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debility; loss of strength and energy; weakness. adj., adj asthen´ic.
neurocirculatory asthenia Da Costa syndrome.
tropical anhidrotic asthenia a rare condition occurring under conditions of heat stress, in which miliaria causes extensive occlusion of the sweat ducts producing anhidrosis and heat retention that may lead to weakness, dyspnea, tachycardia, elevation of body temperature, and collapse.
an obsolete term for a type of anxiety neurosis formerly encountered often among military personnel during times of war, in which cardiorespiratory symptoms, such as palpitation, rapid pulse, and precordial pain, were prominent.
orthostatic intoleranceA condition (OMIM:604715) characterised by lightheadedness, fatigue, altered mentation, syncope and tachycardia upon assuming an upright position, and markedly elevated serum norepinephrine.
Defects in SLC6A2, which encodes a member of the sodium:neurotransmitter symporter that regulates norepinephrine homeostasis, are a cause of orthostatic intolerance.
1. Post traumatic stress disorder, see there.
2. Panic disorder, see there.
neurocirculatory astheniaA vague syndrome featuring breathlessness, palpitations, pain in the chest, ready fatiguability and a tendency to faintness. The term is imprecise as the condition is primarily caused by anxiety. Also known as EFFORT SYNDROME or DA COSTA'S SYNDROME.
DaCosta,Jacob M., U.S. surgeon, 1833-1900.
DaCosta syndrome - a syndrome of functional nervous and circulatory irregularities. Synonym(s): neurocirculatory asthenia