开发和外部验证一个预测模型,适合于隔离的门诊切除术的静脉静脉患者
Eveline R Y Scheerders1, David van Klaveren2, Wendy S J Malskat1
1Department of Dermatology, Erasmus MC University Medical Centre, Rotterdam, the Netherlands.
概括
预测隔离的门诊骨干切除术后的成功结果至关重要. 一个新的模型根据支流长度,SFJ反流和干径确定了可能避免进一步疏松干切除的患者.
科学领域:
- 血管外科 血管外科
- 弗莱博学 (Phlebology) 是一种神经病学.
- 医疗信息学 医疗信息学
背景情况:
- 隔离的门诊骨干切除术是一种治疗不合格的细静脉和支流的方法.
- 识别最受益于此程序的患者对于优化治疗策略至关重要.
研究的目的:
- 为了确定预测因子,以避免隔离切除术后的二次轴切除.
- 开发和外部验证用于预测这一结果的多变量模型.
主要方法:
- 使用SAPTAP试验数据开发了一个多变量后勤回归模型.
- 预测者通过向后选择进行选择,并使用一致性指数评估模型歧视.
- 该模型在一个单独的患者队列上进行了外部验证.
主要成果:
- 最终的模型包括支流长度,软骨结 (SFJ) 反流和软骨直径作为预测因素.
- 患有较长的支流,较小的干径和缺少SFJ反流的患者更有可能避免二次切除.
- 该模型表现出适度的区分能力 (C指数为0.72内部,0.73外部).
结论:
- 开发和验证了一种预测模型,用于避免隔离切除术后的二次切除.
- 该模型可以帮助临床医生为静脉功能不充分的患者选择适当的治疗策略.
- 影响成功的关键因素包括支流特征,SFJ反流和沙干直径.
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