Emergency Department Utilization by Noninstitutionalized Elders

OBJECTIVES: To the best of the authors' knowledge, no nationally representative, population-based study has characterized the proportion of elders using the emergency department (ED) and factors associated with ED use by elders. This article describes the proportion of elder Medicare beneficiaries using the ED and identifies attributes associated with elder ED users as compared with nonusers. METHODS: The 1993 Medicare Current Beneficiary Survey was used, a national, population-based, cross-sectional survey of Medicare beneficiaries linked with Medicare claims data. The study population was limited to 9,784 noninstitutionalized individuals aged 66 years or older. The Andersen model of health service utilization was used, which explains variation in ED use through a combination of predisposing (demographic and social), enabling (access to care), and need (comorbidity and health status) characteristics. RESULTS: Eighteen percent of the sample used the ED at least once during 1993. Univariate analysis showed ED users were older; were less educated and lived alone; had lower income and higher Charlson Comorbidity Index scores; and were less satisfied with their ability to access care than nonusers (p < 0.01, chi-square). Logistic regression identified older age, less education, living alone, higher comorbidity scores, worse reported health, and increased difficulties with activities of daily living as factors associated with ED use (p < 0.05). Need characteristics predicted ED use with the greatest accuracy. CONCLUSIONS: The proportion of elder ED users is slightly higher than previously reported among Medicare beneficiaries. Need (comorbidity and health status) characteristics predict ED utilization with the greatest accuracy.     

Low Plasma Thiamine Levels in Elder Patients Admitted through the Emergency Department

OBJECTIVES: To determine the prevalence of thiamine deficiency in a high-risk group of elder emergency department (ED) patients who reside in nursing homes and need admission to the hospital, and to determine the effect of patients' diets on this prevalence. METHODS: This was an observational pilot study of 75 consecutive ED patients aged 65 years or older who lived in a nursing home and were admitted to the hospital. Plasma thiamine levels were measured by high-pressure liquid chromatography on serum samples collected within 24 hours of hospital admission. Nursing home records were reviewed to determine whether patients received nutritional supplementation or enteral tube feedings. RESULTS: Seventy patients participated and had a mean plasma thiamine level of 27.3 microg/dL (95% CI = 20.2 to 34.4). Fourteen percent (n = 10, 95% CI = 8% to 24%) were thiamine-deficient (<10 microg/dL). Patients not receiving dietary supplements or tube feedings (n = 26) had lower mean thiamine levels (20.3 microg/dL, 95% CI = 12.7 to 27.9) and were thiamine-deficient more often (27%) than patients receiving dietary support (n = 44, 31.5 microg/dL, 95% CI = 24.7 to 38.3, 7% thiamine-deficient). CONCLUSIONS: Elder nursing home patients seen in the ED and admitted to the hospital are frequently thiamine-deficient. Empiric thiamine supplementation is often used in the ED for other high-risk patients, such as alcoholic individuals, and may be appropriate for high-risk elder patients. Further research is needed to determine whether thiamine supplementation in these patients can improve their clinical outcomes.     

Geriatric Syncope and Cardiovascular Risk in the Emergency Department

Background

Syncope is a transient loss of consciousness that is caused by a brief loss in generalized cerebral blood flow.

Risk Assessment and the Impact of Point of Contact Intervention Following Emergency Department Presentation with a Fall

Aim: To determine whether a multifactorial intervention can decrease the frequency of secondary falls in older patients presenting to an emergency department with a fall. Methods: A randomized control design comparing multifactorial follow-up intervention to standard care. Risk assessments included Falls Risk for Older Persons—Community Setting Screening Tool (FROP Com Screen) and the Two Item Screening Tool, which were compared for sensitivity. Results: Eight patients (14%) in the control group and 11 patients (20.8%) in the intervention group experienced falls (p = 0.373). The proportion of those identified as high risk that fell was similar between the FROP Com Screen (17%) and the Two Item Screening Tool (17%). Patients on average waited 35 days in the control group and 40 days in the intervention group for an outpatient appointment. Conclusions: There was no significant benefit of the intervention. Our findings support interdisciplinary collaboration, multifactorial intervention, and risk management for falls prevention.     

