Cardiac arrest is considered to be a cause of small bowel ischemia, but the consequences of cardiac arrest on the human small bowel have been rarely studied. Plasma citrulline concentration is a marker of functional enterocyte mass, and plasma intestinal fatty acid-binding protein (I-FABP) concentration is a marker of enterocyte damage. We aimed to measure enterocyte biomarkers after cardiac arrest and to study the prognostic value of biomarker abnormalities. This is a prospective, observational, single-center study of patients admitted to the intensive care unit (ICU) for cardiac arrest, evaluating plasma citrulline and I-FABP concentrations at admission and after 24  h and variables according to the Utstein criteria. Variables according to 28-day Cerebral Performance Category score of 1 to 2 (good neurological outcome) versus 3 to 5 (poor neurological outcome) were compared. Sixty-nine patients with cardiac arrest of both cardiac and hypoxic origin were included. At ICU admission, plasma citrulline concentration was low in 65% and plasma I-FABP was elevated in 82% of the patients. After 24  h, plasma citrulline was low in 82% and I-FABP was normal in 60% of the patients. Patients with a poor neurological outcome had a lower plasma citrulline concentration and a higher I-FABP concentration at ICU admission. By multivariate analysis, plasma citrulline levels of 13.1  μmol L or less and I-FABP more than 260  pg mL were independently associated with a poor neurological outcome (odds ratio, 21.9 [2.2-215], and odds ratio, 13.6 [1.4-129], respectively). Cardiac arrest resuscitation is associated with evidence of small bowel mucosal damage in most patients, with a short and intense I-FABP elevation at admission and a decrease in citrulline concentration during the first day. In this study, low plasma citrulline and high I-FABP concentrations at ICU admission were predictive of a poor neurological outcome. This study confirms that cardiac arrest is a model of small bowel mucosal ischemia and suggests that enterocyte damage is a piece in the puzzle of post-cardiac arrest syndrome.

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   |type=    RBID
   |clé=     pubmed:26196845
   |texte=   Enterocyte Damage: A Piece in the Puzzle of Post-Cardiac Arrest Syndrome.
}}

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