| Objective To investigate the diagnostic value of gastroenteroscopic narrow band imaging (NBI) combine with serum C-reactive protein (CRP), serum amyloid A (SAA), D-Dimer (D-D) in children with abdominal Henoch-Schonlein purpura (HSP). Methods 90 children with HSP who were admitted to our hospital from September 2022 to September 2024 were selected as the research objects, of which 50 children with abdominal HSP were included in the observation group and 40 children with other types of HSP were included in the control group. All children underwent gastroenteroscopic NBI examination and serum CRP, SAA and D-D levels were detected, and serum CRP, SAA and D-D levels were compared between the two groups, and the results of gastroenteroscopic NBI examination were analyzed in the two groups.Then the receiver operating characteristic (ROC) curve was applied to analyze the diagnostic value of gastroenteroscopic NBI and serum CRP, SAA, D-D alone or in combination in children with abdominal HSP. Results Serum CRP, SAA and D-D levels in the observation group were significantly higher than those in the control group (P<0.05); The results of gastroenteroscopic NBI showed that most of the children with abdominal HSP had some degree of changes in the gastric and duodenal mucosa, with mucosal congestion, edema, erosion, ulceration, and scattered bright or dark red bleeding spots as the main manifestations.Under gastroenteroscopic NBI, 41 of 50 children with abdominal HSP were diagnosed as abdominal HSP, and 11 of 40 children with other types of HSP were diagnosed as abdominal HSP; the area under the curve (AUC) of serum CRP, SAA, and D-D in the diagnosis of children with abdominal HSP were 0.668, 0.720 and 0.771, respectively, and the AUC of the combination diagnosis of serum CRP, SAA and D-D in the diagnosis of children with abdominal HSP was 0.815; The AUC of the diagnosis of gastroenteroscopic NBI and serum CRP, SAA and D-D in children with abdominal HSP was 0.801 and 0.815, respectively, and the AUC of the combination diagnosis of gastroenteroscopic NBI in children with abdominal HSP was 0.867. Conclusion Serum CRP, SAA and D-D in children with abdominal HSP were significantly increased, and the main manifestations under gastroenteroscopic NBI were mucosal congestion, edema, erosion, ulceration and scattered bright or dark red bleeding spots as the main manifestations. Gastroenteroscopic NBI combine with serum CRP, SAA and D-D could significantly improve the diagnostic efficiency of children with abdominal HSP. |
