scholarly journals Differential Effectiveness of Hypothermic Targeted Temperature Management According to the Severity of Post-Cardiac Arrest Syndrome

2021 ◽  
Vol 10 (23) ◽  
pp. 5643
Author(s):  
Kazuya Kikutani ◽  
Mitsuaki Nishikimi ◽  
Tatsutoshi Shimatani ◽  
Michihito Kyo ◽  
Shinichiro Ohshimo ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Controlled Trial ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Neurological Outcomes ◽  
Differential Effectiveness ◽  
Beneficial Effects ◽  
Potential Benefits ◽  
Lower Temperature ◽  
Post Cardiac Arrest Syndrome

International guidelines recommend targeted temperature management (TTM) to improve the neurological outcomes in adult patients with post-cardiac arrest syndrome (PCAS). However, it still remains unclear if the lower temperature setting (hypothermic TTM) or higher temperature setting (normothermic TTM) is superior for TTM. According to the most recent large randomized controlled trial (RCT), hypothermic TTM was not found to be associated with superior neurological outcomes than normothermic TTM in PCAS patients. Even though this represents high-quality evidence obtained from a well-designed large RCT, we believe that we still need to continue investigating the potential benefits of hypothermic TTM. In fact, several studies have indicated that the beneficial effect of hypothermic TTM differs according to the severity of PCAS, suggesting that there may be a subgroup of PCAS patients that is especially likely to benefit from hypothermic TTM. Herein, we summarize the results of major RCTs conducted to evaluate the beneficial effects of hypothermic TTM, review the recent literature suggesting the possibility that the therapeutic effect of hypothermic TTM differs according to the severity of PCAS, and discuss the potential of individualized TTM.

Effects of Targeted Temperature Management in Patients with Post-Cardiac Arrest Syndrome after an Out-Of-Hospital Cardiac Arrest Caused by Hanging: A Prospective Observational Cohort Study in Japan

2021 ◽  
Author(s):  
Ryuichiro Kakizaki ◽  
Naofumi Bunya ◽  
Shuji Uemura ◽  
Takehiko Kasai ◽  
Keigo Sawamoto ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Cardiac Arrest ◽  
Propensity Score ◽  
Multivariate Logistic Regression Analysis ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Matched Cohort ◽  
Neurological Outcomes ◽  
Post Cardiac Arrest Syndrome ◽  
Hospital Cardiac Arrest

Abstract Background: Targeted temperature management (TTM) is recommended for unconscious patients after a cardiac arrest. However, its effectiveness in patients with post-cardiac arrest syndrome (PCAS) by hanging remains unclear. Therefore, this study aimed to investigate the relationship between TTM and favorable neurological outcomes in patients with PCAS by hanging.Methods: This study was a retrospective analysis of the Japanese Association for Acute Medicine out-of-hospital cardiac arrest (OHCA) registry between June 2014 and December 2017 among patients with PCAS admitted to the hospitals after an OHCA caused by hanging. A multivariate logistic regression analysis was performed to estimate the propensity score and to predict whether patients with PCAS by hanging receive TTM. We compared patients with PCAS by hanging who received TTM (TTM group) and those who did not (non-TTM group) using propensity score analysis.Results: A total of 199 patients with PCAS by hanging were enrolled in this study. Among them, 43 were assigned to the TTM group and 156 to the non-TTM group. Logistic regression model adjusted for propensity score revealed that TTM was not associated with favorable neurological outcome at 1-month (adjusted odds ratio [OR]: 1.38, 95% confidence interval [CI]: 0.27–6.96). Moreover, no difference was observed in the propensity score-matched cohort (adjusted OR: 0, 73, 95% CI: 0.10–4.71) and in the inverse probability of treatment weighting-matched cohort (adjusted OR: 0.63, 95% CI: 0.15–2.69).Conclusions: TTM was not associated with increased favorable neurological outcomes at 1-month in patients with PCAS after OHCA by hanging.

