Emergency Severity Index version 4: clarifying common questions

The Accuracy of Sepsis Screening Score for Mortality Prediction at Emergency Department Triage

Introduction

Sepsis has a mortality rate of 10–40% worldwide. Many screening tools for sepsis prediction and for emergency department (ED) triage are controversial. This study compared the accuracy of the scores for predicting 28-day mortality in adult patients with sepsis in the triage area of the ED.

Methods

Adult patients who presented to the ED of a tertiary-care university hospital from January–December 2019 with an initial diagnosis of sepsis or other infection-related conditions were enrolled. We calculated predictive scores using information collected in the ED triage area. Prognostic accuracy was measured by the area under the receiver operating characteristic curve (AUROC) for predicting 28-day mortality as a primary outcome. The secondary outcomes included mechanical ventilation usage and vasopressor usage for 28 days.

Results

We analyzed a total of 550 patients. The 28-day mortality rate was 12.4% (n = 68). The 28-day mortality rate was best detected by the National Early Warning Score (NEWS) (AUROC = 0.770; 95% confidence interval [CI]: 0.705–0.835), followed by the quick Sequential Organ Failure Assessment (qSOFA) score (AUROC = 0.7473; 95% CI: 0.688–0.806), Search Out Severity (SOS) score (AUROC = 0.749; 95% CI: 0.685–0.815), Emergency Severity Index (ESI) triage (AUROC = 0.599; 95% CI: 0.542–0.656, and the Systemic Inflammatory Response System (SIRS) criteria (AUROC = 0.588; 95% CI: 0.522–0.654]). The NEWS also provided a higher AUROC and outperformed for 28-day mechanical ventilator usage and 28-day vasopressor usage.

Conclusion

The NEWS outperforms qSOFA, SOS, SIRS, and ESI triage in predicting 28-day mortality, mechanical ventilator, and vasopressor usage of a patient with sepsis who is seen at ED triage.

Practice Pattern Variation in Test Ordering for Low-Acuity Pediatric Emergency Department Patients

OBJECTIVES

Rising costs in healthcare have focused attention on interventions to optimize efficiency of patient care, including decreasing unnecessary diagnostic testing. The primary objective of this study was to determine the variability of laboratory and radiology testing among licensed independent providers (LIPs) with different training backgrounds treating low-acuity patients in a pediatric emergency department (PED).

METHODS

We performed a retrospective review of the electronic health records of all encounters with patients 21 years or younger, triaged as low-acuity, visiting 2 urban, academic PEDs from January 2012 to December 2013. We calculated frequency of orders for specific tests, including complete blood counts, aerobic blood cultures, urine cultures, and chest radiographs. Bivariable analyses were used to measure associations of test ordering between these LIP dyad groups: physician versus nurse practitioner (NP); physicians with pediatric emergency medicine fellowship training (PEM) versus physicians without PEM training and physicians with at least 5 years since residency graduation versus less than 5 years. We used multivariable logistic regression to adjust for potential confounders, including ED location, trainee co-management, and patient characteristics. We also performed sensitivity analyses by location.

RESULTS

There were 148,570 total encounters treated by 12 NPs and 144 physicians, of whom 60 were PEM physicians. Seventy-three physicians had 5 or more years of experience. Testing rates per patient encounter ranged from 0% to 40% for individual providers. In bivariable analyses, testing was more likely when the LIP was a physician (odds ratio [OR] = 1.2, 95% confidence interval = 1.1-1.2) or PEM trained (OR = 1.3, 1.2-1.3). In multivariable analyses, testing was more likely for encounters with PEM providers (adjusted OR [AdjOR] = 1.2, 1.1-1.3). A sensitivity analysis on a subset of encounters seen exclusively at our PED-based urgent care revealed that testing was also more likely for encounters seen by PEM physicians (AdjOR = 1.5, 1.4-1.7) and with NPs (AdjOR = 1.2, 1.1-1.4) compared with physicians.

