Tetralogy of Fallot is a heart defect present at birth, showing the symptoms of bluish colour to the skin when the babies cry or during feeding, with having the difficulty in breathing. They may also be having loss of consciousness. In most of the cases the infants are smaller than expected for age.

Related Journals: Journal of Congenital Anomalies; Journal of Congenital Heart Disease; Journal of Pediatrics and Congenital Disorders; The New England Journal of Medicine