Methods: let 21 patients who usually and repeatedly occurred low pressure dialyse 500 times, and compared with dialysis by high natrium and low temperature 600 times.

• 方法：21例经常性反复性发生低血压的维持性血液透析患者常规血透500例次，高钠、低血温透析600例次比较低血压发生的情况。