Current outpatient management of asthma shows poor compliance with International Consensus Guidelines

Community asthma management of emergency department patients: A pilot study of adherence with national consensus guidelines

We aimed to determine whether the outpatient management of ED patients with asthma adheres to Australia's Asthma Consensus Guidelines. Adult patients, under treatment for asthma, were administered a validated questionnaire. Data on their outpatient management were collected and analysed descriptively. Of 51 patients, 14 smoked and 35 did not undergo regular GP review. Twenty-one patients had a good understanding of a written asthma action plan although only 15 owned one. Fourteen patients used no preventer medication. Patients were only able to identify a mean of 3.4 asthma triggers. Most patients' management does not adhere to Australian guidelines.

An assessment of adherence to asthma medication guidelines: findingsfrom a tertiary care center in the state of Penang, Malaysia

BACKGROUND/AIM

Multiple asthma guidelines have been developed to reduce asthma mortality, morbidity, and cost associated with asthma worldwide. In Malaysia, within this context, it is relatively unknown to what extent doctors adhere to the asthma guidelines. This study aimed to assess guideline adherence and calculate the cost of adhered and nonadhered prescriptions by medical doctors in a public tertiary health care facility.

MATERIALS AND METHODS

A cross-sectional study was carried out at Hospital Pulau Pinang, Malaysia. One hundred and eighty patients, a total of 30 patients per doctor, were enrolled to assess guideline adherence. The patients were followed for a second visit to assess their lung function. The costs of adhered and nonadhered prescriptions were calculated.

RESULTS

One hundred and forty-three patients (79%) received guideline (Global Initiative for Asthma 2011)-adhering pharmacotherapy. In the majority of patients (n = 133, 73.9%) asthma control was classified as partially controlled. There was no significant association observed between patient asthma control and patient demographics; however, there was a significant difference (P < 0.001) between lung function values from the first and second visits. The cost of adhered prescription was higher (70.1 Malaysian ringgit) than that of nonadhered prescription (13.74 Malaysian ringgit).

CONCLUSION

Fair levels of guideline adherence were observed. Emphasis should be placed on identifying appropriate cost-effective medication regimens based on patient asthma control and constant feedback from patients.

Metered dose inhaler technique among inner-city asthmatics and its association with asthma medication adherence

INTRODUCTION

Inhaled medications, critical for asthma treatment, are self-administered through metered dose inhalers (MDI). Asthma self-management hinges on adherence to these medications and to proper MDI technique.

OBJECTIVE

To assess predictors of proper MDI technique, and MDI technique as a tool to identify patients with low adherence to inhaled medications.

METHODS

Prospective cohort of asthmatics from clinics in New York, NY and New Brunswick, NJ. MDI technique was assessed using a standardized checklist. Adherence to inhaled asthma controller medication was evaluated with the Medication Adherence Report Scale. Predictors of MDI technique were evaluated using regression analyses. The distribution of number of MDI technique steps missed was compared in adherent vs. non-adherent asthmatics.

RESULTS

Overall, 326 patients were included (55% Hispanic, 27% Black). In adjusted analyses, age < 55 years was significantly associated with MDI technique (P = 0.03). Overall, 12%, 34%, 40% of asthmatics missed 5-6, 3-4, or 1-2 MDI steps; 16% received a perfect MDI technique score. Adherence rates were 20%, 39%, 48%, and 62% among those who missed 5-6, 3-4, 1-2, or none of the steps in the MDI technique checklist (P < 0.001).

CONCLUSION

Poor MDI technique is common among inner-city patients with asthma and is associated with poor adherence to controller medications. Older patients with asthma are at higher risk of improper MDI technique. Assessment of MDI technique may be a simple clinical aid to identify patients with low adherence to controller medications.

Asthma care practicing among general practitioners in Lebanon: a cross-sectional study

Objectives

The aim of this study was to characterize the current practice of asthma among general practitioners (GPs) in Lebanon.

Methods

Out of 2450 Lebanese registered GPs, a representative sample of 330 were stratified by region to fill out the questionnaire constructed on the basis of surveys developed mainly by the Chicago Asthma Surveillance Initiative Report Team in newly moderate persistent asthma patients aged 5 years and above. The questionnaire included information about ascertaining diagnostic techniques, pharmacotherapeutic approaches, formal patient education program; asthma related continuing medical education and asthma practice guidelines.

Results

Totally, 302 completed the questionnaire achieving a response rate of 91.5%. Chest radiography was the most commonly used diagnostic test (98%), while stain for eosinophilia was the less commonly used (7.9%). For clinical monitoring, cough and wheezing (98.7%) were mostly assessed. Short acting inhaled β₂-agonists were often the most prescribed (94.3%) followed by inhaled corticosteroids (87.4%) then by long acting β-agonist (LABA) and theophylline (27.5% and 20.9%, respectively). Moreover, 10% of GPs provided formal asthma education program, 72.2% attended professional education and 65% adopted guidelines.

Conclusion

Based on current international guidelines, the overall Lebanese GPs practice of asthma management is not at an acceptable standard. Therefore, it is recommended to improve monitoring parameters, implement the asthma guidelines nationally and improve patient education.

[Impact of administering the Asthma Control Test questionnaire on rating asthma control in primary health care]

OBJECTIVE

To compare the score indicative of asthma control obtained using the Asthma Control Test (ACT(®)) questionnaire administered by primary health care physicians, habitual users of the questionnaire, and those were not.

DESIGN

A multicentre, prospective, epidemiological study.

SETTING

Primary health care centres in Spain.

PARTICIPANTS

Two study populations were defined: «ACT(®) users» and «non-ACT(®) users», according to the use of the ACT(®) questionnaire by their respective primary health care physicians.

MAIN MEASUREMENTS

The patients completed the ACT(®) questionnaire during a baseline visit, and in another follow-up visit at 8 weeks. The primary outcome was the percentage of patients with an ACT(®) score ≥ 20. The change in the ACT(®) score was analysed if there was a change in treatment.

RESULTS

There was a higher percentage of patients with well-controlled asthma in the ACT(®) users group after 8 weeks (68.5% vs. 55.6%; P=.01). A significant increase in the ACT(®) score was observed in the follow-up visit compared to the baseline visit, when there was a change in treatment in both groups (2.5 and 3.8 points, ACT(®) users and non-ACT(®)-users, respectively, P=.001 and P<.0001).

CONCLUSIONS

The administering of the ACT(®) questionnaire improved the score indicative of asthma control in both populations of the study, with a higher score being obtained in those patients attended by physicians with previous experience in the use of ACT(®). The administering of the ACT(®) questionnaire could contribute to improving the long-term outcome of the patient, and favouring the appropriateness of the treatment.

ALMA, a new tool for the management of asthma patients in clinical practice: development, validation and initial clinical findings

BACKGROUND

Several instruments have been developed for measuring asthma control, but there is still a need to provide a structure for primary care asthma reviews.

