Scandinavian journal of gastroenterology · 2016
The utility of faecal calprotectin to predict post-operative recurrence in Crohńs disease.
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Herranz Bachiller Maria Teresa, Barrio Andres Jesus, Fernandez Salazar Luis, Ruiz-Zorrilla Rafael, Sancho Del Val Lorena, Atienza Sanchez Ramon
Аннотация
OBJECTIVE: Endoscopic recurrence in Crohńs disease occurs in up to 80% of patients during the first year after surgery. Due to this, these patients need close monitoring. Faecal calprotectin has been proposed to be used as a non-invasive marker to monitor inflammatory activity. Up to now the use of faecal markers in endoscopic recurrence has been scarcely studied and with contradictory results.
MATERIAL AND METHODS: This was a cross-sectional observational study of diagnostic validity. It included all patients with Crohńs disease (CD) and ileocolic resection retrospectively who had had an ileocolonoscopy and a determination of faecal calprotectin before this colonoscopy, from 2007 to 2015.
RESULTS: Ninety-seven patients were included. We observed that the mean value of faecal calprotectin increased as the Rutgeerts score increased. The variable of that most statistical significance obtained in bivariate analysis was faecal calprotectin (p < 0.0001). Area under curve (AUC) of faecal calprotectin in endoscopic recurrence was 0.74 (95% CI: 0.644-0.842), and an optimal cut-off of 60 mcrgr/gr, obtained a score of 0.45 using Youden test. This indicated that calprotectin would have 88% Sensitivity and 58% Specificity in detecting any recurrence, the NPV was approximately 83,9%. None of the other variables studied had a significant correlation.
CONCLUSION: Faecal calprotectin predicts endoscopic recurrence in CD patients who have gone through surgery, however the cut-off point is still a problem so we cannot recommend calprotectin as a substitute of colonoscopy for CD monitoring and treatment adjustment.
MATERIAL AND METHODS: This was a cross-sectional observational study of diagnostic validity. It included all patients with Crohńs disease (CD) and ileocolic resection retrospectively who had had an ileocolonoscopy and a determination of faecal calprotectin before this colonoscopy, from 2007 to 2015.
RESULTS: Ninety-seven patients were included. We observed that the mean value of faecal calprotectin increased as the Rutgeerts score increased. The variable of that most statistical significance obtained in bivariate analysis was faecal calprotectin (p < 0.0001). Area under curve (AUC) of faecal calprotectin in endoscopic recurrence was 0.74 (95% CI: 0.644-0.842), and an optimal cut-off of 60 mcrgr/gr, obtained a score of 0.45 using Youden test. This indicated that calprotectin would have 88% Sensitivity and 58% Specificity in detecting any recurrence, the NPV was approximately 83,9%. None of the other variables studied had a significant correlation.
CONCLUSION: Faecal calprotectin predicts endoscopic recurrence in CD patients who have gone through surgery, however the cut-off point is still a problem so we cannot recommend calprotectin as a substitute of colonoscopy for CD monitoring and treatment adjustment.