Open Access

Emulsified isoflurane combined with therapeutic hypothermia improves survival and neurological outcomes in a rat model of cardiac arrest

  • Authors:
    • Meng‑Jun Wu
    • Ya‑Jie Zhang
    • Hai Yu
    • Bin Liu
  • View Affiliations

  • Published online on: January 13, 2017     https://doi.org/10.3892/etm.2017.4044
  • Pages: 891-898
  • Copyright: © Wu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Emulsified isoflurane (EIso), when introduced following cardiopulmonary resuscitation (CPR), significantly improves survival and neurological outcomes in a rat model of cardiac arrest (CA). The present study aimed to examine whether EIso combined with therapeutic hypothermia (TH) confers an additive neuroprotective effect. Adult male Sprague‑Dawley rats that were subjected to return of spontaneous circulation (ROSC) after a 6‑min asphyxia‑induced CA were randomized to five groups: Sham group, control group under normothermic conditions, EIso group (4 ml/kg for 30 min under normothermic conditions), TH group (33˚C for 2 h), and EIso plus TH group. Survival conditions and neurological outcomes were evaluated at 1 day and 7 days after ROSC. Animal survival rate at 7 days after ROSC was 30.7% in the CPR group, 60% in the EIso group, 63.6% in the TH group and 72.7% in the EIso plus TH group. EIso, TH and EIso plus TH yielded significant improvements in survival rates, neural deficit score and cognitive function, and ameliorated hippocampal CA1 region cell injury and apoptosis at 1 day and 7 days after ROSC compared with the CPR group. Combined therapy of EIso and TH was superior to EIso or TH alone, suggesting that combined EIso and TH treatment results in significant improvements in survival and neurological outcomes, and was more effective than independent EIso or TH treatment.
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March-2017
Volume 13 Issue 3

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Wu MJ, Zhang YJ, Yu H and Liu B: Emulsified isoflurane combined with therapeutic hypothermia improves survival and neurological outcomes in a rat model of cardiac arrest. Exp Ther Med 13: 891-898, 2017
APA
Wu, M., Zhang, Y., Yu, H., & Liu, B. (2017). Emulsified isoflurane combined with therapeutic hypothermia improves survival and neurological outcomes in a rat model of cardiac arrest. Experimental and Therapeutic Medicine, 13, 891-898. https://doi.org/10.3892/etm.2017.4044
MLA
Wu, M., Zhang, Y., Yu, H., Liu, B."Emulsified isoflurane combined with therapeutic hypothermia improves survival and neurological outcomes in a rat model of cardiac arrest". Experimental and Therapeutic Medicine 13.3 (2017): 891-898.
Chicago
Wu, M., Zhang, Y., Yu, H., Liu, B."Emulsified isoflurane combined with therapeutic hypothermia improves survival and neurological outcomes in a rat model of cardiac arrest". Experimental and Therapeutic Medicine 13, no. 3 (2017): 891-898. https://doi.org/10.3892/etm.2017.4044