AIMS

The Active Life with Asthma (ALMA) tool was developed with the aim of structuring patient visits and assessing asthma treatment in primary care. The ability of ALMA to map out the care of asthma patients was evaluated and validated.

METHODS

ALMA was developed with patient and clinical expert input. Questions were generated in focus groups and the resulting tool was subsequently validated by factor analysis in 1779 patients (1116 females) of mean age 51 years (range 18-89) in primary care.

RESULTS

The ALMA tool includes 19 questions, 14 of which belong to a subset assessing asthma control. In this subset, factor analysis revealed three domains (factors): physical, psychological, and environmental triggers. Correlation with the Asthma Control Questionnaire was 0.72 and the Cronbach's alpha was 0.88. The test-retest reliability was 0.93. Of the 1779 patients tested with ALMA in primary care, 62% reported chest tightness, 30% nightly awakenings and 45% asthma breakthrough despite medication.

CONCLUSIONS

The ALMA tool is useful as a follow-up instrument in clinical practice to structure patient visits and assess asthma treatment in primary care. The breadth of the questions and the pragmatic use in clinical practice also make it useful as an outcome measure.

Parental perceptions and beliefs about childhood asthma: a cross-sectional study

Aim

To assess parental perceptions and beliefs about asthma in children.

Methods

We invited 6000 children aged 3 to 15 years from different schools in Lebanon to participate in the study from September 2007 to May 2008. In the first phase, in order to determine the prevalence of asthma in children, parents of all participating children filled out a small questionnaire. In the second phase, only parents of children with asthma filled out a detailed questionnaire about their perceptions of asthma.

Results

Phase I included parents of 4051 children, 574 (14%) of whom had asthma and were recruited to phase II. Out of these, 389 parents entered the final data analysis. Around 54% of parents believed that asthma was hereditary and 7% believed it was contagious. When asked about triggering factors, 51% stated virus infection, 75% dust, and 17% food. Sixty percent of children with asthma lived with someone who smoked. Sixty-seven percent of parents believed that herbs had a role in asthma treatment and only 49% received asthma education. There was a significant difference in education level (P = 0.01) between the parents who denied the label of asthma (79%) and those who accepted it (21%). Sixty-seven percent of parents preferred oral over inhaler treatment, 48% believed inhalers were addictive, 56% worried about inhalers’ side effects, and 76% worried about using inhaled corticosteroids. Significantly more parents from rural (53%) than from urban areas (38%) believed that inhalers were addictive (P = 0.004).

Conclusion

Parents of children with asthma had considerable misperceptions about the use of inhalers and the safety of inhaled corticosteroids. To improve asthma care in children, it is necessary to provide adequate education to parents.

Influence of patients' adherence to medication, patient background and physicians' compliance to the guidelines on asthma control

This study conducted a thorough examination on the associations among several factors of asthma therapy, i.e., physicians' compliance with the guidelines, patients' adherence to medication, asthma symptom severity, asthma episodes, and patient background. Fifty outpatients treated continuously for asthma from October 2002 to October 2004 at Showa University Hospital were selected and their medical charts were surveyed. Physicians were recognized as noncompliant when their treatments included divergence from the Asthma Prevention and Management Guidelines. Patient adherence was evaluated as the ratio of the "measured (dispensed)" doses divided by the "expected (prescribed)" doses. The inhaled corticosteroids adherence and the ratio of the asthma-related emergency department visits of the patients with a family asthma medical history were significantly higher (p=0.034) and lower (p=0.043), respectively, than those without this medical history. This may indicate the necessity of education for patients with no family history of asthma. A significant correlation between the mean patients' adherence and the asthma symptom severity at the end of surveillance was found (p=0.010), suggesting the importance of patient adherence in asthma control. The asthma symptom severity in the noncompliant group at the beginning of surveillance was significantly worse (p=0.016), suggesting that physician compliance was low when the asthma symptom severity was poor. Based on the above findings, we proposed a flow-chart, which includes the confirmation processes of patients' adherence to medication and physicians' compliance to guidelines, in order to better control asthma, while also taking their family medical history into account.

[Asthma treatment adherence]

Asthma is a very prevalent chronic disease in the general population, characterized by reversible obstruction of respiratory airways. Multiple studies demonstrate an improper control of the disease, and one of the main reasons for that is reduced adherence to treatment. Non -adherence can be classified as nonintentional or intentional, and the causes can be related to the motivations, beliefs and knowledge of the patient or due to the therapeutic regimen. The reasons for non -adherence are non -comprehension of the treatment goals; non -comprehension of disease severity; fears related to drugs; psychological conditions such as depression; complexity of treatment regimen; difficulties with administration route, mainly inhaler. After recognizing these issues as cause of non- -adherence, different approaches should be considered: set up a good physician -patient communication; promote asthma education; schedule regular appointments; simplify therapeutic regimen. It is important to promote adherence to achieve a good asthma control, and consequently a better quality of life and reduction of asthma associated costs.

Regional variation and adherence to guidelines for drug treatment of asthma

AIMS

To describe the utilization of antiasthmatic drugs in Sweden and to explore regional variations in drug utilization and adherence to guidelines for rational drug prescribing of antiasthmatics and their rationale.

METHODS

Data on antiasthmatic drugs dispensed between July 2005 and December 2008 to all Swedish citizens aged between 18 and 44 years were obtained from the Swedish National Prescribed Drug Register. The period prevalence was determined by analyzing the number of users/1000 inhabitants, and the incidence by analyzing the number of new users after an 18-month drug-free wash-out period. Three drug-related indicators were used to assess the adherence to guidelines. All measures were analyzed by gender and region.

RESULTS

A total of 161,000 patients were dispensed antiasthmatics in 2007, corresponding to a prevalence of 4 and 6% among men and women, respectively; the incidence rates were 2 and 3%, respectively. The total drug utilization and adherence to guidelines varied between regions. The total drug expenditures of antiastmatics were 258 million SEK (28 million euro), with fixed dose combinations accounting for 46% of the expenditure. No relation was found between models for allocating prescribing budgets or clear Drug and Therapeutics Committee recommendations and adherence to guidelines.

CONCLUSION

There are large regional variations in the utilization of antiasthmatics between Swedish regions, with substantial room for improvement in the adherence to guidelines. New methods of influencing physician behavior may be needed in the future to enhance adherence.

Binge drinking, poor mental health, and adherence to treatment among California adults with asthma

Binge drinking and poor mental health may affect adherence to treatment for individuals with asthma. The purposes were to (a) examine the relationship of self-reported binge drinking and mental health to adherence to daily asthma control medications and (b) identify other demographic and health-related factors associated with asthma control medication adherence. Secondary analyses of 2003 adult California Health Interview Survey data were undertaken, and these analyses identified 3.2 million California adults who had been told by a physician they had asthma. Of these, approximately 1.7 million were symptomatic. Binge drinking significantly predicted medication nonadherence among California adults with symptomatic asthma (OR = .63, 95% CI = .45-.89), whereas poor mental health did not. Other predictors of nonadherence (odds ratios < 1, p < .05) included being overweight, younger age, having some college education, being a current smoker, and having no usual source of medical care. Predictors of adherence (odds ratios > 1, p < .05) were older age, more frequent asthma symptoms, more ER visits, more missed work days, being African American, and being a non-citizen. Intervention efforts could be directed toward improving medication adherence among adult asthma patients who engage in risky health behaviors such as binge drinking. Also at risk for medication nonadherence and therefore good targets for asthma control medication management interventions are adults who are overweight, younger (18-44 age range), have some college education, and no usual source of medical care.

