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Background and AimsEASL/AASLD hepatic encephalopathy (HE) guidelines proposed the alternative use of the term ‘Covert HE’ combining minimal HE (mHE) and Grade 1 HE into a single entity. However, longitudinal data to indicate that these are indeed a single entity are lacking. The aims of this study were to determine whether the occurrence of complications of cirrhosis requiring hospital admission and mortality were similar in these sub-groups of patients.MethodsClinically-stable cirrhotic patients (n = 106) with no previous history of ‘Overt HE’ were included over a 2-year period and classified as having no HE (n = 23), mHE (n = 39) or Grade 1 HE (n = 44). Standard biochemistry, venous ammonia, bacterial DNA and neutrophil function were measured at inclusion and the patients were followed for a mean of 230±95 days.ResultsPatients with Grade 1 HE had significantly more complications requiring hospitalisation (infection 9/18/34%; HE 4/8/18%; other 13/10/11%; P = 0.02) and significantly greater mortality (4/5/20%; P = 0.04) compared to patients with no HE or mHE respectively. Patients with mHE and grade 1 HE had similar ammonia levels, but higher than the no HE group (P<0.001). MELD score was similar between groups but Grade 1 HE patients had increased frequency of bacterial translocation (P = 0.06) and neutrophil spontaneous respiratory burst (P = 0.02) compared to patients with mHE.ConclusionsThe results of this study show for the first time that ‘Covert HE’ is a heterogeneous entity with significantly greater hospitalisations and mortality in the Grade 1 HE patients compared with mHE. Further prospective longer-term studies are required before EASL/AASLD guidance is fully implemented.

Objective: The aim of this study was to evaluate the effects of an oligoantigenic and histamine-free diet on patients affected with chronic idiopathic urticaria (CIU). Design: Ten patients with chronic idiopathic urticaria were prescribed an oligoantigenic and histamine-free diet for 21 days, followed by serial and controlled reintroduction of foods during a further 70 days. Modi®cation in clinical illness as well as histamine plasma levels, post-heparin plasma diamine oxidase (DAO) and intestinal permeability were evaluated. Results: The oligoantigenic and histamine-free diet induced a signi®cant improvement of symptoms (P`0.05). Moreover, CIU patients on free diet showed higher histamine plasma levels (P`0.05 vs post-diet and vs controls) that fell to control levels during the oligoantigenic and histamine-free diet. Post-heparin plasma diamine oxidase values were slightly reduced and were unchanged during the diet as well as intestinal permeability, which was always normal in all patients. Conclusions: These data suggest that histamine plays a major role in chronic idiopathic urticaria. The ®nding of normal intestinal permeability suggests that a morphological damage of intestinal mucosa should be excluded in these patients. However, the presence of low levels of post-heparin plasma diamine oxidase may indicate a subclinical impairment of small bowel enterocyte function that could induce a higher sensitivity to histaminerich or histamine-producing food. Descriptors: chronic idiopathic urticaria; diet; histamine; diamine oxidase; intestinal permeability

Histoacryl glue is used increasingly for the treatment of gastric and ectopic varices, and there is experience in its use for oesophageal varices. It is an effective treatment, yet numerous reports of complications have accumulated. This review of the literature describes the technique, explores circulatory and vascular consideration unique to portal hypertension and categorises the complications into: “Embolisation”, “local venous thrombosis”, “fistulisation and extravascular injection”, “ulceration, erosion and extrusion”, and “nidus of infection”. A case is then made for standardisation of the technique and the consent process.

SUMMARY BackgroundIntractable pruritus is a major problem for some patients with cholestasis. Albumin dialysis has been shown to ameliorate pruritus, but long-term outcome data are limited.

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Our data suggest that neither single nor repeated determinations of GEC and MEGX are superior to CTP and MELD scores in predicting prognosis of patients with viral cirrhosis.