A call for expanding the role of the emergency physician in the care of patients with asthma

[Consensus-based approach for severe paediatric asthma in routine clinical practice]

INTRODUCTION

Accurate identification of paediatric patients with severe asthma is essential for an adequate management of the disease. However, criteria for defining severe asthma and recommendations for control vary among different guidelines.

MATERIAL AND METHODS

An online survey was conducted to explore expert opinions about the definition and management of severe paediatric asthma. To reach a consensus agreement, a modified Delphi technique was used, and practice guidelines were prepared after the analysis of the results.

RESULTS

Eleven paediatric chest disease physicians and allergy specialists with wide expertise in severe asthma responded to the survey. Consensus was reached in 50 out of 65 questions (76.92%). It was considered that a patient has severe asthma if during the previous year they have required 2 or more cycles of oral steroids, required daily treatment with medium doses of inhaled corticosteroids (with other controller medication) or high doses (with or without other controller medication), did not respond to optimised conventional treatment, or if the disease threatened the life of the patient or seriously impairs their quality of life. The definition of severe asthma may also include patients who justifiably use health resources on a regular basis, or have psychosocial or environmental factors impeding control. For monitoring, the use of questionnaires designed specifically for paediatric population, such as CAN or ACT, is recommended. As regards treatment, the use of omalizumab should be considered prior to the use of oral corticosteroids.

CONCLUSIONS

This paper provides consensus recommendations that may be useful in the management of severe paediatric asthma.

Patterns of health care utilization for asthma treatment in adults with substance use disorders

OBJECTIVES

: National goals for improving asthma outcomes include decreasing emergency room utilization and increasing adherence to outpatient treatment guidelines. Few studies have examined the impact of substance use disorders on asthma treatment. The objective of this study was to describe correlations between substance use disorders and patterns of healthcare utilization for asthma care.

METHODS

: We performed a retrospective analysis of 1999 Medicaid claims for adults with asthma from 5 states. Adjusted odds of receiving asthma treatment in outpatient, inpatient, and emergency settings were calculated for patients with substance use disorder (SUD).

RESULTS

: Consistent patterns emerge demonstrating significantly lower odds of utilization of outpatient services for asthma in patients with SUD. A trend toward increased utilization of acute care resources was observed, with odds of emergency care for asthma significantly increased in New Jersey (odds ratio [OR], 1.14; 95% confidence interval [CI], 1-1.31) and Georgia (OR, 1.24; 95% CI, 1.04-1.48), and odds of inpatient care for asthma significantly increased in Georgia (OR, 1.42; 95% CI, 1.03-1.95).

CONCLUSIONS

: Substance use disorders are associated with decreased odds of receiving outpatient care and equivalent or increased odds of receiving emergency and inpatient care for asthma. Consequently, outpatient-based strategies to improve asthma care may have a very limited impact for this population. Identifying asthma patients with SUD in acute care settings and enhancing the care they receive in these settings may be necessary to improve adherence to treatment guidelines and decrease utilization in this population.

The efficacy and value of emergency medicine: a supportive literature review

Study objectives

The goal of this study was to identify publications in the medical literature that support the efficacy or value of Emergency Medicine (EM) as a medical specialty and of clinical care delivered by trained emergency physicians. In this study we use the term "value" to refer both to the "efficacy of clinical care" in terms of achieving desired patient outcomes, as well as "efficiency" in terms of effective and/or cost-effective utilization of healthcare resources in delivering emergency care. A comprehensive listing of publications describing the efficacy or value of EM has not been previously published. It is anticipated that the accumulated reference list generated by this study will serve to help promote awareness of the value of EM as a medical specialty, and acceptance and development of the specialty of EM in countries where EM is new or not yet fully established.

Methods

The January 1995 to October 2010 issues of selected journals, including the EM journals with the highest article impact factors, were reviewed to identify articles of studies or commentaries that evaluated efficacy, effectiveness, and/or value related to EM as a specialty or to clinical care delivered by EM practitioners. Articles were included if they found a positive or beneficial effect of EM or of EM physician-provided medical care. Additional articles that had been published prior to 1995 or in other non-EM journals already known to the authors were also included.

