<sup>75sup>SeHCAT scan in bile acid malabsorption in chronic diarrhea
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- 作者：L.M. Mena Bares<sup>asup><sup> ; sup><sup>lmmeba@hotmail.comsup> ; E. Carmona Asenjo<sup>asup> ; M.V. Garcí ; a Sá ; nchez<sup>bsup> ; E. Moreno Ortega<sup>asup> ; F.R. Maza Muret<sup>asup> ; M.V. Guiote Moreno<sup>asup> ; A.M. Santos Bueno<sup>asup> ; E. Iglesias Flores<sup>bsup> ; J.M. Bení ; tez Cantero<sup>bsup> ; J.A. Vallejo Casas<sup>asup>
- 关键词：75SeHCAT ; Chronic diarrhoea ; Bile acid malabsorption ; Diagnostic algorithm ; Bile acid sequestrants
- 刊名：Revista Española de Medicina Nuclear e Imagen Molecular (English Edition)
- 出版年：2017
- 出版时间：January-February 2017
- 年：2017
- 卷：36
- 期：1
- 页码：37-47
- 全文大小：2341 K
- 卷排序：36
文摘
Chronic diarrhoea is a common entity in daily clinical practice and it leads to a loss in these patients quality of life. It may be the main symptom of multiple ethiologies including bile acid malabsorption (BAM) which has a comparable prevalence to celiac disease. The BAM results from imbalances in the homeostasis of bile acids in the enterohepatic circulation. It can be a consequence of ileal disease or ileal dysfunction (BAM type i), it can be considered idiopathic or primary (BAM type ii) or associated with other gastrointestinal entities (BAM type iii). Among the different diagnostic methods available, 75SeHCAT study is the primary current method due to its sensitivity, specificity, safety and low cost. The main disadvantage is that it's not available in all countries, so other diagnostic methods have appeared, such as serum measurement of FGF19 and C4, however they are significantly more complex and costly. The first-line treatment of bile acid diarrhoea is bile acid sequestrant, such as cholestyramine, which can be difficult to administer due to its poor tolerability and gastrointestinal side effects. These are less prominent with newer agents such as colesevelam. In summary, the BAM is a common entity underdiagnosed and undertreated, so it is essential to establish a diagnosis algorithm of chronic diarrhoea in which the 75SeHCAT study would be first or second line in the differential diagnosis of these patients.