The implications of a fragmented QRS complex and newly reclassified revised cardiac risk index including fragmented QRS in patients undergoing non-cardiac vascular surgery

cardiac risk index including fragmented QRS in patients undergoing non-cardiac vascular surgery Myung Hwan Bae , Won Suk Choi , Kyun Hee Kim , Sun Hee Park , Hae Won Kim , Jang Hoon Lee , Sang-Woo Lee , Dong Heon Yang ⁎, Hun Sik Park , Yongkeun Cho , Shung Chull Chae , Jae-Eun Jun a a Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea b Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea