METHOD FOR PREDICTION OF RISK OF ACUTE APPENDICITIS IN CHILDREN Russian patent published in 2025 - IPC G01N33/48 A61B17/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to paediatric surgery. Preoperative and instrumental data are determined: age of children in years; quantitative value of leukocytes in general analysis of blood in 10⁹/l; quantitative value of lymphocytes in general analysis of blood in 10⁹/l; presence of nausea; presence of vomiting; presence of wall thickness of vermiform appendix more than 6 mm according to ultrasonic examination data. Position of each value on the corresponding horizontal axis of the nomogram is determined in accordance with Fig. 2, wherein data of age of children in years correspond to 0 to 27.5 points, data of quantitative value of leukocytes in general analysis of blood in 10⁹/l – from 0 to 100 points; data of quantitative value of lymphocytes in general analysis of blood in 10⁹/l – from 0 to 20 points, presence of nausea – from 0 to 20 points, presence of vomiting – from 0 to 15 points, presence of wall thickness of vermiform appendix of more than 6 mm according to ultrasonic examination – from 0 to 25 points. After determining the number of points for each criterion, all points are summed up. Obtained value is superimposed on the horizontal axis of the nomogram "total points" and the total score is used to determine the probability of acute appendicitis on the horizontal axis of the "probability of acute appendicitis" of the nomogram in accordance with Fig. 2, wherein increase in total score increases probability of acute appendicitis.

EFFECT: method enables creating an effective and easy-to-understand nomogram for predicting the development of acute appendicitis, which facilitates differential diagnosis of the given disease, which has high specificity and sensitivity.

1 cl, 3 dwg, 1 ex