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Congenital hypothyroidism and pericardial effusion
G F Rondanini1, G de Panizza, A Bollati
1H San Raffaele, Department of Pediatrics, University of Milan, Italy.
Hormone Research
|January 1, 1991
Summary
Congenital hypothyroidism in infants is linked to a high prevalence of pericardial effusion, especially in severe fetal hormonal defects. This finding suggests cautious L-T4 therapy initiation to prevent cardiac issues.
Area of Science:
- Pediatric Endocrinology
- Neonatal Screening
- Cardiology
Background:
- Congenital hypothyroidism (CH) is a condition diagnosed in newborns.
- Neonatal screening programs facilitate early detection of CH.
- Pericardial effusion is a potential complication that requires investigation.
Purpose of the Study:
- To investigate the prevalence of pericardial effusion in infants with CH.
- To explore the relationship between the etiology of CH and the presence of pericardial effusion.
- To inform therapeutic strategies for CH management.
Main Methods:
- Echocardiography was used to detect pericardial effusion in infants diagnosed with CH via neonatal screening.
- Thyroid scintiscanning was employed to determine the etiology of hypothyroidism.
- Data analysis focused on correlating effusion presence with CH causes.
Main Results:
- A high prevalence of pericardial effusion was observed in infants with CH.
- The presence of effusion showed a relationship with the specific etiology of CH.
- Effusion was more frequent in severe forms of CH, such as agenesis or dyshormonogenesis, implying significant fetal hormonal defects.
Conclusions:
- Pericardial effusion is a common finding in infants with CH, even without other cardiac symptoms.
- The etiology of CH influences the likelihood of developing pericardial effusion.
- Initiating L-T4 replacement therapy with lower initial dosages is recommended to mitigate the risk of cardiac involvement.