List of causes of hypoglycemia

Newborns

Hypoglycemia is a common problem with an increasing incidence in critically ill or extremely low birthweight infants.[1] Its potential association with brain damage and neurodevelopment delay make it an important topic.[1] If not due to maternal hyperglycemia, in most cases it is multifactorial, transient and easily supported. In a minority of cases, hypoglycemia turns out to be due to significant hyperinsulinism, hypopituitarism or an inborn error of metabolism and presents more of a management challenge.[1][2]

  • Transient neonatal hypoglycemia
    • Prematurity, intrauterine growth retardation, perinatal asphyxia
    • Maternal hyperglycemia due to diabetes or iatrogenic glucose administration
    • Sepsis
    • Prolonged fasting (e.g., due to inadequate breast milk or condition interfering with feeding)
  • Congenital hypopituitarism
  • Congenital hyperinsulinism[1], several types, both transient and persistent
  • Inborn errors of carbohydrate metabolism such as glycogen storage disease

Young children

Single episodes of hypoglycemia may occur due to gastroenteritis or fasting, but recurrent episodes nearly always indicate either an inborn error of metabolism, congenital hypopituitarism, or congenital hyperinsulinism. A list of common causes:

Young adults

By far, the most common cause of severe hypoglycemia in this age range is insulin injected for type 1 diabetes. Circumstances should provide clues fairly quickly for the new diseases causing severe hypoglycemia. All of the congenital metabolic defects, congenital forms of hyperinsulinism, and congenital hypopituitarism are likely to have already been diagnosed or are unlikely to start causing new hypoglycemia at this age. Body mass is large enough to make starvation hypoglycemia and idiopathic ketotic hypoglycemia quite uncommon. Recurrent mild hypoglycemia may fit a reactive hypoglycemia pattern, but this is also the peak age for idiopathic postprandial syndrome, and recurrent "spells" in this age group can be traced to orthostatic hypotension or hyperventilation as often as demonstrable hypoglycemia.

  • Insulin-induced hypoglycemia
    • Insulin injected for type 1 diabetes
    • Factitious insulin injection (Munchausen syndrome)
    • Insulin-secreting pancreatic tumor (Insulinoma)
    • Reactive hypoglycemia and idiopathic postprandial syndrome
  • Addison's disease
  • Sepsis

Older adults

The incidence of hypoglycemia due to complex drug interactions, especially involving oral hypoglycemic agents and insulin for diabetes, rises with age. Though much rarer, the incidence of insulin-producing tumors also rises with advancing age. Most tumors causing hypoglycemia by mechanisms other than insulin excess occur in adults.

