Perioperative Transfusions in Veterans Following Noncardiac Procedures.

Area of Science:

• Medicine
• Surgery
• Hematology

Background:

• Perioperative blood transfusions are linked to increased patient morbidity and mortality.
• Transfusion rates and associated operative variables differ among surgical specialties.

Purpose of the Study:

• To identify common and unique variables influencing perioperative transfusion requirements across surgical specialties.
• To analyze the impact of preoperative factors on transfusion needs and patient outcomes.

Main Methods:

• Retrospective review of 5344 patients from the Veterans Affairs Surgical Quality Improvement Project.
• Stratification of patients based on perioperative transfusion (within 72 hours).
• Univariate and multivariate analyses to identify significant risk factors.

Main Results:

• 153 patients (2.9%) required perioperative transfusion.
• Transfused patients were more likely to be male, have bleeding disorders, and possess more preoperative risk factors.
• Elevated preoperative hematocrit was protective against transfusion; no significant difference in complications between specialties.

Conclusions:

• Specialty-based transfusion differences may relate to patient demographics, hospital thresholds, and surgical complexity.
• Preoperative hematocrit optimization is a potential strategy to mitigate transfusion-associated morbidity and cost.
• Strategies like B12, folate, iron, and erythropoietin supplementation may improve hematocrit levels.