Effective intranasal cooling in an 80 year old patient with heatstroke

Am J Emerg Med. 2020 Nov;38(11):2488.e1-2488.e2. doi: 10.1016/j.ajem.2020.05.098. Epub 2020 Jun 1.

Abstract

Intranasal cooling by the evaporation of perflourcarbon is almost exclusively used for the induction of therapeutic hypothermia in post-resuscitation care. This method has proven to be effective and safe. This case presents a successful application to a patient with external heatstroke. The 80 year old male patient was found in deep coma (GCS 4) by emergency medical services (EMS) showing a core temperature around 42 °C. Despite of preclinical physical cooling, the patient showed a persistent temperature of 41.5 °C upon reaching the emergency department. After endotracheal intubation intranasal evaporation cooling was performed and the patient's core temperature was reduced efficiently. We recorded an excellent cooling rate of 2.8 °C per hour. 16 h later the patient was successfully extubated with a good neurological outcome. This case shows that although intranasal cooling is mostly known for post-resuscitation care, there is a sensible application in heatstroke with imminent cerebral oedema.

Keywords: Heatstroke; Hyperthermia; Intranasal evaporation cooling.

Publication types

  • Case Reports

MeSH terms

  • Aged, 80 and over
  • Coma / physiopathology
  • Cryotherapy / instrumentation
  • Cryotherapy / methods*
  • Equipment and Supplies
  • Fluid Therapy
  • Fluorocarbons
  • Glasgow Coma Scale
  • Heat Stroke / physiopathology
  • Heat Stroke / therapy*
  • Humans
  • Hypothermia, Induced / instrumentation
  • Intubation, Intratracheal
  • Male
  • Nasal Cavity*

Substances

  • Fluorocarbons