[Understanding and diagnosis of complex congenital cardiopathies. II].

Once the rules for understanding of complex congenital heart disease were reviewed in part I, the purpose in this second part is show how the clinical diagnosis is made. The first requirement is to separate patients into two groups: neonates and infants. A critical route based on five clue data: patient's age, presence or absence of cyanosis, presence or absence of myocardial failure, pulmonary blood flow estimated on x chest film, and presence of either right or left ventricular hypertrophy or both in ECG, is matched. This approach is helpful to reduce possibilities to diagnosis in congenital heart disease.