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Predicting Risk in Patients Hospitalized for Acute Decompensated Heart Failure and Preserved Ejection Fraction
Circulation: Heart Failure ( IF 9.7 ) Pub Date : 2017-12-01 , DOI: 10.1161/circheartfailure.117.003992
Tonje Thorvaldsen 1 , Brian L. Claggett 1 , Amil Shah 1 , Susan Cheng 1 , Sunil K. Agarwal 1 , Lisa M. Wruck 1 , Patricia P. Chang 1 , Wayne D. Rosamond 1 , Eldrin F. Lewis 1 , Akshay S. Desai 1 , Lars H. Lund 1 , Scott D. Solomon 1
Affiliation  

Background Risk-prediction models specifically for hospitalized heart failure with preserved ejection fraction are lacking.
Methods and Results We analyzed data from the ARIC (Atherosclerosis Risk in Communities) Study Heart Failure Community Surveillance to create and validate a risk score predicting mortality in patients ≥55 years of age admitted with acute decompensated heart failure with preserved ejection fraction (ejection fraction ≥50%). A modified version of the risk-prediction model for acute heart failure developed from patients in the EFFECT (Enhanced Feedback for Effective Cardiac Treatment) study was used as a composite predictor of 28-day and 1-year mortalities and evaluated together with other potential predictors in a stepwise logistic regression. The derivation sample consisted of 1852 hospitalizations from 2005 to 2011 (mean age, 77 years; 65% women; 74% white). Risk scores were created from the identified predictors and validated in hospitalizations from 2012 to 2013 (n=821). Mortality in the derivation and validation sample was 11% and 8% at 28 days and 34% and 31% at 1 year. The modified EFFECT score, including age, systolic blood pressure, blood urea nitrogen, sodium, cerebrovascular disease, chronic obstructive pulmonary disease, and hemoglobin, was a powerful predictor of mortality. Another important predictor for both 28-day and 1-year mortalities was hypoxia. The risk scores were well calibrated and had good discrimination in the derivation sample (area under the curve: 0.76 for 28-day and 0.72 for 1-year mortalities) and validation sample (area under the curve: 0.73 and 0.71, respectively).
Conclusions Mortality after acute decompensation in patients with heart failure with preserved ejection fraction is high, with one third of patients dying within a year. A prediction tool may allow for greater discrimination of the highest risk patients.Clinical Trial Registration: URL: https://www.clinicaltrials.gov. Unique identifier: NCT00005131


中文翻译:

预测因急性代偿性心力衰竭和射血分数保留而住院的患者的风险

背景技术缺乏专门针对住院心力衰竭且射血分数保持不变的风险预测模型。
方法与结果我们分析了ARIC(社区动脉粥样硬化风险)研究心力衰竭社区监测的数据,以创建并验证风险评分,该风险评分可预测≥55岁的急性失代偿性心力衰竭并保留射血分数(射血分数≥50%)的患者的死亡率。根据EFFECT(有效心脏治疗的增强反馈)研究中的患者开发的急性心力衰竭风险预测模型的修订版,被用作28天和1年死亡率的综合预测因子,并与其他潜在预测因子一起进行了评估在逐步逻辑回归中。衍生样本包括2005年至2011年的1852例住院治疗(平均年龄77岁; 65%的女性; 74%的白人)。根据已确定的预测指标创建风险评分,并在2012年至2013年的住院期间对其进行验证(n = 821)。衍生和验证样本中的死亡率在28天时分别为11%和8%,在1年时分别为34%和31%。修改后的EFFECT评分,包括年龄,收缩压,血尿素氮,钠,脑血管疾病,慢性阻塞性肺疾病和血红蛋白,是死亡率的有力预测指标。缺氧是28天和1年死亡率的另一个重要预测因子。在衍生样本(曲线下面积:28天为0.76,一年死亡率为0.72)和验证样本(曲线下面积:分别为0.73和0.71)中,风险分数得到了很好的校准并具有良好的判别力。衍生和验证样本中的死亡率在28天时分别为11%和8%,在1年时分别为34%和31%。修改后的EFFECT评分,包括年龄,收缩压,血尿素氮,钠,脑血管疾病,慢性阻塞性肺疾病和血红蛋白,是死亡率的有力预测指标。缺氧是28天和1年死亡率的另一个重要预测因子。在衍生样本(曲线下面积:28天为0.76,一年死亡率为0.72)和验证样本(曲线下面积:分别为0.73和0.71)中,风险分数得到了很好的校准并具有良好的判别力。衍生和验证样本中的死亡率在28天时分别为11%和8%,在1年时分别为34%和31%。修改后的EFFECT评分,包括年龄,收缩压,血尿素氮,钠,脑血管疾病,慢性阻塞性肺疾病和血红蛋白,是死亡率的有力预测指标。缺氧是28天和1年死亡率的另一个重要预测因子。在衍生样本(曲线下面积:28天为0.76,一年死亡率为0.72)和验证样本(曲线下面积:分别为0.73和0.71)中,风险分数得到了很好的校准并具有良好的判别力。缺氧是28天和1年死亡率的另一个重要预测因子。在衍生样本(曲线下面积:28天为0.76,一年死亡率为0.72)和验证样本(曲线下面积:分别为0.73和0.71)中,风险分数得到了很好的校准并具有良好的判别力。缺氧是28天和1年死亡率的另一个重要预测因子。在衍生样本(曲线下面积:28天为0.76,一年死亡率为0.72)和验证样本(曲线下面积:分别为0.73和0.71)中,风险分数得到了很好的校准并具有良好的判别力。
结论保留射血分数的心力衰竭患者急性失代偿后死亡率较高,三分之一的患者在一年内死亡。预测工具可以更好地区分最高风险的患者。临床试验注册:URL:https : //www.clinicaltrials.gov。唯一标识符:NCT00005131
更新日期:2017-12-20
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