Prognostic Nutritional Index and Major Adverse Cardiac Events After Burn Surgery: A Propensity Score Matching Analysis
JOURNAL OF BURN CARE & RESEARCH(2022)
Abstract
Burn injuries can cause significant malnutrition, leading to cardiovascular impairments. The prognostic nutritional index (PM) predicts postoperative complications. We evaluated the impact of preoperative PNI on major adverse cardiac events (MACE) after burn surgery. PM was calculated using the equation, 10 x (serum albumin level) + 0.005 x (total lymphocyte count). Multivariable logistic regression analysis was conducted to evaluate the predictors for MACE at 6 months after burn surgery. Receiver operating characteristic curve and propensity score matching analyses were conducted. Additionally, Kaplan-Meier analysis was conducted to compare postoperative 1-year mortality between MACE and non-MACE groups. MACE after burn surgery occurred in 184 (17.5%) of 1049 patients. PM, age, American Society of Anesthesiologists physical status, and TBSA burned were significantly related to MACE. The area under the receiver operating characteristic curve of PNI was 0.729 (optimal cutoff value = 35). After propensity score matching, the incidence of MACE in the PNI <35 group was higher than that in the PNI 235 group (20.1% vs 9.6%, P < .001). PM <35 was related to an increased incidence of MACE (odds ratio = 2.373, 95% confidence interval = 1.499-3.757, P < .001). The postoperative 1-year mortality was higher in the MACE group than in the non-MACE group (54.9% vs 9.1%, P < .001). Preoperative PNI was a predictor for MACE after burn surgery. PNI <35 was significantly related to an increased incidence of MACE. Moreover, MACE was related to higher postoperative 1-year mortality.
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Key words
Burn Injury
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