• José Luis Calleja, Salvadora Delgado, Adolfo del Val, Antonio Hervás, José Luis Larraona, Álvaro Terán, Mercedes Cucala, Fermín Mearin, and Colon Cancer Study Group.
• Digestive Diseases Department, Hospital Puerta de Hierro, Calle Manuel de Falla 1, Majadahonda, 28222, Madrid, Spain. joseluis.calleja@uam.es.
• Int J Colorectal Dis. 2016 Mar 1; 31 (3): 543-51.

PurposeThe purpose of the study was to evaluate the efficacy of preoperative intravenous (IV) ferric carboxymaltose (FCM) administration vs. no-IV iron in colon cancer (CC) anemic patients undergoing elective surgery with curative intention.MethodsThis was a multicenter, observational study including two cohorts of consecutive CC anemic patients: the no-IV iron treatment group was obtained retrospectively while FCM-treated patients were recorded prospectively.ResultsA total of 266 patients were included: 111 received FCM (median dose 1000 mg) and 155 were no-IV iron subjects. Both groups were similar in terms of demographic characteristics, tumor location, surgical approach, and intra-operative bleeding severity. The FCM group showed a significant lower need for red blood cell (RBC) transfusion during the study (9.9 vs. 38.7%; OR: 5.9, p < 0.001). In spite of lower hemoglobin levels at baseline diagnosis and lower transfusion rates in the FCM group, the proportion of responders was significantly higher with respect to the no-IV group both at hospital admission (48.1 vs. 20.0%, p < 0.0001) and at 30 days post-surgery (80.0 vs. 48.9%, p < 0.0001). The percentage of patients with normalized hemoglobin levels was also higher in the FCM group (40.0 vs. 26.7% at 30 days, p < 0.05). A lower number of reinterventions and post-surgery complications were seen in the FCM group (20.7 vs. 26.5%; p = 0.311). The FCM group presented a significant shorter hospital stay (8.4 ± 6.8 vs. 10.9 ± 12.4 days to discharge; p < 0.001).ConclusionsPreoperative ferric carboxymaltose treatment in patients with CC and iron deficiency anemia significantly reduced RBC transfusion requirements and hospital length of stay, reaching higher response rates and percentages of normalized hemoglobin levels both at hospital admission and 30 days post-surgery.

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