Decline of outpatient asthma management in Argentina

BACKGROUND AND OBJECTIVES

To assess management of adult patients admitted with acute asthma and compare the results obtained with a similar study 5 years earlier.

METHODS

A cross-sectional survey of 211 consecutive patients admitted to hospital during a 12-month period was conducted. Patients were surveyed using a validated management questionnaire and the results compared with those of the previous survey.

RESULTS

There were 211 patients in the present survey and patient demographics were similar in both populations studied. Comparison of the previous to the current survey showed significant differences in predicted FEV(1)% at admission (30.2 +/- 10.7 vs 23.9 +/- 8.9, respectively, P < 0.001), and the average number of hospital admissions in the year prior to the survey (0.7 +/- 1.2 vs 1.3 +/- 0.7, P < 0.0001). In the present survey, more patients changed their medication after acute exacerbation and more received an action plan. Compared with the previous survey, there were no significant differences between the mean number of emergency department visits, need for mechanical ventilation, number of patients prescribed inhaled corticosteroids and other related variables.

CONCLUSION

Compared with the previous study the severity of asthma at the time of admission was worse. Some of the recommended international asthma management programmes appear to have been followed.

Descriptors and perception of dyspnea in African-American asthmatics

OBJECTIVE

This study explores self-reported perception of asthma symptoms in African-Americans.

METHODS

Qualitative methodology was used to analyze the responses from African-Americans within focus groups from Nashville, Tennessee.

RESULTS

Common symptoms were chest tightness, "breathing problems," and wheeze. Less commonly reported symptoms included cough, chest pain, dizziness, sweating, and "short of breath." A single participant reported nocturnal wheezing.

CONCLUSIONS

This study provides insight into the descriptors and perception of asthma symptoms in African-Americans. Understanding the descriptors of symptoms and disease severity in African-American patients may lead to more accurate diagnosis, treatment, and reduced mortality within this high-risk population.

Acute severe asthma

Acute severe asthma remains a major economic and health burden. The natural history of acute decompensations is one of resolution and only about 0.4% of patients succumb overall. Mortality in medical intensive care units is higher but is less than 3% of hospital admissions. "Near-fatal" episodes may be more frequent, but precise figures are lacking. However, about 30% of medical intensive care unit admissions require intubation and mechanical ventilation with mortality of 8%. Morbidity and mortality increase with socioeconomic deprivation and ethnicity. Seventy to 80% of patients in emergency departments clear within 2 hours with standardized care. The relapse rate varies between 7 and 15%, depending on how aggressively the patient is treated. The airway obstruction in the 20-30% of people resistant to adrenergic agonists in the emergency department slowly reverses over 36-48 hours but requires intense treatment to do so. Current therapeutic options for this group consist of ipratropium and corticosteroids in combination with beta2 selective drugs. Even so, such regimens are not optimal and better approaches are needed. The long-term prognosis after a near-fatal episode is poor and mortality may approach 10%.

The value of care algorithms

The use of protocols or care algorithms in medical facilities has increased in the managed care environment. The definition and application of care algorithms, with a particular focus on the treatment of acute bronchospasm, are explored in this review. The benefits and goals of using protocols, especially in the treatment of asthma, to standardize patient care based on clinical guidelines and evidence-based medicine are explained. Ideally, evidence-based protocols should translate research findings into best medical practices that would serve to better educate patients and their medical providers who are administering these protocols. Protocols should include evaluation components that can monitor, through some mechanism of quality assurance, the success and failure of the instrument so that modifications can be made as necessary. The development and design of an asthma care algorithm can be accomplished by using a four-phase approach: phase 1, identifying demographics, outcomes, and measurement tools; phase 2, reviewing, negotiating, and standardizing best practice; phase 3, testing and implementing the instrument and collecting data; and phase 4, analyzing the data and identifying areas of improvement and future research. The experiences of one medical institution that implemented an asthma care algorithm in the treatment of pediatric asthma are described. Their care algorithms served as tools for decision makers to provide optimal asthma treatment in children. In addition, the studies that used the asthma care algorithm to determine the efficacy and safety of ipratropium bromide and levalbuterol in children with asthma are described.

The impact of spirometry on pediatric asthma diagnosis and treatment

Research has shown that spirometry is underutilized in the clinical setting. This study profiles the use of spirometry in an asthma management program at an inner-city community health clinic. Eligible subjects included 56 children who presented with an acute asthma exacerbation. Physicians recorded patient diagnosis before and after viewing spirometry. Bivariate and multivariate analysis was used to determine associations between symptoms and forced expiratory volume in 1 second (FEV1). Physicians changed 30.4% of patients' treatment plans after viewing spirometry results. Wheezing was significantly associated with FEV1 in bivariate analysis; however, multivariate modeling failed to identify significant relationships. The use of spirometry influenced patient diagnosis and treatment.

Estudo comparativo entre o manejo da asma em uma unidade de referência da rede pública de Porto Alegre (RS) e as proposições do III Consenso Brasileiro no Manejo da Asma

OBJETIVO: Avaliar se as diretrizes do III Consenso Brasileiro no Manejo da Asma estão sendo aplicadas em uma população de asmáticos em um hospital de referência da rede pública de Porto Alegre (RS). MÉTODOS: Todos os pacientes adultos que iniciaram tratamento entre 1999 e 2002 foram avaliados. O tratamento recebido foi classificado em concordante ou discordante do Consenso. As características clínicas da asma e a freqüência do tratamento por especialista foram comparadas entre os grupos. RESULTADOS: Foram avaliados os prontuários de 357 pacientes, com média de idade de 41 anos, sendo 106 homens (29,7%) e 251 mulheres (70,3%), 33 tabagistas (9,2%). O tratamento foi considerado discordante em 246 pacientes (70%), sendo que, neste grupo, houve ausência de tratamento com corticóide inalatório em pacientes com asma persistente em 174 deles (71%). Volume expiratório forçado no primeiro segundo normal, idade entre doze e dezoito anos e asma intermitente foram observados com maior freqüência entre os pacientes com tratamento concordante (p < 0,01). Tratamento discordante não teve correlação com tratamento por pneumologista, gravidade da asma persistente ou número de visitas à emergência. CONCLUSÃO: A maioria dos pacientes com asma tratados em uma unidade de referência da rede pública em Porto Alegre não faz o tratamento preconizado pelos consensos e o subtratamento com corticóide inalatório é a principal causa de discordância.

