Chilling the brains of cardiac arrest patients as they are taken to hospital may prevent lasting damage, according to a new study.

The Pre-Resuscitation Intra-Nasal Cooling Effectiveness (PRINCE) study, which analysed 200 patients, was conducted in 15 emergency medical systems in Belgium, Germany, Italy, the Czech Republic and Sweden.

The study found that the non-invasive nasal catheter RhinoChill enabled early cooling of the brain compared to conventional methods used in hospitals during resuscitation of cardiac arrest patients.

RhinoChill sprays a rapidly evaporating coolant liquid into the nasal cavity, resulting in a significantly higher neurologically intact survival-to-discharge rate in heart patients.