Original article

Blood Transfusion - 4 2022 (July-August)

Single-dose intravenous ferric carboxymaltose infusion versus multiple fractionated doses of intravenous iron sucrose in the treatment of post-operative anaemia in colorectal cancer patients: a randomised controlled trial

Authors

Key words: postoperative anaemia, colorectal cancer, intravenous iron
Publication Date: 2021-10-15

Abstract

Background - Recent clinical guidelines suggest that treatment of postoperative anaemia in colorectal cancer surgery with intravenous iron reduces transfusion requirements and improves outcomes. The study aimed at comparing two intravenous iron regimens in anaemic patients after colorectal cancer surgery.
Materials and methods - This was a single-centre, open-label, randomised, controlled trial in patients undergoing elective colorectal cancer surgery. Patients with moderate to severe anaemia (haemoglobin [Hb] <11 g/dL) after surgery were randomly assigned 1:1 to receive ferric carboxymaltose (FC; 1,000 mg, single dose) or iron sucrose (IS; 200 mg every 48 hours until covering the total iron deficit or discharge). Randomisation was stratified by Hb level: <10 g/dL (Group A) or  ≥10–10.9 (Group B). The primary endpoint was the change in Hb concentration at postoperative day 30. Secondary endpoints included iron status parameters, transfusion requirements, complications, and length of hospital stay.
Results - From September 2015 to May 2018, 104 patients were randomised (FC 50, IS 54). The median intravenous iron dose was 1,000 mg and 600 mg in the FC and IS groups, respectively. There were no between-group differences in mean change in Hb from postoperative day 1 to postoperative day 30  (FC: 2.5 g/dL, 95% CI: 2.1-2.9; IS: 2.4 g/dL, 95% CI: 2.0-2.8; p=0.52), in transfusion requirements or length of stay. The infection rate was lower in the FC group compared with the IS group (9.8% vs 37.2%, respectively).
Discussion - The administration of approximately 500 mg of IS resulted in an increase in Hb at postoperative day 30 similar to that of 1,000 mg of FC, but it was associated with a higher infection rate. Future research will be needed to confirm the results, and to choose the best regime in terms of effectiveness and side effects to treat postoperative anaemia in colorectal cancer patients.

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Authors

María J. Laso-Morales - Department of Anaesthesiology, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain

Roser Vives - Departament de Farmacologia, de Terapèutica i de Toxicologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain

Elvira Bisbe - Department of Anaesthesiology, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain

José A. García-Erce - Banco de Sangre y Tejidos de Navarra, Servicio Navarro de Salud, Osasunbidea, Pamplona, Spain; Grupo Español de Rehabilitación Multimodal (GERM), Instituto Aragonés de Ciencias de la Salud, Zaragoza, Spain; BM Group, Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain

Manuel Muñoz - Peri-operative Transfusion Medicine, School of Medicicne, Málaga, Spain

Fernando Martínez-López - Department of Anaesthesiology, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain

Federico Carol-Boeris - Department of Anaesthesiology, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain

Caridad Pontes-García - Departament de Farmacologia, de Terapèutica i de Toxicologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain

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