The influence of variation in type and pattern of symptoms on assessment in pediatric asthma

The relationship between teen-reported nocturnal asthma symptoms and daily functioning

OBJECTIVE

This study aims to identify associations between nocturnal asthma awakenings and functional health outcomes in a cohort of teenagers with asthma.

METHODS

We analyzed baseline data from teenagers enrolled in SB-ACT, an NIH-funded RCT. During an at-home baseline survey, teenagers with asthma answered questions about demographics, recent asthma symptoms, and functional health outcomes. We conducted regression analyses to explore the relationship between persistent nocturnal asthma symptoms (≥2 nights of nocturnal asthma awakenings in the past 14 days) and functional health measures.

RESULTS

Of the 430 teens enrolled (Participation rate = 79%, Mean Age = 13.4), 30% reported persistent nocturnal asthma symptoms. Compared to teens with intermittent nocturnal asthma symptoms, teens with persistent nocturnal asthma symptoms were more likely to report physical limitation during strenuous activities (OR = 1.9, 1.3-3.0), moderate activities (OR = 1.9, 1.2-3.1), and school gym (OR = 2.4, 1.5-3.8). They were also more likely to report depressive symptoms (OR = 2.3, 1.5-3.6), more asthma-related school absenteeism in the past 14 days (0.81 vs 0.12, p < 0.01) and poorer quality of life (4.6 vs 5.9, p < 0.01). These findings remained significant when controlling for daytime asthma symptoms, weight status, race, ethnicity, gender, age, and smoke exposure.

CONCLUSIONS

In this cross-sectional study, persistent nighttime asthma symptoms were associated with poor functional health outcomes among teens, independent of day-time symptoms. Identifying nighttime symptoms and improving asthma control at night may positively impact daily functioning for these teens.

Persistent ventilation inhomogeneity after an acute exacerbation in preschool children with recurrent wheezing

BACKGROUND

Preschool children with recurrent wheezing suffer high morbidity. It is unclear whether objective measures of asthma control, such as pulmonary function tests (PFTs), provide additional information to the clinical assessment.

METHODS

We recruited children between 3 and 6 years old, with a history of recurrent wheezing in the preceding year and treated for acute wheezing exacerbation in the emergency department (ED) into an observational cohort study. Children attended two outpatient visits: the first study visit within five days of discharge from the ED and the second study visit 12 weeks after the ED visit. We performed standardized symptom score (test for respiratory and asthma control in kids (TRACK)), multiple breath washout (MBW), spirometry, and clinical assessment at both visits.

RESULTS

Seventy-four children, mean (standard deviation (SD)) age of 4.32 years (0.84), attended both visits. Paired FEV_0.75 and lung clearance index (LCI) measurements at both time points were obtained in 37 and 34 subjects, respectively. Feasibility for all tests improved at visit 2 and was not age-dependent. At the second study visit, a third had controlled asthma based on the TRACK score, and the mean lung clearance index (LCI) improved from 9.86 to 8.31 (P = .003); however, 46% had an LCI in the abnormal range. FEV_0.75 z-score improved from -1.66 to -1.17 (P = .05) but remained in the abnormal range in 24%. LCI was abnormal in more than half of the children with "well-controlled" asthma based on the TRACK score. There was no correlation between PFT measures and TRACK scores at either visit.

CONCLUSIONS

Lung clearance index demonstrates a persistent deficit post-exacerbation in a large proportion of preschoolers with recurrent wheezing, highlighting that symptom scores alone may not suffice for monitoring these children.

The impact of care management for high-risk pediatric asthmatics on healthcare utilization

INTRODUCTION

From 2011 to 2015, a series of quality improvement interventions were developed that targeted pediatric persistent asthmatics that included recalls for those overdue for care and access to specialist care. The objective of this study was to assess the impact on urgent care and emergency department visits and hospitalizations from enrollment into at least one intervention during the time period.

METHODS

Persistent asthmatics were identified through electronic medical records, with patients having an asthma designation containing "persistent," asthma control containing "poor", and asthma risk being "high risk." Asthma utilization events were identified for these patients between January 1, 2011, and June 30, 2015 using ICD-9 diagnosis codes. Evaluation focused on differences in utilization for patients before and after receiving interventions through the use of logistic regression for each utilization outcome.

RESULTS

The interventions were delivered to 1060 children out of a total of 2046 identified as having the persistent asthmatic criteria. The intervention group consisted of 389 (36.7%) moderate persistent asthmatics and 643 (60.7%) mild persistent asthmatics, with 976 (92.1%) identifying as a minority. Analysis of 60692 months of data showed patients who received the intervention were less likely to visit the urgent care (OR [0.80, 0.96]) or be hospitalized (OR [0.37, 0.75]) than those who did not receive any interventions. Adjustment for provider referral into the interventions resulted in slight changes for both hospitalizations (OR [0.38, 0.79]) and urgent care (OR [0.68, 0.94]).

CONCLUSION

Children receiving interventions were less likely to be hospitalized or visit urgent care clinics.

Improving the global diagnosis and management of asthma in children

Asthma is the most common chronic condition in children worldwide. It affects daytime activities, sleep and school attendance and causes anxiety to parents, families and other carers. The quality of asthma diagnosis and management globally still needs substantial improvement. From infancy to the teenage years, there are age-specific challenges, including both underdiagnosis and overdiagnosis with stigma-related barriers to treatment in some cultures and in adolescents. Guidelines are increasingly evidence based, but their impact on improving outcomes has been negligible in many parts of the world, often due to lack of implementation. New thinking is needed to enable substantial improvements in outcomes. The disease varies globally and plans will need to differ for individual countries or places where region-specific barriers prevent optimal care. A wide selection of educational activities is needed, including community-targeted initiatives, to engage with families. The Paediatric Asthma Project Plan has been initiated to strengthen diagnosis and management of asthma. This encompasses a vision for the next 10–15 years, building on the knowledge and experience from previous educational projects. It will take into account the educational needs of patients, carers and healthcare professionals as well as the accessibility and affordability of medication, particularly in low and middle-income countries where the prevalence of asthma is rising more rapidly. This overview presents a first step for those involved in the diagnosis and management of childhood asthma to strengthen care for children globally.