The right tools at the right time

Asthma is underdiagnosed and undertreated or inappropriately treated, even though approximately 300 million people worldwide currently have the disease. While asthma in most patients can be controlled using currently available medications, in practice this rarely happens. Despite the wide availability of treatment guidelines, there are clear discrepancies between recommendations and the reality of treatment. There is excessive use of relief medications, particularly among patients with moderate-to-severe persistent asthma, coupled with a marked underuse of inhaled corticosteroids (ICS). This underuse by patients is likely to be related to anxiety about side effects and a misunderstanding about asthma. Many patients overestimate their degree of control and have a perceived lack of need for medication. Early therapeutic intervention, with optimal antiinflammatory therapy and a stepwise approach, has a positive impact on long-term outcomes, achieving suppression of airway inflammation, prompt symptom control, and restoration of pulmonary function. Even at low doses, ICS rapidly improve clinical symptoms and measures of lung function, while their long-term use markedly reduces the frequency and severity of exacerbations and asthma mortality. Although ICS monotherapy achieves successful control of persistent asthma in a significant proportion of patients, add-on therapy with a long-acting beta2-agonist provides control for most patients with moderate-to-severe persistent asthma. Fixed combination inhalers (ICS plus a long-acting beta2-agonist) have become popular, but these have drawbacks and there is the potential for overuse. In conclusion, ICS are the cornerstone of therapy for persistent asthma of all degrees of severity in adults and children, and early therapeutic intervention is recommended for optimal long-term outcome.

Adesão ao tratamento de manutenção em asma (estudo ADERE)

OBJETIVO: Avaliar a adesão ao tratamento preventivo de asma persistente moderada e grave. MÉTODOS: Médicos de vários Estados do país foram contactados para selecionar asmáticos persistentes moderados ou graves, maiores de doze anos. Os pacientes receberam salmeterol/fluticasona 50/250 µg diskus durante 90 dias (sendo orientados a retornarem as embalagens ao final do estudo para conferência da dosagem total utilizada). Receberam telefonemas da equipe do estudo no início e ao final de 90 dias para que fosse avaliada a adesão. Foi considerado como aderente ao tratamento o asmático que utilizou no mínimo 85% das doses prescritas. As variáveis estudadas foram sexo, idade, cor, estado civil, escolaridade, tabagismo atual, outras atopias, co-morbidades, gravidade da asma, uso de outras medicações e número de hospitalizações por asma. RESULTADOS: Foram incluídos 131 pacientes oriundos de quinze estados, com taxa geral de adesão de 51,9%. Houve diferença significativa na adesão quanto à gravidade da asma (maior adesão nos casos graves; p = 0,02). Não houve diferença estatisticamente significativa nas demais variáveis. CONCLUSÃO: A taxa geral de adesão ao tratamento de manutenção da asma foi baixa.

Chronic outpatient management of asthmatics attending the emergency department: a survey from a country with low income

PURPOSE

Little is known about compliance with international guidelines of asthma management in developing countries where some medications are prohibitively expensive.

METHODS

A survey was conducted in asthmatic patients attending the emergency department for acute asthma. Asthma severity was evaluated and conformity of chronic treatment with international guidelines was assessed. Additional features of asthmatic education were also evaluated.

RESULTS

A total of 127 consecutive patients (mean age 34 +/- 14 years) answered the questionnaire. Mild asthma was present in 19.7% patients, 56.7% had moderate asthma and 23.6% had severe asthma. Of the 124 known asthmatic patients, 33% had no treatment for chronic asthma. In the remaining, treatment adhered to international guidelines in 44% patients. The major cause of treatment inadequacy was the lack of inhaled corticosteroids (64%) or suboptimal dosage of corticosteroids (13%). Conformity to guidelines according to favorable or unfavorable economic conditions was 59% and 33%, respectively (P = 0.036). Treating physicians provided an 'action plan' for managing acute symptoms to 19% patients. Forty percent of asthmatic patients performed correctly the five components of metered dose inhaler use.

CONCLUSION

Our study reveals an important proportion of non-treated asthmatic patients. In most asthmatic patients, treatment did not conform with guidelines because of an underutilization of corticosteroids, mainly because of economic obstacles.

The Asheville Project: long-term clinical, humanistic, and economic outcomes of a community-based medication therapy management program for asthma

OBJECTIVE

To assess clinical, humanistic, and economic outcomes of a community-based medication therapy management (MTM) program for 207 adult patients with asthma over 5 years.

DESIGN

Quasi-experimental, longitudinal pre-post study.

SETTING

12 pharmacy locations in Asheville, N.C. PATIENTS/OTHER PARTICIPANTS: Patients with asthma covered by two self-insured health plans; professional educator at Mission Hospitals; 18 certificate-trained community and hospital pharmacists.

INTERVENTIONS

Education by a certified asthma educator; regular long-term follow-up by pharmacists (reimbursed for MTM by health plans) using scheduled consultations, monitoring, and recommendations to physicians.

MAIN OUTCOME MEASURES

Changes in forced expiratory volume in 1 second (FEV1), asthma severity, symptom frequency, the degree to which asthma affected people's lives, presence of an asthma action plan, asthma-related emergency department/hospital events, and changes in asthma-related costs over time.

RESULTS

All objective and subjective measures of asthma control improved and were sustained for as long as 5 years. FEV1 and severity classification improved significantly. The proportion of patients with asthma action plans increased from 63% to 99%. Patients with emergency department visits decreased from 9.9% to 1.3%, and hospitalizations from 4.0% to 1.9%. Spending on asthma medications increased; however, asthma-related medical claims decreased and total asthma-related costs were significantly lower than the projections based on the study population's historical trends. Direct cost savings averaged 725 dollars/patient/year, and indirect cost savings were estimated to be 1230 dollars/patient/year. Indirect costs due to missed/nonproductive workdays decreased from 10.8 days/year to 2.6 days/year. Patients were six times less likely to have an emergency department/hospitalization event after program interventions.

CONCLUSION

Patients with asthma who received education and long-term medication therapy management services achieved and maintained significant improvements and had significantly decreased overall asthma-related costs despite increased medication costs that resulted from increased use.

Encouraging a systems approach for adherence to national asthma guidelines

PURPOSE

There is a lack of information in the literature reflecting systems effects on adherence to national asthma guidelines. The purpose of this pilot study is to provide a descriptive account of the preparedness of academic primary care sites to follow national asthma guidelines related to spirometry, peak flow meters, standard history forms, severity assessment, follow-up assessment sheets, patient self-assessment sheets, and asthma action plan templates.

METHODS

This was a cross-sectional descriptive study. A short survey was mailed to medical directors on behalf of primary care academic clinical sites to assess the availability of guideline tools in their practices. Medical directors were also asked to rate their perception of how essential the guidelines were in the management of asthma.

