title: Patients with positive preoperative stress tests undergoing vascular surgery.
abstract: OBJECTIVE
  To examine the perioperative cardiac morbidity and mortality in patients undergoing major vascular surgery with beta-blockade after a positive stress test or cardiac catheterization.
  
  
  METHODS
  Retrospective review of a quality assurance database.
  
  
  METHODS
  A university teaching hospital.
  
  
  METHODS
  A consecutive series of 31 patients undergoing peripheral vascular or aortic surgery after a positive stress test or catheterization between November 2001 and September 2003.
  
  
  METHODS
  None.
  
  
  RESULTS
  All 31 patients had a preoperative positive stress test and/or cardiac catheterization, with 12 having multiple areas at risk for myocardial ischemia. None had an intervening coronary revascularization. Twenty-seven had at least one of the intermediate clinical predictors as defined by the American College of Cardiology and 7 had a left ventricular ejection fraction < 40%. Twenty-three patients had been on a beta-blocker and continued on it, while the remainder started on it de novo perioperatively. None of the patients suffered from myocardial infarction, congestive heart failure, or cardiac death perioperatively.
  
  
  CONCLUSIONS
  This case series reports on the authors' experience with patients undergoing high-risk vascular surgery after a positive stress test or catheterization, but without an intervening coronary intervention. All patients received perioperative beta-blockade and had a very low adverse cardiac event rate. With reduction of adverse events by beta-blockade, the likelihood of a positive event may be reduced and the utility of the test in risk stratification may be questioned.
authors.affiliation: Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA. tim.park@hhs.co.santa-clara.ca.us
authors.forename: Kyung W Tim
authors.initials: KW
authors.lastname: Park
authors.forename: Kathirvel
authors.initials: K
authors.lastname: Subramaniam
authors.forename: Feroze
authors.initials: F
authors.lastname: Mahmood
authors.forename: Fred
authors.initials: F
authors.lastname: Shapiro
authors.forename: Selina
authors.initials: S
authors.lastname: Long
authors.forename: David
authors.initials: D
authors.lastname: Napoli
mesh_terms: D000368:Aged; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D011300:Preoperative Care; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D015996:Survival Rate; D014656:Vascular Surgical Procedures / Q000401:mortality*