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Nishimura T, Hatakeyama T, Yoshida H, Yoshimura S, Kiguchi T, Irisawa T, Yamada T, Yoshiya K, Park C, Ishibe T, Yagi Y, Kishimoto M, Kim SH, Hayashi Y, Ito Y, Sogabe T, Morooka T, Sakamoto H, Suzuki K, Nakamura F, Matsuyama T, Okada Y, Nishioka N, Matsui S, Kimata S, Kawai S, Makino Y, Kitamura T, Iwami T, Mizobata Y. Non-linear association between the time required to reaching temperature targets and the neurological outcome in patients undergoing targeted temperature management after out-of-hospital cardiac arrest: Observational multicentre cohort study. Resusc Plus 2024; 18:100607. [PMID: 38586179 PMCID: PMC10995978 DOI: 10.1016/j.resplu.2024.100607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 04/09/2024] Open
Abstract
Purpose We evaluated associations between outcomes and time to achieving temperature targets during targeted temperature management of out-of-hospital cardiac arrest. Methods Using Comprehensive Registry of Intensive Care for out-of-hospital cardiac arrest Survival (CRITICAL) study, we enrolled all patients transported to participating hospitals from 1 July 2012 through 31 December 2017 aged ≥ 18 years with out-of-hospital cardiac arrest of cardiac aetiology and who received targeted temperature management in Osaka, Japan. Primary outcome was Cerebral Performance Category scale of 1 or 2 one month after cardiac arrest, designated as "one-month favourable neurological outcome". Non-linear multivariable logistic regression analyses assessed the primary outcome based on time to reaching temperature targets. In patients subdivided into quintiles based on time to achieving temperature targets, multivariable logistic regression calculated adjusted odds ratios and 95% confidence intervals. Results We analysed 473 patients. In non-linear multivariable logistic regression analysis, p value for non-linearity was < 0.01. In the first quintile (< 26.7 minutes), second quintile (26.8-89.9 minutes), third quintile (90.0-175.1 minutes), fourth quintile (175.2-352.1 minutes), and fifth quintile (≥ 352.2 minutes), one-month favourable neurological outcome was 32.6% (31/95), 40.0% (36/90), 53.5% (53/99), 57.4% (54/94), and 37.9% (36/95), respectively. Adjusted odds ratios with 95% confidence intervals for one-month favourable neurological outcome in the first, second, third, and fifth quintiles compared with the fourth quintile were 0.38 (0.20 to 0.72), 0.43 (0.23 to 0.81), 0.77 (0.41 to 1.44), and 0.46 (0.25 to 0.87), respectively. Conclusion Non-linear multivariable logistic regression analysis could clearly describe the association between neurological outcome in patients with out-of-hospital cardiac arrest and the time from the introduction of targeted temperature management to reaching the temperature targets.
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Affiliation(s)
- Tetsuro Nishimura
- Department of Traumatology and Critical Care Medicine, Osaka Metropolitan University, 1–4–3 Asahimachi, Abeno-ku, Osaka 545–8585, Japan
| | - Toshihiro Hatakeyama
- Department of Emergency and Critical Care Medicine, Dokkyo Medical University Saitama Medical Center, 2–1–50 Minami-Koshigaya, Koshigaya, Saitama 343–8555, Japan
- SimTiki Simulation Center, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo Street, Medical Education Building, Suite 212, Honolulu, HI 96813, United States
| | - Hisako Yoshida
- Department of Medical Statistics, Osaka Metropolitan University, 1–4–3 Asahimachi, Abeno-ku, Osaka 545–8585, Japan
| | - Satoshi Yoshimura
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
| | - Takeyuki Kiguchi
- Department of Critical Care and Trauma Center, Osaka General Medical Center, 3–1–56 Bandai-Higashi, Sumiyoshi-ku, Osaka 558–8558, Japan
| | - Taro Irisawa
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, 2–2 Yamadaoka, Suita, Osaka 565–0871, Japan
| | - Tomoki Yamada
- Emergency and Critical Care Medical Center, Osaka Police Hospital, 10–31, Kitayamacho, Tennoji-ku, Osaka 543–0035, Japan
| | - Kazuhisa Yoshiya
- Department of Emergency and Critical Care Medicine, Kansai Medical University General Medical Center, 10–15 Fumizono-cho, Moriguchi, Osaka 570–8507, Japan
| | - Changhwi Park
- Department of Emergency Medicine, Tane General Hospital, 1–12–21, Kujyominami, Nishi-ku, Osaka 550–0025, Japan
| | - Takuya Ishibe
- Department of Emergency and Critical Care Medicine, Kindai University Faculty of Medicine, 377–2, Ohnohigashi, Osaka-Sayama, Osaka 589–8511, Japan