RESULTS

Medical directors agreed that the guideline tools were essential in managing asthma. However, with the exceptions of peak flow meters and standard history forms, most sites were not equipped with these tools for providers to use.

CONCLUSIONS

The findings highlight the importance of the practice environment on the implementation of national asthma guidelines and encourage larger studies to include an assessment of the systems in place to enable guideline adherence. By taking systems into account, interventions may be potentially much more effective in improving the quality of care.

Adequacy of outpatient management of asthma patients admitted to a state hospital in Argentina

OBJECTIVE

The aim of this study was to assess chronic outpatient management of adult patients admitted with asthma.

METHODOLOGY

A cross-sectional survey was conducted of 98 consecutive asthma admissions to a specialized pulmonary State Hospital in Buenos Aires, Argentina, over a 12-month period. Patients were surveyed, within 48 h of admission, with a previously validated questionnaire which deals with chronic outpatient management and measures taken by patients or physicians to treat symptoms during asthma exacerbations.

RESULTS

FEV1% predicted was 30.2 +/- 10.7. Mean admission rate and emergency department (ED) visits in the previous year were 0.7 +/- 1.2 and 4.6 +/- 5.1, respectively. A total of 96, 65 and 9% of the patients had been treated previously in the ED, admitted to hospital or mechanically ventilated, respectively. Only 62% had been prescribed inhaled corticosteroids (IC) by their physician; 38% had been prescribed nebulized beta agonists (Nbeta2) and 68% a metered dose inhaler (MDIbeta2). Inhaled beta2-agonist usage during acute exacerbations over the 24 h prior to admission was 14.4 +/- 7.4 puffs for MDIbeta2 and 8.6 +/- 5.4 occasions for Nbeta2. Only 11% of the patients were able to perform all the steps of the MDI inhalation technique correctly. An action plan had been provided by their physicians to 43% of patients, while 58% changed their medication on their own. Only three patients had a peak flow meter (PFM) prescribed. ED was used by 26% for their routine care. No health insurance coverage was available to 75.5% of the patients.

CONCLUSIONS

Underuse of IC, poor MDI inhalation technique, and low prescription of an action plan was common and a PFM was seldom prescribed. During exacerbations, many patients changed their medication spontaneously and MDIbeta2 underuse was observed.

Asthma patients' knowledge, perception, and adherence to the asthma guidelines

Asthma patients' knowledge and perceptions about asthma management regimens have been shown to correlate with the quality of their asthma management and outcomes. This study addresses adult ambulatory asthma patients' knowledge and perception of the asthma management guidelines issued by the National Asthma Education and Prevention Program. We interviewed 76 patients at three adult medicine outpatient clinics. Of 37 patients who knew about peak flow monitoring, 21 found it to be useful, only 10 were using it regularly, and 7 had a notation about it in their chart. Eight patients knew about patient self-assessment forms, 6 found them useful, 3 had used one recently, and only 1 patient had one in the chart. Six patients knew about asthma action plans, 4 of them thought that these plans were useful, but only 1 patient was actively using it. This study demonstrates major gaps in the asthma patients knowledge, perceptions, and their adherence to recommendations and also with the documentation in the medical record.

The influence of pulmonary function testing on the management of asthma in children

OBJECTIVE

To assess how often in a single encounter that pulmonary function tests (PFTs) influenced management decisions in children with asthma, beyond what was obtained from history and physical examination alone.

STUDY DESIGN

Children with asthma (n = 367, age 4 to 18 years) performed spirometry before clinical evaluation. Physicians and nurse practitioners in the outpatient pulmonary office evaluated the children and made initial treatment recommendations before reviewing the spirometry results. Any changes based on the test results were documented.

RESULTS

Spirometry was abnormal in 45% of the visits, related to underlying asthma severity but not to clinical findings. PFT results changed management decisions in 15% of visits. This frequency was not affected by the patient's age, disease severity, symptom control, or exam findings. When spirometry did not change treatment decisions, the provider was more likely to maintain therapy (58%) than to increase (17%) or decrease (24%) therapy. In contrast, when spirometry did change treatment decisions, the provider was more likely to increase therapy (75%) than to maintain (20%) or decrease (5%) therapy.

CONCLUSION

Without PFTs, providers often overestimated the degree of asthma control. This incorrect assessment could have resulted in suboptimal therapy.

Unscheduled healthcare resource use among asthma patients receiving low-dose inhaled corticosteroids maintenance treatment

This survey describes asthma control and unscheduled healthcare resource use (HCRU) among patients receiving low-dose inhaled corticosteroids (ICS) alone in five European countries and the USA. Physicians and patients completed forms collecting data on asthma symptoms, sudden increase in chest/respiratory symptoms, asthma-related HCRU, quality of life (QoL) and drug therapy. Fifty-seven per cent of patients on low-dose ICS alone had physician-rated moderate or severe asthma. Only 13% of patients receiving low-dose ICS alone achieved asthma control; 36% reported nocturnal wakening and 22% reported unscheduled healthcare services in the past year. Gender, symptom frequency, episodes of sudden increase in chest/respiratory symptoms and impaired QoL were all related to unscheduled healthcare resource utilisation. Many patients receiving low-dose ICS alone do not have adequate asthma control. Some patient characteristics were found to be significantly different, but not exclusive, between unscheduled healthcare resource users and non-users.

Changes in asthma prevalence and impact on health and function in Seattle middle-school children: 1995 vs 2003

BACKGROUND

The prevalence of asthma has increased during the past several decades but may have stabilized during the last 5 years. It is not known whether the functional and health impact of asthma has decreased during the past decade.

OBJECTIVE

To evaluate changes during a recent 8-year period in the prevalence and health and functional impact of current asthma symptoms in young teenagers.

METHODS

In 1995 and 2003, 2,330 and 2,397 middle-school students from Seattle, WA, respectively (median age, 13 years), completed written surveys and answered questions pertaining to 4 wheezing or asthma video scenarios. Children were categorized as having physician-diagnosed current asthma (wheeze in the past year and a physician diagnosis of asthma), undiagnosed current asthma symptoms (wheeze in the past year without a physician diagnosis), or no asthma. Outcome measures were the prevalence of asthma and undiagnosed asthma symptoms and the differences between years in respiratory-associated functional impairment (exercise limitation, missed school, disrupted sleep) and health impact (physician visits, wheeze-limited speech).

RESULTS

The prevalence of physician-diagnosed current asthma increased from 1995 to 2003 (3.0% to 6.2%), whereas that for undiagnosed current asthma symptoms decreased (12.0% to 6.2%). The degree of functional and health impairment was similar between the 2 study periods for each subgroup and was highest in the children with physician-diagnosed current asthma.

CONCLUSIONS

The prevalence of current asthma symptoms in middle-school children from Seattle decreased slightly between 1995 and 2003, whereas the diagnosis of asthma increased. However, the health and functional impact of asthma did not diminish. Asthma is being diagnosed more often, but many children with asthma are still not achieving good asthma control.

