نتایج جستجو برای: survival fraction
تعداد نتایج: 475828 فیلتر نتایج به سال:
BACKGROUND In the main analysis of the Canadian Continuous Positive Airway Pressure (CPAP) for Patients with Central Sleep Apnea (CSA) and Heart Failure Trial (CANPAP), CPAP had no effect on heart transplant-free survival; however, CPAP only reduced the mean apnea-hypopnea index to 19 events per hour of sleep, which remained above the trial inclusion threshold of 15. This stratified analysis of...
OBJECTIVE To study the pre-operative level of left ventricular ejection fraction that may be indicative of an increased risk of early and late mortality and of recurrent angina pectoris and late non-fatal myocardial infarction. MATERIAL AND METHODS A total of 934 patients with known left ventricular ejection fraction, 80 women and 854 men, were submitted to coronary artery bypass grafting at ...
BACKGROUND AND AIMS The volume of tree stems is made up of three components: solid wood, gas and water. These components have important consequences for the construction costs, strength and stability of trees. Here, the importance of stem components for sapling growth and survival in the field was investigated, and then these stem components were related to two important life history axes of va...
AIMS To investigate whether changes in clinical characteristics and treatment strategies between 1991 and 2001 have had an impact on the survival of patients hospitalized with congestive heart failure (CHF) and whether those with normal left ventricular ejection fraction (LVEF> or =50%) differ in this respect from those with depressed LVEF. METHODS AND RESULTS We studied 1482 patients who had...
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