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- Eriksson, SV, et al.
(författare)
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Diastolic and systolic function as predictors of exercise capacity after myocardial infarction in young Men
- 1998
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Ingår i: Cardiology. - : S. Karger AG. - 0008-6312 .- 1421-9751. ; 90:1, s. 8-12
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Tidskriftsartikel (refereegranskat)abstract
- We evaluated the power of measurements of left ventricular (LV) systolic and diastolic function for predicting exercise capacity in 97 young male survivors of a myocardial infarction. The patients were evaluated with M-mode echocardiography, a symptom-limited exercise test and coronary and LV angiography. In univariate analyses, maximum exercise workload was most closely related to the atrial emptying index, an index of diastolic function (r = 0.37, p < 0.005), but not to LV ejection fraction (r = 0.001, NS). This relationship was stronger in the 42 patients without signs of ischemia during exercise (r = 0.51, p < 0.005). Multivariate analyses indicated that the atrial emptying index (p < 0.005) provided independent contribution to the prediction of maximum exercise capacity. LV diastolic function but not LV systolic function was related to exercise capacity in young survivors of myocardial infarction.
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- Brandrup-Wognsen, G, et al.
(författare)
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Predictors for recurrent chest pain and relationship to myocardial ischaemia during long-term follow-up after coronary artery bypass grafting
- 1997
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Ingår i: European Journal of Cardio-Thoracic Surgery. - : Elsevier BV. - 1010-7940 .- 1873-734X. ; 12:2, s. 304-311
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To describe the impact of coronary artery bypass grafting on chest pain during 2 years of follow-up after the operation and to identify predictors of chest pain and its relationship to myocardial ischaemia 2 years after the operation. Methods: Patients were approached with a questionnaire at the time of coronary angiography (1291) and 3 months (1664), 1 year (1638) and 2 years (1613) after coronary artery bypass grafting. Two years after the operation, a computerised 12-lead electrocardiogram was obtained during a standardised bicycle exercise test (618). Results: Prior to surgery, 37% of the patients were unable to perform physical activity compared with 6% after the operation (PB0.0001 for change in degree of limitation). Only 3% had no chest pain at all prior to the operation, while 58% of the patients were free from chest pain 2 years after surgery (PB0.0001). We found no correlation between patients reporting chest pain and signs of ischaemia at exercise test, but there was a highly significant correlation with chest pain during the exercise test (PB0.0001). Independent predictors of chest pain were severity of preoperative angina (PB0.0001), younger age (P 0.0009), previous coronary artery bypass grafting (P 0.003), duration of symptoms (P 0.005), the need for prolonged cardiopulmonary bypass (P 0.04) and the absence of left main stenosis (P 0.04). Conclusion: Independent predictors of chest pain were identified 2 years after coronary artery bypass grafting. There was a dramatic improvement after coronary artery bypass grafting. However, almost half the patients complained of some kind of chest pain even after the operation. This chest pain correlated well with chest pain during the exercise test but not with signs of myocardial ischaemia.
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- Edner, M, et al.
(författare)
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Long-term effects on cardiac output and peripheral resistance in patients treated with enalapril after acute myocardial infarction. CONSENSUS II Multi-Echo Study Group. Cooperative New Scandinavian Enalapril Survival Study
- 1998
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Ingår i: Cardiology. - : S. Karger AG. - 0008-6312 .- 1421-9751. ; 89:4, s. 291-296
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Tidskriftsartikel (refereegranskat)abstract
- In the Cooperative New Scandinavian Enalapril Survival Study (CONSENSUS II), in which enalapril treatment was initiated intravenously within 24 h after acute myocardial infarction, there was a neutral effect on 6-month mortality, whereas a beneficial effect on the progression of congestive heart failure was noted. We studied the effect of enalapril on left ventricular systolic function in terms of cardiac output and mean acceleration time measured by pulsed-wave Doppler in the left ventricular outflow tract and peripheral resistance. Early angiotensin-converting enzyme inhibition after acute myocardial infarction did not result in a general improvement of cardiac output. However, a small increase in cardiac output was observed in a subgroup of enalapril-treated patients with ejection fraction ≥45%, probably due to a reduction in peripheral resistance in these patients.
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