Aldecoa C, Bettelli G, Bilotta F, Sanders RD, Audisio R, Borozdina A, Cherubini A, Jones C, Kehlet H, MacLullich A, et al. European Society of Anaesthesiology evidence-based and consensus-based guideline on postoperative delirium. Eur J Anaesthesiol. 2017;34(4):192–214.

Article  PubMed  Google Scholar 

Amasene M, Besga A, Medrano M, Urquiza M, Rodriguez-Larrad A, Tobalina I, Barroso J, Irazusta J, Labayen I. Nutritional status and physical performance using handgrip and SPPB tests in hospitalized older adults. Clin Nutr. 2021;40(11):5547–55.

Article  CAS  PubMed  Google Scholar 

Bellanti F, Lo Buglio A, Quiete S, Vendemiale G. Malnutrition in hospitalized old patients: screening and diagnosis, clinical outcomes, and management. Nutrients. 2022;14(4):910.

Article  PubMed  PubMed Central  Google Scholar 

Ceban F, Nogo D, Carvalho IP, Lee Y, Nasri F, Xiong J, Lui LMW, Subramaniapillai M, Gill H, Liu RN, et al. Association between mood disorders and risk of COVID-19 infection, hospitalization, and death: a systematic review and meta-analysis. JAMA Psychiatry. 2021;78(10):1079-91.

Chu CS, Liang CK, Chou MY, Lin YT, Hsu CJ, Chou PH, Chu CL. Short-Form Mini Nutritional Assessment as a useful method of predicting the development of postoperative delirium in elderly patients undergoing orthopedic surgery. Gen Hosp Psychiatry. 2016;38:15–20.

Article  PubMed  Google Scholar 

Crichton M, Craven D, Mackay H, Marx W, van der de Schueren M, Marshall S. A systematic review, meta-analysis and meta-regression of the prevalence of protein-energy malnutrition: associations with geographical region and sex. Age Ageing. 2019;48(1):38–48.

PubMed  Google Scholar 

Cruz-Jentoft AJ, Kiesswetter E, Drey M, Sieber CC. Nutrition, frailty, and sarcopenia. Aging Clin Exp Res. 2017;29(1):43–8.

Article  PubMed  Google Scholar 

Dent E, Wright ORL, Woo J, Hoogendijk EO. Malnutrition in older adults. Lancet. 2023;401(10380):951–66.

Article  PubMed  Google Scholar 

Gracie TJ, Caufield-Noll C, Wang NY, Sieber FE. The association of preoperative frailty and postoperative delirium: a meta-analysis. Anesth Analg. 2021;133(2):314–23.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Guenther U, Hoffmann F, Dewald O, Malek R, Brimmers K, Theuerkauf N, Putensen C, Popp J. Preoperative cognitive impairment and postoperative delirium predict decline in activities of daily living after cardiac surgery-a prospective, observational cohort study. Geriatrics (Basel). 2020;5(4):69.

Article  PubMed  Google Scholar 

Ho MH, Nealon J, Igwe E, Traynor V, Chang HR, Chen KH, Montayre J. Postoperative delirium in older patients: a systematic review of assessment and incidence of postoperative delirium. Worldviews Evid Based Nurs. 2021;18(5):290–301.

Article  PubMed  Google Scholar 

Hogan S, Steffens D, Vuong K, Rangan A, Solomon M, Carey S. Preoperative nutritional status impacts clinical outcome and hospital length of stay in pelvic exenteration patients - a retrospective study. Nutr Health. 2022;28(1):41–8.

Article  PubMed  Google Scholar 

Hughes CG, Boncyk CS, Culley DJ, Fleisher LA, Leung JM, McDonagh DL, Gan TJ, McEvoy MD, Miller TE. American society for enhanced recovery and perioperative quality initiative joint consensus statement on postoperative delirium prevention. Anesth Analg. 2020;130(6):1572–90.

