FREQUENCY, THE CLINICAL AND BIOCHEMICAL FEATURES OF ACUTE DECOMPENSATED EPISODE WITH BETAKETOTHIOLASE DEFICIENCY IN VIETNAM NATIONAL CHILDREN'S HOSPITAL

Tran Thi Thu1
1 Thai Binh Pediatric Hospital

Main Article Content

Abstract

Objective: Frequency, the clinical and biochemical features acute decompensated episode with betaketothiolase deficiency.
Subject and Method: A Descriptive study, 75 childrens beta-ketothiolase deficiency were diagnosed,
treated and monitored in the Vietnam National Children’s Hospital from January 2015 to June 2021.
Results: 92% of patients had acute decompensated episode, the age of onset was mainly less than
12 months, on average, one patient had 1.5 ± 1.27 acute attacks. Common clinical features are
respiratory tract inflammation such as fever (91.3%), cough (53.6%), vomiting (73.9%) and then
go into mental disorder (97,1%). Biochemical characteristics: 97,1% of patients had ketonuria
during acute decompensation episodes, the majority of patients with metabolic acidosis accounted
for 88,4%. Plasma acyl-carnitin profile revealed increased C5: 1 accounted for 82.6%, increased
C5: OH accounted for 86.9%. Urinary organic acids profile revealed mainly increased by 2M3HB,
accounting for 79,7%.
Conclusion: The frequency of acute decompensation accounted for 92%. Most patients had
symptoms of respiratory infection such as fever, cough, then coma, plasma acyl-carnitin profile
revealed increased C5: 1 and C5: OH. Urinary organic acids profile revealed mainly increased by
2M3HB.

Article Details

References

[1] Khanh NN, Study on phenotype, genotype,
outcome of Beta-ketothiolase dificiency in
Viet Nam, Doctoral Thesis, Ha Noi Medical
University, 2017.
[2] Khanh NN, Dung VC, Thao BP et al., The
development of physically and mentally of betaketothiolase dificiency in National Children’s
Hospital for 10 years. The Journal of Pediatrics,
2015, 8(2), 54-57.
[3] Nhan NT, Beta-ketothiolase dificiency. Inherited
Metabolic Disorders in Pediatric. Medical
Publsing House, Ha Noi, 2020, 307-313
[4] FuKao T, Beta- keto dificiency. Ophanet
encyclopedia, 2001, 1-11.
[5] Hampe MH, Panaskar SN, Yadav AA et al.,
Gaschromatography/mass spectrometry-based
urine metabolome study in children for inborn
errors of metabolism: An Indian experience.
Clinical Biochemistry, 2017, 50(3), 121-126.
[6] Fukao T, Sasai H, Aoyama Y et al., Recent
advances in understanding beta-ketothiolase
(mitochondrial acetoacetyl-CoA thiolase, T2)
deficiency. Journal of Human Genetics, 2019,
64(2), 99-111.
[7] Fukao T, Scriver CR, Kondo N et al., The
clinical phenotype and outcome of mitochondrial
acetoacetyl-CoA thiolase deficiency (betaketothiolase or T2 deficiency) in 26 enzymatically
proved and mutation-defined patients. Molecular
Genetics and Metabolism, 2001, 72(2), 109-114.