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Hemodynamics and Perfusion in Premature Infants During Transfusion
Barbara Weaver1, Kelsey Guerreso1, E Alexander Conner1
1Barbara Weaver is Adjunct Faculty, Georgia College and State University, Campus Box 063, Milledgeville, GA 31061-0490 (cweaver@pstel.net). Kelsey Guerreso is Medical Student IV, Mercer University School of Medicine, Macon, Georgia. E. Alexander Conner is Medical Student IV, Mercer University School of Medicine, Macon, Georgia. Kendra Russell is Professor and Director, Program Innovation & Evaluation-Nursing, Middle Georgia State University, Macon, Georgia. Robert Vogel is Professor, Department of Biostatistics and Epidemiology, Jian-Ping Hsu College of Public Health, Georgia Southern University, Macon, Georgia. Mitch Rodriguez is Medical Director, Neonatal Intensive Care Unit, Navicent Health/Mercer University Pediatrics Residency Program, Macon, Georgia.
Premature infants receiving packed red blood cell transfusions experience significant cardiovascular and oxygen delivery changes. Advanced monitoring during transfusions can guide individualized care for anemic neonates.
Area of Science:
- Neonatal Physiology
- Pediatric Cardiology
- Transfusion Medicine
Background:
- Premature infants often require packed red blood cell transfusions.
- Current transfusion guidelines lack robust empirical evidence and exhibit institutional variability.
Purpose of the Study:
- To compare cardiovascular hemodynamics and oxygen delivery changes in anemic premature infants undergoing transfusion versus non-anemic controls.
- To identify physiological shifts not detectable by standard monitoring.
Main Methods:
- Prospective observational cohort study of 75 premature infants.
- Data collected before, during, and after transfusions in anemic infants.
- Control group monitored over time; feedings withheld around transfusions.
Main Results:
- Electrical cardiometry and near-infrared spectroscopy revealed significant hemodynamic changes.
- Statistically significant alterations observed in cardiac output, oxygen extraction, heart rate variability/complexity, and splanchnic oxygen saturation.
- These changes were not detected by standard bedside monitoring.
Conclusions:
- Bedside monitoring of cardiovascular hemodynamics and oxygen delivery is crucial during transfusions in anemic premature infants.
- This monitoring can inform individualized patient care.
- Findings support the development of evidence-based transfusion guidelines.
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