Predictive value of the G8 and the IADL-modified G8 screening tools for postoperative delirium following major urological cancer surgery

Comparison of retroperitoneal laparoscopic radical nephroureterectomy outcomes in elderly patients based on the Geriatric 8 (G8) screening tool

AIM

The Geriatric 8 (G8) screening tool consists of eight questions and is widely used to assess geriatric frailty. This study aimed to compare laparoscopic radical nephroureterectomy outcomes in patients aged >70 years with high and low G8 scores.

MATERIALS AND METHODS

Patients who underwent laparoscopic radical nephroureterectomy at a single center between 2017 and 2022 were included in this study. Patient background and perioperative outcomes were evaluated in two groups: low G8 (<14) and high G8 (≥14). The effects of age and body mass index (BMI) were assessed using logistic regression models adjusted for inverse-probability treatment weighting in the low G8 and high G8, respectively.

RESULTS

In total, 37 cases were categorized as low G8 and 30 cases as high G8. Significant differences in patient background were found in terms of age, BMI, American Society of Anesthesiologists physical status, presence of dementia, and estimated glomerular filtration rate (eGFR). Significant differences in perioperative outcomes were observed in the operative time and number of lymph node dissections. Postoperative delirium and eGFR were significantly higher in the low G8 group. The high G8 group showed significantly higher recurrence-free survival and overall survival rates than the low G8 group. After adjustment using the inverse-probability treatment weighting method, postoperative delirium and eGFR were significantly higher in the low G8 group but there were no significant differences in recurrence-free survival rates, cancer-specific survival, or overall survival.

CONCLUSION

After adjusting for age and BMI, preoperative G8 had a different frequency of postoperative delirium but had no effect on prognosis. Geriatr Gerontol Int 2025; 25: 694-700.

The role of geriatric assessment in the care of older adults undergoing urologic cancer surgery

PURPOSE OF REVIEW

Older adults undergoing urologic cancer surgery have unique needs and require unique risk assessment and management. This review will discuss recent literature on brief screening tools to identify high risk older adults in the preoperative period and the role of comprehensive geriatric assessment (CGA) in identifying and addressing geriatric vulnerabilities for older adults undergoing urologic cancer surgery.

RECENT FINDINGS

Frailty screening tools such as the G8 can be used to identify patients who are at an increased risk of adverse postoperative outcomes such as postoperative complications and prolonged length of stay. CGA can provide more detailed information about geriatric syndromes prior to urologic cancer surgery.

SUMMARY

Screening tools for geriatric vulnerabilities and CGA are valuable tools for the urologist in identifying high-risk older adults, counseling patients on perioperative risk and addressing vulnerabilities prior to surgery. Making health system-wide changes can allow this optimal practice to reach more older surgical patients.

The significance of G8 and other geriatric assessments in urologic cancer management: A comprehensive review

In urologic oncology, which often involves older patients, it is important to consider how to manage their care appropriately. Geriatric assessment (GA) is a method that can address the specific needs of older cancer patients. The GA encompasses various assessment domains, but these domains exhibit variations across the literature. Some of the common items include functional ability, nutrition, comorbidities, cognitive ability, psychosocial disorders, polypharmacy, social and financial support, falls/imbalance, and vision/hearing. Despite the diversity of domains, there is limited consensus on reliable measurement methods. This review discusses the role of GA in managing urologic cancer in unique scenarios, such as those necessitating temporary or permanent urinary catheters or stomas due to urinary diversion. A comprehensive GA is time and human-resource-intensive in real-world clinical practice. Hence, simpler tools such as the Geriatric-8 (G8), capable of identifying high-risk patients requiring a detailed GA, are also under investigation in various contexts. Therefore, we conducted a systematic literature review on the G8. Our findings indicate that patients with low G8 scores encounter difficulties with stoma self-care after urinary diversion and have higher risks of urinary tract infections and ileus after radical cystectomy. The utilization of G8 as a screening tool for urologic cancer patients may facilitate the delivery of appropriate and personalized treatment and care.

