scholarly journals Targeted temperature management after cardiac arrest and fever control with an esophageal cooling device

Critical Care ◽  
2015 ◽  
Vol 19 (Suppl 1) ◽  
pp. P424 ◽  
Author(s):  
A Hegazy ◽  
D Lapierre ◽  
E Althenayan
Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Fabrizio Assis ◽  
Emma G Bigelow ◽  
Raghuram Chava ◽  
Sunjeet Sidhu ◽  
Aravindan Kolandaivelu ◽  
...  

Background: Targeted temperature management (TTM) is recommended as a standard of care for post cardiac arrest patients. Current TTM methods have significant limitations to be used in an ambulatory setting. We explored the efficacy and safety of a novel non-invasive transnasal evaporative cooling device (CoolStat™). Methods: Eleven pigs underwent hypothermia therapy using a transnasal cooling device (CoolStat™). CoolStat™ induces evaporative cooling by blowing de-humidified ambient air over the nose in a unidirectional fashion. CoolStat’s efficacy and safety were assessed by applying different cooling strategies (Groups A, B and C). In group A (efficacy study; n=5, TTM for 8h), time to achieve brain target temperature, and the percentage of time in which the temperature ranged within 0.5 o C after reaching the target temperature were investigated. In the safety assessment (Groups B and C), two worst-case therapy situations were reproduced: in group B (n=3), continuous maximum air flow (65L/min) was applied without temperature control and, in group C (n=3), subjects underwent 24-hour TTM (prolonged therapy). Hemodynamic and respiratory parameters, nasal mucosa integrity (endoscopic assessment) and other therapy-related adverse effects were evaluated. Results: Efficacy study. CoolStat™ cooling therapy successfully induced and sustained managed hypothermia in all subjects. Brain target temperature was achieved in 0.5±0.6h and kept within a ±0.5 o C range for the therapy duration (99.9±0.1%). All animals completed the safety studies. Maximum air flow (Group B) and 24-hour (Group C) therapies were well-tolerated and no significant damage was observed on nasal mucosa for neither of the groups. Conclusion: CoolStat™ was able to efficiently induce and maintain hypothermia using unidirectional high flow of dry air into the nostrils of porcine models. CoolStat therapy was well-tolerated and might account for early hypothermia in cardiac arrest settings.


Resuscitation ◽  
2017 ◽  
Vol 121 ◽  
pp. 54-61 ◽  
Author(s):  
Antoine Goury ◽  
Florent Poirson ◽  
Ulriikka Chaput ◽  
Sebastian Voicu ◽  
Pierre Garçon ◽  
...  

2021 ◽  
pp. 088506662110189
Author(s):  
Merry Huang ◽  
Aaron Shoskes ◽  
Migdady Ibrahim ◽  
Moein Amin ◽  
Leen Hasan ◽  
...  

Purpose: Targeted temperature management (TTM) is a standard of care in patients after cardiac arrest for neuroprotection. Currently, the effectiveness and efficacy of TTM after extracorporeal cardiopulmonary resuscitation (ECPR) is unknown. We aimed to compare neurological and survival outcomes between TTM vs non-TTM in patients undergoing ECPR for refractory cardiac arrest. Methods: We searched PubMed and 5 other databases for randomized controlled trials and observational studies reporting neurological outcomes or survival in adult patients undergoing ECPR with or without TTM. Good neurological outcome was defined as cerebral performance category <3. Two independent reviewers extracted the data. Random-effects meta-analyses were used to pool data. Results: We included 35 studies (n = 2,643) with the median age of 56 years (interquartile range [IQR]: 52-59). The median time from collapse to ECMO cannulation was 58 minutes (IQR: 49-82) and the median ECMO duration was 3 days (IQR: 2.0-4.1). Of 2,643, 1,329 (50.3%) patients received TTM and 1,314 (49.7%) did not. There was no difference in the frequency of good neurological outcome at any time between TTM (29%, 95% confidence interval [CI]: 23%-36%) vs. without TTM (19%, 95% CI: 9%-31%) in patients with ECPR ( P = 0.09). Similarly, there was no difference in overall survival between patients with TTM (30%, 95% CI: 22%-39%) vs. without TTM (24%, 95% CI: 14%-34%) ( P = 0.31). A cumulative meta-analysis by publication year showed improved neurological and survival outcomes over time. Conclusions: Among ECPR patients, survival and neurological outcome were not different between those with TTM vs. without TTM. Our study suggests that neurological and survival outcome are improving over time as ECPR therapy is more widely used. Our results were limited by the heterogeneity of included studies and further research with granular temperature data is necessary to assess the benefit and risk of TTM in ECPR population.


Author(s):  
Thomas Hvid Jensen ◽  
Peter Juhl-Olsen ◽  
Bent Roni Ranghøj Nielsen ◽  
Johan Heiberg ◽  
Christophe Henri Valdemar Duez ◽  
...  

Abstract Background Transthoracic echocardiographic (TTE) indices of myocardial function among survivors of out-of-hospital cardiac arrest (OHCA) have been related to neurological outcome; however, results are inconsistent. We hypothesized that changes in average peak systolic mitral annular velocity (s’) from 24 h (h) to 72 h following start of targeted temperature management (TTM) predict six-month neurological outcome in comatose OHCA survivors. Methods We investigated the association between peak systolic velocity of the mitral plane (s’) and six-month neurological outcome in a population of 99 patients from a randomised controlled trial comparing TTM at 33 ± 1 °C for 24 h (h) (n = 47) vs. 48 h (n = 52) following OHCA (TTH48-trial). TTE was conducted at 24 h, 48 h, and 72 h after reaching target temperature. The primary outcome was 180 days neurological outcome assessed by Cerebral Performance Category score (CPC180) and the primary TTE outcome measure was s’. Secondary outcome measures were left ventricular ejection fraction (LVEF), global longitudinal strain (GLS), e’, E/e’ and tricuspid annular plane systolic excursion (TAPSE). Results Across all three scan time points s’ was not associated with neurological outcome (ORs: 24 h: 1.0 (95%CI: 0.7–1.4, p = 0.98), 48 h: 1.13 (95%CI: 0.9–1.4, p = 0.34), 72 h: 1.04 (95%CI: 0.8–1.4, p = 0.76)). LVEF, GLS, E/e’, and TAPSE recorded on serial TTEs following OHCA were neither associated with nor did they predict CPC180. Estimated median e’ at 48 h following TTM was 5.74 cm/s (95%CI: 5.27–6.22) in patients with good outcome (CPC180 1–2) vs. 4.95 cm/s (95%CI: 4.37–5.54) in patients with poor outcome (CPC180 3–5) (p = 0.04). Conclusions s’ assessed on serial TTEs in comatose survivors of OHCA treated with TTM was not associated with CPC180. Our findings suggest that serial TTEs in the early post-resuscitation phase during TTM do not aid the prognostication of neurological outcome following OHCA. Trial registration NCT02066753. Registered 14 February 2014 – Retrospectively registered,


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