• Habib Kedir, Rebecca Miller, Faizaan Syed, Mohammed Hakim, Hina Walia, Dmitry Tumin, Christopher McKee, and Joseph D Tobias.
• The Ohio State University College of Medicine, The Ohio State University College of Medicine, Columbus, OH; Department of Anesthesiology & Pain Medicine, Nationwide Children's Hospital, Columbus, OH. Electronic address: Habib.Kedir@osumc.edu.
• J. Pediatr. Surg. 2019 Oct 1; 54 (10): 2075-2079.

BackgroundAlthough preoperative anemia has been suggested to predict postsurgical morbidity and mortality among infants <1 year of age, the data were drawn from heterogeneous patient cohorts including severely ill infants undergoing complex, high-risk procedures. We aimed to determine whether untreated preoperative anemia was associated with increased risk of postoperative complications in infants <1 year of age who underwent pyloromyotomy, a common and relatively simple surgery.MethodsInfants <1 year of age undergoing pyloromyotomy were identified from the American College of Surgeons (ACS) National Surgical Quality Improvement Program-Pediatric database. Preoperative anemia was defined as a hematocrit ≤40% for infants 0-30 days of age and ≤30% for infants more than 30 days of age. Patients who received pre- or postoperative blood transfusions were excluded.ResultsWe identified 2948 patients who met our inclusion criteria, of whom 843 were anemic (29%). The overall rate of complications in this cohort was 6%. The most common postoperative complications were readmission (97 cases), surgical site infection (43), reoperation (39), prolonged hospital stay (24), urinary tract infection (3), 30-day mortality (3) and cardiac arrest (2). We found no differences in the incidence of complications in anemic versus nonanemic patients on bivariate analysis or multivariable logistic regression (adjusted odds ratio = 1.2; 95% confidence interval: 0.8-1.7; P = 0.319).ConclusionsIn relatively healthy infants undergoing pyloromyotomy, untreated preoperative anemia was not associated with postoperative compilations and should not be considered a significant risk factor. Level of evidence III.Copyright © 2019 Elsevier Inc. All rights reserved.

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