Table 5.

Severity of congenital heart disease in asymptomatic newborns with cardiac murmur

Sources	Classification of CHD severity	CHD number (%)
Al-Ammouri et al. [33]	Total CHD	68
	Critical: hypoplastic left heart syndrome, aortic stenosis	4 (5.9)
	Significant: CHD proved to be symptomatic and/or eventually required intervention during infancy or childhood	18 (26.5)
	Others	46 (67.6)
Minocha et al. [26]	Total CHD	188
	Critical: CHD requiring immediate intervention	2 (1.1)
	Major: CHD requiring intervention within 12 months of life	26 (13.8)
	Minor: CHD expected to resolve spontaneously or unlikely to require intervention	160 (85.1)
Fenster et al. [34]	Total CHD	11
	CHD triggered a change in management before hospital discharge	3 (27.3)
	CHD necessitating outpatient cardiology follow-up	8 (72.7)

Abbreviations: CHD, congenital heart disease