Red Blood Cell Distribution Width Predicts Myocardial Infarction and Mortality After Vascular Surgery-A Prospective...

Area of Science:

• Cardiovascular Surgery
• Hematology
• Clinical Outcomes Research

Background:

• Preoperative Red blood cell Distribution Width (RDW) is a measure of red blood cell size variation.
• Its association with postoperative outcomes in vascular surgery patients requires further investigation.

Purpose of the Study:

• To determine if preoperative RDW, specifically RDW-standard deviation (RDW-SD), is associated with 30-day mortality and myocardial infarction (MI) after elective vascular arterial surgery.

Main Methods:

• A prospective cohort study was conducted at a university hospital.
• Included patients undergoing elective vascular arterial surgery.
• Primary outcome: 30-day mortality; Secondary outcome: 30-day MI.

Main Results:

• RDW-SD was an independent predictor of 30-day mortality (adjusted OR 1.08, p=0.032) and 30-day MI (adjusted OR 1.10, p=0.020).
• Other predictors of mortality included age; predictors of MI included dependent functional status and insulin medication.
• Patients with MI had higher rates of diabetes, CKD, and ASA physical status IV.

Conclusions:

• RDW-SD is a significant independent predictor of adverse postoperative outcomes, including MI and mortality, in vascular surgery patients.
• RDW-SD measurement may offer valuable insights for risk stratification and early intervention strategies.