"Recovery Only" ST-Segment Depression and the Predictive Accuracy of the Exercise Test

Lachterman, Bruce

doi:10.7326/0003-4819-112-1-11

Cited by 91 publications

(36 citation statements)

References 13 publications

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“…Subjects were placed in the supine position immediately after exercise. 14 No medications were changed or stopped before testing, and no test was classified as indeterminate. 15 The senior authors (V.F., J.M.)…”

Section: Exercise Testingmentioning

confidence: 99%

Prognostic Value of Heart Rate Increase at Onset of Exercise Testing

et al. 2007

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Background-The initial response of heart rate to dynamic exercise has been proposed as having prognostic value in limited studies that have used modalities other than the treadmill. Our aim was to evaluate the prognostic value of early heart rate parameters in patients referred for routine clinical treadmill testing. Methods and Results-The heart rate rise at the onset of exercise was measured in 1959 patients referred for clinical treadmill testing at the Palo Alto (Calif) Veterans Affairs Medical Center from 1997 to 2004. Multivariable Cox survival analysis was performed for 197 all-cause and 74 cardiovascular deaths that accrued during a mean follow-up of 5.4Ϯ2.1 years. Decreased heart rate changes at all initial relative exercise workloads were associated with significantly increased all-cause mortality. The heart rate rise at one-third total exercise capacity, however, was the only early heart rate variable that significantly predicted both all-cause and cardiovascular risk after adjustment for confounders. Failing to reach 1 SD in the heart rate rise at one-third total exercise capacity was associated with a 28% increased all-cause mortality rate (hazard ratio, 0.72; 95% CI, 0.61 to 0.85; PϽ0.001) and a 35% cardiovascular mortality rate (hazard ratio, 0.65; 95% CI, 0.49 to 0.86; Pϭ0.003). Of all heart rate measurements considered (initial and recovery), the heart rate increase at peak exercise was the most powerful predictor of cardiovascular prognosis after adjustment for potential confounders. The Duke treadmill score, however, was superior to all heart rate measurements in the prediction of cardiovascular mortality. Conclusions-In the present study population, a rapid initial heart rate rise was associated with improved survival, but the heart rate increase at peak exercise and other conventional measurements such as exercise capacity and the Duke treadmill score were more powerful predictors of prognosis.

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Section: Exercise Testingmentioning

confidence: 99%

Prognostic Value of Heart Rate Increase at Onset of Exercise Testing

et al. 2007

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“…Heart rate targets were not used as an endpoint or to judge the adequacy of the test. Patients did not perform a cool-down walk; they were placed supine immediately after exercise (14). Medications were not changed or stopped before testing.…”

Section: Exercise Testingmentioning

confidence: 99%

The prognostic value of exercise testing in elderly men

Spin

Prakash

Froelicher

et al. 2002

The American Journal of Medicine

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“…반대로 운동부하 검사(GXT) ST 분절의 하강은 실제로 제한적이지만 동맥경화 를 판단할 수 있으며 관상동맥 질환자(CAD)에서 좋지 않은 예후와 관련이 있다 [26]. 또한 ST분절의 하강은 몇몇의 연구에 서 운동중보다 회복단계에서 임상적으로 유의하게 나타난다 고 보고했다 [21,31,32]. 사실 협심증의 증상의 유․무와 관계없 이 운동중 ST분절의 하강은 사망의 위험을 증가시키는 것으로 예측할 수 있으며, 일반적으로 비 당뇨인에서 보다 당뇨환자 에서 심근허혈로 인한 ST분절의 하강이 더 높게 나타난다 [34].…”

Section: 서 론unclassified

Effects of 12 Week Regular Aerobic Exercise on ST-segment and QTc Interval in Type 2 Diabetes Mellitus Patients

Kim¹,

Paik²,

Jin³

et al. 2009

Journal of Life Science

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-The purpose of the present study was to examine effect of 12 week regular aerobic exercise on ST-segment and QTc interval in middle age type 2 diabetes mellitus (T2DM) patients. The subjects consist of 13 type 2 diabetes mellitus (T2DM) patients in middle age men and all of them had no other complications.Subjects participated in aerobic exercise training for 12 weeks. They started to exercise for 20～60 min at 60～80% of HRmax (exercise intensity has been increased gradually) per day, 3～5 times a week. The results were compared before and after. Weight and BMI, % body fat, fasting glucose, HOMA-IR, peakDBP were significantly decreased and peakHR, peakVO2, exercisre time were significantly increased after 12 week aerobic exercise. Also, QTc interval and ST-segment were significantly decreased during at rest, peak exercise after 12 week aerobic exercise. Conclusionally, 12 week aerobic exercise may be improvement in decreased cardiovascular mortality factors (ST-segment) and abnormal autonomic dysfunction (QTc interval) and potentially increased exercise capacity.

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"Recovery Only" ST-Segment Depression and the Predictive Accuracy of the Exercise Test

Cited by 91 publications

References 13 publications

Prognostic Value of Heart Rate Increase at Onset of Exercise Testing

Prognostic Value of Heart Rate Increase at Onset of Exercise Testing

The prognostic value of exercise testing in elderly men

Effects of 12 Week Regular Aerobic Exercise on ST-segment and QTc Interval in Type 2 Diabetes Mellitus Patients

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