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Updated: Aug 12, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
[Sudden infant death syndrome: respiratory causes]
Sudden Infant Death Syndrome (SIDS) remains a mystery, but subtle physiological changes may precede death. A combination of factors during a vulnerable period likely causes SIDS in some infants.
Area of Science:
- Pediatrics
- Physiology
- Forensic Pathology
Context:
- Sudden Infant Death Syndrome (SIDS) affects 1 in 500 infants aged 1-12 months.
- SIDS is often unexplained post-autopsy, posing a diagnostic enigma.
- Epidemiologic, pathologic, and physiologic studies suggest subtle pre-death changes in affected infants.
Purpose:
- To review and interpret current data on SIDS.
- To explore the sleep apnea-hypoventilation-induced chronic hypoxemia hypothesis in SIDS.
- To discuss preventive strategies for high-risk infants.
Summary:
- SIDS is not attributed to a single cause.
- A confluence of adverse circumstances during infant vulnerability may lead to SIDS.
- Subtle physiological alterations may occur before SIDS death.
Impact:
- Provides a framework for understanding SIDS etiology.
- Highlights the multifactorial nature of SIDS.
- Informs preventive measures for at-risk infant populations.
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