Related Experiment Video
Updated: Sep 7, 2025
Continuous Manual Exchange Transfusion for Patients with Sickle Cell Disease: An Efficient Method to Avoid Iron Overload
Published on: March 14, 2017
Preoperative Iron Deficiency Is Associated With Increased Blood Transfusion in Infants Undergoing Cardiac Surgery
Peng Gao1, Xu Wang1, Peiyao Zhang1
1Pediatric Cardiac Surgery Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Insights
Preoperative iron deficiency (ID) in infants undergoing cardiac surgery is common, particularly in those with cyanotic heart disease. Absolute ID independently predicts the need for postoperative blood transfusions.
Area of Science:
- Pediatric Cardiology
- Hematology
- Critical Care Medicine
Background:
- Iron deficiency (ID) is prevalent in cardiac surgery patients, linked to adverse outcomes.
- The role of ID in congenital heart disease (CHD) remains under-investigated.
- This study focuses on preoperative ID in infants undergoing cardiac surgery with cardiopulmonary bypass.
Purpose of the Study:
- To characterize preoperative iron deficiency in infants undergoing cardiac surgery.
- To determine the association between iron deficiency and clinical outcomes, including blood transfusions.
- To identify predictors of iron deficiency in this pediatric population.
Main Methods:
- Retrospective study of 314 infants undergoing cardiac surgery.
- Categorization into absolute ID (ferritin <12 μg/L) and functional ID (ferritin 12-30 μg/L, TSAT <20%).
- Logistic regression analysis to identify ID predictors and assess outcome associations.
Main Results:
- 32.5% had absolute ID, 28.7% had functional ID.
- Absolute ID associated with higher weight, cyanotic heart disease, and anemia.
- Absolute ID independently predicted increased postoperative blood transfusion (OR 1.837).
Conclusions:
- Absolute ID is linked to preoperative anemia and cyanotic heart disease in pediatric cardiac surgery patients.
- Absolute ID is an independent risk factor for postoperative blood transfusion.
- Further research is needed to refine ID definitions and understand its impact on pediatric cardiac surgery outcomes.
Background:
Iron deficiency (ID) is common in patients undergoing cardiac surgery, which is associated with adverse outcomes. However, the relevance of ID in congenital heart disease is still unclear. This study aimed to investigate the characteristics of preoperative ID and its association with clinical outcomes in infants undergoing cardiac surgery with cardiopulmonary bypass.
Methods:
In this retrospective study, 314 patients undergoing cardiac surgery were assigned into three groups according to their preoperative ID status. Absolute ID was defined by serum ferritin <12 μg/L, and functional ID was defined by serum ferritin level at 12-30 μg/L and transferrin saturation <20%. Baseline characteristics were compared between groups and multiple logistic regression was used to identify predictors for ID. The association between ID and clinical outcomes, including allogenic blood transfusion requirements, was also evaluated.
Results:
Among the 314 patients included, 32.5% were absolute ID and 28.7% were functional ID. Patients with absolute ID were more often of higher weight, cyanotic heart disease, and anemia. The presence of absolute ID was associated with an increase in postoperative blood transfusion (OR 1.837, 95% CI 1.016-3.321, p = 0.044). There was no significant difference in postoperative morbidity, mortality, and the length of hospital stay.
Conclusions:
Absolute ID was associated with preoperative anemia and cyanotic heart disease, and was an independent risk factor for postoperative blood transfusion. Further research should better explore the definition of ID and its impact on outcomes in pediatric cardiac surgery.
Related Concept Videos
01:28Cardiomyopathy VII: Pre and Post Operative Nursing Management
01:26Kidney Transplant II: Surgical Procedure
01:28Cardiac Catheterization I: Pre-Procedure Overview
01:15Blood Transfusion
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
02:45Blood Transfusion and Agglutination
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
01:22Bone Marrow Sampling and Transplants
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...