| | - Yoshiki Yagi
- Osaka Mishima Emergency and Critical Care Center, 11–1, Minamiakutagawa-cho, Takatsuki, Osaka 569–1124, Japan
| | - Masafumi Kishimoto
- Osaka Prefectural Nakakawachi Emergency and Critical Care Center, 3–4–13, Nishiiwata, Higashiosaka, Osaka 578–0947, Japan
| | - Sung-Ho Kim
- Senshu Trauma and Critical Care Center, 2–23, Rinkuoraikita, Izumisano, Osaka 598–8577, Japan
| | - Yasuyuki Hayashi
- Senri Critical Care Medical Center, Saiseikaisenri Hospital, 1–1–6, Tsukumodai, Suita, Osaka 565–0862, Japan
| | - Yusuke Ito
- Senri Critical Care Medical Center, Saiseikaisenri Hospital, 1–1–6, Tsukumodai, Suita, Osaka 565–0862, Japan
| | - Taku Sogabe
- Traumatology and Critical Care Medical Center, National Hospital Organization Osaka National Hospital, 1–1–6, Tsukumodai, Suita, Osaka 565–0862, Japan
| | - Takaya Morooka
- Emergency and Critical Care Medical Center, Osaka City General Hospital, 2–13–22, Miyakojima-hondori, Miyakojima-ku, Osaka 534–0021, Japan
| | - Haruko Sakamoto
- Department of Pediatrics, Osaka Red Cross Hospital, 5–30 Fudegasakicho, Tennoji-ku, Osaka 543–8555, Japan
| | - Keitaro Suzuki
- Emergency and Critical Care Medical Center, Kishiwada Tokushukai Hospital, 4–27–1 Kamoricho, Kishiwada, Osaka 596–8522, Japan
| | - Fumiko Nakamura
- Department of Emergency and Critical Care Medicine, Kansai Medical University General Medical Center, 10–15 Fumizono-cho, Moriguchi, Osaka 570–8507, Japan
| | - Tasuku Matsuyama
- Department of Emergency Medicine, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602–8566, Japan
| | - Yohei Okada
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
- Health Services and Systems Research, Duke-NUS Medical School, National University of Singapore, 8 College Road, Singapore 169857, Singapore
| | - Norihiro Nishioka
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
| | - Satoshi Matsui
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2–2 Yamadaoka, Suita, Osaka 565–0871, Japan
| | - Shunsuke Kimata
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
| | - Shunsuke Kawai
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
| | - Yuto Makino
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
| | - Tetsuhisa Kitamura
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2–2 Yamadaoka, Suita, Osaka 565–0871, Japan
| | - Taku Iwami
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoemachi, Sakyo-ku, Kyoto 606–8501, Japan
| | - Yasumitsu Mizobata
- Department of Traumatology and Critical Care Medicine, Osaka Metropolitan University, 1–4–3 Asahimachi, Abeno-ku, Osaka 545–8585, Japan
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Wang IT, Wang CJ, Chen CH, Yang SH, Chen CY, Huang YC, Lin CY, Wu CL. Optimal Timing of Targeted Temperature Management for Post-Cardiac Arrest Syndrome: Is Sooner Better? J Clin Med 2023; 12:jcm12072628. [PMID: 37048710 PMCID: PMC10095041 DOI: 10.3390/jcm12072628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Targeted temperature management (TTM) is often considered to improve post-cardiac arrest patients’ outcomes. However, the optimal timing to initiate cooling remained uncertain. This retrospective analysis enrolled all non-traumatic post-cardiac arrest adult patients with either out-of-hospital cardiac arrest (OHCA) or in-hospital cardiac arrest (IHCA) who received TTM from July 2015 to July 2021 at our hospital. The values of time delay before TTM and time to target temperature were divided into three periods according to optimal cut-off values identified using receiver operating characteristic curve analysis. A total of 177 patients were enrolled. A shorter time delay before TTM (pre-induction time) was associated with a lower survival chance at 28 days (32.00% vs. 54.00%, p = 0.0279). Patients with a longer cooling induction time (>440 minis) had better neurological outcomes (1.58% vs. 1.05%; p = 0.001) and survival at 28 days (58.06% vs. 29.25%; p = 0.006). After COX regression analysis, the influence of pre-induction time on survival became insignificant, but patients who cooled slowest still had a better chance of survival at 28 days. In conclusion, a shorter delay before TTM was not associated with better clinical outcomes. However, patients who took longer to reach the target temperature had better hospital survival and neurological outcomes than those who were cooled more rapidly. A further prospective study was warranted to evaluate the appropriate time window of TTM.
