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Perinatal calcium metabolism: physiology and pathophysiology
Stephanie C Hsu1, Michael A Levine
1Department of Pediatrics, The John Hopkins University, Baltimore, MD 21287, USA.
Seminars in Neonatology : SN
|March 12, 2004
Summary
Neonatal mineral homeostasis disturbances, including calcium issues, are common, especially in premature or ICU infants. Understanding neonatal calcium metabolism is key for diagnosing and managing these conditions.
Area of Science:
- Neonatal Medicine
- Pediatric Endocrinology
- Biochemistry
Background:
- Mineral homeostasis disturbances are frequent in neonates, particularly premature or ICU-admitted infants.
- These issues often stem from exaggerated physiological transitions from intrauterine to extrauterine life.
- Genetic defects, intrauterine pathologies, birth stress, or immaturity can also cause calcium imbalances.
Purpose of the Study:
- To provide an overview of calcium metabolism during the neonatal transition.
- To discuss common causes of neonatal hypocalcemia and hypercalcemia.
- To highlight the importance of specific knowledge for diagnosis and management.
Main Methods:
- Review of neonatal mineral metabolism and calcium physiology.
- Discussion of etiological factors for hypocalcemia and hypercalcemia.
- Emphasis on the unique biochemical and clinical features in newborns.
Main Results:
- Neonatal calcium disturbances are common and multifactorial.
- Causes range from physiological adaptation to genetic defects and pathological conditions.
- Specific knowledge of neonatal mineral metabolism is crucial.
Conclusions:
- Effective diagnosis and management of neonatal hypocalcemia and hypercalcemia rely on understanding perinatal mineral physiology.
- The chapter emphasizes the unique aspects of newborn mineral metabolism.
- Awareness of common causes aids in clinical decision-making for affected infants.