Unveiling the hidden burden: challenges and spectrum of inborn errors of metabolism in LMICs

Sumreena Mansoor1, Zarmast Khan2,3

  • 1Department of Biochemistry, Shifa College of Medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan. sumreena.scm@stmu.edu.pk.

Pediatric Research
|October 1, 2025
PubMed

Insights

Inborn Errors of Metabolism (IEM) pose a significant health challenge in Pakistan, with scarce data hindering diagnosis and timely intervention. Improving diagnostic capacity and genetic testing is crucial to reduce child morbidity and mortality.

Area of Science:

  • Pediatric Medicine
  • Clinical Genetics
  • Metabolic Disorders

Background:

  • Inborn Errors of Metabolism (IEM) are a major cause of illness and death in children, especially in resource-limited areas.
  • Pakistan lacks comprehensive data on IEMs, leading to underdiagnosis and delayed treatment.

Purpose of the Study:

  • To investigate the spectrum and outcomes of IEMs in Pakistani children.
  • To highlight challenges in diagnosis and management in a low-middle-income country.

Main Methods:

  • Retrospective review of medical records for children with suspected IEMs.
  • Diagnosis based on biochemical tests and enzyme assays over a five-year period.

Main Results:

  • 64 patients diagnosed with various IEMs, including glycogen storage disorders, galactosemia, and congenital adrenal hyperplasia.
  • Delayed diagnosis, limited genetic testing, and financial constraints led to poor outcomes and high mortality.
  • One case misdiagnosed as drug overdose, six lacked sufficient data.

Conclusions:

  • Urgent need to enhance diagnostic capacity for IEMs in Pakistan.
  • Establishing genetic testing facilities, including whole-exome sequencing and gene panels, is critical.
  • Addressing diagnostic and financial barriers is essential to reduce IEM-related morbidity and mortality.
Abstract

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