Delayed sternal ossification in congenital heart disease: incidence using computed tomography

Area of Science:

• Pediatric Cardiology
• Medical Imaging
• Developmental Biology

Background:

• Congenital heart disease (CHD) is linked to sternal abnormalities, but delayed sternal ossification is less understood.
• Existing literature on this topic is limited and primarily based on radiographic studies.

Purpose of the Study:

• To quantitatively assess delayed sternal ossification in children with CHD using computed tomography (CT).
• To compare the prevalence of delayed sternal ossification in CHD patients versus a control group.

Main Methods:

• Chest CT scans of children under 3 years with complex CHD and controls were reviewed.
• Demographics, CHD type, and sternal ossification patterns (manubrial and sternal segments) were analyzed.
• Statistical analysis compared ossification delays between CHD patients and controls, with a significance threshold of 0.05.

Main Results:

• Delayed sternal ossification was found in 11.9% of CHD patients, significantly higher than the 1.6% in controls (P=0.002).
• Cyanotic CHD was strongly associated with delayed ossification (P<0.001), unlike acyanotic CHD (P=0.37).
• Observed ossification patterns varied, including manubrium only, manubrium and first segment, and more extensive delays.

Conclusions:

• Delayed sternal ossification is a notable finding in children with CHD, particularly those with cyanotic types.
• The presence of delayed sternal ossification in CHD patients does not necessitate additional diagnostic work-up.