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Title: Clinical features analysis of Kawasaki disease with abdominal symptoms as the first manifestation.
Author: Yang P, Mao Z, Sun M, Guo J.
Journal: Eur J Pediatr; 2023 Sep; 182(9):4049-4057. PubMed ID: 37394531.
Abstract:
To investigate the clinical characteristics of Kawasaki disease (KD) presenting with abdominal manifestation as the first manifestation. Our findings may help improve the cognition of KD with abdominal complications, and avoid misdiagnosis and missed diagnosis. A retrospective analysis was conducted of 1490 KD patients admitted to Shengjing Hospital between January 2019 and March 2022. Clinical characteristics, related factors, and prognosis of KD with abdominal manifestation as first manifestation were analyzed. Based on the presenting symptoms, patients were divided into gastrointestinal symptom group (n = 141), liver dysfunction group (n = 55), and control group (n = 1294). In the gastrointestinal group, diarrhea [100 cases (70.9%)], vomiting [55 cases (39.0%)], and abdominal pain [34 cases (24.1%)] were the most common symptoms at onset. 8 cases (5.7%) were complicated with pseudo-intestinal obstruction, 6 cases (4.3%) with ischemic colitis, 5 cases (3.5%) with pancreatitis, 2 cases (1.4%) with appendicitis, and 1 case (0.7%) with cholecystitis. Comparied to ordinary gastroenteritis caused by infection, gastroenteritis with KD has longer fever duration before treatment, higher WBC, PLT, CRP, AST levels and lower albumin levels. All patients in the liver dysfunction group had elevated transaminases, and 19 patients (34.5%) presented with jaundice. In the gastrointestinal group, the average hospital stay was 10.3 days, and the incidence of IVIG unresponsiveness and coronary artery lesion were 18.4% and 19.9%, respectively, which were significantly higher than that in the control group. In the liver dysfunction group, the average hospital stay (11.18 days), incidence of IVIG unresponsiveness (25.5%), and incidence of coronary artery lesion (29.1%) were significantly higher than that in the control group. On multivariate logistic regression analysis, gastrointestinal involvement, fever duration, ALT, PLT, and CRP were identified as risk factors for CAL, younger age, gastrointestinal involvement and fever duration were risk factors for IVIG unresponsiveness. Conclusion: KD with gastrointestinal involvement is associated with a higher risk of IVIG unresponsiveness and coronary artery lesion. KD should be considered in the differential diagnosis of children with acute fever, especially those with gastrointestinal involvement and liver dysfunction. What is Known: • Fever duration, PLT, and CRP were identified as risk factors for CAL. Timely diagnosis and application of IVIG treatment can avoid exploratory laparotomy for ileus, appendectomy for misdiagnosed appendicitis, colonoscopy for misdiagnosed inflammatory bowel disease, and reduce the complications of CAL and IVIG unresponsiveness. What is New: • Abdominal symptoms as the first manifestation can be an independent risk factor for CAL and IVIG unresponsiveness. KD should be considered in the differential diagnosis of children with acute fever, especially those with gastrointestinal symptoms or liver dysfunction. • Gastroenteritis in KD group had longer fever duration before treatment, accompanied with higher WBC, PLT, CRP, AST levels and lower albumin levels than those gastroenteritis caused by infection. Therefore, high attention should be paid to the possibility of KD when gastroenteritis accompanied by along fever duration, high WBC, PLT, CRP, AST level or lowalbumin level.

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