Objective To analyze the composition of stones in elderly patients with upper urinary tract stones,explore the factors related to postoperative recurrence,and propose corresponding prevention strategies.Methods A ret-rospective analysis was conducted in 112 elderly patients with upper urinary tract stones who received treatment at Zhoushan Hospital from January 2020 to December 2023.They were divided into a recurrence group of 26 cases and a non-recurrence group of 86 cases based on whether there was postoperative recurrence.A infrared spectroscopy automatic analysis system was used to detect the composition of stones,and general information,stone related information,and labo-ratory biochemical indicators were compared between two groups.Results Among 112 elderly patients with upper urina-ry tract stones,calcium oxalate stones(64.29％)were the most common,followed by uric acid stones(17.86％).The proportion of magnesium ammonium phosphate stones in the recurrent group was higher than that in the non recurrent group(P＜0.05).The body mass index(BMI),total cholesterol,triglycerides,and blood uric acid in the recurrent group were all higher than those in the non recurrent group(P＜0.05).Logistic regression analysis showed that high BMI and magnesium ammonium phosphate stones were independent risk factors for postoperative recurrence of upper uri-nary tract stones in the elderly(P＜0.05).Conclusions Calcium oxalate stones are the most common type of upper u-rinary tract stones in elderly patients,followed by uric acid stones.High BMI and magnesium ammonium phosphate stones are independent risk factors for postoperative recurrence of upper urinary tract stones in the elderly.
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