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Affiliation(s)
- I-Ting Wang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
- Department of Critical Care Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
- Department of Medicine, MacKay Memorial College, New Taipei City 25245, Taiwan
| | - Chieh-Jen Wang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
- Department of Medicine, MacKay Memorial College, New Taipei City 25245, Taiwan
- Correspondence: ; Tel.: +886-2-28094661 (ext. 2331)
| | - Chao-Hsien Chen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
- Department of Medicine, MacKay Memorial College, New Taipei City 25245, Taiwan
| | - Sheng-Hsiung Yang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
- Ph.D. Program in Translational Medicine, National Taiwan University and Academia Sinica, Taipei 11529, Taiwan
| | - Chun-Yen Chen
- Division of Cardiology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
| | - Yen-Chun Huang
- Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Artificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Chang-Yi Lin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
- Department of Medicine, MacKay Memorial College, New Taipei City 25245, Taiwan
| | - Chien-Liang Wu
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan
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Thermal Index for early non-invasive assessment of brain injury in newborns treated with therapeutic hypothermia: preliminary report. Sci Rep 2021; 11:12578. [PMID: 34131269 PMCID: PMC8206354 DOI: 10.1038/s41598-021-92139-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/27/2021] [Indexed: 12/02/2022] Open
Abstract
Perinatal asphyxia (PA) is the 3rd most common cause of neonatal death and one of the most common causes of severe neurological impairments in children. Current tools and measurements mainly based on the analysis of clinical evaluation and laboratory and electrophysiological tests do not give consistent data allowing to predict the severity of hypoxic-ischemic encephalopathy (HIE) until a magnetic resonance imaging (MRI) score is performed. The aim of this work is to evaluate the usefulness of the new index, called Thermal Index (TI) in the assessment of the degree of brain damage in newborns in the course of therapeutic hypothermia (TH) due to PA. This was a prospective, observational, pilot study which did not require any changes in the applicable procedures. Analysis has been applied to six newborn babies treated with TH in Neonatal/Paediatric ICU in University Hospital in Opole in 2018 due to PA. They all met criteria for TH according to the current recommendations. Brain MRI was performed after the end of TH when the children were brought back to normal temperature, with the use of a 1.5 T scanner, using T1-, T2-weighted images, fluid-attenuated inversion recovery (FLAIR), inversion recovery (IR), susceptibility-weighted imaging (SWI), and diffusion-weighted imaging (DWI). The images were assessed using MRI score according to the scoring system proposed by Weeke et al. The Thermal Index assessing endogenous heat production was calculated according to the formula proposed in this paper. A high, statistically significant positive correlation was found between MRI scores and TI values (0.98; p = 0.0003) in the 1st hour of therapy. High correlation with MRI assessment, the non-invasiveness of measurements and the availability of results within the first few hours of treatment, allow authors to propose the Thermal Index as a tool for early evaluating of the brain injury in newborns treated with TH. Further research is required to confirm the usefulness of the proposed method.
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Wang J, Shi L, Xu J, Zhou W, Zhang M, Wu C, Chen Q, Jin X, Zhang J. Fast hypothermia induced by extracorporeal circuit cooling alleviates renal and intestinal injury after cardiac arrest in swine. Am J Emerg Med 2021; 47:231-238. [PMID: 33932856 DOI: 10.1016/j.ajem.2021.04.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/12/2021] [Accepted: 04/19/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Continuous renal replacement therapy (CRRT) was currently demonstrated to be an effective way to induce fast hypothermia and had proective effects on cardiac dysfunction and brain damage after cardiac pulmonary resuscitation (CPR). In the present study, we aimed to investigate the influence of extracorporeal circuit cooling using CRRT on renal and intestinal damage after CPR based on a porcine model. METHODS 32 pigs were subjected to ventricular fibrillation for 8 min, followed by CPR for 5 min before defibrillation. All were randomized to receive extracorporeal circuit cooling using CRRT (CRRT, n = 9), surface cooling (SC, n = 9), normothermia (NT, n = 9) or sham control (n = 5) at 5 min post resuscitation. Pigs in the CRRT group were cooled by 8-h CRRT cooling with the infusion line initially submerged in 4 °C of ice water and 16-h SC, while in the SC group by a 24-h SC. Temperatures were maintained at a normal range in the other two groups. Biomarkers in serum were measured at baseline and 1, 3, 6, 12, 24 and 30 h post resuscitation to assess organ functions. Additionally, tissues of kidney and intestine were harvested, from which the degree of tissue inflammation, oxidative stress, and apoptosis levels were analyzed. RESULTS The blood temperature decreased faster by extracorporeal circuit cooling using CRRT than SC (9.8 ± 1.6 vs. 1.5 ± 0.4 °C/h, P < 0.01). Post-resuscitation renal and intestinal injury were significantly improved in the 2 hypothermic groups compared to the NT group. And the improvement was significantly greater in animals received extracorporeal circuit cooling than those received surface cooling, from both the results of biomarkers in serum and pathological evidence. CONCLUSION Fast hypothermia induced by extracorporeal circuit cooling was superior to. surface cooling in mitigating renal and intestinal injury post resuscitation.
