Document Detail


Glutaric aciduria type II: observations in seven patients with neonatal- and late-onset disease.
MedLine Citation:
PMID:  10785889     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The clinical, biochemical, and neuroradiologic findings and clinical follow-up of seven patients with glutaric aciduria type II are reported. Three phenotypes of the disease are encountered: neonatal-onset form with congenital anomalies (two patients) or without congenital anomalies (three patients) and late-onset form (two patients). The neonatal-onset form presents as an overwhelming illness, with severe hypoglycemia and metabolic acidosis leading to rapid death. Frequently it is associated with perinatal energy deprivation, a neonate with low birth weight and prematurity. The late-onset form presents with intermittent episodes of vomiting, hypoglycemia, and acidosis especially after meals rich in fat and/or proteins. All parents are consanguineous and have a first- or second-degree relationship. Initially, in the two phenotypes with neonatal onset and during crisis in the late-onset phenotype, routine laboratory evaluation showed severe metabolic acidosis, with an increased anion gap, hypoglycemia without ketonuria, and disturbed liver function tests. In the majority of patients with neonatal-onset forms, the kidneys, liver, and at times the spleen are enlarged with an increased echogenic pattern; however, no hepatic or renal cysts are detected. Cardiomegaly is observed in most patients. The diagnosis can be easily and rapidly reached through tandem mass spectrometry study of the blood and can further be confirmed by gas chromatography/mass spectrometry analysis of the urine organic acids. In this report, the magnetic resonance imaging/computed tomography brain studies showed brain atrophy, white matter disease, and in one patient, fluid-filled cavities in the periventricular area and putamina. Fluorine-18-labeled 2-fluoro-2-deoxyglucose positron emission tomographic (FDG PET) brain studies in two patients with late-onset disease showed slightly decreased activity in the cerebral cortex in one and in the caudate nuclei in the other. Brain FDG PET scan and magnetic resonance spectroscopy were normal in one patient with neonatal-onset disease. All patients were treated with a diet low in fat and protein, oral riboflavin, and carnitine. The results were promising for the late-onset disease. Intravenous carnitine gave rewarding results in one patient with neonatal-onset disease.
Authors:
M A al-Essa; M S Rashed; S M Bakheet; Z J Patay; P T Ozand
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Journal of perinatology : official journal of the California Perinatal Association     Volume:  20     ISSN:  0743-8346     ISO Abbreviation:  J Perinatol     Publication Date:  2000 Mar 
Date Detail:
Created Date:  2000-06-09     Completed Date:  2000-06-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8501884     Medline TA:  J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  120-8     Citation Subset:  IM    
Affiliation:
Department of Biological and Medical Research, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.
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MeSH Terms
Descriptor/Qualifier:
Acidosis* / diagnosis,  epidemiology,  therapy
Age of Onset
Brain / pathology,  radionuclide imaging
Carnitine / analogs & derivatives,  cerebrospinal fluid,  therapeutic use
Child
Consanguinity
Female
Glutarates / urine*
Humans
Infant
Infant, Newborn
Magnetic Resonance Imaging
Male
Mass Spectrometry
Metabolism, Inborn Errors / diagnosis,  epidemiology,  therapy,  urine*
Tomography, Emission-Computed
Chemical
Reg. No./Substance:
0/Glutarates; 0/acylcarnitine; 110-94-1/glutaric acid; 541-15-1/Carnitine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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