1. Fontan circulation causes early, severe liver damage. Should we offer patients a tailored strategy?
- Author
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Agnoletti G, Ferraro G, Bordese R, Marini D, Gala S, Bergamasco L, Ferroni F, Calvo PL, Barletti C, Cisarò F, Longo F, and Pace Napoleone C
- Subjects
- Adolescent, Child, Elasticity Imaging Techniques, Female, Humans, Male, Risk Factors, Ultrasonography, Fontan Procedure adverse effects, Liver Diseases diagnostic imaging, Liver Diseases etiology, Severity of Illness Index
- Abstract
Background: In patients with Fontan circulation, the liver is profoundly affected by chronic venous stasis. Little is known about early hepatic changes in this population., Methods: We performed echocardiography, abdominal ultrasound, liver elastography, cardiac catheterization, esophago-gastro-duodenoscopy and calculated MELD-XI score in 64 Fontan patients (69% minors), at an interval of 1-15years since Fontan., Results: Cardiac output remained stable in the first 5years after Fontan, then significantly decreased (r=-0.45, p(r=0)=0.003). NYHA class significantly increased after Fontan. Patients in NYHA class II/III (n=21, 14 minors) had significantly higher hepatic pressures, but normal ventricular function and pulmonary vascular resistances (PVR). Patients with pulmonary arterial pressure (PAP) ≥15mmHg (n=12, 6 minors) and those with PVR≥2WU*m(2) (n=27, 25 minors), had higher hepatic pressures (p<0.0001), a higher incidence of liver collaterals and/or esophageal varices (p<0.0001) and splenomegaly (p<0.02). Liver stiffness (LS) was elevated in most patients (median, 25th-75th percentile:17.3KPa, 14.1-21.4). It rapidly increased during the first 5-years after Fontan, compared to the following 5-years (from 12.2KPa, 9.8-14.1 to 17.5KPa, 14.3-24.5, p=0.007), then remained stable (19.1KPa, 16.9-22.6, p=0.60). MELD-XI score increased linearly with the time interval since Fontan (r=0.31, p(r=0)=0.01). For patients above 12years we found a linear correlation between LS and MELD-XI score in the 6-15years period after Fontan (r=0.40. p(r=0)=0.04). The overall incidence of established liver cirrhosis was 22%., Conclusions: This is the largest study showing that Fontan circulation prompts early, progressive and eventually irreversible liver damage. Precautions should be taken immediately after Fontan, to protect this fragile population., (Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2016
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