Visual analogue scale (VAS) as a monitoring tool for daily changes in asthma symptoms in adolescents: a prospective study

Background

Success in asthma management hinges on patients’ competency to detect and respond to ever-changing symptom severity. Thus, it is crucial to have reliable, simple, and sustainable methods of symptom monitoring that can be readily incorporated into daily life. Although visual analogue scale (VAS) has been considered as a simple symptom assessment method, its utility as a daily symptom monitoring tool in adolescents is unknown. This study was to determine the concurrent validity of VAS in capturing diurnal changes in symptoms and to examine the relationships between VAS and asthma control and pulmonary function.

Methods

Forty-two adolescents (12–17 years old) with asthma completed daily assessment of symptoms twice per day, morning and bedtime, for a week using VAS and 6-item symptom diary concurrently. Asthma control was measured at enrollment and 6 month later, and spirometry was conducted at enrollment. Pearson correlations, multilevel modeling and regression were conducted to assess the relationships between VAS and symptom diary, asthma control and FEV1.

Results

Morning and evening VAS was positively associated with symptom diary items of each corresponding time frame of the day (r = 0.41–0.58, p < 0.0001). Morning VAS was significantly predicted by morning diary data reflecting nocturnal wakening (β = 2.13, p = 0.033) and morning symptoms (β = 4.09, p = 0.002), accounting for 57% of the total variance of morning VAS. Similarly, changes in four evening diary items, particularly shortness of breath (β = 2.60, p = 0.028), significantly predicted changes in evening VAS, accounting for 55% of the total variance. Average VAS scores correlated with asthma control (r = 0.65, p < 0.001) and FEV1 (r = −0.38, p = 0.029), and were predictive of asthma control 6 months later (β = 0.085, p = 0.006).

Conclusions

VAS is a valid tool capturing diurnal changes in symptoms reflected in a multi-item symptom diary. Moreover, VAS is a valid measure predicting concurrent and future asthma control. The findings suggest VAS can be a simple alternative to daily dairies for daily symptom monitoring, which can provide invaluable information about current and future asthma control without substantially increasing self-monitoring burdens for adolescent patients.

Clinical Trial Registration NCT01696357. Registered 18 September 2012

Monitoring asthma in childhood

The goal of asthma treatment is to obtain clinical control and reduce future risks to the patient. However, to date there is limited evidence on how to monitor patients with asthma. Childhood asthma introduces specific challenges in terms of deciding what, when, how often, by whom and in whom different assessments of asthma should be performed. The age of the child, the fluctuating course of asthma severity, variability in clinical presentation, exacerbations, comorbidities, socioeconomic and psychosocial factors, and environmental exposures may all influence disease activity and, hence, monitoring strategies. These factors will be addressed in herein.

We identified large knowledge gaps in the effects of different monitoring strategies in children with asthma. Studies into monitoring strategies are urgently needed, preferably in collaborative paediatric studies across countries and healthcare systems.

Monitoring asthma in children is essential for disease control and should reflect age, triggers and disease activityhttp://ow.ly/J0k7f

Evaluating the Validity of an Automated Device for Asthma Monitoring for Adolescents: Correlational Design

BACKGROUND

Symptom monitoring is a cornerstone of asthma self-management. Conventional methods of symptom monitoring have fallen short in producing objective data and eliciting patients' consistent adherence, particularly in teen patients. We have recently developed an Automated Device for Asthma Monitoring (ADAM) using a consumer mobile device as a platform to facilitate continuous and objective symptom monitoring in adolescents in vivo.

OBJECTIVE

The objectives of the study were to evaluate the validity of the device using spirometer data, fractional exhaled nitric oxide (FeNO), existing measures of asthma symptoms/control and health care utilization data, and to examine the sensitivity and specificity of the device in discriminating asthma cases from nonasthma cases.

METHODS

A total of 84 teens (42 teens with a current asthma diagnosis; 42 without asthma) aged between 13 and 17 years participated in the study. All participants used ADAM for 7 consecutive days during which participants with asthma completed an asthma diary two times a day. ADAM recorded the frequency of coughing for 24 hours throughout the 7-day trial. Pearson correlation and multiple regression were used to examine the relationships between ADAM data and asthma control, quality of life, and health care utilization at the time of the 7-day trial and 3 months later. A receiver operating characteristic (ROC) curve analysis was conducted to examine sensitivity and specificity based on the area under the curve (AUC) as an indicator of the device's capacity to discriminate between asthma versus nonasthma cases.

RESULTS

ADAM data (cough counts) were negatively associated with forced expiratory volume in first second of expiration (FEV1) (r=-.26, P=.05), forced vital capacity (FVC) (r=-.31, P=.02), and overall asthma control (r=-.41, P=.009) and positively associated with daily activity limitation (r=.46, P=.01), nighttime (r=.40, P=.02) and daytime symptoms (r=.38, P=.02), and health care utilization (r=.61, P<.001). Device data were also a significant predictor of asthma control (β=-.48, P=.003), quality of life (β=-.55, P=.001), and health care utilization (β=.74, P=.004) after 3 months. The ROC curve analysis for the presence of asthma diagnosis had an AUC of 0.71 (95% CI 0.58-0.84), which was significantly different from chance (χ(2) 1=9.7, P=.002), indicating the device's discriminating capacity. The optimal cutoff value of the device was 0.56 with a sensitivity of 51.3% and a specificity of 72.7%.

