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Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

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In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
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Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
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Related Experiment Video

Updated: Apr 17, 2026

A Swine Model of Neonatal Asphyxia
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Hepatic dysfunction in asphyxiated neonates: prospective case-controlled study.

Mukesh Choudhary1, Deepak Sharma2, Dhanraj Dabi3

  • 1Department of Medical and Pediatrics Oncology, GCRI, Ahmedabad, Gujarat, India.

Clinical Medicine Insights. Pediatrics
|February 13, 2015
PubMed
Summary
This summary is machine-generated.

Elevated liver enzymes like AST and ALT in neonates within 24 hours, and LDH within 72 hours, can help identify perinatal asphyxia and its severity. These accessible tests aid in diagnosing hypoxic hepatitis in newborns when birth history is unclear.

Keywords:
birth asphyxiahepatic dysfunctionhypoxic ischemic encephalopathy

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Area of Science:

  • Neonatal Medicine
  • Pediatric Gastroenterology
  • Biochemistry

Background:

  • Perinatal asphyxia is a critical condition in newborns.
  • Hypoxic hepatitis can occur in neonates following birth asphyxia.
  • Assessing asphyxia severity and its impact on liver function is crucial for timely intervention.

Purpose of the Study:

  • To determine the incidence of hypoxic hepatitis in term neonates post-perinatal asphyxia.
  • To correlate liver enzyme levels with the severity of asphyxia, Apgar scores, and hypoxic-ischemic encephalopathy (HIE) grading.

Main Methods:

  • A prospective case-controlled study involving 70 asphyxiated neonates and 30 healthy controls.
  • Measurement of liver function tests (ALT, AST, ALP, LDH, total protein, albumin, bilirubin, INR) on postnatal days 1, 3, and 10.
  • Correlation of biochemical markers with Apgar scores and HIE grading.

Main Results:

  • 42.85% of asphyxiated neonates showed impaired liver function.
  • Significantly elevated ALT, AST, ALP, LDH, and INR, and lower total protein and albumin were observed in the asphyxiated group on day 1.
  • ALT and AST levels correlated with HIE severity, and LDH levels showed a rising trend with increasing HIE stages on day 3.

Conclusions:

  • AST and ALT at 24 hours, and LDH at 72 hours, are valuable tools for differentiating asphyxiated from non-asphyxiated neonates.
  • These enzyme tests aid in assessing the severity of perinatal asphyxia, especially when birth history is uncertain.
  • Findings support the use of accessible liver function tests for diagnosing and evaluating the impact of birth asphyxia in neonates.