performance怎么理解？

Perioperative brain health, particularly in the ICU, is increasingly recognized as an important factor in postoperative recovery. Measures to decrease the incidence of delirium, for example, are being implemented in surgical ICUs around the world in order to decrease the associated morbidity and mortality. The most recent 2018 Society of Critical Care Medicine guidelines to manage pain, agitation, delirium, immobility, and sleep disturbances (PADIS) focus on patient-centered outcomes beyond mortality in the ICU [1]. The ICU Liberation Bundle, or the ABCDEF bundle, which stands for assess and manage pain, breathing trials and spontaneous awakening, choice of sedative, daily delirium monitoring, early mobility and family management and empowerment, is a multimodal approach that clearly benefits the patient, decreases delirium and improves patient comfort. Improved performance and adherence to the ABCDEF bundle results in significant improvements in patient-related, symptoms-related, and system-related outcomes including death, hospital discharge, and delirium [2,3 &&]. Mental illness is another aspect of brain health that has not been rigorously studied in the ICU. This review focuses on patient-centered care in the ICU, highlighting the latest research to promote brain health and psychological recovery during and after perioperative critical illness. Topics include sedation in the obese patient, delirium severity assessment, the role of the Psychiatry Consultation-Liaison in the ICU, postintensive care syndrome (PICS), and the importance of family engagement in the COVID era.

围术期的脑健康，特别是ICU的脑健康，越来越被认为是术后恢复的重要因素。例如世界各地的外科ICU都在实施降低谵妄发生率的措施，以降低相关的发病率和死亡率。最新的2018年重症医学会用于管理疼痛、躁动、谵妄、制动和睡眠障碍（PADIS）的指南更多的将关注重点放在以ICU患者为中心的结果，而不是死亡率。ICU解放集束化措施或称为ABCDEF集束化措施（代表了对疼痛、呼吸试验和自发觉醒、镇静剂的选择、日常谵妄的监测、早期活动以及家庭管理及家属参与的评估和管理）是一种多模式方法，这种方法显然对患者有利，可减少精神错乱，改善患者舒适度。改进的措施和对ABCDEF集束化措施的坚持可以显著改善患者相关、症状相关和系统相关的结果（包括死亡、出院和精神错乱）。精神疾病是大脑健康的另一个方面，但在ICU中没有得到足够的研究。这篇综述集中在ICU内以患者为中心的医疗措施，突出了在危重症的围术期和之后促进大脑健康和心理恢复的最新研究。主要包括了肥胖患者的镇静、精神错乱严重程度的评估、ICU中精神科会诊-交流的作用、重症监护后综合征（PICS）以及在COVID时代家庭参与的重要性。

performance怎么理解？