Characteristics and Outcomes of Patients Who Achieve High Workload (≥10 Metabolic Equivalents) During Treadmill Exercise Echocardiography  Nowell M. Fine,

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Characteristics and Outcomes of Patients Who Achieve High Workload (≥10 Metabolic Equivalents) During Treadmill Exercise Echocardiography  Nowell M. Fine, MD, Patricia A. Pellikka, MD, Christopher G. Scott, MSc, S. Michael Gharacholou, MD, Robert B. McCully, MD  Mayo Clinic Proceedings  Volume 88, Issue 12, Pages 1408-1419 (December 2013) DOI: 10.1016/j.mayocp.2013.07.021 Copyright © 2013 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 1 Survival after exercise echocardiography of patients with excellent exercise capacity (censored for revascularization within 30 days of exercise echocardiography), stratified according to (A) age, (B) sex, (C) diabetic status, and (D) pretest probability of CAD. CAD = coronary artery disease; Int = intermediate. Mayo Clinic Proceedings 2013 88, 1408-1419DOI: (10.1016/j.mayocp.2013.07.021) Copyright © 2013 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 2 Survival after exercise echocardiography of patients with excellent exercise capacity (censored for revascularization within 30 days of exercise echocardiography), stratified according to exercise ECG variables: (A) workload achieved, (B) 85% or more of MAPHR achieved, and (C) exercise ECG result. ECG = electrocardiogram; MAPHR = maximal age-predicted heart rate; MET = metabolic equivalent; Neg. = negative; Pos. = positive. Mayo Clinic Proceedings 2013 88, 1408-1419DOI: (10.1016/j.mayocp.2013.07.021) Copyright © 2013 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 3 Survival after exercise echocardiography (echo) of patients with excellent exercise capacity (censored for revascularization within 30 days of exercise echo), stratified according to exercise echo variables (data given as annualized mortality rates per person-year of follow-up with 95% CI in parentheses): (A) exercise echo result: normal, 0.30% (0.24%-0.37%); positive, 0.53% (0.33%-0.80%); fixed, 0.93% (0.56%-1.46%); (B) extent of exercise RWMAs: 0 segments (seg), 0.30% (0.24%-0.37%); 1 to 4 seg, 0.55% (0.34%-0.84%); 5 or more seg, 0.85% (0.52%-1.31%); (C) LVESV response: normal, 0.35% (0.29%-0.42%); abnormal, 0.75% (0.37%-1.33%); and (D) LVEF immediately after exercise: 70% or more, 0.30% (0.23%-0.37%); 50% to 69%, 0.51% (0.36%-0.69%); less than 50%, 1.72% (0.79%-3.28%). The annualized cardiovascular mortality rates per person-year of follow-up (95% CI) for the above subgroups were as follows: (A) exercise echo result: normal, 0.05% (0.03%-0.08%); positive, 0.22% (0.10%-0.41%); fixed, 0.25% (0.05%-0.74%); (B) extent of exercise RWMAs: 0 seg, 0.05% (0.03%-0.08%); 1 to 4 seg, 0.18% (0.07%-0.38%); 5 or more seg, 0.30% (0.12%-0.61%); (C) LVESV response: normal, 0.07% (0.05%-0.11%); abnormal, 0.27% (0.07%-0.69%); and (D) LVEF immediately after exercise: 70% or more, 0.06% (0.04%-0.10%); 50% to 69%, 0.10% (0.04%-0.20%); less than 50%, 0.77% (0.21%-1.96%). abn = abnormal; Ex LVEF = left ventricular ejection fraction immediately after exercise; LVEF = left ventricular ejection fraction; LVESV = left ventricular end-systolic volume; RWMA = regional wall motion abnormality. Mayo Clinic Proceedings 2013 88, 1408-1419DOI: (10.1016/j.mayocp.2013.07.021) Copyright © 2013 Mayo Foundation for Medical Education and Research Terms and Conditions