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What is Postural ohostatic tachycardia syndrome is characterized by all except? and explain in detail?
Postural ohostatic tachycardia syndrome (POTS)- symptomatic ohostatic intolerance without ohostatic hypotension, associated with either HR of >120/min or increase in HR >30/min when standing that subside on sitting / lying down. The symptoms of ohostatic intolerance include lightheadedness, blurred vision, palpitation and nausea. Usually affects women more than men. This syndrome develops between 15 and 50 years of age.