Michael A. Samara M.D.

Causes of Fainting A person faints or loses consciousness for a brief time when the brain does not get enough oxygen. Fainting or passing out is also medically called syncope. Before fainting, people may experience lightheadedness, dizziness, weakness, and nausea. Others describe fainting as...

What is furosemide?Furosemide is an oral prescription medicine, which is available under the brand name Lasix. This drug is also available in its generic form. The generic version of the drug mostly costs less than the branded ones. Furosemide is considered as a water pill or a loop diuretic that...

IntroductionDoctors who specialize in the diagnosis and treatment of conditions or diseases of the cardiovascular system (the heart and blood vessels) are called heart doctors or cardiologists. These specialists are trained to identify, treat, and help prevent heart issues. There are also different...

Atrial fibrillation is a condition that causes abnormal vibrations in the heart chambers. It leads to changes in the heartbeat ratesand the pulse. As a result, it may cause clotting of blood in the heart chambers. Such quivering sensations are mostly experienced in the atria and ventricle chambers...

What are the Triggers of Atrial Fibrillation?Atrial fibrillation (A-Fib) is a condition that affects the upper chambers of the heart, also known as the atria.In a healthy human heart, the electrical impulses pass through the atria through a contraction to the ventricles and fibers to complete a...

High blood pressure or hypertension is a chronic condition that may lead to other complications, including organ damage, gradually over a period of time. The blood pressure may become very high and severe all of a sudden resulting in a condition referred to as hypertensive crisis. Hypertensive...