Causes by organ system
Cardiovascular No underlying causes
Chemical / poisoning 1,1-Dichloroethene, Ackee fruit, Jamaican vomiting sickness, Systemic monochloroacetate poisoning
Dermatologic No underlying causes
Drug Side Effect Acetohexamide, Amprenavir, Chloramphenicol, Chlorpromazine, Chlorpropamide, Cibenzoline, Clove, Ethanol, Ethionamide, Fluorodeoxyglucose, Gatifloxacin, Ginseng, Glibenclamide, Gliclazide, Glimepiride, Glipizide, Gliquidone, Glisolamide, Glisoxepide, Insulin, Insulin-like growth factor, Lanreotide, Levomepromazine, Mitiglinide, Nateglinide, Pazopanib, Pentamidine, Perazine, Pipothiazine, Pramlintide, Quinine, Repaglinide, Ritonavir, Saquinavir, Somatostatin, Sulfamethoxazole, Temafloxacin, Tolazamide, Tolbutamide, Trimethoprim
Ear Nose Throat No underlying causes
Endocrine Addison's disease, Adrenal insufficiency, Beginning stages of diabetes, Glucagon deficiency, Hypopituitarism, Hypothyroidism, Multiple endocrine neoplasia, Myxedema coma, Timme syndrome
Environmental No underlying causes
Gastroenterologic Acute fatty liver of pregnancy, Acute liver failure, Cirrhosis, Diabetic gastroparesis, Diarrhea, Dumping syndrome, Functioning pancreatic endocrine tumor, Gastric dumping syndrome, Hepatic congestion, Hepatic failure, Idiopathic postprandial syndrome, Insulinoma, Liver cancer, Malabsorption, Maldigestion, Reactive hypoglycemia, Severe hepatitis
Genetic 2-methylbutyryl-coenzyme A dehydrogenase deficiency, 3-alpha-hydroxyacyl-CoA dehydrogenase deficiency, 3-Methylcrotonyl-CoA carboxylase deficiency, ACAD9 deficiency, Alpers' syndrome, Carbohydrate-deficient glycoprotein syndrome type 1b, Carnitine palmitoyltransferase I deficiency, Carnitine-acylcarnitine translocase deficiency, Cleft lip palate pituitary deficiency, Dicarboxylicaminoaciduria, Dihydrolipoamide dehydrogenase deficiency, Donohue syndrome, Dopamine beta-hydroxylase deficiency, Familial glucocorticoid deficiency, Familial hyperinsulinemic hypoglycemia type 3, Familial hyperinsulinemic hypoglycemia type 5, Familial hyperinsulinemic hypoglycemia type 7, Fructose-1,6-diphosphatase deficiency, Fructose-1-phosphate aldolase deficiency, Galactose-1-phosphate uridyltransferase deficiency, Glucose 6 phosphate dehydrogenase deficiency, Glutaric acidemia type 2, Glycogenosis type 1a, Glycogenosis type 1b, Glycogenosis type 3, Glycogenosis type 6, Glycogenosis type 9a, Glycogenosis type 9b, Glycogenosis type 9c, Glycogenosis type V, Growth hormone deficiency (congenital), Hereditary ACTH resistance, HMG-CoA lyase deficiency, Hydroxymethylglutaryl-CoA lyase deficiency, Hyperinsulinism-hyperammonemia syndrome, Laron dwarfism, Leucine-induced hypoglycaemia, Liver glycogen synthase deficiency, Long-chain hydroxyacyl-CoA dehydrogenase deficiency, Malonyl-CoA decarboxylase deficiency, Maple syrup urine disease, Medium chain acyl-CoA dehydrogenase deficiency, Methylmalonic acidemia, Mitochondrial DNA depletion syndrome, hepatocerebral form, Mitochondrial trifunctional protein deficiency, Navajo neurohepatopathy, Nephroblastomatosis-fetal ascites-macrosomia-wilms tumor, Nesidioblastosis, Plasma membrane carnitine transporter deficiency, Propionyl-CoA carboxylase deficiency PCCA type, Short-chain acyl-CoA dehydrogenase deficiency, Short stature-pituitary and cerebellar defects-small sella turcica, Triple A syndrome, Tyrosinaemia type 1, Very-long-chain acyl-CoA dehydrogenase deficiency, Wiedemann-Beckwith syndrome, X-linked congenital adrenal hypoplasia
Hematologic Hemolytic disease of the newborn
Iatrogenic Gastrojejunostomy, Postgastrectomy syndrome, Pyloroplasty, Reye syndrome
Infectious Disease Acute meningitis, Malaria (malignant tertian), Sepsis, Visceral leishmaniasis
Musculoskeletal / Ortho No underlying causes
Neurologic Autonomic dystonia, Autonomic neuropathy, Elevated vagal tone
Nutritional / Metabolic Coenzyme Q cytochrome c reductase deficiency, Deficiency in enzymes of fat oxidation, Fructose intolerance, Galactosemia, Glycogen debranching deficiency, Hypoketonemic hypoglycemia, Ketotic hypoglycemia of infancy, Mcquarrie type infantile idiopathic hypoglycemia, Organic acidemia, Phosphoenolpyruvate carboxykinase (PEPCK) deficiency, Urea cycle disorder, Glucagon deficiency, ACAD9 deficiency, Dicarboxylicaminoaciduria, Fructose-1,6-diphosphatase deficiency, Fructose-1-phosphate aldolase deficiency, Glucose 6 phosphate dehydrogenase deficiency, Glutaric acidemia type 2, Glycogenosis type 1a, Glycogenosis type 1b, Glycogenosis type 3, Glycogenosis type 6, Glycogenosis type 9a, Glycogenosis type 9b, Glycogenosis type 9c, Glycogenosis type V, HMG-CoA lyase deficiency, Hydroxymethylglutaryl-CoA lyase deficiency, Long-chain hydroxyacyl-CoA dehydrogenase deficiency, Malonyl-CoA decarboxylase deficiency, Maple syrup urine disease, Medium chain acyl-CoA dehydrogenase deficiency, Methylmalonic acidemia, Nesidioblastosis, Propionyl-CoA carboxylase deficiency PCCA type, Short-chain acyl-CoA dehydrogenase deficiency, Tyrosinaemia type 1, Very-long-chain acyl-CoA dehydrogenase deficiency
Obstetric/Gynecologic Diabetic mother, Gestational diabetes, Intrauterine growth retardation, Pregnancy, Premature labour and/or delivery, Sheehan syndrome
Oncologic Adrenal cancer, Doege-Potter syndrome, IGF producing tumors, Tumors, Functioning pancreatic endocrine tumor, Insulinoma, Liver cancer, Mesothelioma
Ophthalmologic No underlying causes
Overdose / Toxicity Acetohexamide, Amprenavir, Chloramphenicol, Chlorpromazine, Chlorpropamide, Cibenzoline, Clove, Ethanol, Ethionamide, Fluorodeoxyglucose, Gatifloxacin, Ginseng, Glibenclamide, Gliclazide, Glimepiride, Glipizide, Gliquidone, Glisolamide, Glisoxepide, Insulin, Lanreotide, Levomepromazine, Mitiglinide, Nateglinide, Pazopanib, Pentamidine, Perazine, Pipothiazine, Pramlintide, Quinine, Repaglinide, Ritonavir, Saquinavir, Somatostatin, Sulfamethoxazole, Temafloxacin, Tolazamide, Tolbutamide, Trimethoprim
Psychiatric Anorexia nervosa, Bulimia nervosa, Munchausen syndrome
Pulmonary Mesothelioma
Renal / Electrolyte Benign glucosuria, Kidney Failure, Renal hypoglycemia, Uremia
Rheum / Immune / Allergy Autoimmune adrenalitis, Hemolytic disease of the newborn, Immunopathologic hypoglycemia, Insulin receptor antibodies
Sexual No underlying causes
Trauma Burns
Urologic No underlying causes
Dental No underlying causes
Miscellaneous Alcoholism, Binge drinking, Cachexia, Delayed separation blood sample, Drip arm sample, Fasting, Heavy exercise, Hypothermia, Idiopathic hypoglycemia, Septic shock, Starvation (acute)

