Prognostic Value of Stress Myocardial Perfusion Imaging in Patients With Mildly Impaired Systolic Left Ventricular Function or Left Ventricular Asynergy Without Chest Pain but With Suspected Coronary Artery Disease(Clinical Investigation)
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概要
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Background The prognostic value of myocardial perfusion imaging (MPI) was investigated in patients with mildly impaired left ventricular (LV) function who had no chest pain but were suspected to have coronary artery disease (CAD). Methods and Results Consecutive patients (n=72, mean age=67) who had no chest pain but with mildly impaired systolic LV function (mean LV ejection fraction=52%) or LV asynergy and suspected to have CAD were followed up for 4.9 years after stress MPI. The follow-up time was censored at the occurrence of cardiac death, hospitalization for congestive heart failure (CHF), acute coronary syndromes (ACS), or revascularization. Images were scored using a 20-segment model and a 0-4 scale, and then the summed stress, rest, and difference scores (SDS) were calculated. During follow-up, there were 2 cases of cardiac death, 8 of hospitalization for CHF, 4 of ACS and 2 of revascularization. Cox regression demonstrated that SDS ≥4 was an excellent predictor of cardiac events in all patients (hazard ratio=4.2, p=0.01), and especially in diabetic patients (hazard ratio=28.4, p=0.01). Conclusion Stress MPI is useful for predicting cardiac events and may be performed in patients without chest pain if they have mildly impaired systolic LV function or LV asynergy.
- 社団法人日本循環器学会の論文
- 2006-05-20
著者
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MOROI MASAO
Division of Cardiovascular Medicine, Toho University, Ohashi Hospital
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Moroi Masao
Division Of Cardiovascular Medicine Toho University Ohashi Medical Center
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Moroi Masao
Division Of Cardiovascular Medicine Toho University Medical Center Ohashi Hospital
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Nakazato Ryo
Division of Cardiovascular Medicine, Toho University Ohashi Medical Center
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Nakazato Ryo
Division Of Cardiovascular Medicine Toho University Ohashi Medical Center
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