Graphical CV Display for Hemodynamic Monitoring

描述（由申请人提供）：危重患者经常发生不良生理事件，往往导致灾难性的后果。监测显示的技术改进有可能通过让护士更好地可视化患者的血液动力学状态来提高护理绩效和患者预后。本研究将探讨图形显示技术在重症监护环境中的应用。目的是确定一种新的血流动力学监测图形显示是否能提高重症监护护士检测、识别和处理危重患者不良生理事件的能力。生物工程和人为因素研究表明，用图形表示复杂信息比用波形或数字表示更直观。这项研究的第一阶段将包括改造最初设计用于手术室的心血管图形显示器。显示适应重症护理将是一个迭代的过程，由一个既定的设计改进协议指导。第二阶段将评估这种展示对重症护理护士检测血液动力学状态变化、正确识别不良生理事件和启动适当护理干预的能力的影响。使用全尺寸的病人模拟器，使用适应性图形显示的护士的表现和认知工作量将与使用传统监测显示的护士进行比较。

DESCRIPTION (provided by applicant): Adverse physiological events occur frequently in critically ill patients and often lead to catastrophic outcomes. Technological improvements in monitoring displays have the potential to enhance nursing performance and patient outcomes by allowing nurses to better visualize the hemodynamic status of their patients. This study will explore the application of graphical display technology in the critical care environment. The goal is to determine whether a new graphical display for hemodynamic monitoring improves critical care nurses' ability to detect, identify, and manage adverse physiological events in critically ill patients. Bioengineering and human factors research suggests that presenting complex information graphically is more intuitive than waveform or numerical representation. Phase 1 of this research will involve adapting a graphical cardiovascular display that was originally designed for use in operating rooms. Display adaptation to critical care nursing will be an iterative process, guided by an established design refinement protocol. Phase 2 will evaluate the effects of this display on critical care nurses' ability to detect changes in hemodynamic status, correctly identify adverse physiologic events, and initiate appropriate nursing interventions. Using a full-scale patient simulator, performance and cognitive workload for nurses using the adapted graphical display will be compared to those using a traditional monitoring display.