Results

A total of 282 articles were identified, and each was categorized into one of the following topics: efficacy of EM for critical care and procedures (31 articles), efficacy of EM for efficiency or cost of care (30 articles), efficacy of EM for public health or preventive medicine (34 articles), efficacy of EM for radiology (11 articles), efficacy of EM for trauma or airway management (27 articles), efficacy of EM for using ultrasound (56 articles), efficacy of EM faculty (34 articles), efficacy of EM residencies (24 articles), and overviews and editorials of EM efficacy and value (35 articles).

Conclusion

There is extensive medical literature that supports the efficacy and value for both EM as a medical specialty and for emergency patient care delivered by trained EM physicians.

Can an evidence-based guideline reminder card improve asthma management in the emergency department?

Objective

Asthma is the most common chronic disease in children. Previous studies described significant variations in acute asthma management in children. This study was conducted to examine whether asthma management in the pediatric emergency department (ED) was improved through the use of an evidence-based acute asthma care guideline reminder card.

Methods

The Pediatric Acute Asthma Management Guideline (PAMG) was introduced to the ED of a pediatric tertiary care hospital in Ontario, Canada. Medical charts of 278 retrospective ED visits (January–December 2002) and 154 prospective visits (July 2003–June 2004) were reviewed to assess changes in acute asthma management such as medication treatment, asthma education, and discharge planning. Logistic and linear regressions were used to determine the effect of PAMG on asthma management in the ED. The propensity score method was used to adjust for confounding.

Results

During the implementation of PAMG, patients who visited the ED were more likely to receive oral corticosteroids (Adjusted Odds Ratio [AOR] = 2.26, 95% CI: 1.63–3.14, p < 0.0001) and oxygen saturation reassessment before ED discharge (AOR = 2.02, 95% CI: 1.45–2.82, p < 0.0001). They also received 0.23 (95% CI: 0.03–0.44, p = 0.0283) more doses of bronchodilator in the first hour of ED stay. Improvements in asthma education and discharge planning were noted, but the changes were not statistically significant.

Conclusions

After the implementation of an evidence-based guideline reminder card, medication treatment for acute asthma in the ED was significantly improved; however, asthma education and discharge planning remained unchanged. Future efforts on promoting guideline-based practice in the ED should focus on these components.

Risk factors for repeat adverse asthma events in children after visiting an emergency department

Objective

The aim of this study was to identify risk factors for long-term adverse outcomes in children with asthma after visiting the emergency department (ED).

Methods

A prospective observational study was conducted at the ED of a pediatric tertiary hospital in Ontario, Canada. Patient outcomes (ie, acute asthma episodes and ED visits) were measured at baseline and at 1- and 6-months post-ED discharge. Time trends in outcomes were assessed using the generalized estimating equations method. Multiple conditional logistic regressions were used to model outcomes at 6 months and examine the impact of drug insurance coverage while adjusting for confounders.

Results

Of the 269 children recruited, 81.8% completed both follow-ups. ED use significantly reduced from 39.4% at baseline to 26.8% at 6 months (P < .001), whereas the level of acute asthma episodes remained unchanged. Children with drug insurance coverage were less likely to have acute asthma episodes (adjusted odds ratio [AOR] = 0.36; 95% CI, 0.15–0.85; P < .02) or repeat ED visits (AOR = 0.45; 95% CI, 0.20–0.99; P < .05) at 6 months. Other risk factors for adverse outcomes included previous adverse asthma events and certain asthma triggers (eg, cold/sinus infection). Washing bed linens in hot water weekly was protective against subsequent acute asthma episodes.

Conclusions

Our study demonstrated significant improvements in long-term outcomes in children seeking acute care for asthma in the ED. Future efforts remain in targeting the sustainability of improved outcomes beyond 6 months. Risk factors identified can help target vulnerable populations for proper interventions, which may include efforts to maximize insurance coverage for asthma medications and strategies to improve asthma self-management through patient and provider education.

Predictors of frequent emergency department utilization in Southeastern Pennsylvania

STUDY OBJECTIVE

We sought to determine socioeconomic and demographic factors that predict frequent emergency department (ED) use among asthmatics in Southeastern Pennsylvania.

DESIGN

Retrospective cohort study using the 2004 Philadelphia Health Management Corporation's Southeastern Pennsylvania Household Health Survey.

SETTING AND PARTICIPANTS

Health behaviors were surveyed using telephone interviews (random-digit dialing) in Bucks, Montgomery, Delaware, Philadelphia, and Chester counties. Response rate was 30%.