Preoperative geriatric assessment of urological patients: a narrative review

PURPOSE OF REVIEW

The proportion of older people is increasing disproportionately. The age between 60 and 65 years is seen as the transition to 'old age'. Frailty is a risk factor for morbidity, mortality, and complications in the context of medical interventions or adverse effects of drug therapies. One of the core components of frailty, the age-related loss of muscle mass, is sarcopenia. Is there an influence of frailty, as well as sarcopenia and some other aspects, i.e. malnutrition, on the outcome in elderly urologic patients?

RECENT FINDINGS

These phenomena of aging correlate with the incidence postoperative complication, infections, readmission rates or mortality. There are numerous studies on the value and informative value of the 5-item frailty index or the G8 questionnaire in older urological patients.

SUMMARY

Geriatric assessment is becoming increasingly important in urological surgery. Simple instruments that are practicable in clinical routine are required in this clinical setting. Which method of preoperative assessment is chosen is secondary. It is important that the risk of geriatric syndromes is assessed prior to surgical interventions in order to determine the most suitable therapeutic approach for each patient.

Comparing Preoperative Screening Tools for Elective Urologic Cancer Surgery: Insights from a Cluster Analysis

INTRODUCTION

The aim of this study was to evaluate the features and benefits of different geriatric screening tools for enhancing the perioperative care of patients who undergo elective cancer surgery using cluster analysis.

METHODS

This study was a retrospective, observational analysis of 1,019 consecutive patients who had elective major cancer surgery in the urology department of our hospital from October 2019 to January 2023. Before the surgery, a trained nurse screened the patients using six tools: Eastern Clinical Oncology Group performance status (ECOG-PS), flemish version of the triage risk screening tool (fTRST), geriatric-8 (G8), instrumental activities of daily living, patient health questionnaire-2 (PHQ-2), and simple questionnaire to rapidly diagnose sarcopenia (SARC-F). The study grouped the patients into four clusters based on their scores on these tools and compared their outcomes after the surgery. The outcomes included overall survival, ambulation failure, delirium, and severe complications. The study also examined how each screening tool was associated with the outcomes.

RESULTS

Based on their clinical data and screening results, we classified the patients into four groups: Healthy (73%), Depressive (11%), Intermediate (11%), and Unhealthy (5%). The Unhealthy group had the worst outcomes in overall survival (OS), ambulation failure, and delirium, followed by the Intermediate group. In addition, fTRST and SARC-F emerged as significant predictors of OS; ECOG-PS, fTRST, G8, and SARC-F of ambulation failure; ECOG-PS, fTRST, and G8 of delirium; and G8 of severe complications.

CONCLUSION

Various geriatric screening tools were found to have the potential to forecast diverse postoperative outcomes.

An exploratory study on the heterogeneity of postoperative delirium: Preoperative cognitive screening does not detect hallucinatory delirium risk

INTRODUCTION

This study compared the clinical characteristics of patients who had hallucinations and those who did not during delirium after elective cancer surgery.

MATERIALS AND METHODS

This study retrospectively observed 1137 consecutive patients who had preoperative screening by a trained nurse before elective major urologic cancer surgery in our department. We compared the patient characteristics, including mini-cognitive assessment instrument (Mini-Cog) and Geriatric-8 (G8) scores, between those who developed postoperative delirium and those who did not, and also between those who had hallucinations and those who did not during delirium.

RESULTS

Out of 1137 patients, 68 developed postoperative delirium, and 12 of them had hallucinations. A hierarchical cluster analysis based on the G8 and Mini-Cog scores divided the patients into two groups: one with high G8 and cognitive function (36 patients) and one with low G8 and cognitive function (32 patients). Hallucinations during delirium were more frequent in the high G8 and cognitive function group (11 out of 36 patients) than in the low G8 and cognitive function group (one out of 32 patients). Patients who had hallucinations during delirium also had higher preoperative Mini-Cog scores (P = 0.002) and G8 scores (P = 0.03) than those who did not, indicating better cognitive function and less frailty.

DISCUSSIONS

We identified a patient population that is prone to hallucinations that preoperative screening tools cannot detect. This suggests the heterogeneity of postoperative delirium and the need for further research.

Predictive value of the G8 screening tool for postoperative complications in older adults undergoing cancer surgery: A systematic review and meta-analysis

INTRODUCTION

Older adults with cancer who are being considered for cancer surgery are heterogenous, with variation in their physical, mental, and social baselines and risk of postoperative complications. Due in part to the complex nature of this population, the optimal preoperative evaluation method is not clearly defined. In this study we investigated whether geriatric-8 (G8), a screening tool for older patients with cancer that determines the need for a full geriatric assessment, is suitable for assessing the risk of postoperative complications in this population being considered for surgery.

