RT info:eu-repo/semantics/doctoralThesis T1 Análisis de dos esquemas de tratamiento con hierro oral e intravenoso en cirugía cardiaca : ensayo clínico en fase IV, randomizado, doble ciego y doble enmascarado A1 Rodríguez Fortúnez, Patricia María K1 Cirugía del corazón K1 Acción de los medicamentos AB Background: Anemia is a frequent complication after cardiopulmonary bypass surgery. Iron therapy has been variably employed by medical centres over the years. Objective: To test the clinical effectiveness of intravenous and oral iron supplementation in correcting anemia, and its impact on blood transfusion requirements, in patients undergoing cardiopulmonary bypass (CPB) surgery. Methods: A double-blind randomized placebo-controlled clinical trial with three parallel groups of patients. Group I (n=54): intravenous iron III-hydroxide sucrose complex, three doses of 100 mg /24 hours during pre- and postoperative hospitalization and 1 pill/24 h of oral placebo in the same period and during one month after discharge. Group II (n=53): oral ferrous fumarate iron 1 pill/24 hours pre- and postoperatively and during one month after discharge, and intravenous placebo while hospitalized. Group III (n=52): oral and intravenous placebo pre- and postoperatively, following the same protocol. Data were collected preoperatively, at theatre, at Intensive Care Unit admission, before hospital discharge and one month later. Results: 1) Baseline clinical and demographic characteristics and surgical procedures were similar in the three groups, 2) no inter-group differences were found in hemoglobin and hematocrit during the postoperative period, 3) the intravenous iron group showed higher serum ferritin levels at hospital discharge (1321±495 ng/mL; P<0.001) and one month later (610±387;P< 0.001) compared with the other groups, and 4) we did not observe statistical differences in blood transfusion requirements between the three groups. Conclusion: The use of intravenous or oral iron supplementation proved ineffective at correcting anemia after CPB and did not reduce blood transfusion requirements. PB Universidad de La Laguna, Servicio de Publicaciones SN 978-84-15910-61-9 YR 2014 FD 2014 LK http://riull.ull.es/xmlui/handle/915/100 UL http://riull.ull.es/xmlui/handle/915/100 LA es DS Repositorio institucional de la Universidad de La Laguna RD 11-dic-2024