实用医学杂志 ›› 2023, Vol. 39 ›› Issue (18): 2300-2305.doi: 10.3969/j.issn.1006-5725.2023.18.003

• 专题报道:腰椎疾病 • 上一篇    下一篇

腰椎间盘突出症患者术后发生隐性失血的列线图预测模型构建

祁修权,王唯,裘小康,许晔   

  1. 南京医科大学第一附属医院(江苏省人民医院) (南京 210003 )
  • 收稿日期:2023-06-12 出版日期:2023-09-25 发布日期:2023-10-10

Establishment of Nomogram prediction model for latent blood loss in patients with lumbar disc herniation after operation

Xiuquan QI,Wei WANG,Xiaokang QIU,Ye. XU   

  1. The First Affiliated Hospital of Nanjing Medical University (Jiangsu Provincial People′s Hospital),Nanjing 210003,China
  • Received:2023-06-12 Online:2023-09-25 Published:2023-10-10

摘要:

目的 分析影响腰椎间盘突出症患者术后发生隐性失血的危险因素,并构建列线图(Nomogram)预测模型。 方法 选取2019年2月至2022年8月来我院就诊的200例腰椎间盘突出症患者为研究对象,根据患者术后的隐性失血情况分为阳性组(n = 85)和阴性组(n = 115)。采用ROC实验分析连续性变量的预测价值;采用logistic回归实验分析影响腰椎间盘突出症患者术后发生隐性失血的危险因素;采用内部数据验证Nomogram模型临床效能。 结果 两组在性别、BMI等一般资料的比较中,差异无统计学意义(P > 0.05);与阴性组相比,阳性组患者年龄较高,围术期输血者较多,手术节段数较高,TC、TG水平较高,术后血红蛋白水平较低(P < 0.05);年龄、手术节段数、TC、TG、术后血红蛋白的AUC为0.611、0.607、0.602、0.673、0.791,最佳截断值为39岁、2节、4.96 mmol/L、6.79 mmol/L、107 g/L;年龄(> 39岁)、围术期输血(是)、手术节段数(> 2节)、TC(> 4.96 mmol/L)、TG(> 6.79 mmol/L)、血红蛋白差值(> 44 g/L)均为影响腰椎间盘突出症患者术后发生隐性失血的危险因素(P < 0.05);Nomogram模型预测风险C-index 为0.775(95%CI:0.669 ~ 0.848);模型预测的风险阈值> 0.07。 结论 年龄(> 39岁)、围术期输血(是)、手术节段数(> 2节)、TC(> 4.96 mmol/L)、TG(> 6.79 mmol/L)、血红蛋白差值(> 44 g/L)均为影响腰椎间盘突出症患者术后发生隐性失血的危险因素,且基于以上变量构建的Nomogram模型可以对患者术后发生隐性失血进行较好的预测。

关键词: 腰椎间盘突出症, 隐性失血, 危险因素, Nomogram预测模型

Abstract:

Objective To analyze the risk factors of recessive blood loss in patients with lumbar disc herniation after surgery and establish a nomogram prediction model. Methods Two hundred patients with lumbar disc herniation who came to our hospital from February 2019 to August 2022 were selected as the research objects. According to the recessive blood loss after surgery, the patients were divided into positive group (n = 85) and negative group (n = 115). ROC experiment was used to analyze the predictive value of continuous variables. Logistic regression experiment was used to analyze the risk factors of recessive blood loss in patients with lumbar disc herniation after operation. Internal data were used to verify the clinical efficacy of Nomogram model. Results There was no significant difference in gender, BMI and other general data between the two groups (P > 0.05). Compared with the negative group, the patients in the positive group were older, and they had more perioperative blood transfusions, larger number of surgical segments, higher TC and TG levels, and lower postoperative hemoglobin levels (P < 0.05). The AUCs of age, number of operative segments, TC, TG and postoperative hemoglobin were 0.611, 0.607, 0.602, 0.673, 0.791, respectively, with the optimal cutoff values 39 years, 2 segments, 4.96 mmol/L, 6.79 mmol/L, 107 g/L, respectively. Age (> 39 years), perioperative blood transfusion, number of operative segments (> 2 segments), TC (> 4.96 mmol/L), TG (> 6.79 mmol/L), and hemoglobin difference (> 44 g/L) were all risk factors for recessive blood loss in the patients (P < 0.05). Nomogram model predicted the risk of occult blood loss in the patients after surgery by a C-index of 0.775 (95% CI: 0.669 ~ 0.848), with a risk threshold of recessive blood loss > 0.07. Nomogram model predictively yielded clinical net benefits as well. Conclusion Age (> 39 years), perioperative blood transfusion, number of operative segments (> 2 segments), TC (> 4.96 mmol/L), TG (> 6.79 mmol/L), and hemoglobin difference (> 44 g/L) are all risk factors that affect the occurrence of recessive blood loss in patients with lumbar disc herniation after surgery. Nomogram model based on the above variables can better predict the occurrence of recessive blood loss in those patients.

Key words: lumbar disc herniation, occult blood loss, risk factors, Nomogram prediction model

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