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Affiliation(s)
- Jiangang Wang
- Hangzhou Emergency Medical Center of Zhejiang Province, Zhejiang, Hangzhou, China
| | - Lin Shi
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou, China; Institute of Emergency Medicine, Zhejiang University, Zhejiang, Hangzhou, China.
| | - Jiefeng Xu
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou, China; Institute of Emergency Medicine, Zhejiang University, Zhejiang, Hangzhou, China.
| | - Wen Zhou
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou, China; Institute of Emergency Medicine, Zhejiang University, Zhejiang, Hangzhou, China
| | - Mao Zhang
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou, China; Institute of Emergency Medicine, Zhejiang University, Zhejiang, Hangzhou, China.
| | - Chunshuang Wu
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, Hangzhou, China; Institute of Emergency Medicine, Zhejiang University, Zhejiang, Hangzhou, China
| | - Qijiang Chen
- Department of Intensive Care Medicine, The First Hospital of Ninghai, Zhejiang, Ningbo, China
| | - Xiaohong Jin
- Department of Emergency Medicine, The First People's Hospital of Wenling, Zhejiang, Taizhou, China
| | - Jungen Zhang
- Hangzhou Emergency Medical Center of Zhejiang Province, Zhejiang, Hangzhou, China.
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Walas W, Bandoła D, Ostrowski Z, Rojczyk M, Mączko A, Halaba Z, Nowak AJ. Theoretical basis for the use of non-invasive thermal measurements to assess the brain injury in newborns undergoing therapeutic hypothermia. Sci Rep 2020; 10:22167. [PMID: 33335145 PMCID: PMC7747633 DOI: 10.1038/s41598-020-79009-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 11/30/2020] [Indexed: 11/09/2022] Open
Abstract
The aim of this paper is to propose a new non-invasive methodology to estimate thermogenesis in newborns with perinatal asphyxia (PA) undergoing therapeutic hypothermia (TH). Metabolic heat production (with respect to either a neonate’s body mass or its body surface) is calculated from the newborn’s heat balance, estimating all remaining terms of this heat balance utilising results of only non-invasive thermal measurements. The measurement devices work with standard equipment used for therapeutic hypothermia and are equipped with the Global System for Mobile Communications (GSM), which allows one to record and monitor the course of the therapy remotely (using an internet browser) without disturbing the medical personnel. This methodology allows one to estimate thermogenesis in newborns with perinatal asphyxia undergoing therapeutic hypothermia. It also offers information about instantaneous values of the rate of cooling together with values of remaining rates of heat transfer. It also shows the trend of any changes, which are recorded during treatment. Having information about all components of the heat balance one is able to facilitate comparison of results obtained for different patients, in whom these components may differ. The proposed method can be a new tool for measuring heat balance with the possibility of offering better predictions regarding short-term neurologic outcomes and tailored management in newborns treated by TH.
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Affiliation(s)
- Wojciech Walas
- Paediatric and Neonatal Intensive Care Unit, University Clinical Hospital, Opole, Poland.,Institute of Medical Sciences, University of Opole, Opole, Poland
| | - Dominika Bandoła
- Department of Thermal Technology, Silesian University of Technology, Gliwice, Poland
| | - Ziemowit Ostrowski
- Department of Thermal Technology, Silesian University of Technology, Gliwice, Poland
| | - Marek Rojczyk
- Department of Thermal Technology, Silesian University of Technology, Gliwice, Poland
| | - Anna Mączko
- Paediatric and Neonatal Intensive Care Unit, University Clinical Hospital, Opole, Poland
| | - Zenon Halaba
- Department of Paediatrics, Institute of Medical Sciences, University of Opole, Opole, Poland
| | - Andrzej J Nowak
- Department of Thermal Technology, Silesian University of Technology, Gliwice, Poland.
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Early Initiation of Continuous Renal Replacement Therapy Induces Fast Hypothermia and Improves Post-Cardiac Arrest Syndrome in a Porcine Model. Shock 2020; 52:456-467. [PMID: 30335673 DOI: 10.1097/shk.0000000000001276] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Rapid induction of hypothermia early after resuscitation can be an effective strategy against post-cardiac arrest syndrome (PCAS). Preliminary data suggested that continuous renal replacement therapy (CRRT) might be an efficient method to rapidly induce hypothermia. In this study, we investigated the efficacy of cooling induced by CRRT and its effects on the outcomes of PCAS in a porcine model.Thirty-two male domestic pigs weighing 36 ± 2 kg were randomized into 4 groups: sham control (n = 5), normothermia (n = 9), surface cooling (SC, n = 9), and CRRT (n = 9). Sham animals underwent the surgical preparation only. The animal model was established by 8 min of untreated ventricular fibrillation and then 5 min of cardiopulmonary resuscitation. At 5 min after resuscitation, the animals were cooled by either the combination of an earlier 8-h CRRT and later 16-h SC or the whole 24-h SC in the 2 hypothermic groups. For the other 2 groups, a normal temperature of 38.0 ± 0.5°C was maintained throughout the experiment.Blood temperature was decreased to 33°C within 28 min in animals treated with CRRT, which was significantly faster than that in the SC group requiring 185 min to achieve target temperature. Post-resuscitation myocardial dysfunction, brain injury, and systemic inflammation were significantly improved in the 2 hypothermic groups compared to the normothermia group. However, the improvement was significantly greater in the CRRT group than in the SC group.In conclusion, fast hypothermia was successfully induced by CRRT and significantly alleviated the severity of PCAS in a porcine model.