CONCLUSIONS

This study demonstrates validity of ADAM as a symptom-monitoring device in teens with asthma. ADAM data reflect the current status of asthma control and predict asthma morbidity and quality of life for the near future. A monitoring device such as ADAM can increase patients' awareness of the patterns of cough for early detection of worsening asthma and has the potential for preventing serious and costly future consequences of asthma.

Relationships among obesity, physical activity and sedentary behavior in young adolescents with and without lifetime asthma

OBJECTIVE

To examine the inter-relationships among body mass index (BMI), physical activity, sedentary behavior and gender in urban, low-income, primarily African American young adolescents with or without lifetime asthma.

METHODS

Data were collected in 2002-2004 from 626 12-year old adolescents who were children of women who participated in the New Mother's Study in Memphis, TN (1990-1991). Adolescents with and without asthma were compared on BMI, physical activity and sedentary behavior. Multiple linear regression models were used to examine the association of asthma, gender and BMI with physical activity and sedentary behavior.

RESULTS

Complete data were available for 545 adolescents. Eleven percent of adolescents had lifetime asthma. Asthma and gender were associated with high-intensity physical activity (p < 0.001). Adolescents with asthma participated in less physical activity and girls participated less than boys. Gender was associated with sedentary behavior (p < 0.001): boys used personal computer (pc)/video after school more than girls. Girls with asthma had a higher BMI than girls without asthma (p = 0.027). Boys with asthma were less physically active than boys without asthma (p < 0.05).

CONCLUSIONS

Adolescents with asthma are less physically active than those without asthma and girls are less active than boys. Clinicians who provide care for adolescents with asthma are encouraged to assess physical activity/sedentary behavior and provide guidance that promotes active lifestyles. A longitudinal study is needed to shed light on the unique contribution of asthma separated from the effects of overweight/obesity on physical activity and sedentary behaviors.

[Knowledge and experience of 2- to 15-year-old children's parents consulting in pediatric emergency departments for asthma]

INTRODUCTION

This study aimed at assessing parents' knowledge and perception in relation to their child's condition when arriving at the emergency ward following an asthma attack. The overall objective was to determine how parent education could be improved.

MATERIALS AND METHODS

This study was conducted over 9 months as a multicenter descriptive and qualitative study based on a self-administered questionnaire for parents of asthmatic children, aged 2-15 years.

RESULTS

The questionnaire was delivered to 88 children out of 1472 (6%). Approximately 69% of the children included in the study presented with partially controlled or uncontrolled asthma. Fifty percent of the patients were insufficiently monitored and without therapy. Half of the parents said they had never received any information concerning their child's condition. The majority (86%) did not know the basic cause of the disease, 30% percent were unable to detect the features of clinical exacerbation, and 17% were not using an adequate emergency protocol. The illness experience was relatively easy for two-thirds of the children and the parents' perceptions were in line in 50% of the cases.

DISCUSSION

Knowledge of parents and their children suffering from asthma is insufficient for optimal control and disease management. Instructions on detecting the signs of asthma severity as well as the establishment of an individualized emergency protocol and medical follow-up should be of prime concern and could reduce emergency department use.

CONCLUSION

Doctors have a key role to play in educating and explaining disease characteristics to patients and their families. Therapeutic education also needs to be intensified.

Monitoring asthma in children

The goal of asthma treatment is to obtain clinical control and reduce future risks to the patient. To reach this goal in children with asthma, ongoing monitoring is essential. While all components of asthma, such as symptoms, lung function, bronchial hyperresponsiveness and inflammation, may exist in various combinations in different individuals, to date there is limited evidence on how to integrate these for optimal monitoring of children with asthma. The aims of this ERS Task Force were to describe the current practise and give an overview of the best available evidence on how to monitor children with asthma. 22 clinical and research experts reviewed the literature. A modified Delphi method and four Task Force meetings were used to reach a consensus. This statement summarises the literature on monitoring children with asthma. Available tools for monitoring children with asthma, such as clinical tools, lung function, bronchial responsiveness and inflammatory markers, are described as are the ways in which they may be used in children with asthma. Management-related issues, comorbidities and environmental factors are summarised. Despite considerable interest in monitoring asthma in children, for many aspects of monitoring asthma in children there is a substantial lack of evidence.

Will symptom-based therapy be effective for treating asthma in children?

Traditionally, symptoms are important patient-oriented outcomes in asthma treatment, and assessment of symptoms is an essential component of assessing asthma control. However, variable airways obstruction, airways hyperresponsiveness and chronic inflammation are key components of the asthma syndrome, and correlations among these hallmarks and symptoms are weak or even absent. Therefore, it might be questioned if symptom-based therapy is effective for treating asthma in (all) children. To date, there is no firm indication that monitoring asthma based on repetitive lung function measurement or markers of airway inflammation is superior to monitoring based on symptoms only. In the majority of patients, symptom-based asthma management may well be sufficient, and in preschool children, symptoms are presently the only feasible outcome. Nevertheless, there is some evidence that selected groups might benefit from an approach that takes into account individual phenotypic characteristics. In patients with poor perception, those with a discordant phenotype and those with persistent severe asthma, considering lung function, airways hyperresponsiveness and inflammatory markers in treatment decisions might improve outcomes.

Mobile phone-based asthma self-management aid for adolescents (mASMAA): a feasibility study

PURPOSE

Adolescents report high asthma-related morbidity that can be prevented by adequate self-management of the disease. Therefore, there is a need for a developmentally appropriate strategy to promote effective asthma self-management. Mobile phone-based technology is portable, commonly accessible, and well received by adolescents. The purpose of this study was to develop and evaluate the feasibility and acceptability of a comprehensive mobile phone-based asthma self-management aid for adolescents (mASMAA) that was designed to facilitate symptom monitoring, treatment adherence, and adolescent-parent partnership. The system used state-of-the-art natural language-understanding technology that allowed teens to use unconstrained English in their texts, and to self-initiate interactions with the system.

