Abstract
Clinical symptoms of colonic aganglionosis (CA) in children 3 to 6 years of age are difficult due to its clinical presentation which represents as the complications of this pathology, because of it the classic signs of Hirschsprung’s disease (HD) are partially eliminated or hidden, which makes it difficult for the effective diagnosis of this pathology in these children. Purpose - to study the clinical symptoms of CA and its complications in children 3 to 6 years of age and to determine the significance of clinical symptoms for the verification of HD. Materials and methods. We have done retrospective analysis of the clinical manifestations in 240 children 3 to 6 years of age with HD, considering the extent of CA, the presence of associated malformations and complications. There were 95 (39.58%) patients with the rectal form of CA, 143 (59.59%) with the rectosigmoid form, 2 (0.83%) with the subtotal form. There were no patients with total CA in this age group. There were 192 boys (80.0%), and 48 girls (20.0%). At the age of 3-4 years 71 (29.58%) patients were diagnosed with HD, at the age of 4-5 years - 79 (32.91%), and at the age of 5-6 years - 90 (37.51%) patients. Results. The diagnosis of HD can be of course considered as late for patients from 3 to 6 years of age. We found associated malformations in 45 (18.75%) patients. Associated intestinal malformations were found in 26 (10.83%) patients, of which 19 (7.92%) had malformations that significantly increased the clinical symptoms of CA and its complications: malrotation (n=17 (7.08%)) and internal abdominal hernia (2 (0.83%)). Enterocolitis (EC) was found in 98 (40.83%) patients. The 1st degree of EC was established in 9 (3.75%) children, 2nd degree - in 34 (14.16%) and 3rd degree - in 55 (22.91%) patients. Among these 55 with 3rd degree of EC the critical moment in the progression of the course of EC was toxic megacolon (TM), which occurred in 14 (25.46%). Hypotrophy was established in 18 (7.49%) patients. Anemia of various degrees was diagnosed in 35 (14.58%) children. The acute stage of the course of HD was diagnosed in 98 (40.83%) patients, subacute - in 77 (32.08%) and chronic - in 65 (27.08%) children. The clinical course of HD was correlated with the extent of the colon affected with CA and is closely related to the presence of its complications: EC, anemia and hypotrophy. Conclusions. Clinical symptoms of CA in children aged 3 to 6 years remains typical and informative upon careful evaluation of complaints, medical history, and objective and laboratory results. The severity of the course, associated developmental malformations and late diagnosis are the main reasons for the appearance of severe complications of HD in children 3 to 6 years of age - EC (40.83%), TM (25.46%), hypotrophy (7.49%) and anemia (14.58%). Variants of complications in CA are characteristic and predictable. Comparison of the clinical signs of CA and its complications contribute to the correct assessment of the patient's condition and timely establishment of the correct diagnosis. The research was carried out in accordance with the principles of the Declaration of Helsinki. The research protocol was approved by the Local Ethics Committee of all institutions mentioned in the work. Informed consent of the children’s parents was obtained for the research. No conflict of interests was declared by the authors.
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