Investigation of syncope: increasing the yield and reducing the cost.

[1] Forslund L, Hjelmdahl P, Held C et al. Prognostic implications of results from exercise testing in patients with chronic stable angina pectoris treated with metoprolol or verapamil. A report from the angina prognosis study in Stockholm. Eur Heart J 2000; 21: 901–10. [2] ACC/AHA guidelines for exercise testing: executive summary. A report of the American College of Cardiology/American Heart Association Task Force on practice guidelines (committee on exercise testing). Circulation 1997; 96: 345–54. [3] Mark DB, Hlatky MA, Harrell FEJ, Califf RM, Pryor DB. Exercise treadmill score for predicting prognosis in coronary artery disease. Ann Int Med 1987; 106: 793–800. [4] Weiner DA, Ryan TJ, MacCabe CH et al. Prognostic importance of a clinical profile and exercise test in medically treated patients with coronary artery disease. J Am Coll Cardiol 1984; 3: 772–9. [5] Weiner DA, Ryan TJ, Parsons L et al. Long-term prognostic value of exercise testing in men and women from the coronary artery surgery (CASS) Registry. Am J Cardiol 1995; 75: 865– 70. [6] Murphy JF, Krone RJ, for the Multicenter Study of Myocardial Ischemia Group (MSMI). Importance of exercise capacity in the interpretation of a myocardial ischemic response to exercise testing. Am J Cardiol 1998; 82: 1525–6. [7] Veronique LR, Jacobsen SJ, Pellikka PA, Miller TD, Bailey KR, Gersh BJ. Prognostic value of treadmill exercise testing. Circulation 1998; 98: 2836–41. [8] Stone PH, Chaitman BR, Forman S et al., for the ACIP investigators. Prognostic significance of myocardial ischemia detected by ambulatory electrocardiography, exercise treadmill testing, and electrocardiogram at rest to predict cardiac events by one year (The asymptomatic cardiac ishemic pilot (ACIP) study). Am J Cardiol 1977; 80: 1395–1401.