Exploring biomarkers of age in routine diagnostics for the risk stratification of older patients in the emergency department

Objectives

To estimate the association of the routinely applied biological age-related biomarkers hs-TnT, CRP and Hemoglobin (Hb) with mortality for the purpose of older patient's risk stratification in the emergency department (ED).

Design

Exploratory, prospective cohort study with a follow-up at 2.5 years after recruitment start.

Setting and participants

A cardiological emergency department (ED), chest pain unit, of our University Hospital. N=256 cardiological ED patients with a minimum age of 70 years and with an expected life-expectancy above 24h.

Methods

Data from the hospital files were supplemented by a questionnaire. Patients were followed-up for mortality by requesting registry office information.

Results

Among N=256 patients 63 died over the follow-up period. Positive results in each of the three biomarkers alone as well as the combination were associated with increased all-cause mortality at follow-up. The number of positive age-related biomarkers appeared to be strongly indicative of the risk of mortality, even when controlled for major confounders (age, sex, BMI, creatinine clearance, and comorbidity).

Conclusion and implications

In older ED patients, biomarkers explicitly related to biological aging processes such as hs-TnT, CRP and Hb were independently of each other as well as combined associated with an increased risk of all-cause mortality. Thus, they may have the potential to be used to supplement the general risk stratification of older patients in the ED. Validation of the results in a large dataset is needed.

Funding Acknowledgement

Type of funding sources: Foundation. Main funding source(s): Robert Bosch Foundation, Stuttgart, Germany Kaplan-Meier curves with 95% CIKaplan-Meier curves for patients grouped

SPMSQ for risk stratification of older patients in the emergency department : An exploratory prospective cohort study

Background

Risk stratification of older patients in the emergency department (ED) is seen as a promising and efficient solution for handling the increase in demand for geriatric emergency medicine. Previously, the predictive validity of commonly used tools for risk stratification, such as the identification of seniors at risk (ISAR), have found only limited evidence in German geriatric patient samples. Given that the adverse outcomes in question, such as rehospitalization, nursing home admission and mortality, are substantially associated with cognitive impairment, the potential of the short portable mental status questionnaire (SPMSQ) as a tool for risk stratification of older ED patients was investigated.

Objective

To estimate the predictive validity of the SPMSQ for a composite endpoint of adverse events (e.g. rehospitalization, nursing home admission and mortality).

Method

This was a prospective cohort study with 260 patients aged 70 years and above, recruited in a cardiology ED. Patients with a likely life-expectancy below 24 h were excluded. Follow-up examinations were conducted at 1, 3, 6 and 12 month(s) after recruitment.

Results

The SPMSQ was found to be a significant predictor of adverse outcomes not at 1 month (area under the curve, AUC 0.55, 95% confidence interval, CI 0.46–0.63) but at 3 months (AUC 0.61, 95% CI 0.54–0.68), 6 months (AUC 0.63, 95% CI 0.56–0.70) and 12 months (AUC 0.63, 95% CI 0.56–0.70) after initial contact.

Conclusion

For longer periods of observation the SPMSQ can be a predictor of a composite endpoint of adverse outcomes even when controlled for a range of confounders. Its characteristics, specifically the low sensitivity, make it unsuitable as an accurate risk stratification tool on its own.

Electronic supplementary material

The online version of this article (10.1007/s00391-019-01626-z) contains supplementary material, which is available to authorized users.

[Diabetes care and incidence of severe hypoglycemia in nursing home facilities and nursing services: The Heidelberg Diabetes Study]

AIM

The goal of this study was to perform a structured analysis of the treatment quality and acute complications of geriatric patients with diabetes mellitus (DM) cared for by nursing services and nursing home facilities. Secondly, structural problems and potentials for improvement in the care of multimorbid older people with DM treated by nursing homes and nursing services were analysed from the viewpoint of geriatric nurses, managers of nursing homes and general practitioners.

METHODS

In all, 77 older persons with DM from 13 nursing homes and 3 nursing services were included in the analysis (76.6% female, HbA1c 6.9 ± 1.4%, age 81.6 ± 9.9 years). Structural problems and potentials for improvement were collected from 95 geriatric nurses, 9 managers of nursing homes and 6 general practitioners using semistandardized questionnaires.

RESULTS

Metabolic control was too strict in care-dependent older people with DM (mean HbA1c value: 6.9 ± 1.4 %; recommended by guidelines: 7-8%). The measurement of HbA1c was performed in 16 of 77 people (20.8%) within the last year despite a high visitation frequency of the general practitioners (12.7 ± 7.7 within the last 6 months). The incidence of severe hypoglycemia was 7.8%/patient/year. Regarding the management in case of diabetes-related acute complications 33 geriatric nurses (34.7%) stated not having any written standard (nursing home 39%, geriatric services 16.7%).

CONCLUSION

Complex insulin therapies are still used in older people with DM with the consequence of a high incidence of severe hypoglycemia. Concrete management standards in the case of diabetes-related acute complications for geriatric nurses are lacking for more than one third of the nursing services.

[Treatment quality in geriatric patients with diabetes mellitus in various home environments]

OBJECTIVE

The goal of the present study was to systematically assess treatment quality, perceptions, and cognitive function of elderly patients with diabetes admitted to an acute geriatric hospital from different home environments (nursing home residents, home care, assisted living, family caregivers, self-sufficient).

METHODS

Quality of diabetes treatment, metabolic control (HbA(1c)), nutrition, treatment satisfaction, cognition, disability, and level of dependency were assessed in 128 patients with diabetes.

RESULTS

Out of 128 patients, 87 patients (68%) showed an HbA1c≤8% according to the guidelines for aging people with diabetes of the German Diabetes Association (DDG). Compared to patients living independently at home, the metabolic control in nursing home residents and their treatment satisfaction were as good. They had a higher degree of dependency though (Barthel, p<0.001), more strongly impaired mobility (Tinetti, p<0.01), less diabetes knowledge (p<0.001), inferior cognitive performance (MMSE, SPMSQ, p<0.01), and a higher prevalence of depression (GDS) (p<0.01). Better cognitive function correlated with better diabetes knowledge (r=0.49; p<0.001), but not with better metabolic control.

CONCLUSION

The treatment of geriatric patients with diabetes mellitus requires individual considerations and interdisciplinary care. Particularly the continuing education of geriatric nurses could contribute to improved diabetes treatment quality in nursing home residents.