title: The value of preoperative pharmacologic stress testing before vascular surgery using ACC/AHA guidelines: a prospective, randomized trial.
abstract: OBJECTIVE
  To evaluate the validity of preoperative cardiac stress testing using clinical predictors from the American College of Cardiology/American Heart Association Guidelines on Perioperative Evaluation before Noncardiac Surgery in patients undergoing vascular surgery.
  
  
  METHODS
  Prospective, randomized pilot study.
  
  
  METHODS
  Academic medical center.
  
  
  METHODS
  Patients undergoing elective abdominal aortic, infrainguinal, and carotid vascular surgery.
  
  
  METHODS
  After stratification by American College of Cardiology/American Heart Association (ACC/AHA) Guideline parameters, 99 patients were randomized to preoperative cardiac stress testing or to no stress testing and followed for up to 12 months postoperatively for adverse cardiac outcomes.
  
  
  RESULTS
  Before hospital discharge of 46 patients who underwent preoperative stress testing, 7 (15%) had inducible ischemia with no adverse postoperative cardiac outcomes, whereas only 1 (3%) of 39 patients (85%) with no ischemia had a nonfatal adverse cardiac outcome (p = not significant). Of 53 patients without preoperative stress testing, only 2 (4%) had a nonfatal adverse postoperative cardiac outcome. There were no cardiac deaths. At 12-month follow-up in 79 (80%) patients, there was 1 nonfatal adverse cardiac outcome (no stress test) and 1 cardiac death (abnormal stress test), reflecting a 1% 12-month cardiac morbidity and mortality.
  
  
  CONCLUSIONS
  In this small prospective, randomized study evaluating the validity of preoperative cardiac stress testing using ACC/AHA Guidelines before major vascular surgery, preoperative cardiac stress testing offered no incremental value for determining postoperative adverse cardiac outcomes. Larger randomized clinical trials are needed to confirm these findings.
authors.affiliation: Division of Cardiology, Johns Hopkins Bayview Medical Center, Baltimore, MD, USA. rfalcone@cccassoc.net
authors.forename: Rita A
authors.initials: RA
authors.lastname: Falcone
authors.forename: Caitlin
authors.initials: C
authors.lastname: Nass
authors.forename: Roland
authors.initials: R
authors.lastname: Jermyn
authors.forename: Christine M
authors.initials: CM
authors.lastname: Hale
authors.forename: Tracey
authors.initials: T
authors.lastname: Stierer
authors.forename: Calvin E
authors.initials: CE
authors.lastname: Jones
authors.forename: Gerald K
authors.initials: GK
authors.lastname: Walters
authors.forename: Lee A
authors.initials: LA
authors.lastname: Fleisher
mesh_terms: D000368:Aged; D000572:American Heart Association; D002316:Cardiotonic Agents; D004280:Dobutamine; D025401:Echocardiography, Stress / Q000379:methods*; D005260:Female; D019983:Guideline Adherence; D006801:Humans; D008297:Male; D010865:Pilot Projects; D017410:Practice Guidelines as Topic / Q000592:standards; D011237:Predictive Value of Tests; D011300:Preoperative Care / Q000379:methods*; D011446:Prospective Studies; D015203:Reproducibility of Results; D014481:United States; D014656:Vascular Surgical Procedures / Q000009:adverse effects*
chemical_list: D002316:Cardiotonic Agents; D004280:Dobutamine