CONCLUSIONS

Our study identified substantial variation in test ordering patterns for LIPs treating low-acuity patients. There were significant differences in ordering practices between providers from different training backgrounds, most significantly when comparing PEM with non-PEM providers. Further research should examine interventions to standardize practice across disciplines.

Comparison of scenario based triage education by lecture and role playing on knowledge and practice of nursing students

INTRODUCTION

Quick and accurate triage of patients in the emergency department is a key factor for successful management of the emergency situations and ensuring the quality of care. Moreover, triage skills education is one of the important aspects of preparedness of nurses for different emergency situations. The objective of this study was to compare the effect of educating emergency severity index (ESI) triage using lecture and role-playing on the knowledge and practice of nursing students.

METHODS

This experimental study was conducted in the School of Nursing and Midwifery, Tabriz, Iran, in 2016. In this study, 56 nursing students were selected by convenience sampling method and were randomly divided into two groups. Triage scenarios were taught and presented in two ways by using lecture or role-playing method. One month later, the post-test was taken. Data were collected using a questionnaire assessing the knowledge and practice of ESI and were analysed using SPSS (version 21).

RESULTS

The mean knowledge and practice scores in both groups improved significantly (p < 0.05). The post-test score showed a significant difference between the two groups, and the mean score was higher in the role-playing group compared with that of the lecture group (p < 0.05).

DISCUSSION

The results showed the effectiveness of both educational methods on students' learning. However, the role-playing method was more effective than the lecture method and is recommended for triage education. In addition, according to the importance of triage, developing the theoretical and practical education courses for nursing students is recommended.

A clinical pathway for heart failure reduces admissions from the ED without increasing congestion in the ED

BACKGROUND

A multidisciplinary team at a major academic medical center established an Acutely Decompensated Heart Failure Clinical Pathway (ADHFCP) program to reduce inpatient readmission rates among patients with heart failure which, among several interventions, included an immediate consultation from a cardiologist familiar with an ADHFCP patient when the patient presented at the Emergency Department (ED). This study analyzed how that program impacted utilization of services in the ED and its subsequent effect on rates of admission from the ED and on disposition times.

METHODS

ADHFCP inpatient visits were retrospectively risk stratified and matched with non-program inpatient visits to create a control group. A Cox survival model analyzed the ADHFCP's impact on patients' likelihood to visit the ED. Multivariable ANOVA evaluated the impact of the program on the patients' likelihood of being admitted when presenting at the ED. The ADHFCP's impact on bed-to-disposition time in the ED was evaluated by Wilcoxon's rank-sum test, as were doses of diuretics administered in the ED.

RESULTS

The survival analysis showed no impact of the ADHFCP on patients' likelihood of visiting the ED, but ADHFCP patients presenting to the ED were 13.1 (95% CI: 3.6-22.6) percentage points less likely to be admitted. There was no difference in bed-to-disposition times, but ADHFCP patients received diuretics more frequently and at higher doses.

CONCLUSIONS

Improved communication between cardiologists and ED physicians through the establishment of an explicit pathway to coordinate the care of heart failure patients may decrease that population's likelihood of admission without increasing ED disposition times.

Modeling the Length of Stay of Respiratory Patients in Emergency Department Using Coxian Phase-Type Distributions With Covariates

Variability and unpredictability are typical features of emergency departments (EDs) where patients randomly arrive with diverse conditions. Patient length of stay (LOS) represents the consumption level of hospital resources, and it is positively skewed and heterogeneous. Both accurate modeling of patient ED LOS and analysis of potential blocking causes are especially useful for patient scheduling and resource management. To tackle the uncertainty of ED LOS, this paper introduces two methods: statistical modeling and distribution fitting. The models are applied to 894 respiratory diseases patients data in the year 2014 from ED of a Chinese public tertiary hospital. Covariates recorded include patient region, gender, age, arrival time, arrival mode, triage category, and treatment area. A Coxian phase-type (PH) distribution model with covariates is proposed as an alternative method for modeling ED LOS. The expectation-maximization (EM) algorithm is used to implement parameter estimation. The results show that ED LOS data can be modeled well by the proposed models. Distributions of ED LOS differ significantly with respect to patients' gender, arrival mode, and treatment area. Using the fitted Coxian PH model will assist ED managers in identifying patients who are most likely to have an extreme ED LOS and in predicting the forthcoming workload for resources.