MATERIALS AND METHODS

Studies that enrolled older patients undergoing cancer surgery and compared prevalence of postoperative complications in G8 "high" (≥15) patients and G8 "low" (<15) patients were identified using PubMed and EMBASE. A meta-analysis was conducted to calculate the risk ratio of postoperative complication rate. Postoperative mortality was systematically reviewed.

RESULTS

Eleven studies published between 2017 and 2022 were included in our analysis with a total of 2,691 older patients who underwent various types of cancer surgery and were characterized by their G8 scores: 1,255 G8 high (≥15) patients and 1,436 G8 low (<15) patients. G8 low patients had a significantly higher prevalence of postoperative complications than G8 high patients (risk ratio [95% confidence interval]: 1.56 [1.18-2.07], p = 0.002, I2 = 79%).

DISCUSSION

G8 can be an effective and efficient preoperative tool to assess risk of postoperative complications in older adults undergoing cancer surgery and identify potential need for further evaluation of an individual's risk with a comprehensive geriatric assessment.

Housework participation and mortality in Japanese male patients undergoing cancer surgery: A propensity score-matched study

BACKGROUND

Participation in housework and meal preparation are instrumental activity of daily living (IADL) evaluation items that is known to predict prognosis and complications in cancer care. However, these items are often assessed only for females, not for males, in IADL.

METHODS

We examined the impact of habit of housework and meal preparation on overall survival (OS) in 1025 Japanese male patients who underwent elective urologic cancer surgery at our institution. The study also used a cohort that was matched by propensity score.

RESULTS

We found that patients who did not prepare meals or do housework had significantly shorter OS (hazard ratio [HR] = 3.34, P = 0.005; HR = 5.01, P < 0.001, respectively). Even in the cohort of 448 patients matched by propensity score and adjusted for age, body mass index, comorbidities, performance status, living status, cancer type, stage groups of cancer, and surgical approach, lack of participation in housework was associated with shorter OS (HR = 2.92, P = 0.04) and was an independent predictor of worse OS in multivariable analysis (HR = 5.13, P = 0.008).

CONCLUSIONS

Males who did not regularly do household chores before elective cancer surgery had worse life outcomes. Doing more daily physical activities, such as household chores like making the bed and cleaning the room, might have a positive impact on survival when fighting cancer.

Surgical Tolerability and Frailty in Elderly Patients Undergoing Robot-Assisted Radical Prostatectomy: A Narrative Review

Simple Summary

Life expectancy in Western countries and East Asian countries has incremented over the past decades, resulting in a rapidly aging world, while in general, radical prostatectomy (RP) is not recommended in elderly men aged ≥75 years. Together with the evolving technique of robotic surgeries, surgical indications for RP should be reconsidered in ‘elderly’ and ‘frail’ men, since this procedure has now become one of the safest and most effective cancer treatments for prostate cancer. One important element to determine surgical indications is surgical tolerability. However, evidence is scarce regarding the surgical tolerability in elderly men undergoing robot-assisted radical prostatectomy (RARP). In this review, we focused on the surgical tolerability in ‘elderly’ and/or ‘frail’ men undergoing RARP, with the intent to provide up-to-date information on this matter and to support the decision making of therapeutic options in this spectrum of patients.

Abstract

Robot-assisted radical prostatectomy (RARP) has now become the gold standard treatment for localized prostate cancer. There are multiple elements in decision making for the treatment of prostate cancer. One of the important elements is life expectancy, which the current guidelines recommend as an indicator for choosing treatment options. However, determination of life expectancy can be complicated and difficult in some cases. In addition, surgical tolerability is also an important issue. Since frailty may be a major concern, it may be logical to use geriatric assessment tools to discriminate ‘surgically fit’ patients from unfit patients. Landmark studies show two valid models such as the phenotype model and the cumulative deficit model that allow for the diagnosis of frailty. Many studies have also developed geriatric screening tools such as VES-13 and G8. These tools may have the potential to directly sort out unfit patients for surgery preoperatively.