Article  PubMed  PubMed Central  Google Scholar 

Jin Z, Hu J, Ma D. Postoperative delirium: perioperative assessment, risk reduction, and management. Br J Anaesth. 2020;125(4):492–504.

Article  PubMed  Google Scholar 

Liberati A, Altman DG, Tetzlaff J, Mulrow C, Gøtzsche PC, Ioannidis JP, Clarke M, Devereaux PJ, Kleijnen J, Moher D. The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration. J Clin Epidemiol. 2009;62(10):e1-34.

Article  PubMed  Google Scholar 

Ligthart-Melis GC, Luiking YC, Kakourou A, Cederholm T, Maier AB. de van der Schueren MAE: Frailty, sarcopenia, and malnutrition frequently (co-)occur in hospitalized older adults: a systematic review and meta-analysis. J Am Med Dir Assoc. 2020;21(9):1216–28.

Article  PubMed  Google Scholar 

Liu J, Li J, He J, Zhang H, Liu M, Rong J. The age-adjusted Charlson Comorbidity Index predicts post-operative delirium in the elderly following thoracic and abdominal surgery: a prospective observational cohort study. Front Aging Neurosci. 2022;14:979119.

Article  PubMed  PubMed Central  Google Scholar 

Makiguchi T, Yamaguchi T, Nakamura H, Ogawa M, Harimoto N, Shirabe K, Yokoo S. Impact of skeletal muscle mass on postoperative delirium in patients undergoing free flap repair after oral cancer resection. J Plast Surg Hand Surg. 2020;54(3):161–6.

Article  PubMed  Google Scholar 

Mazzola P, Ward L, Zazzetta S, Broggini V, Anzuini A, Valcarcel B, Brathwaite JS, Pasinetti GM, Bellelli G, Annoni G. Association between preoperative malnutrition and postoperative delirium after hip fracture surgery in older adults. J Am Geriatr Soc. 2017;65(6):1222–8.

Article  PubMed  PubMed Central  Google Scholar 

Mohanty S, Gillio A, Lindroth H, Ortiz D, Holler E, Azar J, Boustani M, Zarzaur B. Major surgery and long term cognitive outcomes: the effect of postoperative delirium on dementia in the year following discharge. J Surg Res. 2022;270:327–34.

Article  PubMed  Google Scholar 

Mossie A, Regasa T, Neme D, Awoke Z, Zemedkun A, Hailu S. Evidence-based guideline on management of postoperative delirium in older people for low resource setting: systematic review article. Int J Gen Med. 2022;15:4053–65.

Article  PubMed  PubMed Central  Google Scholar 

Olofsson B, Stenvall M, Lundström M, Svensson O, Gustafson Y. Malnutrition in hip fracture patients: an intervention study. J Clin Nurs. 2007;16(11):2027–38.

Article  PubMed  Google Scholar 

Pang Y, Li Y, Zhang Y, Wang H, Lang J, Han L, Liu H, Xiong X, Gu L, Wu X. Effects of inflammation and oxidative stress on postoperative delirium in cardiac surgery. Front Cardiovasc Med. 2022;9:1049600.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Park EA, Kim MY. Postoperative delirium is associated with negative outcomes and long-term mortality in elderly Koreans: a retrospective observational study. Medicina (Kaunas, Lithuania). 2019;55(10):618.

Article  PubMed  Google Scholar 

Rengel KF, Boncyk CS, DiNizo D, Hughes CG. Perioperative neurocognitive disorders in adults requiring cardiac surgery: screening, prevention, and management. Semin Cardiothorac Vasc Anesth. 2023;27(1):25-41.

Ringaitiene D, Gineityte D, Vicka V, Zvirblis T, Sipylaite J, Irnius A, Ivaskevicius J, Kacergius T. Impact of malnutrition on postoperative delirium development after on pump coronary artery bypass grafting. J Cardiothorac Surg. 2015;10:74.