MOBILE SCREENING TO IDENTIFY AND FOLLOW-UP WITH HIGH RISK, HIV NEGATIVE YOUTH

BACKGROUND

HIV prevalence remains disproportionately high among youth, especially among young men who have sex with men, young people with substance use disorders, and recently incarcerated youth. However, youth may not report behavioral risks because they fear stigma or legal consequences. While routine HIV screening programs have increased testing, current programs are not designed to identify, or provide prevention services to, high-risk patients who test HIV negative.

AIMS

To examine the feasibility and preliminary efficacy of: a tablet-based screening designed to facilitate HIV risk reporting and testing among a sample of young urban emergency department (ED) patients; and a text message-based follow up protocol for patients who test HIV-negative and report increased behavioral risk.

METHODS

100 ED patients aged 18 - 24, who declined HIV tests offered at triage, completed a tablet-based intervention that included a risk screening, an educational video, and offered participants HIV tests. If patients accepted testing and reported increased risk, the tablets offered follow-up text messages.

RESULTS

30 participants accepted HIV tests following the intervention and 21 participants, identified by custom software as high-risk, agreed to receive text messages. Two thirds (66.7%) of text recipients responded to questions at week 6, more than half (57.1%) responded at week 8, one (4.76%) re-tested after week 12.

CONCLUSION

Results indicate our intervention provides a feasible way to facilitate risk reporting, increase HIV testing, and maintain ongoing contact with hard-to-reach youth via tablet computers and text messages.

Characteristics of patients who leave the emergency department without being seen: the first report in China

OBJECTIVE

The incidence of patients who leave without being seen (LWBS) by a doctor in the ED in China has not been reported. The purpose of this study is to identify the prevalence and characteristics of the LWBS patient population as well as predictors of LWBS in the ED of a tertiary hospital of China.

METHODS

We conducted a retrospective cohort study of all ED patients from November 2011 to October 2012 in our hospital. Patient age, sex, nationality, time of day, day of week and month of patient presentation, mode of arrival, and triage category were examined as potential predictors of LWBS. Multivariate logistic regression was performed to identify independent predictors of LWBS patients.

RESULTS

The prevalence of LWBS patients was 10.7%. LWBS patients were nearly equally divided between men and women (52.8% men, 47.2% women). The average age of LWBS patients was significantly younger than non-LWBS patients (P < 0.001). The majority of LWBS patients (82.2%) arrived on foot, and very few LWBS patients (0.3%) were non-Chinese. The majority of LWBS patients (94.6%) were assigned to Emergency Severity Index level 3 or 4. Independent predictors of LWBS included paediatric age, lower triage acuity, arrival on foot, time of the day, day of the week and month of presentation.

CONCLUSIONS

Independent LWBS predictors include paediatric patients arriving on foot in the evening with lower acuity problems. Potential risk management strategies should be implemented to decrease or eliminate the LWBS population by improving communication and providing increased comfort measures.

Health care utilization before and after an outpatient ED visit in older people

BACKGROUND

Older adults in the United States receive a significant amount of care in the emergency department (ED), yet the associations between ED and other types of health care utilization have not been adequately studied in this population.

OBJECTIVES

The goals of this study were to examine the relationships between health care use before and after an ED visit among older adults.

METHODS

This retrospective cohort study examined health care use among 308 patients 65 years or older discharged from a university-affiliated ED. Proportional-hazards models were used to assess the relationship between pre-ED health care use (primary care physician [PCP], specialist, ED, and hospital) and risk of return ED visits.

