Ethan A. Halm MD MPH


Orthostatic Hypotension

Orthostatic hypotension is a rapid and sudden decrease in blood pressure that occurs when a person changes position, such as rising from a sitting or lying position to standing, or when standing motionless in one position. Symptoms of orthostatic hypotension may include lightheadedness, dizziness, or fainting (syncope)…

Heart Murmur

A heart murmur is a sound made by blood moving through the chambers and valves of the heart or through the blood vessels near the heart. The sounds can be heard through a stethoscope. Heart murmurs are common in infants and children and are harmless in most cases. The murmurs usually are not a problem, require no…

Heart Murmur

Discusses heart murmur, an extra sound the blood makes as it flows through the heart. Covers harmless (innocent) murmurs and abnormal murmurs. Includes info on heart valve damage. Discusses tests by a cardiologist including electrocardiogram (ECG).

Carotid Artery Stenosis

Carotid artery stenosis is a narrowing of one or both of the carotid arteries. These blood vessels supply blood to your brain. They can be narrowed and damaged by the buildup of fatty deposits called plaque (say “plak”). If this plaque breaks open, it may form a blood clot. A blood clot could move to the brain and cause…

Orthostatic Hypotension

Orthostatic hypotension is a rapid and sudden decrease in blood pressure that occurs when a person changes position, such as rising from a sitting or lying position to standing, or when standing motionless in one position. Symptoms of orthostatic hypotension may include lightheadedness, dizziness, or fainting (syncope)…