Annals of surgery · 2011
Early diagnosis of intestinal ischemia using urinary and plasma fatty acid binding proteins.
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Thuijls Geertje, van Wijck Kim, Grootjans Joep, Derikx Joep P M, van Bijnen Annemarie A, Heineman Erik, Dejong Cornelis H C, Buurman Wim A, Poeze Martijn
Аннотация
OBJECTIVE: This study aims at improving diagnosis of intestinal ischemia, by measuring plasma and urinary fatty acid binding protein (FABP) levels.
METHODS: Fifty consecutive patients suspected of intestinal ischemia were included and blood and urine were sampled at time of suspicion. Plasma and urinary concentrations of intestinal FABP (I-FABP), liver FABP (L-FABP) and ileal bile acid binding protein (I-BABP) were measured using enzyme-linked immunosorbent assays.
RESULTS: Twenty-two patients suspected of intestinal ischemia were diagnosed with intestinal ischemia, 24 patients were diagnosed with other diseases, and 4 patients were excluded from further analysis fulfilling exclusion criteria. Median plasma concentrations of I-FABP and L-FABP and urinary concentrations of all 3 markers were significantly higher in patients with proven intestinal ischemia than in patients suspected of intestinal ischemia with other final diagnoses (plasma I-FABP; 653 pg/mL vs. 109 pg/mL, P = 0.02, plasma L-FABP; 117 ng/mL vs. 25 ng/mL, P = 0.006, urine I-FABP; 3377 pg/mL vs. 115 pg/mL, P = 0.001, urine L-FABP; 1,199 ng/mL vs. 37 ng/mL, P =0.004, urine I-BABP; 48.6 ng/mL vs. 0.6 ng/mL, P = 0.002). Positive and negative likelihood ratios significantly increased positive posttest probability and decreased negative posttest probability on intestinal ischemia. In patients with intestinal ischemia a trend to higher plasma I-BABP levels was observed when the ileum was involved (18.4 ng/mL vs. 2.9 ng/mL, P = 0.05).
CONCLUSION: Plasma and especially urinary I-FABP and L-FABP levels and urinary I-BABP levels can improve early diagnosis of intestinal ischemia. Furthermore, plasma I-BABP levels can help in localizing ileal ischemia.
METHODS: Fifty consecutive patients suspected of intestinal ischemia were included and blood and urine were sampled at time of suspicion. Plasma and urinary concentrations of intestinal FABP (I-FABP), liver FABP (L-FABP) and ileal bile acid binding protein (I-BABP) were measured using enzyme-linked immunosorbent assays.
RESULTS: Twenty-two patients suspected of intestinal ischemia were diagnosed with intestinal ischemia, 24 patients were diagnosed with other diseases, and 4 patients were excluded from further analysis fulfilling exclusion criteria. Median plasma concentrations of I-FABP and L-FABP and urinary concentrations of all 3 markers were significantly higher in patients with proven intestinal ischemia than in patients suspected of intestinal ischemia with other final diagnoses (plasma I-FABP; 653 pg/mL vs. 109 pg/mL, P = 0.02, plasma L-FABP; 117 ng/mL vs. 25 ng/mL, P = 0.006, urine I-FABP; 3377 pg/mL vs. 115 pg/mL, P = 0.001, urine L-FABP; 1,199 ng/mL vs. 37 ng/mL, P =0.004, urine I-BABP; 48.6 ng/mL vs. 0.6 ng/mL, P = 0.002). Positive and negative likelihood ratios significantly increased positive posttest probability and decreased negative posttest probability on intestinal ischemia. In patients with intestinal ischemia a trend to higher plasma I-BABP levels was observed when the ileum was involved (18.4 ng/mL vs. 2.9 ng/mL, P = 0.05).
CONCLUSION: Plasma and especially urinary I-FABP and L-FABP levels and urinary I-BABP levels can improve early diagnosis of intestinal ischemia. Furthermore, plasma I-BABP levels can help in localizing ileal ischemia.