MATERIALS AND METHODS

mASMAA was developed based on an existing natural dialogue system that supports broad coverage of everyday natural conversation in English. Fifteen adolescent-parent dyads participated in a 2-week trial that involved adolescents' daily scheduled and unscheduled interactions with mASMAA and parents responding to daily reports on adolescents' asthma condition automatically generated by mASMAA. Subsequently, four focus groups were conducted to systematically obtain user feedback on the system. Frequency data on the daily usage of mASMAA over the 2-week period were tabulated, and content analysis was conducted for focus group interview data.

RESULTS

Response rates for daily text messages were 81%-97% in adolescents. The average number of self-initiated messages to mASMAA was 19 per adolescent. Symptoms were the most common topic of teen-initiated messages. Participants concurred that use of mASMAA improved awareness of symptoms and triggers, promoted treatment adherence and sense of control, and facilitated adolescent-parent partnerships.

CONCLUSION

This study demonstrates the utility and user acceptability of mASMAA as a potential asthma self-management tool in a selective group of adolescents. Further research is needed to replicate the findings in a large group of adolescents from sociodemographically diverse backgrounds to validate the findings.

Management of asthma: the current US and European guidelines

Asthma management guidelines aim to improve the implementation of current knowledge into daily clinical practice by establishing a consensus of scientific practices for the management of asthma. Initial guidelines were based on consensus of expert opinion in order to employ a severity-based classification system as a guide to treatment. However, advances in asthma research led to the development of evidence-based guidelines and a major paradigm shift to control-based asthma management. Control-based management is central to the published guidelines developed by The National Heart, Lung, and Blood Institute (NHLBI), The Global Initiative for Asthma (GINA), and The British Thoracic Society (BTS), each one using the same volume of evidence but emphasizing aspects particular to their specific patient populations and socioeconomic needs. This chapter summarizes the evolution of these guidelines and summarizes the key points and evidence used in the recommendations for the assessment, monitoring, and management of asthma in all ages, with particular emphasis on the NHLBI guidelines.

Symptoms, feelings, activities and medication use in adolescents with uncontrolled asthma: lessons learned from asthma diaries

This study was to describe symptoms, feelings, activities and medication use reported by adolescents with uncontrolled asthma on their 24-hour asthma diaries. Adolescents with uncontrolled asthma (13-17 years, N=29) completed asthma diaries and audio-recorded symptom sounds for 24 hours. A variety of symptoms were reported, and the most frequently reported symptoms were coughing followed by wheezing. Most self-reported coughing and wheezing were verified by audio-recordings. Participants reported predominantly negative feelings and low levels of activities. High discordance between self-reports and medical records in medications was noted, raising a concern of poor treatment adherence in this vulnerable group.

Does using an asthma prompting form improve asthma care in a pediatric office?

An asthma exacerbation can be a life-threatening experience. This project tested the effectiveness of using a prompting form to improve childhood asthma care. Thirty randomly selected charts without a prompt form in a pediatric practice were compared for differences with thirty randomly selected charts with a completed prompting form. The number of medications reviewed (p=.001) and the frequency of refills written (p=.024) were significantly higher in the prompt group. Education was higher (p=.000) and triggers were more frequently discussed in the prompt group. The use of a prompting form facilitates discussion and improves preventive asthma care.

The expert network and electronic portal for children with respiratory and allergic symptoms: rationale and design

Data on baseline characteristics of children with asthma to predict individual treatment responses are lacking. We aimed to set up a data-collection system which can easily fill this gap in clinical practice.A web-based application was developed, named 'Portal for children with respiratory and allergic symptoms', hereafter called Electronic Portal (EP). It contains health- and disease-related questionnaires on respiratory- and allergic diseases. All patients, 1-18 years of age, with respiratory- and/or allergic complaints are invited to enter the EP before their first visit. By using the EP large amounts of data, gathered during routine patient care can be used for research purposes. This may help to further investigate the different treatment related asthma phenotypes and will be helpful to monitor risk factors for other atopic diseases and respiratory infections.

[Mild asthma in children: new data and a revival of interest]

According to the Global Initiative for Asthma (GINA) classification, mild asthma includes intermittent and mild persistent asthma. It represents more than 75% of asthmatic children. The symptoms and functional impact are well described. Mild asthma can lead to severe exacerbations. Progression to more severe disease may occur. Consequently, it is important to diagnose mild asthma, to initiate the appropriate treatment early, and to identify the risk factors for aggravation. Nevertheless, mild asthma is under-diagnosed and under-treated. Bronchial inflammation and remodeling are observed in mild asthma. A daily low-dose of inhaled corticosteroids is the reference treatment for mild persistent asthma. Intermittent inhaled corticosteroids cannot be recommended in children with mild persistent asthma.

Asthma outcomes: exacerbations

BACKGROUND

The goals of asthma treatment include preventing recurrent exacerbations. Yet there is no consensus about the terminology for describing or defining "exacerbation" or about how to characterize an episode's severity.

OBJECTIVE

National Institutes of Health institutes and other federal agencies convened an expert group to propose how asthma exacerbation should be assessed as a standardized asthma outcome in future asthma clinical research studies.

METHODS

We used comprehensive literature reviews and expert opinion to compile a list of asthma exacerbation outcomes and classified them as either core (required in future studies), supplemental (used according to study aims and standardized), or emerging (requiring validation and standardization). This work was discussed at a National Institutes of Health-organized workshop in March 2010 and finalized in September 2011.

RESULTS

No dominant definition of "exacerbation" was found. The most widely used definitions included 3 components, all related to treatment, rather than symptoms: (1) systemic use of corticosteroids, (2) asthma-specific emergency department visits or hospitalizations, and (3) use of short-acting β-agonists as quick-relief (sometimes referred to as "rescue" or "reliever") medications.

