Is the Glasgow Blatchford score useful in the risk assessment of patients presenting with variceal haemorrhage?

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BackgroundThe Glasgow Blatchford score (GBS) is a pre-endoscopic risk assessment tool for patients presenting with upper gastrointestinal haemorrhage. There are few data regarding use in patients with variceal bleeding, who are generally accepted as being at high risk.AimThe aim of the study was to assess GBS in correctly identifying patients with subsequently proven variceal bleeding as ‘high risk’ and to compare GBS, admission and full Rockall scores in predicting clinical endpoints in this group.Patients and methodsData on consecutive patients with upper gastrointestinal haemorrhage presenting to four UK hospitals were collected. The GBS, admission and full Rockall scores were calculated and compared for the subgroup subsequently shown to have variceal bleeding. Area under the receiver operating curve (AUROC) was used to assess the scores ability to predict clinical endpoints within this variceal bleeding subgroup.ResultsA total of 1432 patients presented during the study period. Seventy-one (5%) had a final diagnosis of variceal bleeding. At presentation, none of this group had GBS less than 2, but six had an admission Rockall score of 0. In predicting need for blood transfusion, AUROC scores for GBS, full and admission Rockall scores were 0.68, 0.65 and 0.68, respectively. For endoscopic/surgical intervention the scores were 0.34, 0.51 and 0.55, respectively, and for predicting death the scores were 0.56, 0.72 and 0.70, respectively. None of these AUROC score comparisons were significant.ConclusionAt presentation, GBS correctly identifies patients with variceal bleeding as high risk and appears superior to the admission Rockall score. However, GBS and both Rockall scores are poor at predicting clinical outcome within this group.

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