• Noel Watson, Grigoris Karamasis, Konstantinos Stathogiannis, Matt Potter, Max Damian, Christopher Cook, Richard Pottinger, Gerald Clesham, Reto Gamma, Rajesh Aggarwal, Jeremy Sayer, Nicholas Robinson, Rohan Jagathesan, Alamgir Kabir, Kare Tang, Paul Kelly, Maria Maccaroni, Ramabhadran Kadayam, Raghu Nalgirkar, Gyanesh Namjoshi, Sali Urovi, Anirudda Pai, Kunal Waghmare, Vincenzo Caruso, Kees Polderman, Marko Noc, John R Davies, and Thomas R Keeble.
• Essex Cardiothoracic Centre, Basildon, Essex, UK.
• Resuscitation. 2022 Feb 1; 171: 114-120.

AimTo determine the safety and feasibility of an early (12 h) waking and extubation protocol for out-of-hospital cardiac arrest (OHCA) patients receiving targeted temperature management (TTM).MethodsThis was a single-centre, prospective, non-randomised, observational, safety and feasibility pilot study which included successfully resuscitated OHCA patients, of presumed cardiac cause. Inclusion criteria were: OHCA patients aged over 18 years with a return of spontaneous circulation, who were going to receive TTM33 (TTM at 33 °C for 24 h and prevention of hyperthermia for 72 h) as part of their post cardiac arrest care. Clinical stability was measured against physiological and neurological parameters as well as clinical assessment.Results50 consecutive patients were included (median age 65.5 years, 82% male) in the study. Four (8%) patients died within the first twelve hours and were excluded from the final cohort (n = 46). Twenty-three patients (46%) were considered clinically stable and suitable for early waking based on the intention to treat analysis; 12 patients were extubated early based on a variety of clinical factors (21.4 ± 8.6 h) whilst continuing to receive TTM33 with a mean core temperature of 34.2 °C when extubated. Of these, five patients were discharged from the intensive care unit (ICU) <48 h after admission with a mean ICU length of stay 1.8 ± 0.4 days. Twenty-eight patients (56%) were discharged from the ICU with a modified Rankin Score of 0-2. The overall intra-hospital mortality was 50% (n = 25).ConclusionsIt is safe and feasible to wake selected comatose OHCA patients at 12 h, allowing for earlier positive neuro-prognostication and reduced ICU stay.Copyright © 2021. Published by Elsevier B.V.

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