Novel Modification of Potassium Chloride Induced Cardiac Arrest Model for Aged Mice Liu Huaqin 1, 2 ;Yu Zhui 1, 3 ;Li Ying 1, 4 ;Xu Bin 1, 5 ;Yan Baihui 1, 6 ;Paschen Wulf 1 ;S. Warner David 1 ;Yang Wei 1 ;Sheng Huaxin 1 ; 1 The Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA ; 2 Department of Anesthesiology, The 4 th hospital of Hebei Medical University, Shijiazhuang, China ; 3 Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China ; 4 Department of Cardiology, The 5 th Hospital of Tianjin, Tianjin, China ; 5 Department of Environmental Health, China Medical University, Shenyang, China ; 6 Department of Anesthesiology, The Second Affiliated Hospital of Xi#cod#x02019;an Jiaotong University, Xi#cod#x02019;an, China ; Figure 3. Resuscitation time and #cod#x00025; survival over 72 h in young adult cardiac arrest mice subjected to 30 #cod#x000B5;l- or 50 #cod#x000B5;l KCl-induced cardiac arrest n=5group. A resuscitation time; B Survival rate. Squares represent individual mice. Horizontal bars represent mean#cod#x000B1;SD, #cod#x0002A; P#cod#x0003C;0.05 vs. 50 #cod#x000B5;l KCl group. null,null,0(0),null-null. Doi:10.14336/AD.2017.0221