“… 32 , 37 In the setting of TSA, advanced age, health comorbidities such as obesity, cardiac disease, and immunosuppression, and preoperative laboratory abnormalities such as hypoalbuminemia, anemia, thrombocytopenia, and thrombocytosis are factors associated with poorer outcomes postoperatively. 6 , 7 , 9 , 11 , 22 , 24 , 25 , 29 , 40 In this study, we investigated patients’ degree of malnutrition based on GNRI as a risk factor for postoperative complications in geriatric patients undergoing TSA. We found that several complications associated with malnutrition were moderate to life-threatening postoperative complications, including sepsis, pneumonia, unplanned reintubation, UTI, cardiac arrest or MI, stroke, blood transfusions, failure to wean off a ventilator within 48 hours, C. diff infection, nonhome discharge, readmission, unplanned reoperation, LOS > 2 days, and mortality.…”