摘要
Abstract
Objective To construct a nomogram prediction model for the risk of occult blood loss in perioperative patients with intertrochanteric fracture of femur.Methods From June 2020 to June 2022,clinical data of 96 patients with intertrochanteric fracture of femur admitted to our hospital were retrospectively collected.According to the average amount of blood loss,they were divided into a large amount of blood loss group(n=42)and a non large amount of blood loss group(n=54).Univariate and multi-variate analysis were conducted on the influencing factors of blood loss.The R3.6.3 software and rms package was applied to build a nomogram model to predict the risk of occult blood loss,and the differentiation and consistency of the model were evaluated.Results Among 96 patients,42(43.75％)had massive occult blood loss.Univariate analysis showed that there were statistically significant difference in age,surgical type,admission albumin,and DD(x2=8.979,8.368,15.453,t=5.855,P＜0.05).Multiva-riate Logistic regression analysis showed that age＞70 years old,surgical type InterTAN,admission albumin＜30 g/L,and DD were independent risk factors for perioperative occult blood loss in patients with intertrochanteric fractures of the femur(P＜0.05).The column chart model showed that age＞70 years old,InterTAN,admission albumin＜30 g/L,and DD increase by 14.2,14.8,26.8,and 11.1 points for every 0.5 mg/L increase,respectively.The model had good consistency and discrimination.Conclusion Age＞70 years old,surgical type InterTAN,admission albumin＜30 g/L and DD would be all influencing factors for perioperative occult blood loss in patients with intertrochanteric fracture.The column-graph model would have certain clinical significance for in-dividual prediction of perioperative occult blood loss in patients with intertrochanteric fracture.关键词
股骨转子间骨折/围手术期/隐匿性失血/列线图模型Key words
intertrochanteric fracture of femur/perioperative period/occult blood loss/nomograph model分类
医药卫生
