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A reduction in type and screen: preoperative prediction of RBC transfusions in surgery procedures with intermediate
W A van Klei1, K G Moons, A T Leyssius
1Department of Peri-operative Care, Anesthesia and Pain Management, Julius Centre for General Practice and Patient Oriented Research, University Medical Centre Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands.
British Journal of Anaesthesia
|August 9, 2001
Summary
A new prediction rule can identify surgical patients unlikely to need blood transfusions, potentially avoiding 50% of routine
Area of Science:
- Transfusion Medicine
- Surgical Patient Management
- Clinical Prediction Modeling
Background:
- Routine preoperative 'type and screen' is common for surgical patients.
- Most patients undergoing 'type and screen' do not require blood transfusion.
- Unnecessary investigations increase patient burden and healthcare costs.
Purpose of the Study:
- To develop and validate a predictive model for blood transfusion in surgical patients.
- To identify factors that predict transfusion needs.
- To reduce the number of unnecessary 'type and screen' procedures.
Main Methods:
- Studied 1482 surgical patients with intermediate transfusion risk.
- Utilized multivariate logistic regression and ROC analysis.
- Validated the model in a separate patient cohort.
Main Results:
- Gender, age (>=70 years), and surgical procedure type predicted transfusion (ROC area 0.75).
- The validated rule correctly identified 35% of patients for whom 'type and screen' could be withheld.
- Preoperative hemoglobin concentration further reduced investigations by 15% in remaining patients.
Conclusions:
- A simple prediction rule can safely avoid preoperative 'type and screen' in approximately 50% of intermediate-risk surgical patients.
- This approach can significantly reduce patient burden and hospital costs.
- Optimizing transfusion protocols improves resource utilization in surgical care.