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Citrullinemia type I

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Disease definition

Citrullinemia type I is a rare autosomal recessive urea cycle defect characterized biologically by hyperammonemia and clinically by progressive lethargy, poor feeding and vomiting in the neonatal form (Acute neonatal citrullinemia type I) and by variable hyperammonemia in the later-onset form (Adult-onset citrullinemia type I).

ORPHA:247525

Classification level: Disorder

Synonym(s):
  • ASS deficiency
  • Argininosuccinate synthase deficiency
  • Argininosuccinate synthetase deficiency
  • Argininosuccinic acid synthase deficiency
  • Argininosuccinic acid synthetase deficiency
  • CTLN1
  • Citrullinemia type 1
  • Classic citrullinemia

Source: PubMed ID 31469252

Prevalence: 1-9 / 100 000

Inheritance: Autosomal recessive

Age of onset: All ages

ICD-10: E72.2

ICD-11: 5C50.A3

OMIM: 215700

UMLS: C4721769

GARD: 6114

MedDRA: 10058298

A summary on this disease is available in Français, Español, Deutsch, Italiano, Nederlands Ελληνικά
Detailed information

Logo ERN: produced/endorsed by ERN(s) Logo FSMR: produced/endorsed by FSMR(s)

Guidelines
Emergency guidelines
Français (2023.pdf) - Orphanet Urgences
English (2012.pdf) - Brit Inher Metab Dis Group
Anesthesia guidelines
English (2020) - Orphananesthesia
Español (2020) - Orphananesthesia
Čeština (2020) - Orphananesthesia
Clinical practice guidelines
English (2019) - Orphanet J Rare Dis
Disease review articles
Clinical genetics review
English (2022) - GeneReviews
The documents contained in this website are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.