Zhong L, Wu M, Liu Z, et al. - With the aim to determine the early risk factors influencing the 90-day prognosis of severe heat stroke patients, researchers here conducted a case-control study via retrospectively analyzing the clinical data of 117 severe heat stroke patients admitted to the intensive care unit of the General Hospital of Southern Theater Command. Of these patients, 13 patients (11.1%) died within 90 days. Per findings, the longer the cooling duration, the faster the heart rate at admission, and the higher the SOFA score, the lower the 90-day survival rate was. They suggest the possible utility of the combination of these three indicators in predicting 90-day mortality and poor prognosis in patients with severe heat stroke.