Impact of 'mild' asthma on health outcomes: findings of a systematic search of the literature

The present bibliographic review shows that patients considered to have mild asthma often suffer impairment in quality of life (QoL) and use considerable scheduled and unscheduled health care resources. I found that asthma investigators used no consistent classification scheme for asthma severity, and the level of agreement amongst specialists when categorizing patients with asthma was low. Asthma severity has been classified using a wide range of parameters including medication use, asthma symptoms, lung function, hospitalizations and incidence of exacerbations. Most studies showed a general association between asthma severity and health-related quality of life (HRQoL) such that patients with severe disease suffered greater impairment. However, few patients with mild asthma enjoyed unimpaired HRQoL. Indeed depression and impaired HRQoL were reported as frequently in patients with mild asthma as in those with more severe disease. Although in general severe patients used the most health care resources, even patients with mild asthma used considerable health care resources including emergency room care and hospitalizations. In summary, the term 'mild' when applied to asthma is potentially misleading given the impaired HRQoL and avoidable health care utilization prevalent amongst such patients. The application of disease severity classification in clinical asthma management has not been validated. It may now be appropriate to examine these classifications more critically in order to determine if they have clinical or research usefulness. By contrast, the strategy of treating to achieve disease control has been validated and offers the advantage of simplicity in its application.

[Cost-effectiveness of an intervention based on the Global INitiative for Asthma (GINA) recommendations using a computerized clinical decision support system: a physicians randomized trial]

BACKGROUND AND OBJECTIVE

To assess the cost-effectiveness of an intervention based on the Global INitiative for Asthma (GINA) recommendations as compared to usual care.

SUBJECTS AND METHOD

Pragmatic, cluster-randomised trial. Ten pneumologists and 10 general practitioners were randomised to an intervention or control group, recruiting 98 and 100 asthma patients, respectively. The intervention consisted of an education program and a clinical decision support system (CDSS) providing recommendations based on the GINA. The control group was characterized by usual care. Effectiveness was assessed by the health related quality of life as measured by the St. George's Respiratory Questionnaire (SGRQ). Costs were computed from the resource consumption recorded during a 12 months follow-up period, and the cost-effectiveness of the intervention was investigated in an incremental analysis.

RESULTS

The intervention effect on the SGRQ total score was estimated as a 6.8 point reduction (95% confidence interval, 2.5-11.1; p = 0.0021), and a significant improvement in the SGRQ subscores and in the symptoms-free periods were also observed. From the social perspective, the mean total costs showed savings of -1,022 Euros (95% confidence interval, -2,165 to 122; p = 0.0795) in intervention group as compared to usual care. The incremental analysis confirmed that the intervention was cost-effective.

CONCLUSIONS

The implementation of an asthma management program based in GINA recommendations improved the patient's health related quality of life and was cost-effective as compared to usual care.

Understanding and resolving adherence problems

The expert panel report version 2 (EPR-2) is a comprehensive set of recommendations for the evaluation and treatment of asthma. However, physicians demonstrate scant adoption of many of the key evaluation and treatment components of the EPR-2, with primary care physicians being less likely to adopt EPR-2 recommendations than specialist physicians. Patients also demonstrate very limited adoption of physician recommendations, such as the use of medications as prescribed. Predictors of physician and patient nonadherence are reviewed, as modifiable predictors may be targets for interventions to enhance adherence. Finally, areas for future efforts are identified.

Quality-of-life and asthma control with low-dose inhaled corticosteroids

Guidelines are available to assist healthcare professionals in the appropriate management of patients with asthma, a highly prevalent and debilitating disease. Despite these guidelines many patients are still not being optimally treated, often resulting in poor asthma control and consequent impact on health-related quality of life (HRQoL). The present study concerns the findings of a multinational survey designed to evaluate the reported level of asthma control and HRQoL of patients with asthma. This analysis focuses on those patients receiving treatment with low-dose inhaled corticosteroids (ICS) alone. The findings confirm that many patients on a low-dose ICS alone are not receiving appropriate treatment to control their asthma, and this has a marked negative impact on their HRQoL. Revising management and treatment can improve asthma control and HRQoL for these patients, liberating them from the burden of this disease.

Physicians' assessment of asthma control in low vs. high asthma-related morbidity regions

OBJECTIVES

To analyze physician-assessed asthma control and care compared with current guidelines criteria, in a cohort of patients from a high (HMR) vs. low asthma-related morbidity region (LMR), as determined by a large-scale populational survey (asthma cartography).

DESIGN

Analysis of questionnaires provided by 47 primary care physicians and asthmatic patients (HMR: 74; LMR: 73).

RESULTS

Asthma control was often suboptimal in both regions. In both regions, asthma control, the pattern of prescriptions for asthma, patient compliance, and referral for asthma education were similar; 32% of patients had been referred for asthma education, whereas 65% wanted to know more about their asthma.

CONCLUSIONS

Results of regional/local cohort studies differ from those of a "population cartography," the former probably more likely reflecting individual medical practices of physicians interested in taking part in such studies.

Management of childhood asthma: physicians' perspective in Turkey

Many attempts have been made to decrease asthma-related mortality and morbidity, including preparation and distribution of guidelines. However, several studies from different regions of the world have reported low asthma control among children as well as adults. A questionnaire-based study was performed involving a number of Turkish physicians taking care of pediatric asthmatics, and aimed to document asthma-related knowledge. Of 219 physicians, 126 (57%) completed the questionnaire. The majority were pediatricians (92%), with an average of 253 +/- 14.1 outpatients per week, and an asthmatic ratio of 15.8%. According to the self-reported knowledge, management of acute asthma received the highest (3.42 +/- 0.05) and chronic asthma the lowest scores (3.18 +/- 0.06). The study group further credited inhaled and oral steroids similarly for the treatment of exacerbations and reported infrequent usage of spirometry and oxygen saturation than physical finding to estimate attack severity. Although with regard to most subjects, physicians' opinions appeared to be in agreement with the guidelines, there were certain differences implying need for future educational training. Chronic management, reported as the least understood part of the guidelines, suggests requirement of new models for estimating chronic disease severity.

Standardized protocol improves asthma management in emergency department

This study assessed, 30 months after its initiation, the impact of a standardized asthma management program designed to facilitate the implementation of asthma management guidelines in a tertiary teaching hospital adult emergency department. The program was initiated in a stepwise manner: first, a retrospective baseline audit; followed by generation of local guidelines; validation of these guidelines by all staff involved; distribution of the guidelines; a second practice audit; use of these results to further improve the program; feedback to the staff; twice-yearly information meetings; and a new audit 2 years later. The main results were a significant improvement in history taking (p < 0.001), increased use of serial airflow measurements (p < 0.001), increased steroid use (p < 0.001), and better documentation of follow-up arrangements (p < 0.01). Several tests of questionable value were no longer prescribed routinely. The improvements persisted after 2.5 years. In contrast, there was no improvement in the proportion of medical files that contained records of discharge prescriptions for outpatients. Implementation of locally agreed guidelines resulted in a marked improvement in several aspects of asthma management in an emergency department; the program must be pursued to maintain and further improve quality of care.

