LETTER Screening

for bile acid diarrhoea in suspected irritable bowel syndrome We read the paper by Bajor et al with interest.1 The authors demonstrated that 18 % of patients who meet criteria for IBS may have underlying bile acid diarrhoea (BAD), using 23-seleno-25-homo-tauro-cholic acid (SeHCAT) scanning. This issue has been the subject of a previous system-atic review and meta-analysis2 which reported that up to 30 % of individuals with IBS had evidence of idiopathic BAD. However, many of the included studies were retrospective, and few used accepte