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2013 ; 2013
(ä): ä Nephropedia Template TP
BMJ Case Rep
2013[Sep]; 2013
(ä): ä PMID24042210
show ga
Postural orthostatic tachycardia syndrome (POTS) is a heterogeneous group of
conditions characterised by autonomic dysfunction and an exaggerated sympathetic
response to assuming an upright position. Up till recently, it was largely
under-recognised as a clinical entity. There is now consensus about the
definition of POTS as a greater than 30/min heart rate increase on standing from
a supine position (greater than 40/min increase in 12-19-year-old patients) or an
absolute heart rate of greater than 120/min within 10 min of standing from a
supine position and in the absence of hypotension, arrhythmias, sympathomimetic
drugs or other conditions that cause tachycardia. We present two cases of POTS,
followed by a discussion of its pathogenesis, pathophysiology, epidemiology and
management.
|Adrenergic beta-Antagonists/therapeutic use
[MESH]