Comparison of Heart Rate Blood Pressure Product Versus Age-Predicted Maximum Heart Rate as Predictors of Cardiovascular Events During Exercise Stress Echocardiography
被引:11
作者:
Whitman, Mark
论文数: 0引用数: 0
h-index: 0
机构:
Logan Hosp, Cardiac Invest Unit, Meadowbrook, Qld, Australia
Menzies Hlth Inst, Gold Coast, Qld, Australia
Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, AustraliaLogan Hosp, Cardiac Invest Unit, Meadowbrook, Qld, Australia
Whitman, Mark
[1
,2
,3
]
Jenkins, Carly
论文数: 0引用数: 0
h-index: 0
机构:
Logan Hosp, Cardiac Invest Unit, Meadowbrook, Qld, AustraliaLogan Hosp, Cardiac Invest Unit, Meadowbrook, Qld, Australia
Jenkins, Carly
[1
]
论文数: 引用数:
h-index:
机构:
Sabapathy, Surendran
[2
,4
]
论文数: 引用数:
h-index:
机构:
Adams, Lewis
[2
,4
]
机构:
[1] Logan Hosp, Cardiac Invest Unit, Meadowbrook, Qld, Australia
[2] Menzies Hlth Inst, Gold Coast, Qld, Australia
[3] Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, Australia
[4] Griffith Univ, Allied Hlth Sci, Gold Coast, Australia
MYOCARDIAL OXYGEN-CONSUMPTION;
ASSOCIATION TASK-FORCE;
PROGNOSTIC VALUE;
AMERICAN SOCIETY;
RATE RESPONSE;
CARDIOLOGY;
DISEASE;
RISK;
RECOMMENDATIONS;
PERFORMANCE;
D O I:
10.1016/j.amjcard.2019.05.027
中图分类号:
R5 [内科学];
学科分类号:
1002 ;
100201 ;
摘要:
Exercise stress echocardiograms (ESEs) are a functional cardiovascular (CV) test typically used for the investigation of coronary artery disease. ESEs are often terminated at a predetermined age-predicted maximum heart rate (APMHR) to facilitate timely acquisition of ultrasound images at peak exercise. Although an APMHR of 85% is often used, this has not been validated as a suitable termination end point. Heart rate blood pressure product (HRBPP) as an established measure of myocardial work may provide a more reliable assessment of cardiac workload. The aim of this study was to assess maximal HRBPP (MHRBPP) and APMHR as markers of cardiac workload during ESE, using CV events at mean followup as the outcome variable. After exclusions, 712 patients being investigated for ischemic heart disease, performed an ESE to volitional fatigue using the standard Bruce protocol. Patient demographics and test data were collected and patients followed for 4.4 +/- 2.1 years. Cut-points for MHRBPP (25,060; area under curve 0.77) and APMHR (93.8% and 97.9%; area under curve 0.71; p = 0.12 for difference) were established from receiver operating characteristic analysis. Those achieving an APMHR >85% but MHRBPP <25,060 had significantly more CV events than achieving an MHRBPP >25,060 regardless of APMHR (p <0.05). In conclusion, the current study demonstrates the superior prognostic power of MHRBPP over APMHR alone for the prediction of future CV events in patients performing an otherwise negative ESE for the detection of myocardial ischemia. (C) 2019 Elsevier Inc. All rights reserved.