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Patient harm is a persistent and urgent healthcare concern that directly impacts the patient experience and overall outcomes. According to recent estimates,one in threehospitalized patients experiences preventable harm, and over400,000 individuals per yeardie from these injuries. As the third-leading cause of death, preventable harm costs health systems more than $1 billion annually.
As health systems seek ways to improvepatient safety, many organizations are looking to patient harm risk assessment tools that leverage machine learning. This article describes how machine learning powers better risk prediction tools, with the eventual goal of helping clinicians identify safety concerns before the patient harm occurs.
Previous risk prediction models were limited because they were developed using populations different from the populations for which the tools were being used. Another downside to these out-of-the-box models (such LACE, which predicts readmissions) is that they were often trained ondatathat was 15 to 20 years old. These generalized tools were also siloed in stand-alone prediction systems; for example, rather than an all-cause harm view of potential safety events, a risk assessment tool looked at only one event (e.g., hospital readmissions for patients with chronic obstructive pulmonary disease, or COPD).
Patients tend to be at risk for a variety of negative outcomes, so with a siloed risk assessment approach, clinicians miss opportunities to manage or prevent harm. The patient safety community has devised awhole patient measure of safety解决测量患者伤害时的竖井问题。同样的概念也应适用于风险预防。一个更好的、由机器学习驱动的患者安全工具使用健康系统数据来评估整个患者的风险,让临床医生全面了解哪些患者面临安全事件的风险,包括识别特定事件以及可调整的风险因素。
This new generation of machine learning-based patient safety tools will close the loop between information and action, as the software not only forecasts the likelihood of harm, but also the most important clinical actions to lower that patient’s risk, helping the clinician make an informed intervention decision. Clinicians will be able to predict harm before it occurs, know who in their patient population is at risk, understand which of the patient’s modifiable risk factors need to change, and be able to make timely interventions.
To successfully reduce rates of patient harm, today’s patient safety risk assessment tools must have five core capabilities:
The major differentiator between the new generation of machine learning safety surveillance and the retrospective tools they’re replacing is that the machine learning tools use data from that same health system to not only understand the risk factors leading to harm, but also to identify which patients currently receiving care are being harmed or about to be harmed. Machine learning capabilities help organizations get upstream of the risk before a patient is harmed or at risk of harm.
Eventually, predictive patient safety tools will advance the way organizations mitigate patient harm by recommending interventions for modifiable risk factors and documenting those interventions. The next goal is to integrate with cost management tools to attribute cost and recommend data-driven, cost effective interventions.
鉴于目前卫生系统中可预防的患者伤害发生率高得不可接受,改善患者安全是一项重要的卫生保健任务。机器学习将通过启用安全监测工具来推动解决方案,这些工具使用卫生系统数据来识别处于危险中的患者,识别患者可改变的风险因素和影响,并最终推荐最具成本效益的干预措施。
Healthcare’s best chance of improving patient safety and outcomes lies in predicting harm and taking action to prevent it. As Don Berwick, MD, MPP, president emeritus and senior fellow at the IHI, explained in his keynote address at the 2017 National Patient Safety Foundation Patient Safety Congress, healthcare has a lot of work to do to improve patient safety. “There’s an illusion that we’ve worked on safety,” Berwick said, and added that healthcare hasn’t developed real insight into patient harm and ways to prevent it. With a comprehensive, concurrent data-driven approach to patient harm, machine learning promises to transform patient safety from illusion to reality.
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