Rezapour Mohammad, Taran Somayeh, Balin Parast Mahmood, Khavanin Zadeh Morteza
PhD candidate, Department of Information Technology Management, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Master of Science in Physics, Department of Physics, Zanjan University, Zanjan, Iran.
Med J Islam Repub Iran. 2016 Apr 19;30:359. eCollection 2016.
Vascular Access (VA) is an important aspect for blood circulatory in Hemodialysis (HD). Arteriovenous Fistula (AVF) is a suitable procedure to gain VA. Maturation of the AVF is a status of AVF, which can be cannulated for HD. This study aimed to discover the parameters that effectively reduce the duration between VA and start of HD, which symbolizes the maturation time (MT).
Ninety-six patients who underwent AVF creation were selected for this study. The decision tree method was used based on CART/C4.5 algorithm, which is one of the data mining approaches for data classification. Vascular diameter ratio (VDR) coefficient was obtained (VDR=Artery/Vein diameters).
We investigated the relationship between the VDR and MT in this study and found that MT is reversely related to VDR in elderly patients, while this relation was direct in younger patients.
The analysis revealed a Spearman's correlation coefficient for Vein diameter with MT. MT decreases when diameters of vein and artery are close to one another. This study can help the surgeons to identify high- risk patients who elongate MT for HD.
血管通路（VA）是血液透析（HD）中血液循环的一个重要方面。动静脉内瘘（AVF）是获得血管通路的一种合适方法。AVF的成熟是指AVF达到可用于HD穿刺的状态。本研究旨在发现能有效缩短血管通路建立与开始血液透析之间时长的参数，该时长代表成熟时间（MT）。
本研究选取了96例行AVF造瘘术的患者。基于CART/C4.5算法使用决策树方法，该算法是数据挖掘中用于数据分类的方法之一。获得血管直径比（VDR）系数（VDR = 动脉直径/静脉直径）。
我们在本研究中调查了VDR与MT之间的关系，发现老年患者中MT与VDR呈负相关，而在年轻患者中这种关系是正相关。
分析显示静脉直径与MT之间存在斯皮尔曼相关系数。当静脉和动脉直径彼此接近时，MT会降低。本研究有助于外科医生识别延长HD成熟时间的高危患者。