Article  PubMed  PubMed Central  Google Scholar 

Roy M, Rivest MP, Namian D, Moreau N. The critical reception of the DSM-5: towards a typology of audiences. Public Underst Sci. 2019;28(8):932–48.

Article  PubMed  Google Scholar 

Sánchez Acedo P, Eguaras Córdoba I, Zazpe Ripa C, Herrera Cabezón J, Tarifa Castilla A. Prospective study of factors associated with postoperative delirium after urgent abdominal surgery. Cir Esp (engl Ed). 2020;98(8):450–5.

Article  PubMed  Google Scholar 

Sanford AM, Flaherty JH. Do nutrients play a role in delirium? Curr Opin Clin Nutr Metab Care. 2014;17(1):45–50.

CAS  PubMed  Google Scholar 

Schandelmaier S, Briel M, Varadhan R, Schmid CH, Devasenapathy N, Hayward RA, Gagnier J, Borenstein M, van der Heijden G, Dahabreh IJ, et al. Development of the Instrument to assess the Credibility of Effect Modification Analyses (ICEMAN) in randomized controlled trials and meta-analyses. CMAJ. 2020;192(32):E901-e906.

Article  PubMed  PubMed Central  Google Scholar 

Stang A. Critical evaluation of the Newcastle-Ottawa scale for the assessment of the quality of nonrandomized studies in meta-analyses. Eur J Epidemiol. 2010;25(9):603–5.

Article  PubMed  Google Scholar 

Stroup DF, Berlin JA, Morton SC, Olkin I, Williamson GD, Rennie D, Moher D, Becker BJ, Sipe TA, Thacker SB. Meta-analysis of observational studies in epidemiology: a proposal for reporting. Meta-analysis Of Observational Studies in Epidemiology (MOOSE) group. JAMA. 2000;283(15):2008–12.

Article  CAS  PubMed  Google Scholar 

Sun B, Zhao Y, Lu W, Chen Y. The relationship of malnutrition with cognitive function in the older Chinese population: evidence from the chinese longitudinal healthy longevity survey study. Front Aging Neurosci. 2021;13:766159.

Article  PubMed  PubMed Central  Google Scholar 

Swarbrick CJ, Partridge JSL. Evidence-based strategies to reduce the incidence of postoperative delirium: a narrative review. Anaesthesia. 2022;77(Suppl 1):92–101.

Article  PubMed  Google Scholar 

Tóth K, Szabó A, Menyhárd J, Benke K, Radovits T, Pólos M, Merkely B, Gál J, Székely A. Poor preoperative nutritional status, but not hormone levels, are associated with mortality after cardiac surgery. J Cardiothorac Vasc Anesth. 2022;36(8 Pt B):3074–83.

Article  PubMed  Google Scholar 

Tsantes AG, Papadopoulos DV, Lytras T, Tsantes AE, Mavrogenis AF, Koulouvaris P, Gelalis ID, Ploumis A, Korompilias AV, Benzakour T, et al. Association of malnutrition with surgical site infection following spinal surgery: systematic review and meta-analysis. J Hosp Infect. 2020;104(1):111–9.

Article  CAS  PubMed  Google Scholar 

Unal N, Guvenc G, Naharci M. Evaluation of the effectiveness of delirium prevention care protocol for the patients with hip fracture: a randomised controlled study. J Clin Nurs. 2022;31(7–8):1082–94.

Article  PubMed  Google Scholar 

van der Wulp K, van Wely MH, Schoon Y, Vart P, Olde Rikkert MGM, Morshuis WJ, van Royen N, Verkroost MWA, Gehlmann HR, Van Garsse LAFM, et al. Geriatric assessment in the prediction of delirium and long-term survival after transcatheter aortic valve implantation. J Thorac Cardiovasc Surg. 2021;161(6):2095-2102.e2093.

Article  PubMed  Google Scholar 

Velayati A, Shariatpanahi MV, Shahbazi E, Shariatpanahi ZV. Association between preoperative nutr