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Revista Española de Cirugía Ortopédica y Traumatología (English Edition)
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Inicio Revista Española de Cirugía Ortopédica y Traumatología (English Edition) Erythropoietin in Patients Undergoing Elective Joint Arthroplasty and Preoperati...
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Vol. 51. Issue 6.
Pages 319-324 (November - December 2007)
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Vol. 51. Issue 6.
Pages 319-324 (November - December 2007)
Original paper
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Erythropoietin in Patients Undergoing Elective Joint Arthroplasty and Preoperative Autologous Blood Donation
La función de la eritropoyetina en pacientes sometidos a artroplastia articular electiva y a donación de sangre autóloga preoperatoria
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A. Di Martinoa, M.C. Tirindellib, M. Migliaccioc, C. Fossatib, F. Cancilleria, G. Avvisatib, V. Denaroa,
Corresponding author
denaro@unicampus.it

Corresponding author: Servicio de Cirugía Ortopédica y Traumatología. Campus Universitario BioMédico. Via Longoni, 69/83. 00155 Roma.
a Department of Orthopedic and Trauma Surgery
b Department of Hematology. Biomedical University
c Blood Bank. Sandro Pertini Hospital. Rome. Italy
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Article information
Purpose

The aim of this study was to determine whether erythropoyetin (EPO) supplementation permits an adequate autologous blood donation prior to elective hip or knee arthroplasty in patients with boundary hematocrit and hemoglobin (Hb) levels.

Materials and methods

Between January 2000 and December 2001, sixty-six patients were included in this study who required total hip or knee arthroplasty and who had also been enrolled in a preoperative transfusion program. Patients were classified into two groups, taking into account their hemoglobin levels: those with Hb < 13g/dl (group 1, 37 patients) received EPO (10.000 IU, 3 times a week) throughout the transfusion program whereas those with Hb > 13g/dl (group 2, 29 patients) were not given EPO before or during the self-transfusion program. Blood was extracted from patients in both groups once a week for one to three weeks; all patients received oral iron supplementation. In all patients, median hemoglobin and hematocrit values were determined before the first blood extraction (baseline values), during the preoperative period and at discharge; a record was made of the amount of blood extracted and transfused for each group. Twenty patients were excluded during the study since they did not fulfill the inclusion criteria (group 1: n=12; group 2: n=8). Lastly, the data corresponding to 46 patients was statistically analyzed (group 1: n=25; group 2: n=21).

Results

Although the median baseline hemoglobin and hematocrit values for group 2 were significantly higher than those for group 1 (p<0.001), no differences were observed between both groups regarding their median levels during the preoperative and postoperative periods or at discharge. Nor any differences were observed regarding the amount of blood extracted and transfused.

Conclusions

Differences observed in the baseline hemoglobin and hematocrit levels between the two groups were fully resolved thanks to the prophylactic administration of EPO during the preoperative self-transfusion program, which was concluded appropriately even for patients with boundary hemoglobin and hematocrit levels.

Key words:
erythropoyetin
autologous blood transfusion
blood donation
arthroplasty
knee/hip replacement
Objetivo

El objetivo de este estudio ha sido evaluar si la suplementación con eritropoyetina (EPO) permite una apropiada donación de sangre autóloga previa a una artroplastia electiva de cadera o rodilla, incluso en pacientes con niveles límite de hematocrito (Hcto) y hemoglobina (Hb).

Material y método

Desde enero de 2000 hasta diciembre de 2001 fueron incluidos en este estudio 66 pacientes que requirieron artroplastia total de cadera o rodilla, a quienes se había inscrito previamente en un programa de autotransfusión preoperatoria. Los pacientes fueron clasificados en dos grupos teniendo en cuenta sus niveles de Hb: aquéllos con un nivel de Hb < 13g/dl (grupo 1; 37 pacientes) recibieron EPO (10.000 UI, 3 veces por semana) durante el programa de autotransfusiones, mientras que a aquéllos con un nivel de Hb > 13g/dl (grupo 2; 29 pacientes) no se les suministró EPO ni antes ni durante el programa de autotransfusión. A los pacientes de ambos grupos se les extrajo sangre una vez por semana durante un período de entre una y tres semanas, administrándoseles además hierro por vía oral. En todos los pacientes se evaluaron los valores de Hb y Hcto antes de la primera extracción de sangre (valores basales), en el período prequirúrgico y al alta, registrándose además la cantidad de sangre recogida y transfundida para cada grupo. Durante el estudio se excluyeron 20 pacientes por no cumplir los criterios de inclusión (grupo 1, n=12; grupo 2, n=8). Finalmente, se analizaron estadísticamente los datos correspondientes a 46 pacientes (grupo 1, n=25; grupo 2, n=21).

Resultados

A pesar de que los valores basales de Hb y Hcto para el grupo 2 fueron significativamente más elevados que para el grupo 1 (p<0,001), no se observaron diferencias entre ambos grupos en cuanto a sus niveles correspondientes durante el período preoperatorio, el postoperatorio y el momento del alta hospitalaria, ni tampoco en cuanto a la cantidad de sangre recogida y transfundida.

Conclusiones

La diferencia en los niveles basales de Hb y Hcto observada entre los dos grupos fue completamente corregida gracias a la administración profiláctica de EPO durante el programa de autotransfusión preoperatoria, el cual se desarrolló de forma adecuada incluso en aquellos pacientes con niveles límite de Hb y Hcto.

Palabras clave:
eritropoyetina
transfusión de sangre autóloga
donación de sangre
artroplastia
sustitución articular de rodilla/cadera
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Copyright © 2007. Sociedad Española de Cirugía Ortopédica y Traumatología (SECOT). All rights reserved
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