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Refractory Ventricular Fibrillation Treated with Double Simultaneous Defibrillation: Pilot Study. Emerg Med Int 2020; 2020:5470912. [PMID: 32566304 PMCID: PMC7273448 DOI: 10.1155/2020/5470912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/21/2020] [Accepted: 05/04/2020] [Indexed: 12/04/2022] Open
Abstract
Introduction Refractory shockable rhythm has a high mortality rate and poor neurological outcome. Treatments for refractory shockable rhythm presenting after defibrillation and medical treatment are not definite. We conducted research on the application of double simultaneous defibrillation (DSiD) for refractory shockable rhythms. Methods This is a retrospective pilot study performed using medical records from 1 January 2016 to 31 December 2017. The prephase was from January to December 2016. The post-phase was from January to December 2017. During the prephase, we conducted conventional defibrillation with one defibrillator, and during the post-phase, we conducted DSiD using two defibrillators. Primary outcome was survival to hospital discharge. Secondary outcomes included survival to hospital admission and good neurological outcome at 12 months. Statistical analysis was conducted using Fisher's exact test. Data were regarded statistically significant when p < 0.05. Result A total of 38 patients were included. Twenty-one patients underwent conventional defibrillation, and 17 underwent DSiD. The DSiD group had a higher survival to admission rate (14/17 (82.4%) vs. 6/21 (28.6%), p=0.001) and showed a trend for higher survival to discharge (7/17 (41.2%) vs. 3/21 (14.3%), p=0.078). Good neurological outcome at 12 months of the DSiD group was higher than that of the conventional defibrillation group, but the difference was not statistically significant (5/17 (29.4%) vs 2/21 (9.5%), p=0.207). Conclusion In patients with refractory shockable rhythms, DSiD has increased survival to hospital admission and a trend of increased survival to hospital discharge. However, DSiD did not improve neurological outcome at 12 months.
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Xu J, Jin X, Chen Q, Wu C, Li Z, Zhou G, Xu Y, Qian A, Li Y, Zhang M. Faster Hypothermia Induced by Esophageal Cooling Improves Early Markers of Cardiac and Neurological Injury After Cardiac Arrest in Swine. J Am Heart Assoc 2019; 7:e010283. [PMID: 30608213 PMCID: PMC6404192 DOI: 10.1161/jaha.118.010283] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background After cardiopulmonary resuscitation, the protective effects of therapeutic hypothermia induced by conventional cooling are limited. Recently, esophageal cooling (EC) has been shown to be an effective, easily performed approach to induce therapeutic hypothermia. In this study we investigated the efficacy of EC and its effects on early markers of postresuscitation cardiac and neurological injury in a porcine model of cardiac arrest. Methods and Results Thirty‐two male domestic swine were randomized into 4 groups: sham control, normothermia, surface cooling, and EC. Sham animals underwent the surgical preparation only. Ventricular fibrillation was induced and untreated for 8 minutes while defibrillation was attempted after 5 minutes of cardiopulmonary resuscitation. At 5 minutes after resuscitation, therapeutic hypothermia was induced by either EC or surface cooling to reach a target temperature of 33°C until 24 hours postresuscitation, followed by a rewarming rate of 1°C/h for 5 hours. The temperature was normally maintained in the control and normothermia groups. After resuscitation, a significantly faster decrease in blood temperature was observed in the EC group than in the surface cooling group (2.8±0.7°C/h versus 1.5±0.4°C/h; P<0.05). During the maintenance and rewarming phases the temperature was maintained at an even level between the 2 groups. Postresuscitation cardiac and neurological damage was significantly improved in the 2 hypothermic groups compared with the normothermia group; however, the protective effects were significantly greater in the EC group. Conclusions In a porcine model of cardiac arrest, faster hypothermia successfully induced by EC was significantly better than conventional cooling in improving early markers of postresuscitation cardiac and neurological injury.
