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PULSE-HF: A Simple Clinical and Geriatric Score to Predict Systolic Dysfunction in the Elderly Without Heart Failure
Rafael J Zamora1, Eduardo R Perna2, Lisandro Pereyra3
1Department of Medical Strategy, MEDICUS, Buenos Aires, Argentina; Department of Internal Medicine, Hospital Alemán, Buenos Aires, Argentina.
Insights
A new clinical score can predict early systolic dysfunction in elderly patients at risk for heart failure. This score identifies preclinical predictors, aiding in early intervention for asymptomatic individuals.
Area of Science:
- Cardiology
- Geriatrics
- Preventive Medicine
Background:
- Systolic dysfunction often precedes heart failure diagnosis.
- Early detection in at-risk elderly populations is crucial for intervention.
- Current methods may not identify preclinical stages effectively.
Purpose of the Study:
- To develop and validate a clinical prediction score for preclinical systolic dysfunction.
- Identify independent predictors of reduced left ventricular ejection fraction (LVEF) in at-risk elderly outpatients.
- Assess the score's accuracy in predicting asymptomatic systolic dysfunction.
Main Methods:
- Cross-sectional study (PULSE-HF) of 722 elderly outpatients at risk for heart failure.
- Clinical, geriatric, and biomarker (NT-proBNP) data collected.
- Logistic regression analysis to identify independent predictors of LVEF < 50%.
Main Results:
- 47 (6.5%) subjects had LVEF < 50%; 15 (2.1%) had LVEF < 40%.
- Independent predictors identified: abnormal Q waves, cardiomegaly, right bundle branch block, cognitive dysfunction, and NT-proBNP.
- Developed two scores (with/without NT-proBNP) with AUCs of 0.70 and 0.76, respectively.
Conclusions:
- A simple clinical score can predict asymptomatic systolic dysfunction in the elderly.
- The score demonstrates utility in identifying individuals at risk.
- Inclusion of NT-proBNP enhances predictive performance.
Abstract:
To develop a clinical score to determine preclinical predictors of systolic dysfunction in an outpatient elderly population without a diagnosis of heart failure (HF). PULSE-HF is a cross-sectional study in elderly at-risk (coronary artery disease, diabetes or hypertension) outpatients without a diagnosis of heart failure (HF). The objective in this population was to develop a clinical score to determine preclinical predictors of systolic dysfunction. Clinical and geriatric variables were analyzed; independent predictive factors in the logistic regression analysis were included for the score calculation. Of the 722 subjects enrolled, 47 (6.5%) had a left ventricular ejection fraction (LVEF) < 50%, and 15 (2.1%) a LVEF < 40%. Mean age was 76.5 years (5.18) and 445 (61.6%) were female. Multiple logistic regression analysis identified abnormal Q waves (odds ratio [OR]: 4.36; P = 0.003), cardiomegaly (OR: 3.32; P < 0.001), right bundle branch block (OR: 2.84; P = 0.011), cognitive dysfunction (OR: 2.14; P = 0.027) and NT-proBNP (OR 5.43; P < 0.001) as independent predictors of LVEF < 50%. Two prediction scores were built, without and with NT-proBNP inclusion; the area under ROC curves were 0.70 and 0.76, respectively. As the score increased, the sensitivity decreases but increases specificity, and accuracy (97.17% and 91.64% respectively in ≥6 points). NT-proBNP was associated with an increment in the performance (accuracy of 93.18% for score ≥10). We conclude that a simple score using clinical information might be useful to predicting asymptomatic systolic dysfunction in the elderly.
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