Comparison of shock index, AIMS-65 and rockall scoresamong patients presenting with upper gastrointestinalsystem bleeding

Objective: In this study, it was aimed to compare the predictive properties of shock index, AIMS-65 and Rockall scores for mortality and morbidity in patients admitted to our hospital with upper gastrointestinal bleeding. Materials and Methods: This retrospective, cross-sectional study was conducted as a single center following the approval of the local ethics committee. The patients who applied to Samsun University Samsun Training and Research Hospital between January 1, 2021 and December 31, 2021 with a clinic of upper GI bleeding were included. Demographic data, vital signs, endoscopic diagnoses, laboratory results, length of hospital stay, intensive care unit admission, need for erythrocyte suspension and discharge were recorded by examining the files of the patients through the hospital software system. Shock index, AIMS65 and Rockall scores were calculated using the retrospective information of the patients at the first admission and after the endoscopy. The effects of these scores on length of stay and mortality were analyzed and compared with each other. Results: 343 patients who met the inclusion criteria were included in the study. Of these patients, 151 (44%) were female, 192 (56%) were male, and the mean age was 68.8 ± 15.8 years. While 295 (86%) of the patients were discharged alive, 48 (14%) patients died in the hospital. When each score was compared between the deceased and the survivors, all four scores were found to be statistically higher in the deceased patient group (p < 0.001). When compared with all four scoring systems, it was observed that length of stay in the intensive care unit, total length of hospital stay and need for erythrocyte transfusion correlated in significant statistically (p < 0.001). However, it was determined that these scores were not in a significant relationship with the length of service hospitalization (p > 0.001). When the performance of AIMS65 scores in predicting mortality was calculated, it was determined that the performance of the model was moderate and it was better in predicting mortality than the other scores. viii Conclusion: When the mortality prediction performance of the scores was compared with each other, it was found that the AIMS65 score was better than the other scores in predicting mortality in patients presenting with upper gastrointestinal bleeding. Keywords: Upper gastrointestinal bleeding, AIMS65, Shock index, Rockall score