The effect of emergency department crowding on clinically oriented outcomes

Drive-through medicine: a novel proposal for rapid evaluation of patients during an influenza pandemic

STUDY OBJECTIVE

During a pandemic, emergency departments (EDs) may be overwhelmed by an increase in patient visits and will foster an environment in which cross-infection can occur. We developed and tested a novel drive-through model to rapidly evaluate patients while they remain in or adjacent to their vehicles. The patient's automobile would provide a social distancing strategy to mitigate the person-to-person spread of infectious diseases.

METHODS

We conducted a full-scale exercise to test the feasibility of a drive-through influenza clinic and measure throughput times of simulated patients and carbon monoxide levels of staff. We also assessed the disposition decisions of the physicians who participated in the exercise. Charts of 38 patients with influenza-like illness who were treated in the Stanford Hospital ED during the initial H1N1 outbreak in April 2009 were used to create 38 patient scenarios for the drive-through influenza clinic.

RESULTS

The total median length of stay was 26 minutes. During the exercise, physicians were able to identify those patients who were admitted and discharged during the real ED visit with 100% accuracy (95% confidence interval 91% to 100%). There were no significant increases of carboxyhemoglobin in participants tested.

CONCLUSION

The drive-through model is a feasible alternative to a traditional walk-in ED or clinic and is associated with rapid throughput times. It provides a social distancing strategy, using the patient's vehicle as an isolation compartment to mitigate person-to-person spread of infectious diseases.

Impact of an emergency nurse-initiated asthma management protocol on door-to-first-salbutamol-nebulization-time in a pediatric emergency department

OBJECTIVE

To determine the effect of an ED nurse-initiated asthma management protocol on door to first salbutamol nebulization time.

METHODS

This was a prospective before-after study. Asthmatics, aged 1 to 12 years presenting to the ED with an exacerbation during the pre and post nurse-initiated care phases (from 1/22/08 to 2/8/08 and from 2/12/08 to 3/4/08), were eligible. An asthma training program was administered to nurses prior to post phase. Respiratory therapists started the first nebulization after a physician order during the pre phase, whereas bedside nurses initiated it before physician evaluation during the post phase. Mean differences and confidence intervals (CI) were calculated.

RESULTS

Each of the study groups had 125 patients. Door to first nebulization time was reduced by a mean of 31.3 minutes (CI 23.0, 39.6) in the post phase. Door to steroids, second nebulization, and bedside nurse evaluation time intervals were reduced by 22.8 minutes (CI 8.8, 36.9), 21.7 minutes (CI 9.1, 34.4) and 15.6 minutes (CI 7.5, 23.7) respectively.

CONCLUSION

An ED nurse-initiated asthma management protocol expedited initiation of medications essential for relief of symptoms of acute asthma and bedside evaluation by nurses. Standing nurse-initiated care protocols may prove to be beneficial in improving acute asthma care in crowded EDs.

Factors associated with delayed use or nonuse of systemic corticosteroids in emergency department patients with acute asthma

BACKGROUND

Little is known about factors associated with systemic corticosteroid (SC) use in emergency department (ED) patients with acute asthma.

OBJECTIVE

To determine the patient and system factors associated with delayed use or nonuse of SCs in the ED.

METHODS

We analyzed the asthma component of the National Emergency Department Safety Study. Patients with acute asthma in 62 urban EDs in 23 US states between 2003 and 2006 were identified. The primary outcome measure was the pattern of SC use in the ED, which was categorized as timely use (< or = 60 minutes), delayed use (> 60 minutes), or nonuse. Multinomial logistic regression was performed to identify factors associated with delayed use or nonuse of SCs.

RESULTS

A total of 2,559 of 3,798 patients with acute asthma (67.4%) received SCs. Of these, the median door-to-SC time was 62 minutes (interquartile range, 35-100 minutes), with 1,319 patients (51.5%) having delayed SC treatment. Nonuse of SCs was largely explained by markers of asthma exacerbations (never intubated for asthma, lower respiratory rate, and higher oxygen saturation). In contrast, in addition to these factors, delayed SC treatment was associated with age of 40 years or older, female sex, longer duration of symptoms, ED presentation between 8 AM and 11:59 PM, and ED with a longer average patient wait time.

CONCLUSIONS

Physicians in the ED seem to appropriately administer SCs to higher-acuity asthmatic patients; however, the additional nonmedical factors represent opportunities to improve the timeliness of SC treatment in the ED.

Myths versus facts in emergency department overcrowding and hospital access block

Overcrowding occurs when emergency department (ED) function is impeded, primarily by overwhelming of ED staff resources and physical capacity by excessive numbers of patients needing or receiving care. Access block occurs when there is excessive delay in access to appropriate inpatient beds (> 8 hours total time in the ED). Access block for admitted patients is the principal cause of overcrowding, and is mainly the result of a systemic lack of capacity throughout health systems, and not of inappropriate presentations by patients who should have attended a general practitioner. Overcrowding is most strongly associated with excessive numbers of admitted patients being kept in the ED. Excessive numbers of admitted patients in the ED are associated with diminished quality of care and poor patient outcomes. These include (but are not limited to) adverse events, errors, delayed time-critical care, increased morbidity and excess deaths (estimated as at least 1500 per annum in Australia). There is no evidence that telephone advice lines or collocated after-hours GP services assist in reducing ED workloads. Changes to ED structure and function do not address the underlying causes or major adverse effects of overcrowding. They are also rapidly overwhelmed by increasing access block. The causes of overcrowding, and hence the solutions, lie outside the ED. Solutions will mainly be found in managing hospital bedstock and systemic capacity (including the use of step-down and community resources) so that appropriate inpatient beds remain available for acutely sick patients.