Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery

IntroductionFrailty and malnutrition are closely linked to adverse surgical outcomes. However, their combined influence on post-non-cardiac surgery complications in older patients remains unclear. We aimed to evaluate the predictive value of frailty, malnutrition, and their combined effect on postop...

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Main Authors: Sunisa Chatmongkolchart, Mantana Saetang, Panalee Kittisopaporn, Thitikan Kunapaisal, Dararat Yongsata, Khwanrut Sukitpaneenit
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2025.1636091/full
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author Sunisa Chatmongkolchart
Mantana Saetang
Panalee Kittisopaporn
Thitikan Kunapaisal
Dararat Yongsata
Khwanrut Sukitpaneenit
author_facet Sunisa Chatmongkolchart
Mantana Saetang
Panalee Kittisopaporn
Thitikan Kunapaisal
Dararat Yongsata
Khwanrut Sukitpaneenit
author_sort Sunisa Chatmongkolchart
collection DOAJ
description IntroductionFrailty and malnutrition are closely linked to adverse surgical outcomes. However, their combined influence on post-non-cardiac surgery complications in older patients remains unclear. We aimed to evaluate the predictive value of frailty, malnutrition, and their combined effect on postoperative complications in older patients undergoing intermediate- to high-risk non-cardiac surgery.MethodsThis study was a retrospective analysis of data from a prospectively collected cohort that included 637 patients aged ≥60 years. We assessed frailty using the Clinical Frailty Scale (CFS) and nutritional status using the Prognostic Nutritional Index (PNI). The primary outcome was the occurrence of postoperative complications (Clavien-Dindo classification ≥2). We used logistic regression and receiver-operating characteristic (ROC) analyses to determine the predictive accuracy of CFS, PNI, and CFS + PNI.ResultsWe identified frailty (CFS ≥ 5) in 38.5% of patients, with 29.8% being malnourished (PNI < 45). Multivariate analysis revealed that frailty independently predicted postoperative complications (odds ratio [OR]: 2.09, 95% confidence interval [CI]: 1.09–4.00; p = 0.026). Severe malnutrition (PNI < 40) exhibited a strong association with complications in univariate analysis (OR: 5.88, 95%CI: 3.13–11.08; p < 0.001) but not in multivariate analysis. The combined CFS + PNI model showed enhanced discriminative ability (area under the curve [AUC]: 0.694, 95%CI: 0.647–0.740) compared with CFS (AUC: 0.619, 95%CI: 0.575–0.662) or PNI (AUC: 0.665, 95%CI: 0.618–0.712) alone.ConclusionFrailty is a strong independent predictor of postoperative complications in older patients undergoing non-cardiac surgery. Although severe malnutrition correlates with increased risk, its effect may be partially mediated by frailty. The integration of frailty and nutritional assessments enhances postoperative complication prediction, underscoring comprehensive geriatric evaluation value in preoperative risk stratification.
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spelling doaj-art-e6bfd6c8c4724cfe9202e5bda0f4ac9f2025-08-20T03:44:28ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2025-08-011210.3389/fmed.2025.16360911636091Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgerySunisa ChatmongkolchartMantana SaetangPanalee KittisopapornThitikan KunapaisalDararat YongsataKhwanrut SukitpaneenitIntroductionFrailty and malnutrition are closely linked to adverse surgical outcomes. However, their combined influence on post-non-cardiac surgery complications in older patients remains unclear. We aimed to evaluate the predictive value of frailty, malnutrition, and their combined effect on postoperative complications in older patients undergoing intermediate- to high-risk non-cardiac surgery.MethodsThis study was a retrospective analysis of data from a prospectively collected cohort that included 637 patients aged ≥60 years. We assessed frailty using the Clinical Frailty Scale (CFS) and nutritional status using the Prognostic Nutritional Index (PNI). The primary outcome was the occurrence of postoperative complications (Clavien-Dindo classification ≥2). We used logistic regression and receiver-operating characteristic (ROC) analyses to determine the predictive accuracy of CFS, PNI, and CFS + PNI.ResultsWe identified frailty (CFS ≥ 5) in 38.5% of patients, with 29.8% being malnourished (PNI < 45). Multivariate analysis revealed that frailty independently predicted postoperative complications (odds ratio [OR]: 2.09, 95% confidence interval [CI]: 1.09–4.00; p = 0.026). Severe malnutrition (PNI < 40) exhibited a strong association with complications in univariate analysis (OR: 5.88, 95%CI: 3.13–11.08; p < 0.001) but not in multivariate analysis. The combined CFS + PNI model showed enhanced discriminative ability (area under the curve [AUC]: 0.694, 95%CI: 0.647–0.740) compared with CFS (AUC: 0.619, 95%CI: 0.575–0.662) or PNI (AUC: 0.665, 95%CI: 0.618–0.712) alone.ConclusionFrailty is a strong independent predictor of postoperative complications in older patients undergoing non-cardiac surgery. Although severe malnutrition correlates with increased risk, its effect may be partially mediated by frailty. The integration of frailty and nutritional assessments enhances postoperative complication prediction, underscoring comprehensive geriatric evaluation value in preoperative risk stratification.https://www.frontiersin.org/articles/10.3389/fmed.2025.1636091/fullClinical Frailty Scalemalnutritionolder adultspostoperative complicationsPrognostic Nutritional Index
spellingShingle Sunisa Chatmongkolchart
Mantana Saetang
Panalee Kittisopaporn
Thitikan Kunapaisal
Dararat Yongsata
Khwanrut Sukitpaneenit
Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery
Frontiers in Medicine
Clinical Frailty Scale
malnutrition
older adults
postoperative complications
Prognostic Nutritional Index
title Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery
title_full Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery
title_fullStr Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery
title_full_unstemmed Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery
title_short Frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non-cardiac surgery
title_sort frailty and nutritional assessments for predicting postoperative complications in older adults undergoing non cardiac surgery
topic Clinical Frailty Scale
malnutrition
older adults
postoperative complications
Prognostic Nutritional Index
url https://www.frontiersin.org/articles/10.3389/fmed.2025.1636091/full
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