Anticholinergic agents for chronic asthma in adults

BACKGROUND

Anticholinergic agents such as ipratropium bromide are sometimes used in the treatment of chronic asthma. They effect bronchodilation and have also been used in combination with beta2-agonists in the management of chronic asthma.

OBJECTIVES

To examine the effectiveness of anticholinergic agents versus placebo and in comparison with beta2-agonists or as adjunctive therapy to beta2-agonists.

SEARCH STRATEGY

The Cochrane Airways Group asthma and wheeze database was searched with a pre-defined search strategy. Searches were current as of August 2003. Reference lists of articles were also examined.

SELECTION CRITERIA

Randomised trials or quasi-randomised trials were considered for inclusion. Studies assessing an anticholinergic agent versus placebo or in combination/comparison with beta2-agonists were included. In practice, all beta2-agonists were short acting. Short-term (less than 24 hours duration) and longer-term studies were separated; the latter are reported in this review and the former in the review, "Anticholinergic agents for chronic asthma in adults short term".

DATA COLLECTION AND ANALYSIS

Two reviewers independently assessed abstracts for retrieval of full text articles. Papers were then assessed for suitability for inclusion in the review. Data from included studies were extracted by two reviewers and entered into the software package (RevMan 4.2). We contacted authors for missing data and some responded. Adverse effect data were analysed if reported in the included studies.

MAIN RESULTS

The studies analysed were in two groups: those comparing anticholinergics with placebo and those comparing the combination of anticholinergics with short acting beta2-agonists versus short acting beta2-agonists alone. The former group had 13 studies involving 205 participants included in this review, and the latter 9 studies involving 440 patients. Generally methodological quality was poorly reported, and there were some reservations with respect to the quality of the studies. Despite the limited number of studies that could be combined, anticholinergic agents in comparison with placebo resulted in more favourable symptom scores particularly in respect of daytime dyspnoea (WMD -0.09 (95%CI -0.14, -0.04, 3 studies, 59 patients). Daily peak flow measurements also showed a statistically significant improvement for the anticholinergic (e.g. morning PEF: WMD =14.38 litres/min (95%CI 7.69, 21.08; 3 studies, 59 patients). However the clinical significance is small and in terms of peak flow measurements equates to approximately a 7% increase over placebo. The more clinically relevant comparison of a combination of anticholinergic plus short acting beta2-agonist versus short acting beta2-agonist alone gave no evidence in respect of symptom scores or peak flow rates of any significant differences between the two regimes. Again there are reservations with respect to the quality of the information from which these conclusions are drawn.

REVIEWERS' CONCLUSIONS

Overall this review provides no justification for routinely introducing anticholinergics as part of add-on treatment for patients whose asthma is not well controlled on standard therapies. This does not exclude the possibility that there may be a sub-group of patients who derive some benefit and a trial of treatment in individual patients may still be justified. The role of long term anticholinergics such as tiotropium bromide has yet to be established in patients with asthma and any future trials might draw on the messages derived from this review.

Modification of provider behavior to achieve improved asthma outcomes

Despite an abundance of scientific evidence supporting the use of guidelines, adherence to asthma practice guidelines by physicians generally is low, regardless of provider and patient characteristics. As a result, scientific information, obtained with great effort and at huge expense, is not being translated into clinical practice. To remedy this, we developed a disease management program that emphasizes alteration of provider behavior using operant conditioning. We did this by placing asthma educators in private offices for up to 8 weeks. The educators used a combination of problem-based learning, role modeling, and operant conditioning with positive reinforcement to affect behavior change. As a result of these behavior changes, by the end of 8 weeks the cost to treat asthma patients decreased, despite an increase in the cost of medications. We concluded that behavior-oriented programs targeted at provider offices can lead to improved asthma care while reducing costs.

Attitudes of physicians toward objective measures of airway function in asthma

BACKGROUND

The National Asthma Education and Prevention Program (NAEPP) recommends pulmonary function testing as part of asthma evaluation. The objectives of this study were to determine the use of spirometry in patients with asthma by primary care physicians and asthma specialists, and to identify barriers to use of spirometry.

METHODS

We developed, validated, and administered a mailed survey to primary care physicians and asthma specialists in the general community. We asked about the use of spirometry, access to spirometry, and barriers to spirometry use.

RESULTS

Of 975 eligible subjects, 672 (69%) completed the survey. Asthma specialists were more likely to have an office spirometer (78% [216/277] vs. 43% [169/395], P <0.001) than were primary care physicians, and more likely to report measuring pulmonary function in at least 75% of their patients with asthma (83% [223/270] vs. 34% [131/388], P <0.001). In logistic regression analysis, factors most strongly associated with reported spirometry use (in at least 75% of patients) among asthma specialists were owning a spirometer, disagreeing with the statement that the test requires excessive use of office resources, and agreeing that spirometry is a necessary part of the asthma evaluation. Among primary care physicians, owning a spirometer, agreeing that the data are necessary for accurate diagnosis, and believing that they were trained to perform and interpret the test were most strongly associated with reported spirometry use.

CONCLUSION

Pulmonary function testing is underutilized by physicians, with rates of utilization lowest among primary care physicians. Providing primary care physicians with better access to spirometry, through provision of a machine and appropriate training in its use and interpretation, may improve compliance with the NAEPP recommendations.

Asthma control in the Asia-Pacific region: the Asthma Insights and Reality in Asia-Pacific Study

BACKGROUND

Few data on asthma management are available for the Asia-Pacific region.

OBJECTIVE

This study examined asthma symptoms, health care use, and management in the Asia-Pacific region.

METHODS

We performed a cross-sectional survey, followed by administration of a questionnaire in a face-to-face setting in the respondents' homes in their language of choice. Urban centers in 8 areas were surveyed: China, Hong Kong, Korea, Malaysia, The Philippines, Singapore, Taiwan, and Vietnam.

RESULTS

A population sample of 3207 respondents with physician-diagnosed asthma was identified by screening 108,360 households. Daytime asthma symptoms were reported by 51.4% of respondents, and 44.3% reported sleep disturbance caused by asthma in the preceding 4 weeks. At least 2 in every 5 respondents (43.6%) had been hospitalized, attended a hospital emergency department, or made unscheduled emergency visits to other health care facilities for treatment of asthma during the previous 12 months. Overall, 15.3% of respondents reported that they had required admission to the hospital for asthma treatment. Asthma severity correlated with the frequencies of hospitalizations and emergency visits for asthma in the past year. Even in those patients with severe persistent asthma, 34.3% regarded their disease as being well or completely controlled. Current use of an inhaled corticosteroid was reported by only 13.6% of respondents, and 56.3% used quick-relief bronchodilators. Absence from school and work in the past year was reported by 36.5% of children and 26.5% of adults.