CONCLUSIONS

The working group participants propose that the definition of "asthma exacerbation" be "a worsening of asthma requiring the use of systemic corticosteroids to prevent a serious outcome." As core outcomes, they propose inclusion and separate reporting of several essential variables of an exacerbation. Furthermore, they propose the development of a standardized, component-based definition of "exacerbation" with clear thresholds of severity for each component.

Effect of peak flow monitoring on child asthma quality of life

The purpose of this study was to evaluate the effect of peak flow monitoring on asthma quality of life (QOL) for school-age children with asthma (N = 77) who participated in a 16-week asthma self-management program. QOL was measured using the Children's Health Survey for Asthma. Findings indicated significant improvement in asthma QOL from baseline to Week 16 and higher QOL scores for those with better asthma health outcomes.

Evaluation of fluticasone propionate and fluticasone propionate/salmeterol combination on exercise in pediatric and adolescent patients with asthma

OBJECTIVE

This study was designed to demonstrate that four weeks of fluticasone propionate (FP) 100 micrograms (mcg) combined with salmeterol 50 mcg twice daily (BID) via DISKUS(®) resulted in protection against bronchospasm induced by activity, as measured by standardized exercise challenge testing in pediatric and adolescent subjects who required regular use of inhaled corticosteroids for the treatment of persistent asthma.

METHODS

Prior to study entry, all patients reported regular use of inhaled corticosteroids (ICS). During screening all patients demonstrated ≥20% fall in FEV(1) following exercise.

RESULTS

A total of 231 subjects aged 4 to 17 were randomized to the two study treatments: 113 to the FP/salmeterol combination group (FSC) and 118 to receive FP 100 mcg BID. Of the subjects randomized, 106 (94%) subjects in the FSC 100/50 group and 108 (92%) subjects in the FP 100 group completed the study. At the end of treatment (Week 4), both FSC and FP protected against a fall in FEV(1) following exercise in patients who at baseline experienced ≥20% fall in FEV(1) following exercise. A mean decrease in FEV(1) of 9.9% was observed in the FSC 100/50 group as compared with a mean decrease of 11.1% in the FP 100 group; there was no statistical difference between treatments.

CONCLUSION

Both FSC 100/50 and FP 100 provided protection against an exercised-induced fall in FEV(1); but statistically significant differences we not noted. Both treatments were well-tolerated over four weeks and FSC 100/50 had an adverse event profile comparable to that observed with FP 100.

Is Johnny wheezing? Parent-child agreement in the Childhood Asthma in America survey

We compared responses of children and parents to determine their level of agreement in a national, population-based survey regarding asthma-related health of US children. A telephone-based survey was conducted in 2004 among a national probability sample of children with current asthma in the United States. To compare responses between parent-child pairs, a subset of 284 children aged 10-15 were interviewed in addition to the parents. This survey collected data on asthma symptom prevalence, physical activity limitations and impact of exercise on asthma, and asthma management including medication use. Paired responses were compared using the kappa (κ) statistic. Overall, parents of 10-15-yr-olds underestimated the burden of asthma experienced by their children, especially the effects on physical activity. More than half (58%) of children replied that exercise was a trigger for their asthma compared to only 35% of parents (κ 0.23). Children were more likely than parents to mention activity limitations, specifically avoiding physical exertion (63% vs. 49%-κ 0.004). Prevalence of symptoms was also underreported by parents relative to children, particularly breathing problems (41% vs. 67%-κ 0.16) and cough (45% vs. 64%-κ 0.14). Maintenance therapy use in the past 4 weeks was reported by 35% of children, whereas 44% of parents believed their children had used maintenance therapy (κ 0.47). Relative to children's self-report, parents underestimated avoidance tactics used by their children with asthma, including exercise and physical activity self-limitation to prevent the onset or worsening of asthma symptoms. Parents also underreported asthma symptoms of their children aged 10-15 years old and were discordant with their children regarding medication use. Increasing regular communication about asthma between child, parent, and physician is warranted to improve asthma control and overall health.

Outpatient management of asthma in children age 5-11 years: guidelines for practice

PURPOSE

To increase awareness among nurse practitioners (NPs) regarding diagnostic and treatment guidelines for asthma for the 5-11 year age group recently updated by the National Asthma Education Prevention Program-Expert Panel 3 (NAEPP-EPR3).

DATA SOURCES

NAEPP-EPR3 guidelines for the diagnosis and management of asthma released from the National Heart, Lung, and Blood Institute in August 2007, selected clinical trials, meta-analyses, and clinical reviews.

CONCLUSIONS

Recent research has revealed that children suffering from asthma in the United States are underdiagnosed and their asthma is poorly controlled. Compelling evidence supports that children classified as having persistent asthma following NAEPP-EPR3 guidelines benefit from daily inhaled corticosteroid therapy, yet many are misclassified and undertreated.

IMPLICATIONS FOR PRACTICE

With application of current guidelines from NAEPP-EPR3, NPs can more effectively assess, diagnose, treat, and foster a collaborative self-management plan for children age 5-11 years. These interventions will result in an improved quality of life and decreased health risks for this young population.

'Difficult asthma': can symptoms be controlled in a structured environment?

OBJECTIVE

Difficult asthma implies persistent asthma symptoms despite therapy with high doses of inhaled corticosteroids. The objective was to evaluate children with difficult asthma in a setting that excludes aggravating factors such as poor treatment adherence and adverse environmental influences.

PATIENTS AND METHODS

Sixty children (> or =6 years) had been referred because of difficult asthma to the rehabilitation centre over a period of 10 years. The diagnosis of poor asthma symptom control was confirmed if exacerbations continued during stay in the centre or if symptoms interfered with daily activities at least 3 times a week.

