Abstract:
PURPOSE:Bile acid malabsorption (BAM) is a common cause of diarrhoea in Crohn's disease (CD) patients with ileal resection. BAM is usually diagnosed by selenium-labelled homotaurocholic acid test (75SeHCAT) but its availability is limited. Consequently, a large proportion of patients either remain undiagnosed or subject to empirical therapy. There is a paucity of studies examining the correlation between length of ileal resection and severity of BAM, which will be of use to clinicians with no recourse to diagnostic testing for BAM. METHODS:We tested the correlation between length of resected ileum and percentage retention on 75SeHCAT of all CD patients with a prior surgical resection who underwent 75SeHCAT testing. Response to treatment with bile salt sequestrant and 75SeHCAT retention values was tested using Fisher's exact test. RESULTS:A total of 91 patients were identified with a median age of 47 (IQR 21-80). The median length of resected ileum was 24 cm (range 15-165 cm) with a median of 1 resection (range 1-4). Overall, 88 patients (97%) had 75SeHCAT retention values of < 10% and 85 (93%) had retention of < 5%. There was a modest correlation between 75SeHCAT retention and length of ileal resection (Spearman's rho - 0.392, P = 0.0001). Data on response to treatment was available for 57 (63%) patients, of who 38 (67%) responded to bile salt sequestrant. There was no difference in 75SeHCAT retention values between responders and non-responders. CONCLUSIONS:There was a modest correlation between length of ileal resection and severity of BAM as defined by 75SeHCAT retention values. Response to bile salt sequestrant therapy was not dependent on 75SeHCAT retention values.
journal_name
Int J Colorectal Disjournal_title
International journal of colorectal diseaseauthors
Skouras T,Dodd S,Prasad Y,Rassam J,Morley N,Subramanian Sdoi
10.1007/s00384-018-3144-1subject
Has Abstractpub_date
2019-01-01 00:00:00pages
185-188issue
1eissn
0179-1958issn
1432-1262pii
10.1007/s00384-018-3144-1journal_volume
34pub_type
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