Abstract
Progressive hepatic fibrosis is common after the Fontan operation, but little is known about its onset. We sought to determine whether hepatic abnormalities before the Fontan operation, and whether further abnormalities can be identified soon afterward. Patients undergoing the Fontan operation at our institution were prospectively enrolled and underwent hepatic ultrasound with Doppler and serum testing immediately before and 3 to 6 months after the operation. Thirty patients were enrolled at a median age of 3.1 years (range, 2.2 to 8.1 years). Extracardiac Fontan was performed in 67%. Three patients (10%) had abnormal hepatic echotexture before the operation. At the post-Fontan study, mean liver length increased (9.9 versus 10.9 cm; p < 0.0001), and mean hepatic artery end-diastolic velocity decreased (18.8 versus 14.5 cm/s; p = 0.03). One patient showed new, abnormal hepatic echotexture after surgery. Mean aspartate aminotransferase (56.7 versus 60.7 U/L; p = 0.04), alanine transaminase (18.9 versus 33.9 U/L; p = 0.0002), and γ-glutamyl transferase (18.7 versus 46.1 U/L; p = 0.002) increased at the post-Fontan assessment compared with the preoperative values. By linear regression, hospital length of stay and duration with ches...Continue Reading
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