RESULTS

The median stay at the centre was 5 months. In four patients a diagnosis other than asthma was made. In five patients symptom control remained difficult. In the remaining 51 children, asthma symptoms became well controlled. Many factors contributed to poor asthma control in the home setting: poor treatment adherence (n = 32), parental smoking (n = 22), allergen exposure (n = 10). Psychosocial problems occurred in 36 children. Contributing factors often co-existed. During stay at the centre, lung function improved in the group with well controlled asthma symptoms (P < 0.001) but not in the group with continued poor symptom control. In the majority of children who obtained good symptom control, this persisted in the years following discharge.

CONCLUSION

Of 60 children referred with a diagnosis of difficult asthma, optimal medical management in a structured environment resulted in good symptom control in 51 patients; symptom control remained poor in 5 patients, a diagnosis other than asthma was made in 4 patients.

Asthma self-assessment in a Medicaid population

BACKGROUND

Self-assessment of symptoms by patients with chronic conditions is an important element of disease management. A recent study in a commercially-insured population found that patients who received automated telephone calls for asthma self-assessment felt they benefitted from the calls. Few studies have evaluated the effectiveness of disease self-assessment in Medicaid populations. The goals of this study were to: (1) assess the feasibility of asthma self-assessment in a population predominantly insured by Medicaid, (2) study whether adding a gift card incentive increased completion of the self-assessment survey, and (3) evaluate how the self-assessment affected processes and outcomes of care.

METHODS

We studied adults and children aged 4 years and older who were insured by a Medicaid-focused managed care organization (MCO) in a pre- and post-intervention study. During the pre-incentive period, patients with computerized utilization data that met specific criteria for problematic asthma control were mailed the Asthma Control Test (ACT), a self-assessment survey, and asked to return it to the MCO. During the intervention period, patients were offered a $20 gift card for returning the completed ACT to the MCO. To evaluate clinical outcomes, we used computerized claims data to assess the number of hospitalization visits and emergency department visits experienced in the 3 months after receiving the ACT. To evaluate whether the self-management intervention improved processes of care, we conducted telephone interviews with patients who returned or did not return the ACT by mail.

RESULTS

During the pre-incentive period, 1183 patients were identified as having problems with asthma control; 25 (2.0%) of these returned the ACT to the MCO. In contrast, during the incentive period, 1612 patients were identified as having problems with asthma control and 87 (5.4%) of these returned the ACT to the MCO (p < 0.0001). Of all 95 ACTs that were returned, 87% had a score of 19 or less, which suggested poor asthma control.During the 3 months after they received the ACT, patients who completed it had similar numbers of outpatient visits, emergency department visits, and hospitalizations for asthma as patients who did not complete the ACT. We completed interviews with 95 patients, including 28 who had completed the ACT and 67 who had not. Based on an ACT administered at the time of the interview, patients who had previously returned the ACT to the MCO had asthma control similar to those who had not (mean scores of 14.2 vs. 14.6, p = 0.70). Patients had similar rates of contacting their providers within the past 2 months whether they had completed the mailed ACT or not (71% vs. 76%, p = 0.57).

CONCLUSION

Mailing asthma self-assessment surveys to patients with poorly controlled asthma was not associated with better asthma-associated outcomes or processes of care in the Medicaid population studied. Adding a gift card incentive did not meaningfully increase response rates. Asthma disease management programs for Medicaid populations will most likely need to involve alternative strategies for engaging patients and their providers in managing their conditions.

Fluticasone propionate/salmeterol and exercise-induced asthma in children with persistent asthma

RATIONALE

Exercise is a common trigger in children with persistent asthma and inhaled corticosteroids have been shown to effectively treat clinical manifestations of persistent asthma, including protection from decrements in lung function caused by exercise. The goal of this study was to evaluate the effectiveness of fluticasone propionate/salmeterol 100/50 mcg compared with fluticasone propionate 100 mcg for the prevention of airflow limitation triggered by standardized exercise challenge in pediatric and adolescent patients with persistent asthma.

METHODS

Multicenter, randomized, double-blind, parallel group trial of 248 subjects with persistent asthma (age 4-17 years) randomized to receive fluticasone propionate/salmeterol (100/50 mcg twice daily) or fluticasone propionate alone (100 mcg twice daily) via Diskus for 4 weeks. Exercise challenge tests were performed during screening and approximately 8 hr after administration of the blinded study medication on Treatment Day 28.

RESULTS

After 4 weeks of therapy both treatments provided protection following exercise challenge. The protection estimated by the maximal fall in FEV(1) was significantly better for fluticasone propionate/salmeterol (9.5 +/- 0.8% [mean +/- SE]) compared with fluticasone propionate alone (12.7 +/- 1.1%, P = 0.021). Statistically significant differences were not observed for asthma rescue-free days and asthma symptom-free days.

CONCLUSION

Chronic dosing with fluticasone propionate/salmeterol in a single device provides superior protection compared with an inhaled corticosteroid alone in protecting against exercise-induced asthma in children with persistent asthma.

Socioeconomic, family, and pediatric practice factors that affect level of asthma control

BACKGROUND

Multiple issues play a role in the effective control of childhood asthma.

OBJECTIVE

To identify factors related to the level of asthma control in children receiving asthma care from community pediatricians.

PATIENTS AND METHODS

Data for 362 children participating in an intervention study to reduce asthma morbidity were collected by a telephone-administered questionnaire. Level of asthma control (well controlled, partially controlled, or poorly controlled) was derived from measures of recent impairment (symptoms, activity limitations, albuterol use) and the number of exacerbations in a 12-month period. Data also included demographic characteristics, asthma-related quality of life, pediatric management practices, and medication usage. Univariable and multivariable analyses were used to identify factors associated with poor asthma control and to explore the relationship between control and use of daily controller medications.