Alphabetical order
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References
  1. Weston, Philip J; Harris, Deborah L; Battin, Malcolm; Brown, Julie; Hegarty, Joanne E; Harding, Jane E (2016-05-04). "Oral dextrose gel for the treatment of hypoglycaemia in newborn infants". Cochrane Database of Systematic Reviews (5): CD011027. doi:10.1002/14651858.cd011027.pub2. ISSN 1465-1858. PMID 27142842.
  2. "WHO ref. number WHO/CHD/97.1 / WHO/MSM/97.1" (PDF). Hypoglycaemia of the Newborn. Geneva: World Health Organization. 1997. pp. 4, 19. Retrieved 6 April 2010.
  3. H. Huopio1, S.-L. Shyng, T. Otonkoski3, and C. G. Nichols4 (2002-08-01). "KATP channels and insulin secretion disorders". Ajpendo.physiology.org. Retrieved 2012-03-10.CS1 maint: multiple names: authors list (link)
  4. "Familial Leucine-Sensitive Hypoglycemia of Infancy Due to a Dominant Mutation of the β-Cell Sulfonylurea Receptor". Jcem.endojournals.org. 2004-09-01. Retrieved 2012-03-10.
  5. Umesh Masharani, MB, BS, MRCP(UK) (2007). "The Hypoglycemic states – Hypoglycemia". The Hypoglycemic states. Armenian Medical Network.CS1 maint: multiple names: authors list (link)
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