Exogenous Predictors of National Performance Measures for Emergency Department Crowding

From the Annals of Emergency Medicine:

We explore the relationship between exogenous-level predictors and performance on 4 emergency department (ED) throughput measures approved by the National Quality Forum: median ED length of visit for admitted and discharged patients, median waiting time, and rate of left without being seen. We seek to find predictors for benchmarking and public reporting.

Methods: This was a study of 424 US hospitals that reported data to the National Hospital Ambulatory Care Survey in 2008 to 2009. Wald F tests and generalized linear models were used to test the relationship between exogenous variables (case mix, age mix, ED volume, teaching status, and Metropolitan Statistical Area status) and performance on the measures.

Results: Median waiting time was 35 minutes (95% confidence interval [CI] 26 to 43 minutes), median length of visit for patients treated but not admitted was 131 minutes (95% CI 121 to 142 minutes), median length of visit for patients admitted was 244 minutes (95% CI 218 to 270 minutes), and rate of left without being seen was 1.3% (95% CI 0.9% to 1.8%). Most exogenous variables, including ED volume, Metropolitan Statistical Area, teaching hospital status, age mix, and case mix, demonstrated significant association with waiting times and lengths of visit. Older age and a higher proportion of respiratory complaints were associated with differences in rates of left without being seen.

Conclusion: Several exogenous factors outside of a hospital’s control are associated with National Quality Forum–approved ED performance measures, which will have important implications for future benchmarking and public reporting of these data.

ER throughput measures unfair to big hospitals

From Fierce Healthcare:

Emergency department (ED) throughput measures endorsed by the National Quality Forum may paint large, urban hospitals in a bad light, according to a study in the Annals of Emergency Medicine published last week. Current emergency measures like wait times and length of stay might favor small, rural hospitals and, therefore, unfairly represent large, urban hospitals because of the complexity of their patient loads or simply because managing flow is harder for them.

Emergency preparedness in the 21st century: Training and preparation modules in Virtual Environments

From Resuscitation:

Objectives: To determine the feasibility of evidence-based design and use of low-cost virtual world environments for preparation and training in multi-agency, multi-site, major incident response.

Methods: A prospective cohort feasibility study was carried out. One pre-hospital, and two in-hospital major incident scenarios, were created in an accessible virtual world environment. 23 pre-hospital and hospital-based clinicians each took part in one of three linked major incident scenarios: a pre-hospital bomb blast site, focusing on the roles of the team leader and triage person; a blast casualty in a resuscitation room, focusing on the role of the trauma team leader; a hospital command and control scenario focusing on the role of the clinical major incident co-ordinator/silver commander. Participants supplied both quantitative and qualitative feedback.

Results: Using a systematic, evidence-based approach, three scenarios were successfully developed and tested using low-cost virtual worlds (Second Life and OpenSimulator). All scenarios were run to completion. 95% of participants expressed a desire to use virtual environments for future training and preparation. Pre-hospital responders felt that the immersive virtual environment enabled training in surroundings that would be inaccessible in real-life.

Conclusions: The feasibility and face/content validity of using low-cost virtual worlds for multi-agency major incident simulation has been established. Major incident planners and trainers should explore utilising this technology as an adjunct to existing methodologies. Future work will involve development of robust assessment metrics

Effect of Testing and Treatment on Emergency Department Length of Stay

From Academic Emergency Medicine:

Objectives:  Testing and treatment are essential aspects of the delivery of emergency care. Recognition of the effects of these activities on emergency department (ED) length of stay (LOS) has implications for administrators planning efficient operations, providers, and patients regarding expectations for length of visit; researchers in creating better models to predict LOS; and policy-makers concerned about ED crowding.

Methods:  A secondary analysis was performed using years 2006 through 2008 of the National Hospital Ambulatory Medical Care Survey (NHAMCS), a nationwide study of ED services. In univariate and bivariate analyses, the authors assessed ED LOS and frequency of testing (blood test, urinalysis, electrocardiogram [ECG], radiograph, ultrasound, computed tomography [CT], or magnetic resonance imaging [MRI]) and treatment (providing a medication or performance of a procedure) according to disposition (discharged or admitted status). Two sets of multivariable models were developed to assess the contribution of testing and treatment to LOS, also stratified by disposition. The first was a series of logistic regression models to provide an overview of how testing and treatment activity affects three dichotomized LOS cutoffs at 2, 4, and 6 hours. The second was a generalized linear model (GLM) with a log-link function and gamma distribution to fit skewed LOS data, which provided time costs associated with tests and treatment.

Results:  Among 360 million weighted ED visits included in this analysis, 227 million (63%) involved testing, 304 million (85%) involved treatment, and 201 million (56%) involved both. Overall, visits with any testing were associated with longer LOS (median = 196 minutes; interquartile range [IQR] = 125 to 305 minutes) than those with any treatment (median = 159 minutes; IQR = 91 to 262 minutes). This difference was more pronounced among discharged patients than admitted patients. Obtaining a test was associated with an adjusted odds ratio (OR) of 2.29 (95% confidence interval [CI] = 1.86 to 2.83) for experiencing a more than 4-hour LOS, while performing a treatment had no effect (adjusted OR = 0.84; 95% CI = 0.68 to 1.03). The most time-costly testing modalities included blood test (adjusted marginal effects on LOS = +72 minutes; 95% CI = 66 to 78 minutes), MRI (+64 minutes; 95% CI = 36 to 93 minutes), CT (+59 minutes; 95% CI = 54 to 65 minutes), and ultrasound (US; +56 minutes; 95% CI = 45 to 67 minutes). Treatment time costs were less substantial: performing a procedure (+24 minutes; 95% CI = 20 to 28 minutes) and providing a medication (+15 minutes; 95% CI = 8 to 21 minutes).

Conclusions:  Testing and less substantially treatment were associated with prolonged LOS in the ED, particularly for blood testing and advanced imaging. This knowledge may better direct efforts at streamlining delivery of care for the most time-costly diagnostic modalities or suggest areas for future research into improving processes of care. Developing systems to improve efficient utilization of these services in the ED may improve patient and provider satisfaction. Such practice improvements could then be examined to determine their effects on ED crowding.

HealthBridge goes live with ED, hospital admission alerts

From Government Health IT:

HealthBridge, the Ohio-based health information exchange, has gone live with an alert system that notifies provider practices in real time when their patients get treated in emergency departments or admitted to hospitals.

With notification, primary care physicians can make sure that their patients get follow-up care in the office shortly after discharge from the ED or hospital, and avoid re-admission, which is a major factor in skyrocketing healthcare costs.

In virtual ER, doctors come to you

From MyFox Houston:

Beginning Friday, a new web-based service allows people to consult with a real doctor using the web-cams on their home computers.

The “virtual ER” uses tele-pods located inside an actual free-standing emergency room in Bellaire.

“There is no other emergency room anywhere in the nation doing this,” said Dr. Mario Quintanilla, who runs VirtualERs.com. “Anywhere.”

For a flat $49 fee, patients can be evaluated by a physician over a Skype-like videophone connection. The course of treatment could take several directions, depending on the symptoms.