Clark Kimmie, Leathers Taylor, Rotich Duncan, He Jianghua, Wirtz Katy, Daon Emmanuel, Flynn Brigid C
Medical Student, University of Kansas School of Medicine, Kansas, KS, USA.
Graduate Student, Department of Biostatistics, University of Kansas Medical Center, Kansas, KS, USA.
Crit Care Res Pract. 2018 Oct 23;2018:1538587. doi: 10.1155/2018/1538587. eCollection 2018.
Frailty has been associated with adverse outcomes following cardiac surgery. Gait speed has been validated as a marker of frailty. Slow gait speed has been found to be associated with mortality after cardiac surgery. However, it is unknown why slow gait speed predisposes to cardiac surgical mortality.
A retrospective analysis.
Patients undergoing cardiac surgery who had a 5-meter walk test performed preoperatively (n=333 of 1735 total surgical patients) from January 2013 to March 2017.
A tertiary care academic hospital.
Gait speeds were stratified by tertiles: <0.83 m/s, 0.83-1 m/s, and >1 m/s. There was no difference in the incidence of cardiogenic or vasogenic shock when comparing the gait speed groups. Total hospital length of stay was significantly different among the gait speed groups (=0.0050). Also, patients in the slowest gait speed tertile had a significant association with need for a postoperative permanent pacemaker (=0.0298).
There was no significant association between gait speed and the incidence of cardiogenic or vasogenic shock after cardiac surgery. Gait speed was associated with increased hospital length of stay and need for a permanent pacemaker after cardiac surgery.
衰弱与心脏手术后的不良结局相关。步速已被确认为衰弱的一个标志物。研究发现，步速缓慢与心脏手术后的死亡率相关。然而，尚不清楚为何步速缓慢会导致心脏手术死亡率升高。
一项回顾性分析。
2013年1月至2017年3月期间接受心脏手术且术前进行了5米步行测试的患者（在1735例手术患者中，共有333例）。
一家三级医疗学术医院。
步速按三分位数分层：<0.83米/秒、0.83 - 1米/秒和>1米/秒。比较步速组时，心源性或血管源性休克的发生率无差异。步速组之间的总住院时间存在显著差异（P = 0.0050）。此外，步速最慢的三分位组患者与术后需要永久性起搏器显著相关（P = 0.0298）。
心脏手术后步速与心源性或血管源性休克的发生率无显著关联。步速与心脏手术后住院时间延长及需要永久性起搏器相关。
