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Postural orthostatic tachycardia syndrome (POTS) is one of a group of disorders that have orthostatic intolerance (OI) as their primary symptom.OI describes a condition in which an excessively reduced volume of blood returns to the heart after an individual stands up from a lying down position.n POTS, the lightheadedness or fainting is also accompanied by a rapid increase in heartbeat of more than 30 beats per minute, or a heart rate that exceeds 120 beats per minute, within 10 minutes of rising. The faintness or lightheadedness of POTS are relieved by lying down again.
Postural Orthostatic Tachycardia syndrome. Postural orthostatic tachycardia syndrome (POTS) is a chronic condition affecting the regulation of pressure that is most often seen after the onset of puberty.POTS results from a problem with the autonomic nervous system which controls âautomaticâ functions, or those that we don't have to think about.ostural Orthostatic Tachycardia syndrome. Postural orthostatic tachycardia syndrome (POTS) is a chronic condition affecting the regulation of pressure that is most often seen after the onset of puberty.