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首页> 外文期刊>Ultrasound in Medicine and Biology >Isovolumic relaxation flow propagation velocity: a promising load-independent relaxation parameter in hemodialysis patients.
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Isovolumic relaxation flow propagation velocity: a promising load-independent relaxation parameter in hemodialysis patients.

机译:等容松弛流的传播速度:血液透析患者有希望的独立于负荷的松弛参数。

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摘要

The aim of this study is to evaluate whether isovolumic relaxation flow propagation velocity (IRFPV), a newly proposed relaxation parameter, is independent of load alterations. Thirty-nine uremic patients (21 men; age 62 +/- 10 y) who underwent echocardiography 1 h before and 1 h after hemodialysis (HD) were included. After HD, body weight, systolic blood pressure, early transmitral filling wave velocity (E), early diastolic mitral annular velocity (Ea) and early diastolic inflow propagation velocity (EPV) decreased significantly (p or=2.5 kg, E (p < 0.001), Ea (p = 0.001) and EPV (p = 0.001) decreased significantly but IRFPV (p = 0.715) was still constant after HD. In conclusion, IRFPV may be a load-independent parameter in assessing left ventricular diastolic function. However, Ea and EPV are load-independent only at minor load alterations. In evaluating left ventricular diastolic function in HD patients whose loading conditions frequently vary with time, IRFPV seems to be more adequate than Ea and EPV.
机译:这项研究的目的是评估等容松弛流传播速度(IRFPV)(一种新提出的松弛参数)是否与载荷变化无关。包括在血液透析(HD)之前1小时和之后1小时接受超声心动图检查的39例尿毒症患者(21名男性; 62 +/- 10岁)。 HD后,体重,收缩压,早期穿刺充盈波速度(E),早期舒张二尖瓣环速度(Ea)和早期舒张期流入传播速度(EPV)明显降低(p <或= 0.007),而IRFPV保持恒定(p = 0.550)。亚组分析显示,体重减轻<2.5 kg的患者,HD后E(p = 0.005)显着降低,但Ea(p = 0.078),EPV(p = 0.155)和IRPFV(p = 0.324)不变。 。体重减轻≥2.5kg的患者,HD后E(p <0.001),Ea(p = 0.001)和EPV(p = 0.001)明显降低,但IRFPV(p = 0.715)仍然恒定。总之,IRPFV可能是评估左心室舒张功能时与负荷无关的参数。但是,Ea和EPV仅在较小的负载变化下才与负载无关。在负荷情况经常随时间变化的HD患者中评估左室舒张功能时,IRPFV似乎比Ea和EPV更合适。

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