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Hepatic Encephalopathy in Patients with Transjugular Intrahepatic Portosystemic Shunt (TIPS)

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Hepatic Encephalopathy

Part of the book series: Clinical Gastroenterology ((CG))

Abstract

The following presentation discusses the present knowledge on transjugular intrahepatic portosystemic shunt (TIPS)-induced HE with respect to quality of assessment, incidence, prediction, prevention, and treatment. Unfortunately, most studies used questionable methods and investigators were unblinded necessitating critical interpretation of the data. In numerous longitudinal cohort studies, a major bias may be generated by the fact that pre-TIPS HE has been assessed retrospectively by the patient’s recent history and compared with the prospective evaluation after TIPS. With respect to randomized trials, investigators were unblinded which may have influenced the result disfavouring the TIPS groups. With this in mind, the data published may rather be used as a qualitative orientation confirming a negative effect of the TIPS on HE, but they may not allow to accurately quantify its risk.

Many predictors of post-TIPS HE have been published. Increased age, elevated bilirubin, a low sodium concentration, decreased mean arterial pressure (<87 mmHg), elevated MELD score (above 15), and a critical flicker frequency (<37 Hz) may be of major relevance. In patients with a risk of HE this may be prevented by the use of smaller shunts with a lower reduction of the pressure gradient. If HE occurs, medical treatment is effective in most patients and shunt reduction is an option for those with debilitating chronic HE.

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Correspondence to Martin Rössle MD .

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Rössle, M., Euringer, W. (2012). Hepatic Encephalopathy in Patients with Transjugular Intrahepatic Portosystemic Shunt (TIPS). In: Mullen, K., Prakash, R. (eds) Hepatic Encephalopathy. Clinical Gastroenterology. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-61779-836-8_17

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  • DOI: https://doi.org/10.1007/978-1-61779-836-8_17

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