Budd-Chiari Syndrome Management: Timing of Treatment Is an Open IssueTo the Editor:I read with interest the long-term multicenter experience on Budd-Chiari syndrome (BCS) step-wise management published in HEPATOLOGY.1 As stated before, medical therapy is suggested as the first-line treatment, angioplasty/stenting the second-line, transjugular intrahepatic portosystemic shunt (TIPS) the further step, and liver transplantation (LT) the last chance. 2 Step-wise management suggests moving forward when no response to therapy appears. However, definition for response to therapy was not stated, 2,3 and a proposal of such a definition needs validation. 4 Interestingly, 20 of the 69 who received only medical therapy died, a high rate considering the availability of further invasive treatments. The remaining 88 underwent invasive treatment, mostly TIPS, 20 LT, and only 3 surgical shunt. Overall survival was 74% at 5 years. 1 TIPS is the most used treatment for BCS 2,3 because it is effective also in the case of thrombosis extension to the portal vein tree.5-7 However, timing for TIPS was not stated. Shunt surgery was used in a strict minority of patients in this study.1 Others report surgery as the main indication for BCS, albeit with not uniform survival rates.8 However, given TIPS efficacy, [5][6][7] surgical shunts should be limited to cases not suitable for TIPS.
9Because of the rarity of BCS, management guidelines come from expert opinion, are empirical, and are not evidence based. Given that benefit of treatments for BCS is not under debate, I wonder if anticipating invasive treatments, before no response to medical therapy appears, could decrease hepatic fibrosis development, disease progression, and finally improve outcome.ANDREA MANCUSO, M.D. Relating Serum GGT to ALT Activity Enhances Its Predictability on Treatment Outcome in Chronic Hepatitis C
To the Editor:We read the article by Everhart and Wright 1 with great interest, noting serum gamma glutamyl transferase (GGT) activity both as a predictor of therapy outcome and as a prognostic indicator for disease outcome in chronic hepatitis C patients, based on data raised at the end of a 7-year observation period. Data were obtained from patients who were enrolled in the HALT-C study, meaning these patients had treatment before and were experiencing an advanced stage of liver disease. Everhart and Wright were also able to show a combined effect of serum GGT activity and IL28B rs12979860 genotype. They described that GGT activity adds particularly to predictability in carriers of the nonfavorable T allele featured by low virological response rates when compared to favorable CC homozygotes with high virological response rates.