老年人心血管疾病风险预测模型的预测性能:一个验证和更新研究
Shiva Ganjali1, Mojtaba Lotfaliany2, Andrew Tonkin3
1IMPACT-The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Faculty of Health, Deakin University, Geelong, Victoria, Australia s.ganjali@deakin.edu.au.
Heart (British Cardiac Society)
|May 14, 2025
概括
更新心血管疾病 (CVD) 风险模型可以提高老年人预测的准确性. 这些增强模型为老年人群提供了更好的风险评估,有助于预防性护理策略.
科学领域:
- 老年学是指老年学的学科.
- 心脏病学 心脏病学
- 流行病学 流行病学
背景情况:
- 现有的心血管疾病 (CVD) 风险预测模型对于老年人来说是不够的.
- 这项研究评估了澳大利亚和美国社区居住的老年人中既有模型和特定年龄的模型.
研究的目的:
- 验证,更新和评估老年人心血管疾病风险预测模型的临床实用性.
- 将现有模型的性能与针对老年人群的更新版本进行比较.
主要方法:
- 利用ASPREE临床试验及其随访的数据,包括15,618名没有先前心血管疾病,痴呆症或残疾的参与者.
- 使用歧视 (C统计),校准和临床实用性 (决策曲线) 评估模型性能.
- 通过调整系数更新模型并探索添加血清肌素,抑郁症和社会经济地位的影响.
主要成果:
- 更新后的模型显示,男性 (C-统计 0.62-0.64) 和女性 (0.68-0.69) 的歧视情况均有所改善.
- 更新后的模型显示了良好的校准,在各种风险值下增加了净收益.
- 结合额外的预测因素,如血清肌素,抑郁症和IRSAD,并没有提高更新模型的歧视性.
结论:
- 更新心血管疾病风险预测模型提高了对70岁以上相对健康的高加索老年人的准确性.
- 在临床广泛采用之前,需要在多样化,潜在脆弱或多病症老年人群中进行进一步的验证.
相关概念视频
01:23Assessment of the Cardiovascular System I: Subjective Data
244
A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
244
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
71
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
71
01:10Pre-Procedural Guidelines for Assessing Blood Pressure
515
Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
515
01:19Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
38
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
38
01:25Errors occurring during blood pressure monitoring
573
Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
Several factors...
Several factors...
573