Neurally Mediated Hypotension

It usually appears as fainting or a feeling of dizziness after standing for a good while: neurally mediated hypotension occurs when an incorrect signal between the heart and the nervous system causes a sudden drop in blood pressure and heart rate.

Frequent symptoms: dizziness, blurred vision, sweating, paleness and, at times, brief loss of consciousness, especially after standing still or in response to heat or intense emotions.

Which specialist treats it? The cardiologist is usually the one who studies this type of fainting, with support from the internist or the general practitioner in the initial assessment; in the event of a severe episode or fall, the emergency physician may step in.

When to seek care? If you have repeated fainting or unexplained dizziness when standing, it's advisable to discuss it with a professional to rule out other causes.