Results The APTT and TT in LMWH group do not prolong significantly in hemodialysis, while they prolong significantly in UFH group at 30 minutes after hemodialysis and at the end of hemo diylsis.

• 结果 应用低分子量肝素抗凝时APTT、TT在透析过程中延长不明显（P>0.；05），普通肝素组APTT、TT于透析30分钟及透析结束时明显延长，甚至部分血液不凝。