CONCLUSION

As reported for other regions, current levels of asthma control in the Asia-Pacific region fall markedly short of goals specified in international guidelines for asthma management.

Practice guidelines and measurement: state-of-the-science

BACKGROUND

Restructuring of the health care system has exposed widespread evidence of practice variability and has highlighted the benefits associated with nurses embracing interdisciplinary, best practice solutions to health care delivery. Clinical practice guidelines have emerged as a valuable interdisciplinary evidenced-based tool.

PURPOSE

This article explores the state of the science of guideline measurement and evaluates the strengths and weaknesses of measurement approaches.

METHOD

A computerized search of Cumulative Index of Nursing and Allied Health Literature, Health and Psychosocial Instruments, Medline, and PubMed for the search term "practice guidelines" was combined with the following key words: attitudes, adherence, effect, impact, instrument, and measurement.

DISCUSSION

Measurement issues identified in this analysis are related to the manner in which guidelines are written and the lack of a standard methodology for measurement.

CONCLUSIONS

The challenge remains to establish sound measures of adherence and impact while controlling for confounding variables. Questions remain as to the format of practice guidelines to best grant autonomy while offering recommendations that are clear and measurable.

Understanding and use of inhaler medication by asthmatics in specialty care in Trinidad: a study following development of Caribbean guidelines for asthma management and prevention

STUDY OBJECTIVES

Following the development of the Caribbean Guidelines for Asthma Care, we examined the utilization of inhaled medications in asthmatic patients in Trinidad, West Indies.

SETTING

Chest Clinic, Ministry of Health, Trinidad.

PARTICIPANTS

Physician-diagnosed asthmatic patients who attended the Chest Clinic between July 1998 and August 2000.

MEASUREMENTS AND RESULTS

A consecutive sample of patients who were > 7 years of age (n = 402) was interviewed about compliance with, understanding of, and use of inhaler medication. The inhaler technique of these patients was directly observed. Inhaled steroid therapy was prescribed in 83% of patients but were prescribed the least in elderly patients (63%) and children (62%). Salbutamol was prescribed in 98% of patients, and ipratropium and sodium cromoglycate were selectively prescribed in elderly men and children, respectively. Only 33% of patients used the inhaler correctly, and children and the elderly were the least efficient in its use. The use of a spacer device was advised in 19% of patients, including only 6% of the elderly patients. Explanations for different inhaler therapies were given to 62% of patients, and 53% of patients could describe these reasons. The reported 40% noncompliance rate among patients in the sample was primarily a result of long waiting periods at the pharmacy (58%) and the personal cost incurred on purchasing the medication (52%).

CONCLUSIONS

Educating patients, with a focus on children and the elderly, in inhaler techniques and reinforcing understanding of asthma medications can improve asthma management in Trinidad. Asthma caregivers in the Caribbean should ensure the appropriate dissemination of the guidelines and should outline strategies for their implementation.

Asthma severity and adequacy of management in accident and emergency departments in France: a prospective study

BACKGROUND

Recent guidelines have enabled doctors to establish accident and emergency department management strategies for acute asthma on the basis of severity of exacerbations at presentation. However, there is no available information on acute asthma patients classified according to severity of disease. Our aim was to describe the severity of such exacerbations at presentation, and the adequacy of treatment and management.

METHODS

We did a 12-month multicentre cross-sectional observational cohort study in adult patients with acute asthma who attended one of 37 accident and emergency departments in France. The doctors who examined the patients obtained information using a formatted chart. We classified exacerbations according to severity (life-threatening, severe, or mild to moderate), on the basis of clinical findings and peak expiratory flow value, as defined by currently used guidelines.

FINDINGS

Of 3772 patients with acute asthma, 975 (26%) had life-threatening attacks, 1834 (49%) had severe exacerbations without life-threatening features, and 963 (26%) had mild to moderate exacerbations. Initial treatment included nebulised b2 agonists, anticholinergics, and systemic corticosteroids in 3492 (93%), 1841 (49%), and 2252 (60%), respectively. According to severity classification, anticholinergics were used in 494 (51%), 913 (50%), and 434 (45%) of patients in life-threatening, severe, and mild to moderate exacerbations groups, respectively; corticosteroids were given in 666 (68%), 1117 (61%), and 468 (49%), respectively. The overall admission rate was 54.2%, and mean stay was 6.1 (SD 6.0) days. Patients were admitted in 747 (77%), 1018 (55%), and 278 (29%) of cases in life-threatening, severe, and mild to moderate groups, respectively. Three patients died in hospital.

INTERPRETATION

Acute asthma exacerbations are often life-threatening in patients who attend accident and emergency departments, and management of patients is not ideal, mainly because of underuse of corticosteroids and inappropriate admission rates according to severity.

Understanding airway wall remodeling in asthma: a basis for improvements in therapy?

Current strategies for the management of asthma focus on suppressing airway inflammation. Other characteristic features of human asthma, such as airway hyperreactivity and the structural changes collectively referred to as airway remodeling, are largely ignored in existing guidelines for monitoring the effectiveness of treatment. Evidence is accumulating that pharmacologic therapy targeting airway wall remodeling may be valuable in treating asthma. However, development of appropriate therapeutic agents will require a better understanding of the pathogenesis of remodeling, which appears to be regulated by a variety of cytokines and growth factors produced by inflammatory, epithelial, and stromal cells. Furthermore, testing the effectiveness of novel agents that specifically target the process of remodeling will require appropriate experimental models, but most currently available animal models of asthma have major limitations. A recently described murine model of chronic human asthma offers considerable potential for dissection of the mechanisms of airway wall remodeling, as well as for investigation of the therapeutic potential of drugs that can modulate chronic inflammation and remodeling.

Improving the quality of care of patients with asthma: the example of patients with severely symptomatic disease

The increasing economic burden of asthma care is incurred partly by patients with more severe symptoms. However, little is known about the characteristics of these severe asthma patients. This study examined sociodemographic, disease-specific characteristics and health care utilization that are related to asthma disease severity, for the purpose of identifying areas for treatment improvement. A total of 2927 asthma patients (12 years or older), who were continuously enrolled in one of three participating health plans for a 6-month study period and who responded to an asthma survey, were included in the study. Univariate and multivariate analyses were performed to examine the sociodemographic, disease-specific characteristics and health care utilization by asthma severity. About 25% of the patients reported experiencing severe asthma symptoms. They were more likely to be African-Americans, Hispanics, women, patients with less than a college education, residents in the south-west, current smokers, and those receiving care from non-specialists. Severe asthmatics reported having less of an understanding of the clinical manifestation of asthma and the means to manage asthma exacerbation. Outpatient contacts did not differ significantly between severe and other patients, although their utilization of emergency room and inpatient care was significantly greater. This study suggests that a significant proportion of asthma patients is experiencing severe symptoms and barriers other than access to care prevent appropriate control of asthma. Poor control appears to be related to smoking, deficits in knowledge about self-care, not receiving medical care from a specialist, and inadequate use of medications.