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Intermittent hypothermia

MedGen UID:
Concept ID:
Synonym: Intermittent abnormally low body temperature
HPO: HP:0005964


Episodes of reduced body termperature. [from HPO]

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVIntermittent hypothermia

Conditions with this feature

Deficiency of aromatic-L-amino-acid decarboxylase
MedGen UID:
Concept ID:
Disease or Syndrome
Aromatic L-amino acid decarboxylase deficiency (AADCD) is an autosomal recessive inborn error in neurotransmitter metabolism that leads to combined serotonin and catecholamine deficiency (Abeling et al., 2000). The disorder is clinically characterized by vegetative symptoms, oculogyric crises, dystonia, and severe neurologic dysfunction, usually beginning in infancy or childhood (summary by Brun et al., 2010).
Orthostatic hypotension 1
MedGen UID:
Concept ID:
Disease or Syndrome
Dopamine beta-hydroxylase (DBH) deficiency is characterized by lack of sympathetic noradrenergic function but normal parasympathetic and sympathetic cholinergic function. Affected individuals exhibit profound deficits in autonomic regulation of cardiovascular function that predispose to orthostatic hypotension. Although DBH deficiency appears to be present from birth, the diagnosis is not generally recognized until late childhood. The combination of ptosis of the eyelids in infants and children, together with hypotension, is suggestive of the disease. In the perinatal period, DBH deficiency has been complicated by vomiting, dehydration, hypotension, hypothermia, and hypoglycemia requiring repeated hospitalization; children have reduced exercise capacity. By early adulthood, individuals have profound orthostatic hypotension, greatly reduced exercise tolerance, ptosis of the eyelids, and nasal stuffiness. Presyncopal symptoms include dizziness, blurred vision, dyspnea, nuchal discomfort, and chest pain; symptoms may worsen in hot environments or after heavy meals or alcohol ingestion. Life expectancy is unknown, but some affected individuals have lived beyond age 60 years.

Professional guidelines


Williams GO
J Fam Pract 1981 Feb;12(2):231-7. PMID: 7462933

Recent clinical studies


Vera CN, Linam WM, Gadde JA, Wolf DS, Walson K, Montoya JG, Rostad CA
Pediatrics 2020 Feb;145(2) Epub 2020 Jan 15 doi: 10.1542/peds.2019-1425. PMID: 31941759

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