Huma Arshad Cheema, Hassan Suleman Malik, Arit Parkash, Zafar Fayyaz.
Spectrum of Inherited Metabolic Disorders in Pakistani Children Presenting at a Tertiary Care Centre.
J Coll Physicians Surg Pak Jan ;26(6):498-502.

Objective: To determine the frequency, presentation and outcome of various inherited metabolic diseases in children presenting in a tertiary care hospital, Lahore, Pakistan. Study Design: An observational study. Place and Duration of Study: Gastroenterology, Hepatology and Nutrition Department of The Children Hospital and Institute of Child Health, Lahore, from January 2011 to October 2014. Methodology: All children aged < 14 years with high suspicion of a metabolic disorder were inducted. Routine and radiological investigation were carried out at the study place. Comprehensive diagnostic testing of particular metabolic disorder was sent abroad. Those with a specific metabolic disorder were included in the study while those with normal metabolic work-up were excluded. All data was collected on preformed proforma. Results: A total of 239 patients were enrolled. Nineteen different types of inherited metabolic disorders were diagnosed in 180 patients; age ranged from 8 days to 14 years. Consanguinity was positive in 175 (97%) among the parents of the affected children, with previously affected siblings in 64 (35.5%). The most frequent disorders were inherited disorders of carbohydrate metabolism (92, 51%), lipid storage disease (59, 32.7%), organic acidemia and energy defects (18, 10%), amino acid disorder (6, 3.3%), and miscellaneous (4, 2.2%). Fifty-eight (32.2%) presented with acute metabolic crisis, 28 (15.5%) patients presented with early onset liver failure, and 24 (13.3%) with mental retardation. Out of these, 16 (8.8%) expired. Conclusion: Glycogen storage disorders being the commonest followed by Gaucher disease and Galactosemia. The associated complications resulted in high morbidity and mortality.

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