Comparison of hemodialysis access flow measurements using flow dilution and in-line dialysance.

Comparison of hemodialysis access flow measurements using flow dilution and in-line dialysance.
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使用流量稀释和在线透析进行血液透析通路流量测量的比较。

DOI:
10.1097/mat.0b013e3181a90246
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发表时间:
2009
期刊:
ASAIO journal (American Society for Artificial Internal Organs : 1992)
影响因子:
--
通讯作者:
Sandler,RichardH
Sandler,RichardH
中科院分区:
--
文献类型:
--
作者:
Whittier,WilliamL;Mansy,HansenA;Rutz,DanielR;Lewis,AndrewM;Sandler,RichardH

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测量血液透析(HD)通路流量(Q A)是一种无创的方法,用于动静脉移植物或瘘监测。流动稀释(FD)和在线透析(DD)是测量Q a的两种常用方法。在一种随机的方式中,我们前瞻性地评估了48名HD患者在3个月的3个独立HD疗程中使用FD和DD的Q a。qa的测量结果相似(FD为1,016±412 ml/min, DD为1,009±425 ml/min, p= 0.44,标准差为0.79)。FD成功地测量了Q A≥2000 ml/min, DD“饱和”(表明Q A≥2000 ml/min,但没有提供数值Q A值)(n= 17)。同一透析时段的DD和FD测量值之间的Q A≤2,000 ml/min的相关系数很高(r= 0.9, p< 0.001),直线斜率为0.997。FD和DD方法的访问流量值在Q A≤2,000 ml/min时具有可比性,并且与其他方法相比,没有任何一种方法倾向于高估或低估Q A。对于Q A低于2,000 ml/min, FD提供了定量的Q A测量,因此对于高于该阈值的Q A可能是有用的工具,而DD则不是。
Measurement of hemodialysis (HD) access flow (Q A) is a noninvasive approach for arteriovenous graft or fistula surveillance. Flow dilution (FD) and in-line dialysance (DD) are two common methods for measuring Q A. In a randomized fashion, we prospectively evaluated Q A using FD and DD in 48 HD patients during three separate HD sessions over a span of 3 months. The measurement of Q A was similar (1,016±412 ml/min for FD and 1,009±425 ml/min for DD, p= 0.44 and 0.79 for the mean and standard deviation, respectively). While FD successfully measured Q A≥ 2,000 ml/min, DD “saturated”(indicating a Q A≥ 2,000 ml/min without providing a numerical Q A value)(n= 17). The correlation coefficient for Q A≤ 2,000 ml/min between DD and FD measurements from the same dialysis sessions was high (r= 0.9, p< 0.001) with a straight line slope of 0.997. Access flow values for FD and DD methods were comparable at Q A≤ 2,000 ml/min and no single method tended to over-or underestimate Q A compared with the other. For Q A> 2,000 ml/min, FD provided a quantitative Q A measure, and is therefore a potentially useful tool for Q A above this threshold, while DD is not.
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