Violence Risk Assessment in the Emergency Department

IntroductionWorkplace violence is a prevalent problem in health care, with mental health and emergency departments being the most at-risk settings. The aim of this evidence-based practice project was to pilot use of a violence risk assessment tool, the Broset Violence Checklist, to assess for risk of type II violence and record the interventions that nurses chose to implement to mitigate the situation. Additionally, reports made to the hospital reporting system were tracked and compared to previous reporting frequency.MethodsFollowing staff education, nurses were instructed to complete checklists for all patients who have a score of 1 or higher, which indicates the presence of at least 1 high-risk behavior, and continue hourly scoring until the score returned to 0 or the patient was dispositioned. The number of incidents recorded, time of day, scores, interventions applied to mitigate violence, and change in scores after interventions were evaluated. The number of Broset Violence Checklist scoring sheets submitted and reports made via the hospital reporting system were compared.ResultsIncidents were most frequent from 11 am until 3 am. The highest scores occurred in the late evening and early morning hours. There were significantly more incidents captured with the use of the Broset Violence Checklist as compared to the hospital reporting system. Incidents significantly associated with higher scores included providing comfort measures, addressing concerns, and applying restraints.DiscussionThe Broset Violence Checklist was used successfully in the emergency department setting to identify behaviors associated with violence. Under-reporting to the hospital report system was identified in this project, consistent with reports in the literature. Specific interventions were not associated with a decrease in Broset Violence Checklist scores.     

Screening for Geriatric Problems in the Emergency Department: Reliability and Validity

Abstract. Objective: lb determine the test-retest reliability and concurrent criterion validity of a self-report ED screening questionnaire for adverse outcomes in elders.
Methods: A cohort of 1,885 patients aged ≤ 65 years were recruited from the EDs of 4 Montreal hospitals. Patients were excluded if they could not be interviewed because of their clinical status or cognitive impairment and no informant was available. The screening questionnaire, administered in the ED, contained 27 items on social, physical, and mental risk factors, medical history, and use of hospital services, medications, and alcohol. A random sample of 404 patients were invited to participate in a clinical assessment 1–3 weeks after the ED visit, that included re-administration of the screening questionnaire, and standardized instruments to assess disability, social resources, depression, alcohol use and abuse, and current medications.
Results : Study data were collected from 221 patients (54.7%), of whom 193 were included in the test-retest reliability analyses and 213 in the analyses of concurrent validity. The concordance correlation coefficient for test-retest reliability of the risk factor score was 0.78 (95% confidence interval: 0.71, 0.83; n = 193). Several screening questions showed moderately good agreement with the appropriate criterion standard, particularly those on visual and hearing impairment, depression, and use of medications. The best subset of 9 screening questions explained approximately half of the variance in the total disability score.
Conclusions: The screening questionnaire score has good test-retest reliability, but individual screening questions have, at best, modest concurrent validity. The final set of screening questions should be selected based on their predictive validity.     

Accuracy of the Emergency Severity Index Triage Instrument for Identifying Elder Emergency Department Patients Receiving an Immediate Life‐saving Intervention

