• Am. J. Surg. · Aug 2007

    Perioperative beta-blocker therapy and heart rate control during noncardiac surgery.

    • Carolyn Berg, David H Berger, Ayuk Makia, Caleb Whalen, Daniel Albo, Charles Bellows, and Samir S Awad.
    • Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Michael E. DeBakey Veterans Affairs Hospital, MED VAMC, OCL (112), 2002 Holcombe Blvd., Houston, TX 77030, USA.
    • Am. J. Surg. 2007 Aug 1;194(2):189-91.

    BackgroundPerioperative treatment with beta-blockade is a widely advocated practice. We assessed the preoperative, intraoperative, and postoperative control of heart rate (HR) in patients who received beta-blockade as recommended during preoperative medicine clearance.MethodsWe conducted a retrospective review of patients who underwent noncardiac surgery from 2002 to 2004 at the Michael E. DeBakey Veterans Affairs Medical Center in Houston, Texas, with recommendations of beta-blockade as part of their risk stratification. Demographic data and comorbid risk factors were collected on patients undergoing general anesthesia. All data were presented as mean +/- SEM. The chi-square test and analysis of variance were used for statistical analysis.ResultsA total of 130 patients referred for preoperative medicine clearance, who were risk-stratified based on comorbid conditions and risk of procedure, had beta-blockade started before elective surgery. Sixty percent (78 of 130) of the patients underwent high-/intermediate-risk surgery. The mean preoperative HR was 74 +/- 1 beat per minute (bpm). The mean intraoperative HR was 69 +/- 1 bpm. The mean postoperative HR was 84 +/- 1 bpm. There was a significant difference in the preoperative and intraoperative HR when compared with the postoperative HR (P < .003). There were no deaths at 30 days postoperatively. Perioperative cardiac morbidity occurred in 5.4% (7 of 130) of all patients (high patient risk, 71%; low patient risk, 29%; P < .05), and did not correlate with procedure risk.ConclusionsBeta-blockade is achieved sufficiently in the preoperative and intraoperative settings. However, attention to postoperative HR may be warranted to maintain the benefits of beta-blockade.

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