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Symptoms
By Mayo Clinic staff
Complete atrioventricular canal defect
Signs and symptoms of complete atrioventricular canal defect usually develop in the first several weeks of life. They include:
- Difficulty breathing (dyspnea)
- Lack of appetite
- Poor weight gain
- Bluish discoloration of the lips and skin (cyanosis)
If your baby has complete atrioventricular canal defect, he or she may also develop signs and symptoms of congestive heart failure, including:
- Fatigue and weakness
- Persistent cough or wheezing with white or pink blood-tinged phlegm
- Swelling (edema) in the legs, ankles and feet
- Swelling of the abdomen (ascites)
- Sudden weight gain from fluid retention
- Decreased alertness
- Irregular or rapid heartbeat
Partial atrioventricular canal defect
Signs and symptoms of a partial atrioventricular canal defect may not appear until later in life, often in the 20s and 30s. When they do become noticeable, signs and symptoms are usually related to complications that develop as a result of the defect, such as abnormal heart rhythm (arrhythmia), congestive heart failure and high blood pressure in the lungs (pulmonary hypertension).
