Abstract:
:Efficacy and safety of a low-molecular-weight heparin (LMWH) were studied in 33 stable maintenance hemodialysis patients who had a bleeding tendency on unfractionated heparin. The optimal dose of LMWH for each patient was titrated before the study; the mean total LMWH dosage was 1,152 +/- 574 IU. No major bleeding or clot formation was noted in a total of 2,470 hemodialysis sessions during 6 months of LMWH administration. The mean value of plasma anti-factor Xa (anti-Xa) activity increased from 0.05 +/- 0.03 IU/ml before dialysis to 0.34 +/- 0.28 IU/ml after 2 h of dialysis and returned to 0.15 +/- 0.09 IU/ml after 4 h of dialysis; the mean activated partial thromboplastin time was 26.1 +/- 4.4 s before dialysis, 30.7 +/- 9.5 s (an 18% increase) after 2 h of dialysis, and 26.2 +/- 4.4 s after 4 h of dialysis. No significant change in serum antithrombin levels was noted throughout the whole study period. We conclude that a low dosage of LMWH is safe and effective in hemodialysis patients who have a risk of bleeding with unfractionated heparin. Serum anti-Xa activity is better than activated partial thromboplastin time and antithrombin in assessing the optimal dose of LMWH. A plasma anti-Xa activity of 0.37 IU/ml after 2 h of hemodialysis may represent an optimal dosage of LMWH for most patients.
journal_name
Nephronjournal_title
Nephronauthors
Leu JG,Chiang SS,Lin SM,Pai JK,Jiang WWdoi
10.1159/000045840subject
Has Abstractpub_date
2000-12-01 00:00:00pages
499-501issue
4eissn
1660-8151issn
2235-3186pii
45840journal_volume
86pub_type
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