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KMID : 1155520080030010062
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Anesthesia and Pain Medicine
2008 Volume.3 No. 1 p.62 ~ p.66
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Blood Transfusion in Bilateral Total Knee Arthroplasty: Comparison between Staged and Simultaneous Surgery
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Chung Seung-Hyun
Kim Jong-Su
Do Sang-Hwan
Kim Kyoung-Ok
Park Hee-Yeon
Ryu Choon-gun
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Abstract
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Background: In the case of bilateral total knee replacement arthroplasty (TKA), surgery is performed either simultaneously or in a staged manner.We tried to investigate the differences of blood loss and transfusion practice between the use of simultaneous and staged operations.
Methods: We analyzed retrospectively the medical records of 20 patients undergoing simultaneous TKA (simultaneous group), who received autologous blood via a reinfusion system, and 20 patients undergoing staged TKA (staged group), of which the interval is about three weeks.We compared the amount of blood loss, and the number of transfusions and transfusion-related complications between the two groups of patients.
Results: Postoperative total blood loss was 2,174 ± 460 ml in the simultaneous group and 1,850 ± 461 ml in the staged group. There was no significant difference for transfusion (simultaneous group 3.5 ± 1.1 units, staged group 3.9 ± 1.4 units; P ＞ 0.05). In the simultaneous group, the volume of autologous transfusion was 985 ± 326 ml, corresponding to 2.5 ± 0.8 units. The total number of transfused RBC units including autologous blood was 6.1 ± 1.5 units in the simultaneous group and 3.9 ± 1.4 units in the staged group. In the staged group, the amount of postoperative drained blood was significantly less in the second knee operation than that in the first knee operation (first knee surgery, 992 ± 265 ml; second knee surgery, 868 ± 260 ml: P ＜ 0.05).
Conclusions: Postoperative blood loss and total transfusion were less in the staged TKA group of patients as compared with the simultaneous TKA group of patients. Postoperative blood salvage and reinfusion appear to be safe and effective for patients undergoing simultaneous TKA.
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KEYWORD
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costs and cost analysis, knee replacement arthroplasty, transfusion
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