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Idiopathic arterial calcification in infancy (IACI) is a rare, fatal condition causing cardiac failure in infants. This study reports three cases, highlighting myocardial ischemia and pulmonary hypertension as primary causes of death.
Area of Science:
- Cardiovascular Pathology
- Pediatric Cardiology
- Genetics
Background:
- Idiopathic arterial calcification in infancy (IACI) is a rare, severe genetic disorder.
- It leads to widespread arterial calcification and stenosis, primarily affecting the internal elastic lamina.
- Early diagnosis and understanding of IACI are crucial for managing affected infants.
Observation:
- Three fatal cases of IACI in infants aged 9 days to 3 months are presented.
- Clinical presentation included severe cardiac dysfunction.
- Histological examination revealed extensive arterial calcification.
Findings:
- Two infants died from myocardial ischemia secondary to coronary artery calcification.
- One infant succumbed to pulmonary hypertension due to calcification of pulmonary arteries.
- Autopsy findings confirmed widespread arterial calcification affecting major vessels.
Implications:
- This case series underscores the critical role of cardiac failure in IACI mortality.
- Understanding the specific mechanisms of cardiac compromise (ischemia vs. hypertension) is vital for prognosis.
- Further research into the genetic basis and potential therapeutic targets for IACI is warranted.
Abstract:
Three fatal cases of idiopathic arterial calcification in infancy are reported. The infants' ages ranged from 9 days to 3 months. Death was due to cardiac failure; in two cases caused by myocardial ischaemia, and in one by pulmonary hypertension. The histological findings are described and aetiology of the condition is discussed.