type of fat found in the bloodstream. Your doctor may test your triglycerides levels as one factor in determining your risk for heart disease. According to the American Heart Association, a value of less than 150 mg/dL is normal. Above 200 mg/dL is considered to be high, and abo
There are two main types of electrical signal: those that carry alternating currents (AC) and direct currents (DC). AC signals are sinusoidal in nature, and the voltage has an oscillatory dependence. DC signals operate at fixed voltage and have no time variation. Electrical (square wave) pulses occu
Cholesterol is a soft waxy substance found in the bloodstream. While a certain level of cholesterol is necessary for certain bodily functions, too much cholesterol in the blood can lead to problematic health issues. High cholesterol is a primary risk factor for heart disease.`
Familial hypercholesterolemia is a term used to describe a genetic condition where high levels of low-density lipoprotein (LDL) cholesterol are found in the blood. In layman's terms, you inherited your high cholesterol from your family. This puts you at a significant disadvantage. Not only is your l
An echocardiogram is an ultrasound of the heartHeart image by Blue Frog from Fotolia.comIn simple terms, an echocardiogram refers to an ultrasound of the heart. It makes use of high frequency sound waves to capture images of the heart. This is a common procedure used by doctors to see...