RESULTS

Asthma was well controlled for 24% of children, partially controlled for 20%, and poorly controlled for 56%. Medicaid insurance, the presence of another family member with asthma, and maternal employment outside the home were significant univariable factors associated with poor asthma control. Medicaid insurance had an independent association with poor control. Seventy-six percent of children were reported by parents as receiving a daily controller medication. Comparison of guideline recommended controller medication with current level of asthma control indicated that a higher step level of medication would have been appropriate for 74% of these children. Significantly lower overall quality-of-life scores were observed in both parents and children with poor control.

CONCLUSIONS

Despite substantial use of daily controller medication, children with asthma continue to experience poorly controlled asthma and reduced quality of life. Although Medicaid insurance and aspects of family structure are significant factors associated with poorly controlled asthma, attention to medication use and quality-of-life indicators may further reduce morbidity.

An evaluation of pediatric asthma educational resources

The purpose of this study was to evaluate newly developed educational resources for children with asthma. Children with asthma, their parents, and pediatric health care professionals were invited to review age-appropriate asthma resources. Key findings revealed: (1) the perceived usefulness of these resources, particularly for creating discussion opportunities between children and their caregivers through implemented resource use; (2) the need for health education materials to balance goals of depth of information versus child enjoyment in order to increase effective knowledge transfer and application; and (3) a renewed call for future educational resources to be both relevant and interactive in their outreach and engagement of children, potentially involving mediums of advanced technology. Clinical experience and the literature note a current lack of pediatric asthma education materials. The positive findings of this review of novel educational materials in asthma address an important gap relative to pediatric practice, resource evaluation, and knowledge translation.

Participation in daily life of children with asthma

Asthma can have a negative effect on psychological and social well-being in childhood. Sports participation, school attendance, and quality of life are important issues for children with asthma and their parents. However, a structural evaluation of these factors is not always incorporated in the routine medical approach of children with asthma. Moreover, goals in asthma treatment, such as minimal symptoms and normal activity levels, are achieved in a minority of children. This review describes determinants that are important for the well-being of children with asthma and their parents. Besides the control of symptoms, factors such as sports participation, socializing in peer groups, school attendance, and quality of life must be considered. These issues are relevant when evaluating the management of children and adolescents with asthma. A multidisciplinary evaluation by a pediatrician, school nurse, gym teacher, and psychologist might contribute to an important decrease in the impact of asthma on daily life.

International differences in asthma guidelines for children

BACKGROUND

Over the last decade, a number of clinical practice guidelines that include guidance for the management of pediatric asthma have been introduced. The consistency across pediatric asthma guidelines is unknown and the emphasis on establishing asthma control may vary. The objective of this paper was to depict the evolution of guidelines for pediatric asthma and to compare current international guidelines in terms of their organization, presentation of evidence and consideration of children, with special emphasis on definitions of asthma control and severity.

METHODS

A systematic search to identify asthma guidelines was conducted, and guidelines were searched for pediatric terms. The approaches used by guidelines to define assessments of asthma severity and control were compared between the United States, the Global Initiative for Asthma, Canada, the United Kingdom and Australia.

RESULTS

Pediatric considerations in the management of asthma have been integrated into the various guidelines to different degrees and through varied strategies. There were differences in the conceptual and operational approach used to assess asthma which emphasized either asthma severity or control.

CONCLUSIONS

It will be important for future guidelines to clearly define whether the primary assessment parameter is asthma severity or control. Delineating the guideline development process and supporting evidence may improve transparency, consistency and guideline adherence.

[Follow up of asthmatic children: definition and measurement tools]

The guidelines for the management of asthma currently emphasise the concept of monitoring that reflects the activity of the disease over a period of several weeks. This principle is valid whatever the severity of the asthma. The monitoring tools are essentially clinical and functional. The clinical parameters (daytime and/or nocturnal symptoms, discomfort on exercise, beta-2 agonist usage) should be evaluated systematically at each consultation just as at the onset of exacerbations. A number of questionnaires have been developed (ATAQ, ACT...). At the functional level every asthmatic child should have the benefit of a respiratory function assessment, the frequency of which depends on the therapeutic management programme. Among the non-invasive measurements of airway inflammation the measurement of expired nitric oxide (NO) is the best established. The measurement of expired NO could improve some paraclinical parameters that are not monitored routinely.

Patterns of asthma control perception in adolescents: associations with psychosocial functioning

OBJECTIVE

The purpose was to identify and describe the patterns of asthma control perception in relation to actual symptom reports in adolescents and to compare the group with accurate control perception with those of inaccurate perception in relationship to sociodemographic characteristics, illness-related factors, and psychosocial factors.

METHODS

A sample of 126 adolescents from 13 through 20 years of age participated in the study. Patterns of control perception were constructed based on participants' rating of their perception of asthma control and self-reported asthma symptoms using Latent Class Analysis. Analyses of variance (ANOVAs) and multinomial logistic regressions were computed for group comparisons.

RESULTS

Participants were classified into four groups according to the patterns of control perception. Accurate groups were divided into either the well-controlled (62%) or the poorly-controlled group (7%), and inaccurate groups were manifested inaccuracy either with nighttime symptoms (25%) or daytime symptoms (6%). Minority participants (p < 0.001) or those with low socioeconomic status (p < 0.001) were more likely to be represented in the inaccurate group than their counterparts. The well-controlled accurate group consistently reported higher asthma-related knowledge (p = 0.02), more positive attitude toward asthma (p < 0.001), fewer barriers to self-management (p = 0.04), and higher quality of life (p < 0.001) than the inaccurate group.

CONCLUSION

This study demonstrated that accuracy of asthma control perception can be classified into four criteria based on patterns of various asthma symptoms. Adolescents' tendency toward underperception was evident. The inaccurate groups are at greater risk for psychosocial impairments. This study underscores the importance of an intervention that improves the accuracy of asthma control perception in adolescents while promoting psychosocial well-being among adolescents with inaccurate perception.

