What is the prognosis (outlook) following surgery to repair truncus arteriosus?

The prognosis is good for most children after surgery to repair truncus arteriosus. More than 90% of children survive the surgery. Your child must continue to obtain follow-up care from a cardiologist for the rest of his or her life. Some children have to restrict their physical activities, and some might not be able to participate in competitive sports. Children who have had surgery for truncus arteriosus will need to take antibiotics before undergoing dental procedures or surgery in order to prevent endocarditis, an infection of the lining of the heart.

Complications may arise later in life, even when the heart defects have been surgically repaired. These complications may include abnormal heart rhythms (arrhythmias), pulmonary hypertension (high blood pressure in the lungs), and leaky heart valves. These complications may produce symptoms such as dizziness, shortness of breath, and heart palpitations (rapid fluttering heartbeats).

Last reviewed by a Cleveland Clinic medical professional on 01/29/2011.

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