|Longest no flow time||42-year-old male, found in crevasse, 7 m under snow, no vital signs, CPR started only after 70 min in hospital when patient was asystolic, 19 °C core temperature, ECLS rewarming, full recovery .|
|Longest manual CPR||42-year-old male, found outdoors. Developed asystole just after discovery, CPR started, 23.2 °C, 6 h and 30 min CPR. Rewarmed with non-ECLS methods until ROSC. Full recovery .|
|Longest mechanical CPR||42-year-old female, found unconscious in her apartment. VF arrest during evacuation to hospital. Manual CPR started and this was changed to mechanical CPR on arrival at hospital. Minimal temperature 24 °C. 80 min mechanical CPR while the patient was rewarmed noninvasively .|
|Longest total resuscitation||65-year-old female went missing and was found on a snow-covered riverbank. Initially 28 °C (rectal) but dropped to 20.8 °C. Asystole. Resuscitation was CPR (4 h 48 m) and ECLS (3 h 52 m). Total resuscitation time was 8 h 40 min .|
|Lowest survived body core temperature||29-year-old female, fell into water fall gully, flooded by icy water but able to breathe. Lifeless for approx. 45 min, CPR started after rescue, at hospital admission 13.7 °C and K+ of 4.3 mmol L-1, ECLS rewarming, full recovery .|
|Longest persisting VF||
42-year-old male, found outdoor, CPR started, repeated shocks, hospital transfer, 22 °C, ECLS rewarming started at 130 min CPR and after 38 shocks, successful shock at 30 °C, full recovery .|
25-year-old female, buried by and avalanche in Tatra mountains, Poland. Witnessed VF cardiac arrest (17.0 °C) after extrication, 3 unsuccessful shocks. CPR until ECMO rewarming (6 h, 45 min), and successful 4th shock at 24.8 °C. Full recovery .
|Longest intermittent CPR||57-year-old female, witnessed cardiac arrest in French Alps at 2000 m altitude in a snowstorm; transport distance to EMS vehicle of 1.1 km, 122 m difference in height; 1 min CPR alternating with 1 min walking for 25 min, 5 h CPR, ECLS rewarming, full recovery .|
|Longest submersion||2.5-year-old, submersion in cold water for at least 66 min, 19 °C, ECLS rewarming, full recovery . 7-year-old child, submersion in icy water for at least 83 min, CPR for 64 min, 13.8 °C, K+ 11.3 mmol L-1, ECLS rewarming, full recovery .|
|Longest survival in an avalanche||Female, core temperature <32 °C, when found somnolent, disorientated. 1st- 2nd degree frost bites on hand and feet, no injuries, 43 h and 45 min [236, 237].|
|Longest time in an avalanche indoor||Thirteen days entrapped in a house which in part collapsed after being hit by an avalanche, Heiligenblut, Austria .|
|Lowest temperature with vital signs||
Male age 3 years. ECG showed very irregular rhythm 8–10/min. Rectal temperature recorded about 20 min after arrival at the hospital was 17 °C .|
Female age 37 years. Rectal temperature 17.2 °C. ECG showed atrial fibrillation 28–40/min with PVCs .
|Highest survived potassium in an avalanche victim||Avalanche victim, 6.4 mmol L-1, survived; core temperature and neurological outcome are not reported .|
|Highest survived potassium in an adult||34 year old female, 20 °C, cold environment exposure, asystole, 7.9 mmol L-1, ECLS rewarming, survived. Neurologic outcome not reported .|
|Highest potassium in an accidentally hypothermic patient||7 -year-old and, cold water submersion, 11.3 mmol L-1 , and 31 month old child, cold water submersion, 11.7 mmol L-1 .|
|Longest time in a crevasse||
27 -year-old male, 8 days, good outcome, no temperature or other specific details reported |
70 year male, moderate fractures of skull, vertebral column, pelvis, and femur, 6 days, 33.5 °C, cold injuries to toes, otherwise good outcome .
|Largest number of simultaneous cases of accidental hypothermia with cardiac arrest||15 healthy subjects age 15–45 years were immersed in 2 °C salt water. Seven victims were recovered in circulatory arrest with a median temperature of 18.4 °C. They were rewarmed with ECMO and were subsequently evaluated with advanced neuroradiological and functional testing. All were successfully resuscitated .|