RESULTS

Of 13,342 respondents, 1,799 (13%) stated that they had asthma. The mean reported visits in 12 months were as follows: clinic--1.2 (SD 2.7); doctor's office--4.7 (SD 5.6); ED--0.8; (SD 1.8); overnight hospitalizations--0.4 (SD 0.9). Most (91%) reported that a primary care doctor was their principal source of care, whereas 2% reported the ED as their principal source of care. Frequent ED use (>or=3 visits/12 months) was reported in 180 (10%). Frequent ED use was associated with race, education, diabetes, mental illness, smoking at home, and language barriers (p < 0.001) as well as indicators of severity of illness (clinic visits, office visits, prescription for asthma medication, p < 0.001). Using multivariable logistic regression, predictors of frequent ED use were: prescription for asthma meds (OR 2.3, 95%CI 1.4-3.7), having Medicaid or Medical Assistance (OR 1.7, 95%CI 1.1-2.6), having a high school education or less (OR 1.5, 95%CI 1.0-2.3), number of clinic visits (OR 1.1, 95% CI 1.1-1.1), office visits (OR 1.1, 95%CI 1.1-1.1), number of children living in the house (OR 1.2, 95% CI 1.0-1.3), and living in Philadelphia (OR 2.0, 95% CI 1.3-3.1).

CONCLUSIONS

Frequent ED use is associated with demographic factors, geographic factors, and markers of severity of illness. While care guidelines recommend prompt referral to a primary care physician to prevent ED visits, given the level of primary care use in this population, frequent primary care attendance alone may not prevent asthma-related ED visits.

Emergency department allies: a controlled trial of two emergency department-based follow-up interventions to improve asthma outcomes in children

OBJECTIVE

We sought to study the impact of emergency department (ED)-based intensive primary care linkage and initiation of asthma case management on long-term, patient-oriented outcomes for children with an asthma exacerbation.

METHODS

Our study was a randomized, 3-arm, parallel-group, single-blind clinical trial. Children aged 2 through 17 years treated in a pediatric ED for acute asthma were randomly assigned to standard care (group 1), including patient education, a written care plan, and instructions to follow up with the primary care provider within 7 days, or 1 of 2 interventions. Group 2 received standard care plus assistance with scheduling follow-up, while group 3 received the above interventions, plus enrollment in a case management program.

OUTCOMES

The primary outcome was the proportion of children having an ED visit for asthma within 6 months. Other outcomes included change in quality-of-life score and controller-medication use.

RESULTS

Three hundred fifty-two children were enrolled; 78% completed follow-up, 69% were black, and 70% had persistent asthma. Of the children, 37.8% had a subsequent ED visit for asthma, with no difference among the treatment groups (group 1: 38.4%; group 2, 39.2%; group 3, 35.8%). Children in all groups had a substantial, but similar, increase in their quality-of-life score. Controller-medication use increased from 69.4% to 81.4%, with no difference among the groups.

CONCLUSION

ED-based attempts to improve primary care linkage or initiate case management are no more effective than our standard ED care in improving subsequent asthma outcomes over a 6-month period.

Emergency physicians' prescribing of asthma controller medications

OBJECTIVES

To determine the frequency with which emergency department (ED) physicians prescribe long-term controller medications (LTCMs) for children with asthma, to assess ED physicians' awareness of and level of agreement with national guidelines for LTCM use, and to identify criteria ED physicians use to prescribe LTCMs and barriers to the use of LTCMs.

METHODS

A survey of all physician members of the American Academy of Pediatrics Section on Emergency Medicine who provide care for children in an ED was performed.

RESULTS

Surveys were returned by 391 (50%) of 782 physicians. The majority (80%) indicated that fewer than one half of children with persistent asthma were using LTCMs on ED arrival. Although 99% believe that children with persistent asthma should be treated with LTCMs, <20% provide LTCMs for the majority of such children at ED discharge. For 49%, the main reason for not prescribing these medications was the belief that this was the role of the primary care provider or asthma specialist. Practice setting, prior training, and annual patient volume were not associated significantly with prescribing LTCM. Patient's age and likelihood of compliance and physician's belief in efficacy and concerns about adverse effects were not important criteria in the decision to begin LTCM.

CONCLUSIONS

ED physicians often encounter children with persistent asthma who are not receiving LTCMs, they believe in the efficacy and safety of LTCMs, and they think that children with persistent disease should be treated with LTCMs, but they prescribe LTCMs infrequently.