PURPOSE: To establish the swallowing profile of infants with congenital heart disease that were hospitalized at a children's hospital in the southern region of the country. CASE REPORT: Through a descriptive and transversal study, 26 infants, aged 0-8 months, who were diagnosed with congenital heart diseaseunderwent clinical speech evaluation. The use of mechanical ventilation (average of 59.6%) and nasoenteric feeding tube (average of 65.4%) before and after surgeryhad not influence on swallowing at the time of the evaluation (p<0.05). The oral posture at rest was sealed lips (69.2%) and an elevated tongue (69.2%). The most frequent oral posture at rest and during non-nutritive sucking was sealed lips and a high tongue. During the evaluation of non-nutritive sucking, thepresence of rhythm changes (30.8%) and absence of changes (23.1%) occurred. During the analysis of nutritive suction and swallow, we observed an absence of sealed lips (23.1%); tongue protrusion (11.5%); tremors of tongue, jaw, or both (15.4%); inappropriate functional mobility of the tongue (34.6%); incoordination of suction, respiration, and deglutition (38.5%); and a lack of pace (42.3%). The signs of stress (p=0.015) and respiratory changes (p=0.006) during nutritive sucking correlated significantly with the presence of altered swallowing. CONCLUSION: Respiratory changes and signs of stress were observed in infants during cardiac suction and we associated with a risk of developing swallowing disorders.