scholarly journals Favorable Long-Term Outcome Following Severe Neonatal Hyperammonemic Coma in a Patient with Argininosuccinate Synthetase Deficiency

Author(s):  
Isabelle De Bie ◽  
Emmanuelle Lemyre ◽  
Marie Lambert
2020 ◽  
Vol 54 (4) ◽  
Author(s):  
Michelle E. Abadingo ◽  
Mary Ann R. Abacan ◽  
Mary Anne D. Chiong ◽  
Leniza G. De Castro-Hamoy

Objective. The study is a retrospective review which provides preliminary data on the correlation between biochemical profiles and initial clinical manifestation of patients diagnosed to have argininosuccinate synthetase deficiency (ASSD) and argininosuccinate lyase deficiency (ASLD) detected by expanded newborn screening (ENBS).Methods. This is a study of five distal UCD patients initially detected by elevated citrulline on ENBS. Medical charts of the patients were reviewed. The initial clinical manifestations of the patients were correlated with results of biochemical tests.Results. There were four cases of ASLD and one case of ASSD reviewed in this study. All cases of ASLD were confirmed by the presence of argininosuccinic acid (ASA) in the urine metabolic screen (UMS). The plasma citrulline level of the ASSD patient is significantly elevated as compared to the ASLD patients (2,690 µmol/L; NV: 10-45 µmol/L). The ASSD patient and one ASLD patient were symptomatic within the first six days of life. Both presented with significantly elevated plasma ammonia, citrulline and glutamine levels. Three ASLD patients were asymptomatic on initial screening.Conclusion. ENBS has shown importance in the early detection and management of ASSD and ASLD. Early initiation of management may prevent hyperammonemic crises. Long term outcome studies are needed to look into the correlation of neurodevelopmental outcome with lifelong accumulation of citrulline and glutamine in ASSD and ASA in ASLD.


2001 ◽  
Vol 120 (5) ◽  
pp. A624-A624 ◽  
Author(s):  
J ARTS ◽  
M ZEEGERS ◽  
G DHAENS ◽  
G VANASSCHE ◽  
M HIELE ◽  
...  

2006 ◽  
Vol 175 (4S) ◽  
pp. 490-490
Author(s):  
Stefan Zastrow ◽  
Sven Oehlschläger ◽  
Oliver W. Hakenberg ◽  
Steffen Leike ◽  
Manfred P. Wirth

2006 ◽  
Vol 175 (4S) ◽  
pp. 420-421
Author(s):  
Gemma Viola Fantini ◽  
Andrew Nisbet ◽  
Pejman Mortarjem ◽  
Claudia Panzer ◽  
Ricardo Munarriz

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