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Affiliation(s)
- Jiefeng Xu
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China.,3 Department of Emergency Medicine Yuyao People's Hospital Medical School of Ningbo University Ningbo China
| | - Xiaohong Jin
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China.,4 Department of Emergency Medicine The First People's Hospital of Wenling Taizhou China
| | - Qijiang Chen
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China.,5 Department of Intensive Care Medicine The First Hospital of Ninghai Ningbo China
| | - Chunshuang Wu
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China
| | - Zilong Li
- 3 Department of Emergency Medicine Yuyao People's Hospital Medical School of Ningbo University Ningbo China
| | - Guangju Zhou
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China
| | - Yongan Xu
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China
| | - Anyu Qian
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China
| | - Yulin Li
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China
| | - Mao Zhang
- 1 Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,2 Institute of Emergency Medicine Zhejiang University Hangzhou China
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Stanger D, Mihajlovic V, Singer J, Desai S, El-Sayegh R, Wong GC. Editor's Choice-Effects of targeted temperature management on mortality and neurological outcome: A systematic review and meta-analysis. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2017; 7:467-477. [PMID: 29172657 DOI: 10.1177/2048872617744353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
AIMS The purpose of this study was to conduct a systematic review, and where applicable meta-analyses, examining the evidence underpinning the use of targeted temperature management following resuscitation from cardiac arrest. METHODS AND RESULTS Multiple databases were searched for publications between January 2000-February 2016. Nine Population, Intervention, Comparison, Outcome questions were developed and meta-analyses were performed when appropriate. Reviewers extracted study data and performed quality assessments using Grading of Recommendations, Assessment, Development and Evaluation methodology, the Cochrane Risk Bias Tool, and the National Institute of Health Study Quality Assessment Tool. The primary outcomes for each Population, Intervention, Comparison, Outcome question were mortality and poor neurological outcome. Overall, low quality evidence demonstrated that targeted temperature management at 32-36°C, compared to no targeted temperature management, decreased mortality (risk ratio 0.76, 95% confidence interval 0.61-0.92) and poor neurological outcome (risk ratio 0.73, 95% confidence interval 0.60-0.88) amongst adult survivors of out-of-hospital cardiac arrest with an initial shockable rhythm. Targeted temperature management use did not benefit survivors of in-hospital cardiac arrest nor out-of-hospital cardiac arrest survivors with a non-shockable rhythm. Moderate quality evidence demonstrated no benefit of pre-hospital targeted temperature management initiation. Low quality evidence showed no difference between endovascular versus surface cooling targeted temperature management systems, nor any benefit of adding feedback control to targeted temperature management systems. Low quality evidence suggested that targeted temperature management be maintained for 18-24 h. CONCLUSIONS Low quality evidence supports the in-hospital initiation and maintenance of targeted temperature management at 32-36°C amongst adult survivors of out-of-hospital cardiac arrest with an initial shockable rhythm for 18-24 h. The effects of targeted temperature management on other populations, the optimal rate and method of cooling and rewarming, and effects of fever require further study.
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Affiliation(s)
- Dylan Stanger
- 1 Department of Medicine, University of British Columbia, Canada
| | - Vesna Mihajlovic
- 1 Department of Medicine, University of British Columbia, Canada
| | - Joel Singer
- 2 School of Population and Public Health, University of British Columbia, Canada
| | - Sameer Desai
- 2 School of Population and Public Health, University of British Columbia, Canada
| | - Rami El-Sayegh
- 2 School of Population and Public Health, University of British Columbia, Canada
| | - Graham C Wong
- 3 Division of Cardiology, University of British Columbia, Canada
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Scales DC, Cheskes S, Verbeek PR, Pinto R, Austin D, Brooks SC, Dainty KN, Goncharenko K, Mamdani M, Thorpe KE, Morrison LJ. Prehospital cooling to improve successful targeted temperature management after cardiac arrest: A randomized controlled trial. Resuscitation 2017; 121:187-194. [PMID: 28988962 DOI: 10.1016/j.resuscitation.2017.10.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/25/2017] [Accepted: 10/02/2017] [Indexed: 12/22/2022]
Abstract
RATIONALE Targeted temperature management (TTM) improves survival with good neurological outcome after out-of-hospital cardiac arrest (OHCA), but is delivered inconsistently and often with delay. OBJECTIVE To determine if prehospital cooling by paramedics leads to higher rates of 'successful TTM', defined as achieving a target temperature of 32-34°C within 6h of hospital arrival. METHODS Pragmatic RCT comparing prehospital cooling (surface ice packs, cold saline infusion, wristband reminders) initiated 5min after return of spontaneous circulation (ROSC) versus usual resuscitation and transport. The primary outcome was rate of 'successful TTM'; secondary outcomes were rates of applying TTM in hospital, survival with good neurological outcome, pulmonary edema in emergency department, and re-arrest during transport. RESULTS 585 patients were randomized to receive prehospital cooling (n=279) or control (n=306). Prehospital cooling did not increase rates of 'successful TTM' (30% vs 25%; RR, 1.17; 95% confidence interval [CI] 0.91-1.52; p=0.22), but increased rates of applying TTM in hospital (68% vs 56%; RR, 1.21; 95%CI 1.07-1.37; p=0.003). Survival with good neurological outcome (29% vs 26%; RR, 1.13, 95%CI 0.87-1.47; p=0.37) was similar. Prehospital cooling was not associated with re-arrest during transport (7.5% vs 8.2%; RR, 0.94; 95%CI 0.54-1.63; p=0.83) but was associated with decreased incidence of pulmonary edema in emergency department (12% vs 18%; RR, 0.66; 95%CI 0.44-0.99; p=0.04). CONCLUSIONS Prehospital cooling initiated 5min after ROSC did not increase rates of achieving a target temperature of 32-34°C within 6h of hospital arrival but was safe and increased application of TTM in hospital.
