Vol 7, No 3 (2022)
Research paper
Published online: 2022-09-28

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Prognostic nutritional index to predicting mortality in surgical intensive care patients

Hayriye Cankar Dal1, Firdevs Tugba Bozkurt2
Disaster Emerg Med J 2022;7(3):191-197.


INTRODUCTION: It is known that immuno-nutritional status affects clinical outcomes in intensive care (ICU) patients. This study aimed to evaluate the relationship of the Prognostic Nutritional Index (PNI) with mortality in surgical ICU patients.
MATERIAL AND METHODS: The single-center, retrospective, observational study was conducted in a 17-bed surgical ICU. Patients over the age of 18 who were hospitalized between May 1, 2018, and May 1, 2019, were evaluated.
RESULTS: 217 patients followed in the surgical ICU were evaluated. The mean age of the study population was 51.84 ± 21.25 years, and 150 (69.10%) patients were male. ICU mortality was calculated as 16.10%. Trauma was the most common reason for hospitalization in both groups, and there was no difference between the two groups in terms of hospitalization reasons. The PNI score was found to be significantly lower in the non-survivor group compared to the survivors (p < 0.001). The PNI cut-off value in predicting mortality was found to be 32.01 with a sensitivity of 0.829 and a specificity of 0.956 [AUC = 0.957 (95% CI from 0.929 to 0.984); p < 0.001].
CONCLUSIONS: PNI is a cost-effective scoring system that can be calculated with a simple formulation. In our study, in which surgical ICU cases were evaluated, lower PNI values were found in patients with mortality compared to those who survived. We believe that PNI can be used in the prediction of mortality in surgical ICU cases, and our study will shed light on future studies on this subject.

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