Advanced statistical methods for hazard modeling in cardiothoracic surgery: a comprehensive review of techniques and approaches.

IF 0.7 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS
H Shafeeq Ahmed
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引用次数: 0

Abstract

Hazard modeling in cardiothoracic surgery, crucial for understanding patient outcomes, utilizes survival analysis like the Cox proportional hazards model. Kaplan-Meier curves are employed in survival analysis to represent the probability of survival over time. While Cox assumes proportional hazards, the Fine-Gray model deals with competing risks. Parametric models (e.g., Weibull) specify survival distributions, unlike Cox. Bayesian analysis integrates prior knowledge with data. Machine learning, including decision trees and support vector machines, enhances risk prediction by analyzing extensive datasets. However, it is important to note that whatever new approaches one may adopt will enhance the quality of risk assessment and not the risk assessment as such. Preprocessing is vital for data quality in complex cardiovascular datasets, alongside robust validation methods like cross-validation for model reliability across patient cohorts.

心胸外科危险建模的高级统计方法:技术与方法综合评述。
心胸外科学中的危险模型是了解患者预后的关键,它利用了生存分析,如 Cox 比例危险模型。生存分析中使用 Kaplan-Meier 曲线来表示随时间推移的生存概率。考克斯假设的是比例危险,而费恩-格雷模型处理的是竞争风险。参数模型(如 Weibull)指定了生存分布,这与 Cox 不同。贝叶斯分析将先验知识与数据相结合。机器学习(包括决策树和支持向量机)通过分析大量数据集来增强风险预测。不过,需要注意的是,无论采用什么新方法,都只能提高风险评估的质量,而不能提高风险评估本身。预处理对于复杂心血管数据集的数据质量至关重要,同时还要采用稳健的验证方法(如交叉验证),以确保不同患者队列中模型的可靠性。
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来源期刊
Indian Journal of Thoracic and Cardiovascular Surgery
Indian Journal of Thoracic and Cardiovascular Surgery CARDIAC & CARDIOVASCULAR SYSTEMS-
CiteScore
1.20
自引率
14.30%
发文量
141
期刊介绍: The primary aim of the Indian Journal of Thoracic and Cardiovascular Surgery is education. The journal aims to dissipate current clinical practices and developments in the area of cardiovascular and thoracic surgery. This includes information on cardiovascular epidemiology, aetiopathogenesis, clinical manifestation etc. The journal accepts manuscripts from cardiovascular anaesthesia, cardiothoracic and vascular nursing and technology development and new/innovative products.The journal is the official publication of the Indian Association of Cardiovascular and Thoracic Surgeons which has a membership of over 1000 at present.DescriptionThe journal is the official organ of the Indian Association of Cardiovascular-Thoracic Surgeons. It was started in 1982 by Dr. Solomon Victor and ws being published twice a year up to 1996. From 2000 the editorial office moved to Delhi. From 2001 the journal was extended to quarterly and subsequently four issues annually have been printed out at time and regularly without fail. The journal receives manuscripts from members and non-members and cardiovascular surgeons. The manuscripts are peer reviewed by at least two or sometimes three or four reviewers who are on the panel. The manuscript process is now completely online. Funding the journal comes partially from the organization and from revenue generated by subscription and advertisement.
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