body mass index, hypertension, chronic obstructive pulmonary disease, congestive heart failure, and a requirement for dialysis) were associated with the degree of preoperative anemia. The median follow-up was 4 years (range, 1.25-5.78 years). On univariate analysis, 30-day mortality, total LOS, and overall survival were significantly associated with the level of preoperative anemia (Table ). These associations persisted in the multivariate models (Table ). Kaplan-Meier survival was also associated with the degree of anemia (P < .001; Fig).Conclusions: The presence and degree of preoperative anemia was independently associated with 30-day mortality, total LOS, and overall survival for patients undergoing PVI. The presence and degree of anemia should be important components of preoperative risk stratification for patients undergoing PVI. Anemia should be a listed variable in all reports detailing the outcomes of PVI.
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