Objectives: The study objective was to determine the sensitivity and specificity of the Emergency Severity Index (ESI) triage instrument for the identification of elder patients receiving an immediate life‐saving intervention in the emergency department (ED). Methods: The authors reviewed medical records for consecutive patients 65 years or older who presented to a single academic ED serving a large community of elders during a 1‐month period. ESI triage scores were compared to actual ED course with attention to the occurrence of an immediate life‐saving intervention. The sensitivity and specificity of an ESI triage level of 1 for the identification of patients receiving an immediate intervention was calculated. For 50 cases, the triage nurse ESI designation was compared to the triage level determined by an expert triage nurse based on retrospective record review. Results: Of 782 consecutive patients 65 years or older who presented to the ED, 18 (2%) had an ESI level of 1, 176 (23%) had an ESI level of 2, 461 (60%) had an ESI level of 3, 100 (13%) had an ESI level of 4, and 18 (2%) had an ESI level of 5. Twenty‐six patients received an immediate life‐saving intervention. ESI triage scores for these 26 individuals were as follows: ESI 1, 11 patients; ESI 2, nine patients; and ESI 3, six patients. The sensitivity of ESI to identify patients receiving an immediate intervention was 42.3% (95% confidence interval [CI] = 23.3% to 61.3%); the specificity was 99.2% (95% CI = 98.0% to 99.7%). For 17 of 50 cases in which actual triage nurse and expert nurse ESI levels disagreed, undertriage by the triage nurses was more common than overtriage (13 vs. 4 patients). Conclusions: The ESI triage instrument identified fewer than half of elder patients receiving an immediate life‐saving intervention. Failure to follow established ESI guidelines in the triage of elder patients may contribute to apparent undertriage. ACADEMIC EMERGENCY MEDICINE 2010; 17:238–243 © 2010 by the Society for Academic Emergency Medicine     

Advance Directives in the Emergency Department: Too Few, Too Late

Objective: To determine: 1) the number of patients arriving at the ED who had executed an advance directive (AD), 2) how many of the patients who had an AD brought the AD with them, and 3) whether those patients who did not have an AD had ever discussed ADs with their primary care providers (PCPs) or had ever heard of an AD.
Methods: A cross-sectional, observational survey of a convenience sample of high-risk patients presenting to the ED of a university hospital was performed. Patients presenting to the ED for acute complaints who were elderly or had an underlying disease that suggested a risk of death in the near future were considered high risk.
Results: Of the 238 patients surveyed, 90% had PCPs. However, only 22% had ADs. Of these, only 23% brought the AD to the ED. Of the patients who did not have ADs, 95% had never discussed ADs with their PCPs, and 42% did not know what an AD was. Blacks were less likely than whites to have ADs (p < 0.0002) or to know about them (p < 0.004).
Conclusion: The majority of high-risk patients presenting to this ED do not have ADs. Among those high-risk patients who did have ADs, fewer than 25% brought the ADs with them. The development of ADs for high-risk patients and the availability of ADs in the ED are woefully inadequate. Emergency physicians need to collaborate with PCPs to remedy these deficiencies.     

Emergency Department Evaluation of Geriatric Patients with Acute Cholecystitis

Objective : To estimate the frequency of abnormal clinical symptoms, laboratory tests, and diagnostic imaging studies in the ED assessment of elderly (≥65 yr) patients with acute cholecystitis, and to compare these factors in the young-old (65–74 yr), middle-old (75–84 yr), and old-old (≥85 yr) population groups.
Methods : A retrospective, cross-sectional study was performed by review of ED records, hospital charts, and surgical operative reports of consecutive elderly ED patients determined at surgery to have acute cholecystitis. Records were reviewed between April 1990 and April 1995 at a large Midwestern tertiary care facility with 65,000 annual ED patient visits. Clinical signs and symptoms were compared in the young-old, middle-old, and old-old population groups.
Results : Of the 168 patients reviewed, 141 (84%) had either epigastric or right upper quadrant abdominal pain, and 8 (5%) had no pain whatsoever. Only 61 patients (36%) had back or flank pain radiation. Ninety-six (57%) experienced nausea, 64 (38%) had emesis, and 13 (8%) had visible jaundice. Ninety-four (56%) patients were afebrile and 69 (41%) had no increase of white blood cell count. Twenty-two (13%) patients had no fever and all tests were normal. No statistical difference was noted in any symptom or laboratory factor for the 3 age groups, except jaundice was more common among the patients aged ≥85 years. Ultra-sonography was diagnostic for 91%, and CT was beneficial for only 1 patient. Eight patients had normal results on their ultrasonographic and CT studies.
Conclusion : Classic symptoms and abnormal blood test results are frequently not present in geriatric patients with acute cholecystitis. Increasing age does not appear to affect the clinical and test markers used by clinicians to diagnose this illness. A high degree of awareness is essential for correct diagnosis of acute cholecystitis in geriatric patients.     

