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Examination for cardiac malformations at six weeks of age
Insights
Nearly 1% of infants aged six to eight weeks have murmurs, with almost half of those referred having structural cardiovascular malformations. This highlights the importance of routine cardiac examinations in early infancy.
Area of Science:
- Pediatric Cardiology
- Neonatal Health
- Clinical Examination
Background:
- Routine clinical examinations are crucial for early detection of infant health issues.
- Cardiac murmurs in infants can indicate underlying congenital heart disease.
- Understanding the prevalence of murmurs aids in refining diagnostic protocols.
Purpose of the Study:
- To determine the prevalence of heart murmurs in 6-8 week old infants.
- To assess the significance of these murmurs in identifying congenital heart disease.
- To evaluate the diagnostic yield of routine examinations.
Main Methods:
- Retrospective review of routine clinical examinations in infants aged 6-8 weeks.
- Cohort study conducted over two 12-month periods in Newcastle upon Tyne.
- Ascertainment of all diagnosed congenital heart defects within the study cohort.
Main Results:
- 83% of 7132 eligible infants were examined.
- Murmurs were detected in 47 of 5395 infants.
- Congenital heart disease was diagnosed in 11 of 25 referred infants, and 11 of 35 cases overall (31%).
Conclusions:
- Approximately 1 in 100 infants exhibit murmurs during routine 6-8 week examinations.
- Nearly half of infants with murmurs who were referred were found to have structural cardiovascular malformations.
- Routine auscultation at 6-8 weeks is a valuable tool for detecting significant cardiac abnormalities.
Aim:
To attempt to define the prevalence and significance of murmurs detected on routine clinical examination at six to eight weeks.
Methods:
A retrospective review of the results of routine clinical examination of a cohort of 6 to 8 week old babies resident in Newcastle upon Tyne, was carried out in two 12 month periods. All cardiac defects diagnosed in infancy in the same cohort were ascertained.
Results:
7132 babies were eligible for routine examination; 83% of these were examined. Murmurs were heard in 47 of 5395 babies and in 11 of 25 referred for evaluation congenital heart disease was found. The six to eight week examination led to diagnosis of 11 of 35 cases (31%) of congenital heart disease in the study population.
Conclusions:
Nearly one baby in 100 had a murmur on routine examination at six to eight weeks. Nearly half of those with murmurs who were referred had a structural cardiovascular malformation.