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Published in: Annals of Surgical Oncology 3/2021

01-03-2021 | Cystectomy | Urologic Oncology

Impact of Prognostic Nutritional Index on Postoperative Pulmonary Complications in Radical Cystectomy: A Propensity Score-Matched Analysis

Authors: Jihion Yu, MD, Bumsik Hong, MD, PhD, Jun-Young Park, MD, Jai-Hyun Hwang, MD, PhD, Young-Kug Kim, MD, PhD

Published in: Annals of Surgical Oncology | Issue 3/2021

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Abstract

Background

Radical cystectomy is a standard treatment for muscle-invasive bladder cancer but frequently entails postoperative pulmonary complications (PPCs). Nutrition is closely associated with postoperative outcomes. Therefore, we evaluated the impact of preoperative prognostic nutritional index (PNI) on PPCs in radical cystectomy.

Methods

PNI was calculated as 10 × (serum albumin) + 0.005 × (total lymphocyte count). The risk factors for PPCs were evaluated using multivariate logistic regression analysis. A receiver operating characteristic curve analysis of PNI was performed, and an optimal cut-off value was identified. Propensity score-matched analysis was used to determine the impact of PNI on PPCs. Postoperative outcomes were also evaluated.

Results

PPCs occurred in 112 (13.6%) of 822 patients. Multivariate logistic regression analysis identified PNI, age, and serum creatinine level as risk factors. The area under the receiver operating characteristic curve of PNI for predicting PPCs was 0.714 (optimal cut-off value: 45). After propensity score matching, the incidence of PPCs in the PNI ≤ 45 group was significantly higher compared with the PNI > 45 group (20.8% vs. 6.8%; p < 0.001), and PNI ≤ 45 was associated with a higher incidence of PPCs (odds ratio 3.308, 95% confidence interval 1.779–6.151; p < 0.001). The rates of intensive care unit admission and prolonged (> 2 days) stay thereof were higher in patients who developed PPCs.

Conclusions

Preoperative PNI ≤ 45 was associated with a higher incidence of PPCs in radical cystectomy, suggesting that PNI provides useful information regarding pulmonary complications after radical cystectomy.
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Metadata
Title
Impact of Prognostic Nutritional Index on Postoperative Pulmonary Complications in Radical Cystectomy: A Propensity Score-Matched Analysis
Authors
Jihion Yu, MD
Bumsik Hong, MD, PhD
Jun-Young Park, MD
Jai-Hyun Hwang, MD, PhD
Young-Kug Kim, MD, PhD
Publication date
01-03-2021
Publisher
Springer International Publishing
Keyword
Cystectomy
Published in
Annals of Surgical Oncology / Issue 3/2021
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-020-08994-6

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