RESULTS

Older ED patients in this study had visited other types of providers frequently in the previous year (median number of PCP and specialist visits, 4). Patients who used the ED on 2 or more occasions in the previous year were found to have visited their PCP more often than those without frequent ED use (median number of visits, 7.0 vs 4.0; P < .001). Despite more PCP use in this population, frequent ED use was associated with increased risk of a repeat ED visit (hazard ratio, 2.20; 95% confidence interval, 1.15-4.21), in models adjusted for demographics and health status.

CONCLUSION

Older adults who use the ED are also receiving significant amounts of care from other sources; simply providing additional access to care may not improve outcomes for these vulnerable individuals.

Revealing triage behaviour patterns in ER using a new technology for handwritten data acquisition

INTRODUCTION

Data acquisition is still one of the important challenges to be met in clinical settings. This is even more critic in settings with high cognitive workloads, such as emergency room (ER). Observations in these settings are difficult to realize without biases and there is little means to trace fine acquisition activities done in natural environments, using pen and papers. This study is based on the usage of a digital pen and paper (DPP) technology for the acquisition of triage information by nurses in ER. The DPP technology has been used to ease acquisition using a natural mechanism; it also minimizes the external influence of observation during acquisition activities. The aim of this study is to determine whether data recorded by the DPP technology allows explaining how ER triage nurses use the triage forms in real working conditions.

METHODOLOGY

The chief physicians of the ER service wanted to have answers about three main concerns pertaining to the triage process: (1) the average time spent during the triage process; (2) the sequence in which the fields of the forms were filled and; (3) the contribution of objective measurements, such as vital signs, to the triage emergency level and decisions. In order to answer these questions, detailed log data recorded by the DPP during form filling as been analyzed and allowed to built several representations of the triage process. In addition, we completed this analysis with ethnographical-like observations.

RESULTS

For seven consecutive days, 1183 triage forms have been recorded in the ER for all patients admitted. Among them, 954 forms have been digitalized and 906 forms have been considered as valid and complete. Based on this set of data, the median duration of the triage process is 143 s. There are no converging habits in filling the forms and the sequence of filling fields present a high variability. The emphasis of the objective measurements in the decisional process is rather low, as vital signs are recorded in less than 17% of the cases.

CONCLUSION

The DPP technology is an original approach to study data acquisition processes in unbiased conditions. The technical raw data recorded by the DPP allows building the time series of all activities on the paper, therefore letting to constructing several representations of the process. However, the technology is not able to provide information about the context of use, for example interruptions of the form filling processes due to calls or other activities. Therefore, it is necessary to complete these analyses with qualitative approaches such as observational studies and interviews. Noticeably, as a result of this study, the head physicians of ER have redesigned the triage form to enforce the use of objective measurements and ease the data acquisition process.

CT utilization: the emergency department perspective

CT scan utilization in the pediatric emergency department (ED) has dramatically increased in recent years. This likely reflects the improved diagnostic capability of CT, as well as its wider availability. However, the utility of CT is tempered by the high radiation exposure to patients as well as cost. In this review we will consider the magnitude of changes in CT use in the pediatric ED, and we will examine some of the driving forces behind these increases. In addition, we will consider strategies to limit growth in CT scan utilization or even result in reductions in CT use in the future. These strategies include better physician and patient education, application of existing clinical decision rules to reduce CT utilization and development of new rules, technical alterations in CT protocols to reduce per-exam exposures, use of alternative imaging modalities such as US and MRI that do not expose patients to ionizing radiation, and expanded use of clinical observation in place of immediate diagnostic imaging. Reform of liability laws might alleviate another driving force behind high CT utilization rates. Protocols must be designed to maximize patient safety by limiting radiation exposures while preserving rapid and accurate diagnosis of time-sensitive conditions.