[Variability in peak expiratory flow does not classify asthma according to severity]

OBJECTIVE

The aim of this study was to determine whether variability in peak expiratory flow (PEF) could be used to classify the level of severity of asthma in children.

PATIENTS AND METHODS

We studied 387 boys and girls diagnosed with asthma and classified severity according to clinical criteria (Spanish Society of Pediatric Pneumology). PEF variability was determined using a portable mini-Wright peak flow meter (Clement Clarke International, London, UK; range, 50 L/min-800 L/min) over a 14-day period, with no changes in normal treatment. The following indices were used to calculate PEF variability: 1) difference between morning PEF and nighttime PEF, expressed as a percentage of the mean value of the PEF measurements taken on that day; 2) minimum PEF rate during a week, expressed as a percentage of the highest value recorded during that week; 3) difference between the highest and the lowest PEF values, expressed as a percentage of the highest value; and 4) the 10th percentile of PEF values recorded during a week, expressed as a percentage of the highest value recorded during that week. We assessed agreement between clinical classification and PEF variability using the weighted kappa coefficient. We also analyzed the sensitivity and specificity of PEF variability indices for episodic and persistent asthma.

RESULTS

The analysis of levels of agreement between clinical classification of asthma and formulas 1, 2, 3, and 4 gave quadratic weighted kappa coefficients of 0.494, 0, 0.488, and 0.346, respectively. The results were similar when patients were grouped and analyzed by type of asthma (episodic or persistent asthma).

CONCLUSIONS

The monitoring of PEF variability, a recommendation common in national and international guidelines on the management of asthma in children, is not valid for classifying severity of asthma in children.

Clinical profile, health-related quality of life, and asthma control in children attending US asthma camps

BACKGROUND

Approximately 120 asthma camps presently serve nearly 10,000 children nationwide. A clinical profile of the children who attend asthma camps has not been published.

OBJECTIVES

To create a standardized universal health history camp application that includes an assessment of health-related quality of life using the Child Asthma Short Form; to test a newly validated tool, the Childhood Asthma Control Test (C-ACT), to assess asthma control in children; to provide a clinical snapshot of the overall status of children with asthma in the United States; and to determine the benefit of children's asthma camps.

METHODS

Participating camps distributed the universal health history and the Child Asthma Short Form as part of their application. The C-ACT was distributed separately.

RESULTS

A total of 1,783 campers from 24 camps in 17 states provided the requested information. Camp attendees generally had moderately severe asthma, as indicated by a mean +/- SD parent-reported severity rating of 4.86 +/- 2.10 on a 10-point scale. Average daytime and nighttime symptom scores and functional limitation scores indicated children moderately burdened by their asthma symptoms. Using the C-ACT, 37% of children were found to have inadequately controlled asthma. Children who had attended asthma camp the previous year reported better use of asthma management tools, were more likely to be using controller therapy, and had more responsibility for taking their medication (P < .05).

CONCLUSION

The burden of asthma experienced by children attending asthma camps is substantial, suggesting that there is an opportunity to improve the lives of children attending asthma camps.

What constitutes maintenance asthma care? The pediatrician's perspective

OBJECTIVE

To describe how pediatricians report they provide maintenance care for children with persistent asthma, and to identify opportunities for improvement.

METHODS

An anonymous 34-item survey was completed by community pediatricians in St Louis, Missouri, between June 2005 and October 2005. Physicians reported the percentage of patients for whom they would prescribe inhaled corticosteroids, and selected from checklists the activities and questions they would use during a maintenance care visit.

RESULTS

A total of 135 (60%) of 225 eligible pediatricians responded. Respondents reported they prescribed inhaled corticosteroids for most patients (median 80% patients, range, 10%-100%). Although most respondents used specific questions to assess recent asthma burden including inquiring about the frequency of daytime (86%) and nighttime (83%) symptoms, fewer asked about activity limitations such as school absences (58%). Some reported using specific questions to assess medication adherence such as how often doses were missed (49%), or included collaborative activities to support daily self-management such as setting asthma care goals (60%), but fewer asked how symptoms were monitored (44%) or assessed the effect of the child's asthma on the parent and family (24%).

CONCLUSIONS

Findings from this self-reported physician survey suggest that asthma management practices fall short of optimal standards. Opportunities for improvement include more comprehensive and detailed assessment of asthma control and medication adherence, collaborative goal setting, and better collaboration with the parent to support effective self-management. Further interventions to reduce asthma morbidity need to support physicians with these activities.

The impact of inadequately controlled asthma in urban children on quality of life and productivity

BACKGROUND

The burden of inadequately controlled pediatric asthma on education and other daily activities is not well described.

OBJECTIVE

To evaluate asthma-related activity limitations and productivity losses among children and caregivers.

METHODS

Surveys were mailed to caregivers of children with asthma. Caregivers provided demographics, health-related quality of life (HRQL), workplace productivity, and asthma-related costs. Adolescents (aged 12-18 years) provided HRQL, asthma control, and school-based productivity, and young children (aged 4-11 years) completed an asthma control questionnaire with help from a caregiver.

RESULTS

Among the 239 respondents, the mean age was 10.1 years; 49% were girls. More than half were inadequately controlled as measured using the Asthma Control Test. Both HRQL and productivity were significantly lower in patients with inadequately controlled asthma compared with those with controlled asthma. In the previous year, caregivers reported missing 1.4 days of work due to their child's asthma, with the child missing an average of 4.1 school days. Fewer adolescents with controlled asthma reported missing 1 or more school days in the previous week compared with adolescents with inadequately controlled asthma (3.5% vs 34.0%; P < .001). There were similar differences in caregiver workdays missed and health care resource use: both were significantly higher in children with inadequately controlled asthma.

CONCLUSIONS

Inadequately controlled asthma has a significant impact on asthma-specific HRQL, school productivity and attendance, and work productivity of children and their caregivers.