Truncus arteriosus (TA) is defined as a congenital cardiovascular malformation in which one great artery arises from the base of the heart and gives origin to the pulmonary and systemic arteries. TA patients who become pregnant have high morbidity and mortality rates because physiologic changes during pregnancy can worsen the cardiopulmonary balance causing cardiopulmonary decompensation. In this case report we report a successful general anesthesia in a truncus arteriosus patient with severe pulmonary hypertension (Eisenmenger syndrome) who underwent a full-term pregnancy delivery monitored by intraoperative transesophageal echocardiography, a new technique to assist physicians in dealing with patients with hemodynamic instability during both cardiac and noncardiac surgery.
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