Table of contents

Original research

• Original research: Serum ammonia use: unnecessary, frequent and costly (18 August, 2021)

  Elizabeth Aby, Andrew P J Olson, Nicholas Lim
• Original research: Clinical utility of small bowel ultrasound assessment of Crohn’s disease in adults: a systematic scoping review (23 June, 2021)

  Shellie Jean Radford, Chris Clarke, Bethany Shinkins, Paul Leighton, Stuart Taylor, Gordon Moran
• Original research: Is duodenal biopsy always necessary for the diagnosis of coeliac disease in adult patients with high anti-tissue transglutaminase (TTG) antibody titres? (25 June, 2021)

  Junaid Beig, Kamran Rostami, David T S Hayman, Summer Hassan, Stephen Gerred, Ravinder Ogra
• Original research: Nationwide analysis of incidence and predictors of 30-day readmissions in patients with decompensated cirrhosis (2 July, 2021)

  Mahesh Gajendran, Chandraprakash Umapathy, Abhilash Perisetti, Priyadarshini Loganathan, Alok Dwivedi, Luis A Alvarado, Marc J Zuckerman, Hemant Goyal, Sherif Elhanafi
• Original research: Increasing the low-risk threshold for patients with upper gastrointestinal bleeding during the COVID-19 pandemic: a prospective, multicentre feasibility study (25 August, 2021) Free

  Philip Dunne, Victoria Livie, Aaron McGowan, Wilson Siu, Sardar Chaudhary, Maximillian Groome, Perminder Phull, Andrew Fraser, Allan John Morris, Ian D Penman, Adrian J Stanley
• Original research: Endoscopically placed venting gastrostomy can be a safe and effective palliative intervention in benign and malignant gastrointestinal obstruction (20 September, 2021)

  Ross J Porter, Alastair W McKinlay, Emma L Metcalfe