Preoperative Nutritional Status and Risk for Subsyndromal Delirium in Older Adults Following Joint Replacement Surgery

Undernutrition, Sarcopenia, Sarcopenic Obesity, and Sarcopenic Undernutrition: A Cross-sectional View on Patients Before Total Joint Arthroplasty

Diagnostic criteria of malnutrition phenotypes have been recently updated. Uncovering the prevalence of these conditions in patients undergoing hip replacement may be crucial in order to apply the most appropriate diagnostic-therapeutic paths to the right patient at the right time. Sixty patients aged between 60 and 85 undergoing elective hip replacement were recruited. Preoperative measures concerning eating behaviors, anthropometry, physical performance, laboratory parameters, and patient reported measures of pain and function were collected, used to make diagnosis, and explored whether they differed based on malnutrition categorization. Patients undernourished were 18.75%, sarcopenic 13.34%, sarcopenic obesity 4.26%, and 8.88% undernourished and sarcopenic. Well-nourished patients ate more cereals and meat, exhibited lower white blood cells but higher lymphocytes, and reported greater hip-related pain. One in three older patients undergoing elective hip replacement was malnourished. Eating behaviors and leucocytes were the discriminating factors between malnourished and well-nourished. It remains to be established whether malnutrition affects outcome after surgery.

A novel nomogram for the prediction of subsyndromal delirium in patients in intensive care units: A prospective, nested case-controlled study

BACKGROUND

Subsyndromal delirium is a dynamic, recognizable condition commonly observed in intensive care unit (ICU) patients that can lead to poor patient prognosis, and its prompt recognition and management can prevent disease progression. However, no evidence-based predictive tool has been developed specifically to assess the occurrence of subsyndromal delirium in the ICU.

OBJECTIVE

To develop and validate a novel, simple and effective tool for estimating the risk of subsyndromal delirium among ICU patients.

DESIGN

A prospective, nested case-controlled study.

DATA SOURCES

A total of 731 patients were recruited from the central ICU of a tertiary hospital in southwestern China from August 2021 to November 2022.

METHODS

The least absolute shrinkage and selection operator was applied to screen potential features for univariate and multivariate logistic regression. A nomogram was constructed using the selected variables. The performance of the nomogram was evaluated by combining the area under the receiver operating characteristic curve (AUC), calibration curves and decision curve analysis (DCA).

RESULTS

The prevalence of subsyndromal delirium among ICU patients was 23.06 %. Multiple logistic regression analysis revealed that the independent predictive factors for subsyndromal delirium among ICU patients were vision impairment, a history of falls, the use of restraint, blood transfusion, the use of antibiotics, surgery, the Caprini score, and the Braden score, all of which were used to construct the nomogram. The AUCs for the model were 0.710 (95 % CI, 0.654-0.766, P < 0.001) and 0.825 (95 % CI, 0.732-0.917, P < 0.001) in the training and validation cohorts, respectively, indicating that the model had high accuracy in distinguishing patients with and without subsyndromal delirium. The calibration curve of the nomogram showed good consistency between the predicted and actual probabilities. The DCA indicated that the nomogram has clinical application for patients in the ICU.

CONCLUSIONS

We developed an easy-to-use nomogram for identifying subsyndromal delirium in ICU patients with satisfactory predictive ability based on simple and easily accessible clinical features. The nomogram can identify ICU patients at high-risk for subsyndromal delirium and may be a useful subsyndromal delirium tool for current ICU physicians.

Prevalence and risk factors of subsyndromal delirium among postoperative patients: A systematic review and meta-analysis

AIM

The aim of this study is to determine the prevalence and risk factors for subsyndromal delirium in the postoperative patient.

DESIGN

A systematic review and meta-analysis.

METHODS

The Review Manager 5.3 statistics platform and the Newcastle-Ottawa Scale were used for quality evaluation.

DATA SOURCES

The following databases were searched: PubMed, Web of Science, EMBASE, The Cochrane Library, Scopus and EBSCO from January 2000 to December 2021. Additional sources were found by looking at relevant articles' citations.

