2015 Volume 35 Issue 5 Pages 571-578
The shock index (SI), defined as the ratio of heart rate to systolic blood pressure, is a simple marker for the situation in emergency patients. This study is presented to determine whether the SI is a useful marker for patients with endovascular repair of ruptured abdominal aortic aneurysms (rEVAR). In 33 patients, rEVARs were performed as an emergency in our institution between April 2012 and March 2015. The SI was calculated just before putting the patients under anesthetic. Intraoperative immediate technical success was obtained in all cases. Eight patients died in our hospital after rEVAR, and 6 of these 8 patients who died within 30 days after rEVAR were diagnosed as having abdominal compartment syndrome (ACS). The SI of the patients with ACS and without ACS were 1.66±0.12 and 1.02±0.08, respectively (p<0.01). The SIs in the dead and surviving cases were 1.57±0.20 and 1.08＋±0.09, respectively (p＜0.01). To avoid patients with a high SI score falling into ACS, careful preparation of the procedure for leak control during rEVAR and decompression of the abdomen after rEVAR are considered necessary. The SI is concluded to be a simple and useful marker in patients with rEVAR.