Pre-existing medical comorbidity is not associated with neurological outcomes in patients undergoing targeted temperature management following cardiac arrest

2017 ◽  
Vol 32 (11) ◽  
pp. 1358-1363 ◽  
Author(s):  
Arash Nayeri ◽  
Nirmanmoh Bhatia ◽  
Benjamin Holmes ◽  
Nyal Borges ◽  
Michael N. Young ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Medical Comorbidity ◽  
Neurological Outcomes

scholarly journals The Effects of Early Bispectral Index to Predict Poor Neurological Function in Cardiac Arrest Patients: A Systematic Review and Meta-Analysis

Diagnostics ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 271
Author(s):  
Chun-Yu Chang ◽  
Chien-Sheng Chen ◽  
Yung-Jiun Chien ◽  
Po-Chen Lin ◽  
Meng-Yu Wu
Keyword(s):  
Cardiac Arrest ◽  
Bispectral Index ◽  
Diagnostic Performance ◽  
Meta Analysis ◽  
Targeted Temperature Management ◽  
Temperature Management ◽  
Logistic Distribution ◽  
Neurological Outcomes ◽  
Meta Regression ◽  
Sedative Agents

The diagnostic performance of the bispectral index (BIS) to early predict neurological outcomes in patients achieving return of spontaneous circulation (ROSC) after cardiac arrest (CA) remained unclear. We searched PubMed, EMBASE, Scopus and CENTRAL for relevant studies through October 2019. Methodologic quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) tool. Meta-analysis was performed using a linear mixed-effects model to the log-transformed data with a logistic distribution assumption. Bivariate meta-regression was performed to explore heterogeneity. In total, 13 studies with 999 CA adult patients were included. At the optimal threshold of 32, BIS obtained within 72 h of ROSC elicits a pooled sensitivity of 84.9% (95% confidence interval (CI), 71.1% to 92.7%), a pooled specificity of 85.9% (95% CI, 71.2% to 93.8%) and an area under the curve of 0.92. Moreover, a BIS cutoff < 12 yielded a pooled specificity of 95.0% (95% CI, 77.8% to 99.0%). In bivariate meta-regression, the timing of neurological outcome assessment, the adoption of targeted temperature management, and the administration of sedative agents or neuromuscular blocking agents (NMBA) were not identified as the potential source of heterogeneity. BIS retains good diagnostic performance during targeted temperature management (TTM) and in the presence of administrated sedative agents and NMBA. In conclusion, BIS can predict poor neurological outcomes early in patients with ROSC after CA with good diagnostic performance and should be incorporated into the neuroprognostication strategy algorithm.

Targeted temperature management: beneficial or not?

2020 ◽  
Vol 12 (6) ◽  
pp. 235-241 ◽  
Author(s):  
Kelley Ricketts ◽  
Bridie Jones
Keyword(s):  
Cardiac Arrest ◽  
Therapeutic Hypothermia ◽  
Survival Rates ◽  
Treatment Strategies ◽  
Targeted Temperature Management ◽  
Prehospital Setting ◽  
Neurological Recovery ◽  
Temperature Management ◽  
Potential Treatment ◽  
Potential Benefits

Targeted temperature management (TTM), formerly known as therapeutic hypothermia, has been shown to improve survival and neurological recovery in patients following cardiac arrest. Following successes with its in-hospital implementation, many guidelines now advocate its use in the prehospital domain for all out-of-hospital cardiac arrests (OHCAs). It has been suggested that patients presenting with shockable rhythms who receive early initiation of TTM have better survival rates. TTM can be initiated in the prehospital setting with minimal equipment. This article discusses and explores the potential benefits and pitfalls of targeted temperature management when initiated in the prehospital environment. Particular focus is given to potential treatment strategies that can be used by paramedics to adequately manage OHCA. It is proposed that prehospital TTM is advantageous to all patients in cardiac arrest and can be efficacious in a variety of prehospital environments, with its implementation requiring only minimal equipment.

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