Yeonho You1, Jungsoo Park2, Jinhong Min1, Insool Yoo3, Wonjoon Jeong1, Yongchul Cho1, Seung Ryu1, Jinwoong Lee1, Seungwhan Kim3, Sunguk Cho1, Sekwang Oh1, Junwan Lee1, Hongjoon Ahn1, Byungkook Lee4, Donghun Lee4, Kiryang Na5, Yongnam In6, Chihwan Kwack6, Jaein Lee7. 1. Department of Emergency Medicine, Chungnam National University Hospital, 282, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea. 2. Department of Emergency Medicine, Chungnam National University Hospital, 282, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea; Department of Emergency Medicine, College of Medicine, Chungnam National University, 266, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea. Electronic address: cpcr@cnu.ac.kr. 3. Department of Emergency Medicine, Chungnam National University Hospital, 282, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea; Department of Emergency Medicine, College of Medicine, Chungnam National University, 266, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea. 4. Department of Emergency Medicine, Chonnam National University Hospital, 42 Jebong-ro, Donggu, Gwangju, Republic of Korea. 5. Division of Nephrology, Department of Internal Medicine, Chungnam National University Hospital, 282, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea. 6. Department of Emergency Medicine, Chungbuk National University Hospital, 776, Sunhwan-ro, Seowon-gu, Cheongju, Republic of Korea. 7. Department of Medicine, College of Medicine, Chungnam National University, 266, Munhwa-ro, Jung-gu, Daejeon, Republic of Korea.
Abstract
AIM: The optimal time to measure serum albumin concentration (SAC) to predict prognosis in cardiac arrest (CA) survivors has not been elucidated. We aimed to compare the relationships between time-related SAC, optic nerve sheath diameter (ONSD), intracranial pressure (ICP), and neurological prognosis in CA survivors. METHODS: We undertook a retrospective study examining CA patients treated with target temperature management (TTM). ICP was measured using cerebrospinal fluid (CSF) pressure and ONSD was obtained before TTM. SAC was measured repeatedly at 4-6 h intervals from the hospital arrival time. We analysed CSF pressure, ONSD, and minimum SAC (MSAC) separately, or in combination, to predict poor neurological outcome. RESULTS: Of 83 patients enrolled, the good outcome group comprised 25 (34%) patients. MSAC at 24 h (MSAC24) had a higher area under the receiver operating characteristic curve (AUC) (0.687; 95% confidence interval (CI), 0.668-0.926) than other time points. CSF pressure showed a higher AUC (0.973; 95% CI, 0.911-0.996) than MSAC24 and ONSD (0.677; 95% CI, 0.565-0.776). In contrast to using MSAC24 and ONSD separately, the combination of both modalities resulted in a better AUC, thus improving the prediction of the neurological outcome (0.734; 95% CI, 0.626-0.825) and ICP (0.758; 95% CI, 0.651-0.845) after return of spontaneous circulation (ROSC) from CA. CONCLUSION: A higher ICP was strongly associated with and seemed predictive of poor outcome. Furthermore, the MSAC24/ONSD combination may be a useful predictor of high ICP and poor neurological outcome. Prospective studies should be conducted to confirm these results.
AIM: The optimal time to measure serum albumin concentration (SAC) to predict prognosis in cardiac arrest (CA) survivors has not been elucidated. We aimed to compare the relationships between time-related SAC, optic nerve sheath diameter (ONSD), intracranial pressure (ICP), and neurological prognosis in CA survivors. METHODS: We undertook a retrospective study examining CA patients treated with target temperature management (TTM). ICP was measured using cerebrospinal fluid (CSF) pressure and ONSD was obtained before TTM. SAC was measured repeatedly at 4-6 h intervals from the hospital arrival time. We analysed CSF pressure, ONSD, and minimum SAC (MSAC) separately, or in combination, to predict poor neurological outcome. RESULTS: Of 83 patients enrolled, the good outcome group comprised 25 (34%) patients. MSAC at 24 h (MSAC24) had a higher area under the receiver operating characteristic curve (AUC) (0.687; 95% confidence interval (CI), 0.668-0.926) than other time points. CSF pressure showed a higher AUC (0.973; 95% CI, 0.911-0.996) than MSAC24 and ONSD (0.677; 95% CI, 0.565-0.776). In contrast to using MSAC24 and ONSD separately, the combination of both modalities resulted in a better AUC, thus improving the prediction of the neurological outcome (0.734; 95% CI, 0.626-0.825) and ICP (0.758; 95% CI, 0.651-0.845) after return of spontaneous circulation (ROSC) from CA. CONCLUSION: A higher ICP was strongly associated with and seemed predictive of poor outcome. Furthermore, the MSAC24/ONSD combination may be a useful predictor of high ICP and poor neurological outcome. Prospective studies should be conducted to confirm these results.
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