• Minjung Kathy Chae, Eunsil Ko, Jeong Hoon Lee, Tae Rim Lee, Hee Yoon, Sung Yeon Hwang, Won Chul Cha, Tae Gun Shin, Min Seob Sim, Ik Joon Jo, Keun Jeong Song, Joong Eui Rhee, and Yeon Kwon Jeong.
• Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
• Resuscitation. 2016 Jul 1; 104: 40-5.

AimWe aimed to evaluate the prognostic value of optic nerve sheath diameter (ONSD) and grey-to-white matter (GWR) either alone or in combination in patients treated with targeted temperature management (TTM) after cardiac arrest (CA).MethodsWe conducted a retrospective single centre study of post cardiac arrest patients treated with TTM. ONSD and GWR on brain computed tomography (CT) was measured by two emergency physicians. We analysed the prognostic performance and cut offs of GWR and ONSD, singly and in combination in predicting poor neurologic outcome (CPC 3-5).ResultsOf the 119 patients studied, 74 patients showed poor outcome. The combination of ONSD and GWR significantly (p=0.002) improved prognostic performance (AUROC 0.67, 95% CI: 0.58-0.76, p<0.001) in predicting poor neurologic outcomes rather than each ONSD (AUROC 0.59, 95% CI: 0.50-0.68, p=0.08) or GWR (AUROC 0.65, 95% CI: 0.56-0.74, p=0.002) alone. A combined cut off of 'GWR and ONSD (1.16 and 4.9)' and 'GWR or ONSD (1.13 or 6.5)' improved the sensitivity for predicting poor outcome while maintaining high specificity compared to GWR alone.ConclusionThe combination of ONSD and GWR yielded improved prognostic value for predicting poor neurologic outcomes in post cardiac arrest patients treated with TTM.Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

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