PT - JOURNAL ARTICLE AU - Saricaoglu, Fatma AU - Akinci, Seda B. AU - Celiker, Varol AU - Aypar, Ulku TI - The effect of acute normovolemic hemodilution and acute hypervolemic hemodilution on coagulation and allogeneic transfusion DP - 2005 May 01 TA - Saudi Medical Journal PG - 792--798 VI - 26 IP - 5 4099 - http://smj.org.sa/content/26/5/792.short 4100 - http://smj.org.sa/content/26/5/792.full SO - Saudi Med J2005 May 01; 26 AB - OBJECTIVE: In this study, acute normovolemic hemodilution (ANH) and hypervolemic hemodilution (HHD) were compared with no hemodilution with regards to the effectiveness in blood usage and coagulation parameters.METHODS: The study was performed from February to August 2001 at Hacettepe University Hospital, Ankara, Turkey. Thirty patients undergoing hip arthroplasty surgery were prospectively randomized into: ANH group [autologous blood 15 mL kg-1 was withdrawn and replaced by 6% hydroxyethylstarch (HES)] or HHD group (HES was administered without removal of any autologous blood) or the control group (no hemodilution). In all groups, blood was given when hemoglobin concentration was <9 g dl-1.RESULTS: Three groups were clinically similar regarding blood loss, mean arterial pressures and coagulation parameters. But allogeneic transfusion requirements were significantly less in hemodilution groups (20% in ANH, 40% in HHD) compared to the control group (100% of patients).CONCLUSION: We conclude that hemodilution (both ANH and HHD) decreases the demand for homologous blood without adversely affecting hemodynamics or coagulation parameters and HHD seems to be a simple and valuable alternative to ANH in orthopedic patient undergoing hip replacement.