RESULTS

A total of 1744 titles were originally identified, and five studies including 962 patients were included in the systematic review, with a pooled prevalence of postoperative subsyndromal delirium (PSSD) of 30% (95% CI: 0.28-0.32). Significant risk variables for PSSD were older age, low levels of education (≤9 years), cognitive impairment, higher comorbidity score, and the duration of operation.

CONCLUSION

PSSD is prevalent and is associated with a variety of risk factors as well as low academic performance.

IMPACT

Identification and clinical management of patients with PSSD should be improved. Future research on PSSD risk factors should look at a wider range of intraoperative and postoperative risk factors that can be changed.

PATIENT AND PUBLIC CONTRIBUTION

No Patient or Public Contribution.

Perioperative cognition in association with malnutrition and frailty: a narrative review

Postoperative delirium (POD) is a prevalent clinical entity characterized by reversible fluctuating altered mental status and cognitive impairment with acute and rapid onset a few days after major surgery. Postoperative cognitive decline (POCD) is a more permanent extension of POD characterized by prolonged global cognitive impairment for several months to years after surgery and anesthesia. Both syndromes have been shown to increase morbidity and mortality in postoperative patients making their multiple risk factors targets for optimization. In particular, nutrition imparts a significant and potentially reversible risk factor. Malnutrition and frailty have been linked as risk factors and predictive indicators for POD and less so for POCD. This review aims to outline the association between nutrition and perioperative cognitive outcomes as well as potential interventions such as prehabilitation.

Knowledge, attitudes and practices of ICU nurses regarding subsyndromal delirium among 20 hospitals in China: a descriptive cross-sectional survey

OBJECTIVES

This study sought to investigate nurses' knowledge, attitudes and practices, and analyse the influencing factors for subsyndromal delirium (SSD).

DESIGN

A descriptive cross-sectional survey.

SETTING

E-questionnaires were distributed to intensive care unit (ICU) nurses from 20 tertiary-grade, A-class hospitals in Henan Province, China.

PARTICIPANTS

A total of 740 ICU nurses participated in the questionnaire survey.

MAIN OUTCOME MEASURES

Each dimension score is converted to a percentage scale. A score of ≤60% on each dimension of the questionnaire was considered a negative score, <80% was considered a intermediate score and ≥80% was considered an excellent score.

RESULTS

A total of 733 questionnaires were included in the study. More than half of the nurses were at the intermediate level, and a few nurses were at the excellent level. Nurses self-assessed their level of knowledge was intermediate. In the attitudes dimension, nurses' attitudes were negative. The results of the practical dimension showed that most nurses could carry out the clinical practice. Multiple linear regression analysis showed that educational level and received SSD training were influencing factors.

CONCLUSIONS

ICU nursing staff overestimated their knowledge of SSD and showed a negative attitude towards it. Various forms of education and training are necessary.

Brain Prehabilitation for Oncologic Surgery

PURPOSE OF REVIEW

This review aims to summarize the current research on postoperative cognitive complications, such as delirium and cognitive dysfunction. This includes discussion on preoperative preventive strategies, such as physical and nutritional prehabilitation as well as up-to-date information on neuroprehabilitation.

RECENT FINDINGS

Current recommendations for prevention of postoperative delirium have focused on multicomponent interventions. The optimal composition of surgical prehabilitation programs targeting exercise and nutrition has not yet been established. The Neurobics Trial shows that cognitive prehabilitation improves cognitive reserve and may be a useful addition to multimodal surgical prehabilitation. Perioperative management of oncologic patients is often associated with a myriad of challenges, such as the management of tumor-related pathologies, adverse events from neoadjuvant therapy, and chronic metabolic and immunological changes associated with malignancy. In addition, oncologic patients are at increased risk of developing frailty, which adversely affects postoperative recovery and further cancer treatment. As a result, oncologic patients are at considerable risk of developing postoperative cognitive complications, such as delirium and cognitive dysfunction. In this review, we discuss the effect of prehabilitation on postoperative cognitive outcomes.