The Six-item Screener to Detect Cognitive Impairment in Older Emergency Department Patients

Background:  Cognitive impairment due to delirium or dementia is common in older emergency department (ED) patients. To prevent errors, emergency physicians (EPs) should use brief, sensitive tests to evaluate older patient's mental status. Prior studies have shown that the Six-Item Screener (SIS) meets these criteria.
Objectives:  The goal was to verify the performance of the SIS in a large, multicenter sample of older ED patients.
Methods:  A prospective, cross-sectional study was conducted in three urban academic medical center EDs. English-speaking ED patients ≥65 years old were enrolled. Patients who received medications that could affect cognition, were too ill, were unable to cooperate, were previously enrolled, or refused to participate were excluded. Patients were administered either the SIS or the Mini-Mental State Examination (MMSE), followed by the other test 30 minutes later. An MMSE of 23 or less was the criterion standard for cognitive impairment; the SIS cutoff was 4 or less for cognitive impairment. Standard operator characteristics of diagnostic tests were calculated with 95% confidence intervals (CIs), and a receiver operating characteristic curve was plotted.
Results:  The authors enrolled 352 subjects; 111 were cognitively impaired by MMSE (32%, 95% CI = 27% to 37%). The SIS was 63% sensitive (95% CI = 53% to 72%) and 81% specific (95% CI = 75% to 85%). The area under the receiver operating characteristic curve was 0.77 (95% CI = 0.72 to 0.83).
Conclusions:  The sensitivity of the SIS was lower than in prior studies. The reasons for this lower sensitivity are unclear. Further study is needed to clarify the ideal brief mental status test for ED use.     

Does Functional Decline Prompt Emergency Department Visits and Admission in Older Patients?

Background: Older patients may visit the emergency department (ED) when their illness affects their function. Objectives: To quantify the function of older ED patients, to assess whether functional decline (FD) had occurred, and to determine whether function contributes to the ED visit and hospital admission. Methods: The authors performed an institutional review board–approved, prospective, cross‐sectional study in a community teaching hospital ED. Eligible patients were older than 74 years of age, with an illness at least 48 hours old. Patients from a nursing facility and those without a proxy who were unable or unwilling to complete the questions were excluded. The Older Americans Resources and Services Questionnaire, which tests seven instrumental activities of daily living (IADL) and seven physical ADLs (PADL), was used. Data are presented as means or proportions with 95% confidence intervals (95% CI), and comparisons as 95% CI for the difference between proportions. Results: The authors enrolled 90 patients (mean age, 81.6 yr [SD ± 4.9], 40% male). Dependence in at least one IADL was reported by 68% (95% CI = 57% to 77%), and in at least one PADL by 61% (95% CI = 50% to 71%). Functional decline was reported by 74% (95% CI = 64% to 83%). Two thirds of those with IADL decline and three quarters of those with PADL decline said that this contributed to their ED visit. Seventy‐seven percent with, and 63% without, IADL decline were admitted (14% difference, 95% CI =?6.1% to 33%). Seventy‐nine percent with and 61% without PADL decline were admitted (18% difference, 95% CI =?1.4% to 38%). Conclusions: Functional decline is common in older ED patients and contributes to ED visits in older patients; its role in admission is unclear.     

Impact of Physical Activities on Frailty in Community-Dwelling Older Women

Aims: The aim of the study was to determine whether increased physical activities (PA) affect frailty for old women, 75 years and older (OO), compared to 60–74 years old (YO). Methods: This cross-sectional study measured 19 frailty indicators (muscle strength and endurance, balance, gait characteristics, and function), using 46 community-dwelling women. PA were divided into three levels by caloric expenditure per week (<2,000 kcal/week, 2,000–3,999 kcal/week, >4,000 kcal/week). Results: As PA level increased, a gap (=difference) between OO and YO narrowed for step length and function, but for quadriceps strength and endurance, a gap widened. Conclusions: Frailty progresses with aging but older women who engage in a high level of physical activity (>4,000 kcal/week) can increase mobility and functional capacity, but not for muscle strength and endurance. Starting regular resistance training activities early in the aging process is critical to improve or maintain muscle quality to offset age-related frailty.     

