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Related Concept Videos

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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Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
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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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Isolation of Neonatal Extrahepatic Cholangiocytes
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[Neonatal cholestasis].

F Lacaille1

  • 1Service de gastroentérologie-hépatologie-nutrition pédiatrique, hôpital universitaire Necker-Enfants-Malades, 149, rue de Sèvres, 75015 Paris, France.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie
|February 7, 2016
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Summary
This summary is machine-generated.

Cholestasis in infants presents with jaundice and abnormal stools. Prompt diagnosis of conditions like biliary atresia is crucial for timely intervention and preventing severe outcomes.

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Area of Science:

  • Pediatric Gastroenterology
  • Hepatology
  • Neonatal Medicine

Background:

  • Cholestasis in infants is characterized by impaired bile synthesis or secretion.
  • Key symptoms include jaundice, dark urine, and pale stools.
  • Early identification is critical due to potential severe consequences.

Purpose of the Study:

  • To describe diseases causing cholestasis in neonates and infants.
  • To outline diagnostic investigations and treatment strategies.
  • To emphasize the urgency of diagnosing biliary atresia.

Main Methods:

  • Review of diseases responsible for cholestasis in infants.
  • Description of diagnostic investigations.
  • Explanation of treatment protocols, including management of complications.

Main Results:

  • Urinary tract infection and biliary atresia are urgent diagnoses.
  • Permanently white stools strongly suggest biliary atresia.
  • Genetic causes of intrahepatic cholestasis require screening and potential surgery.

Conclusions:

  • Timely diagnosis and management of cholestasis, particularly biliary atresia, are essential.
  • Rapid consultation with hepatology units is vital for affected infants.
  • Effective management involves addressing underlying causes and non-specific complications.