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Affiliation(s)
- D C Scales
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Interdepartmental Division of Critical Care, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Institute of Clinical and Evaluative Sciences, Toronto, Ontario, Canada.
| | - S Cheskes
- Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Sunnybrook Centre for Prehospital Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - P R Verbeek
- Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Sunnybrook Centre for Prehospital Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - R Pinto
- Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - D Austin
- Department of Emergency Medicine, Markham Stouffville Hospital, Markham, Ontario, Canada
| | - S C Brooks
- Department of Emergency Medicine, Faculty of Health Sciences Queen's University, Kingston, Ontario, Canada; Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - K N Dainty
- Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - K Goncharenko
- Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - M Mamdani
- Applied Health Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - K E Thorpe
- Applied Health Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - L J Morrison
- Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Rescu, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
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Rosoff PM, Schneiderman LJ. Irrational Exuberance: Cardiopulmonary Resuscitation as Fetish. THE AMERICAN JOURNAL OF BIOETHICS : AJOB 2017; 17:26-34. [PMID: 28112611 DOI: 10.1080/15265161.2016.1265163] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The Institute of Medicine and the American Heart Association have issued a "call to action" to expand the performance of cardiopulmonary resuscitation (CPR) in response to out-of-hospital cardiac arrest. Widespread advertising campaigns have been created to encourage more members of the lay public to undergo training in the technique of closed-chest compression-only CPR, based upon extolling the virtues of rapid initiation of resuscitation, untempered by information about the often distressing outcomes, and hailing the "improved" results when nonprofessional bystanders are involved. We describe this misrepresentation of CPR as a highly effective treatment as the fetishization of this valuable, but often inappropriately used, therapy. We propose that the medical profession has an ethical duty to inform the public through education campaigns about the procedure's limitations in the out-of-hospital setting and the narrow clinical indications for which it has been demonstrated to have a reasonable probability of producing favorable outcomes.
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Remote Postconditioning Alone and Combined with Hypothermia Improved Postresuscitation Cardiac and Neurological Outcomes in Swine. BIOMED RESEARCH INTERNATIONAL 2016; 2016:6743648. [PMID: 28097144 PMCID: PMC5206419 DOI: 10.1155/2016/6743648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 11/20/2016] [Accepted: 11/29/2016] [Indexed: 11/18/2022]
Abstract
Objective. Previously, we demonstrated that remote ischemic postconditioning (RIpostC) improved postresuscitation myocardial and cerebral functions in rat. Here, we investigated the effects of RIpostC alone and combined with therapeutic hypothermia (TH) on cardiac and neurological outcomes after CPR in swine. Methods. Twenty-one pigs were subjected to 10 mins of VF and then 5 mins of CPR. The animals were randomized to receive RIpostC alone, or its combination with TH, or sham control. RIpostC was induced by 4 cycles of limb ischemia followed by reperfusion. TH was implemented by surface cooling to reach a temperature of 32–34°C. Results. During 72 hrs after resuscitation, lower level of cardiac troponin I and greater stroke volume and global ejection fraction were observed in animals that received RIpostC when compared to the control. RIpostC also decreased serum levels of neuron-specific enolase and S100B and increased neurologic alertness score after resuscitation. The combination of RIpostC and TH resulted in greater improvement in cardiac and neurological outcomes than RIpostC alone. Conclusion. RIpostC was conducive to improving postresuscitation myocardial and cerebral functions and reducing their organ injuries. Its combination with TH further enhanced its protective effects.
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Schock RB, Janata A, Peacock WF, Deal NS, Kalra S, Sterz F. Time to Cooling Is Associated with Resuscitation Outcomes. Ther Hypothermia Temp Manag 2016; 6:208-217. [PMID: 27906641 PMCID: PMC5144870 DOI: 10.1089/ther.2016.0026] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Our purpose was to analyze evidence related to timing of cooling from studies of targeted temperature management (TTM) after return of spontaneous circulation (ROSC) after cardiac arrest and to recommend directions for future therapy optimization. We conducted a preliminary review of studies of both animals and patients treated with post-ROSC TTM and hypothesized that a more rapid cooling strategy in the absence of volume-adding cold infusions would provide improved outcomes in comparison with slower cooling. We defined rapid cooling as the achievement of 34°C within 3.5 hours of ROSC without the use of volume-adding cold infusions, with a ≥3.0°C/hour rate of cooling. Using the PubMed database and a previously published systematic review, we identified clinical studies published from 2002 through 2014 related to TTM. Analysis included studies with time from collapse to ROSC of 20–30 minutes, reporting of time from ROSC to target temperature and rate of patients in ventricular tachycardia or ventricular fibrillation, and hypothermia maintained for 20–24 hours. The use of cardiopulmonary bypass as a cooling method was an exclusion criterion for this analysis. We compared all rapid cooling studies with all slower cooling studies of ≥100 patients. Eleven studies were initially identified for analysis, comprising 4091 patients. Two additional studies totaling 609 patients were added based on availability of unpublished data, bringing the total to 13 studies of 4700 patients. Outcomes for patients, dichotomized into faster and slower cooling approaches, were determined using weighted linear regression using IBM SPSS Statistics software. Rapid cooling without volume-adding cold infusions yielded a higher rate of good neurological recovery than slower cooling methods. Attainment of a temperature below 34°C within 3.5 hours of ROSC and using a cooling rate of more than 3°C/hour appear to be beneficial.