Predictors of Repeat Emergency Department Visits by Elders

Objective: To determine which characteristics of older patients who use a hospital ED are associated with repeat visits during the 90 days following the index visit.
Methods: The study was conducted in the ED of a 400-bed university-affiliated acute care community hospital in Montreal. Patients aged ≥75 years who visited the ED between 08:00 and and 16:00 on a convenience sample of days over an 8-week period (July and August 1994) were assessed using a questionnaire, physical and cognitive status instruments, and a functional problem checklist. The hospital's administrative database was used to identify repeat visits during the 90 days following the ED visit. The representativeness of the sample was assessed by analyses of ED visits made by 4,466 persons aged ≥65 years during a 12-month period (September 1993 to August 1994) using the hospital's administrative database.
Results: 256 patients aged ≥75 years visited the ED during the study period and 167 were assessed. Of these, 54 (32%) were admitted to the hospital. Among the 113 patients released from the ED, 27 (24%) made repeat visits during the next 90 days. In univariate analyses, repeat visits were significantly associated with the number of functional problems, cognitive impairment, and previous ED visits. In multiple logistic regression, male gender, living alone, and number of functional problems were independent predictors of repeat visits. In the administrative data analyses, nighttime arrival to the ED for the index visit was significantly associated with repeat visits.
Conclusions: Self-reported risk factors can help to identify a group of elders likely to make repeated ED visits; the development of a screening instrument incorporating questions on these problems and implementation of appropriate interventions might improve these patients' quality of life and reduce the demand for further ED care in this age group.     

Effectiveness of an Organized Follow-up System for Elder Patients Released from the Emergency Department

Objectives : To determine whether an effective telephone callback system can be successfully implemented in a busy ED and to quantify the benefits that can be obtained related to the follow-up care of elder patients.
Methods : This was a prospective, cohort study conducted at a community teaching hospital during a 6-month period. Consecutive patients ≥60 years old and released from the ED were selected for telephone follow-up. Calls were made by a research nurse within 72 hours after the patient's ED visit. Follow-up information included current medical status, problems encountered during the ED visit, compliance, and impact of the illness on self-care capabilities.
Results : Seventy-nine percent (831/1,048) of the patients selected for telephone follow-up were successfully contacted. The calls lasted an average of 4 ± 2.5 minutes. Although 94% (778/831) of these patients had a regular physician, 14% failed to make their recommended follow-up arrangements. Compliance was significantly improved when a follow-up physician was contacted during the patient's ED visit. Approximately 96% of the patients were either satisfied or very satisfied with their ED care. However, 13% (109/831) had moderate deterioration in their ability to care for themselves. Of the patients contacted, 333 (40%) required further clarification of their home care instructions, 31 were advised to return to the ED for reevaluation, and 26 were referred to a medical social worker for psychosocial concerns.
Conclusion : A telephone callback system is a feasible and effective method to improve follow-up care of elder patients released from the ED.     

床旁超声量化评估重症患者肌肉的研究进展

重症监护室(ICU)患者意识水平的限制给肌力评估带来巨大的挑战,而肌肉超声检查无需患者配合,且能够客观地观察到肌肉横截面积、厚度、回声强度和羽状角等参数的显著变化,可在ICU早期识别肌肉萎缩。同时,肌肉超声技术易被ICU医生和护士掌握,表现出良好的信度,对识别ICU获得性衰弱高风险患者有一定的意义。此外,超声量化评估肌肉对预测患者结局具有良好的价值。目前仍缺乏超声对ICU获得性衰弱诊断价值的大样本研究,标准化的超声评估方案亦需进一步探讨。