Kianfar C, Rothera C, Lindsay R M
Adam Linton Dialysis Unit, London Health Sciences Centre, London, Ontario.
CANNT J. 1999 Fall;9(4):29-32; quiz 33-4, 35-40.
Intradialytic hypovolemia is a common complication of hemodialysis treatments. Blood volume changes that occur during dialysis can be followed by on-line optical sensing of the patient's hematocrit. Characteristic curves of blood volume changes can be seen in fluid overloaded patients with symptoms of hypovolemia, i.e. cramps, hypotension. The relative blood volume changes in those who have fluid removed to their ideal "dry" weight without symptoms will be shown in comparison. As Phase I of a CQI project, the nephrologist and dialysis nurses at the London Health Sciences Centre performed a cross-sectional study to define the frequency of these curves and their relationship to intradialytic symptoms. The analysis of these curves can be used to re-assess "dry" weights, prevent intradialytic hypovolemia and decrease the use of antihypertensive agents. The correlation of our findings with the results of an independent hypotensive CQI study will be presented.
透析期间的血容量过低是血液透析治疗的常见并发症。透析过程中发生的血容量变化可通过在线光学传感患者的血细胞比容来跟踪。在出现血容量过低症状（即痉挛、低血压）的液体过载患者中，可以看到血容量变化的特征曲线。相比之下，将展示那些被去除液体至理想“干体重”且无症状者的相对血容量变化。作为持续质量改进（CQI）项目的第一阶段，伦敦健康科学中心的肾病学家和透析护士进行了一项横断面研究，以确定这些曲线的出现频率及其与透析期间症状的关系。对这些曲线的分析可用于重新评估“干体重”、预防透析期间的血容量过低并减少抗高血压药物的使用。将展示我们的研究结果与一项独立的低血压CQI研究结果的相关性。
