There are several predictors of clinical outcome in patients undergoing brain tumor surgery. Among those, nutritional parameters and calculated nutritional index are known to have ability to predict mortality and clinical outcomes in some patients with brain tumor. However, there are lack of consistent results on predictability of nutritional index and clinical outcome in patients undergoing brain tumor surgery.

In this retrospective study, we evaluated the relationship between prognostic nutritional index, which was calculated from laboratory parameters, and clinical outcome including mortality in patients undergoing brain tumor surgery.

Inclusion Criteria:

• adult patients undergoing brain tumor surgery at Seoul National University Hospital, South Korea

Exclusion Criteria:

• Lack of results of laboratory parameters, such as serum albumin, lymphocyte count, cholesterol
• Lack of data on clinical outcome, including mortality, acute kidney injury, renal replacement therapy, length of hospital stay, and other major adverse outcome

Adult patients undergoing brain tumor surgery at Seoul National University Hospital, South Korea