Relation of daily activity levels in patients with chronic heart failure to long-term prognosis
Relation of daily activity levels in patients with chronic heart failure to long-term prognosis
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DOI:
10.1016/s0002-9149(97)00141-0
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发表时间:
1997-05-15
影响因子:
2.8
通讯作者:
Cowley, AJ
中科院分区:
文献类型:
--
作者:
Walsh, JT;Charlesworth, A;Cowley, AJ
Symptom-limited, laboratory-based exercise tests are often used to define prognosis in patients with chronic heart failure, but they do not relate to measures of normal daily activity. Invasive measures of central hemodynamics similarly relate poorly to outcome. Pedometer scores of weekly walking are markedly reduced in patients with heart failure, but whether this less artificial measure of exercise capacity is important in predicting prognosis is not known. Eighty-four patients with chronic heart failure were followed for a mean of 710 days during which 44 died and 3 underwent cardiac transplantation. Symptom-limited treadmill exercise capacity using 2 different protocols did not predict survival, whereas reduced weekly pedometer scores were strong predictors of death (p