Severity of Illness Scores

This study planned to review patients admitted to three ICU wards at Beijing Tiantan Hospital between 2017 and 2020. It focused on adult patients who had undergone craniotomy and stayed in the ICU for more than 24 hours. Researchers intended to collect patient information, surgery details, complications, and outcomes from medical records. They also planned to gather routine scoring data used at the hospital and double-check its accuracy. Patients would be divided into two groups based on whether they survived or not, and the ability of different scoring systems to predict outcomes would be analyzed. Additionally, the study aimed to group patients by the type of surgery and assess how well the scoring systems predicted outcomes for each group.