Leprechaunism
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(Donohue syndrome)
Very rare. Severe congenital insulin resistance. Autosomal recessive transmission of a mutation of the INSR gene (on 9p13.2) coding for the insulin receptor.
Clinical presentation:
- intrauterine and postnatal growth retardation with hyperinsulinism and episodes of hypo- or hyperglycemia (after meals): muscle atrophy, lipoatrophy, thick skin, intrahepatic cholestasis
- hyperandrogenism: polycystic ovary syndrome, gynecomastia, macropenis or hypertophy of the clitoris
- excessive growth of some organs: hypertrophic cardiomyopathy, hepatomegaly, splenomegaly
- typical facies: elfin facies (leprechaun = gnome of irish folklore) with broad forehead, wide palpebral fissures, a nose with a bulbous tip, anteverted nostrils, an arched palate, a large mouth and low implanted large ears.
Generally, early death in the first year of life.
Still experimental treatment: continuous subcutaneous injection of recombinant IGF - 1 (insulin-like growth factor 1) which seems to restore glucose metabolism and decrease insulin levels.
Anesthetic implications:
preoperative echocardiography; check blood glucose, liver function and hemostasis; hypotrophic patient with abdominal distension; risk of difficult mask ventilation (reduced thoracic compliance); risk of aspiration pneumonitis: (advice: cricoid pressure and continuous suction on the gastric tube or gastrostomy for the time of mask ventilation); management of a cardiomyopathy.
References :
- Planchenault D, Martin-Coignard D, Rugemintwaza D, Bah A-G et al.
Le syndrome de Donohue ou lepréchaunisme : à propos d’un cas.
Arch Pédiatr 2014 ; 21 : 206-10.
- de Bock M, Hayes I, Semple R.
Donohue syndrome.
J Clin Endocrinol Metab 2012 ; 97 : 1416-7.
- Leprechaunism (Donohue syndrome) : report of a case in a neonate.
Koklu E, Ariguloglu AE, Koklu S.
J Pediatr Endocr Metab 2014, 27:207-8
- Weber DR, Stanescu DE, Semple R, et al.
Continuous subcutaneous IGF-1 therapy via insulin pump in a patient with Donohue syndrome.
J Pediatr Endocrinol Metab 2014; 27:1237–41
- Termote JUM, Breur JMPJ, de Vroede MAMJ. Hypertrophic cardiomyopathy in Donohue syndrome. Cardiology in the Young 2016; 26: 815-8
- Kirkwood A, Stuart G, Harding L.
Donohue syndrome: a review of literature, case series, and anesthetic considerations.
Pediatr Anesth 2018; 28:23-7
Updated: December 2017