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Affiliation(s)
- Robert B Schock
- 1 Sid Wolvek Research Center , Life Recovery Systems HD, LLC, Kinnelon, New Jersey
| | - Andreas Janata
- 2 Universitätsklinik für Notfallmedizin, Medizinische Universität Wien , Wien, Austria
| | - W Frank Peacock
- 3 Emergency Medicine, Ben Taub General Hospital , Houston, Texas
| | - Nathan S Deal
- 3 Emergency Medicine, Ben Taub General Hospital , Houston, Texas
| | | | - Fritz Sterz
- 2 Universitätsklinik für Notfallmedizin, Medizinische Universität Wien , Wien, Austria
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15
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Stratil P, Holzer M. Is hypothermia indicated during cardiopulmonary resuscitation and after restoration of spontaneous circulation? Curr Opin Crit Care 2016; 22:212-7. [DOI: 10.1097/mcc.0000000000000299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sathianathan K, Tiruvoipati R, Vij S. Prognostic factors associated with hospital survival in comatose survivors of cardiac arrest. World J Crit Care Med 2016; 5:103-110. [PMID: 26855900 PMCID: PMC4733450 DOI: 10.5492/wjccm.v5.i1.103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 12/08/2015] [Accepted: 01/11/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To identify patient, cardiac arrest and management factors associated with hospital survival in comatose survivors of cardiac arrest.
METHODS: A retrospective, single centre study of comatose patients admitted to our intensive care unit (ICU) following cardiac arrest during the twenty year period between 1993 and 2012. This study was deemed by the Human Research Ethics Committee (HREC) of Monash Health to be a quality assurance exercise, and thus did not require submission to the Monash Health HREC (Research Project Application, No. 13290Q). The study population included all patients admitted to our ICU between 1993 and 2012, with a discharge diagnosis including “cardiac arrest”. Patients were excluded if they did not have a cardiac arrest prior to ICU admission (i.e., if their primary arrest was during their admission to ICU), or were not comatose on arrival to ICU. Our primary outcome measure was survival to hospital discharge. Secondary outcome measures were ICU and hospital length of stay (LOS), and factors associated with survival to hospital discharge.
RESULTS: Five hundred and eighty-two comatose patients were admitted to our ICU following cardiac arrest, with 35% surviving to hospital discharge. The median ICU and hospital LOS was 3 and 5 d respectively. There was no survival difference between in-hospital and out-of-hospital cardiac arrests. Males made up 62% of our cardiac arrest population, were more likely to have a shockable rhythm (56% vs 37%, P < 0.001), and were more likely to survive to hospital discharge (40% vs 28%, P = 0.006). On univariate analysis, therapeutic hypothermia, regardless of method used (e.g., rapid infusion of ice cold fluids, topical ice, “Arctic Sun”, passive rewarming, “Bair Hugger”) and location initiated (e.g., pre-hospital, emergency department, intensive care) was associated with increased survival. There was however no difference in survival associated with target temperature, time at target temperature, location of initial cooling, method of initiating cooling, method of maintaining cooling or method of rewarming. Patients that survived were more likely to have a shockable rhythm (P < 0.001), shorter time to return of spontaneous circulation (P < 0.001), receive therapeutic hypothermia (P = 0.03), be of male gender (P = 0.006) and have a lower APACHE II score (P < 0.001). After multivariate analysis, only a shockable initial rhythm (OR = 6.4, 95%CI: 3.95-10.4; P < 0.01) and a shorter time to return of spontaneous circulation (OR = 0.95, 95%CI: 0.93-0.97; P < 0.01) was found to be independently associated with survival to hospital discharge.
CONCLUSION: In comatose survivors of cardiac arrest, shockable rhythm and shorter time to return of spontaneous circulation were independently associated with increased survival to hospital discharge.
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Successful use of targeted temperature management in pregnancy after out-of-hospital cardiac arrest. Am J Emerg Med 2015; 34:122.e3-4. [PMID: 26123929 DOI: 10.1016/j.ajem.2015.05.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 05/26/2015] [Indexed: 11/22/2022] Open
Abstract
Targeted temperature management (TTM) may be considered on an individual basis after cardiac arrest in a comatose pregnant patient. The only 3 cases published so far describing the use of TTM in this setting have conflicting results in terms of fetal outcome.
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Should We Take the Temperature Out of Targeted Temperature Management?*. Crit Care Med 2014; 42:2642-3. [DOI: 10.1097/ccm.0000000000000617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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