Objectives: To assess the feasibility of a computer-based Standard Gamble (SG) visual prop whilst measuring utilities of different asthma health states at the same time.
Methods: Twenty adult asthma patients literate in either Malay or English language were conveniently sampled from a public hospital in Penang, Malaysia. They were interviewed by two trained interviewers using a bilingual script. Each patient was requested to value the given health states using Visual Analogue Scale (VAS) prior to SG exercise. There were three chronic health states (C1-C3) for 10 years, three temporary states (T1-T3) for 3 months, and two anchor states (healthy and dead). During the SG exercise, the visual prop was fully operated by the interviewers. The probability of being in a worse state was changed in a ‘ping-pong’ fashion until the indifference point was reached.
Results: All patients understood the SG exercise and rated SG easier than VAS. Around 85% (n=17) completed SG within 30 minutes. There was 90% (n=18) who ranked T3 as the worst temporary health state during VAS. Two patients provided logical inconsistency data in SG. The preferences by SG were higher than VAS. Preferences were also higher in temporary states measured by chained SG than other states by conventional SG. The mean utilities for C1=0.56 (SD 0.38), C2=0.47 (SD 0.33), C3=0.53 (SD 0.38), T1=0.65 (SD 0.31), T2=0.53 (SD 0.35), and T3=0.38 (SD 0.38).
Conclusions: The SG methods including the props are feasible for utilities measurement in asthma, based on the agreements achieved with other studies on the pattern of utilities measured in this preliminary study.
Objectives: The cost of acute exacerbations of asthma had not been well studied in literature. The aim of this study was to identify and quantify the (average) cost of moderate and severe exacerbations of asthma in patients attending tertiary-care setup in Malaysia. The related burden of exacerbations was also calculated.
Methods: The costs including lab investigation charges, unit costs of treatment per bed, medication charges, food costs, transportation costs and loss of productivity were calculated per asthma episode. Data was analysed by Statistical Package for the Social Sciences (SPSS) version 18.0 using various descriptive and inferential statistical tests.
Results: A median medical cost of acute exacerbation of asthma under Ministry of Health’s (MOH) perspective was USD 105.00 (RM338.47) per episode. Medication cost comprised the majority (52.38%) of the total medical costs. A median medical cost of acute exacerbation of asthma under patient’s perspective was USD 1.55 (RM4.99) per episode. ConclusionsAsthma exacerbation and length of stay in the hospital were proportional to the direct medical costs. In Malaysia, a substantial proportion of the direct medical cost of asthma treatment is heavily subsidised for the locals.
Bronchial asthma is an inflammatory disease of the airways manifested physiologically by a widespread narrowing of the air passages. Being an inflammatory disease of the airways, the most effective treatment available for the management of bronchial asthma are anti-inflammatory agents such as corticosteroids. However, it is known that at higher dosage levels, even inhaled corticosteroids have harmful systemic side-effects. Hence, justification of use of high-dose of inhaled corticosteroids can only be made if patients with severe asthma can be accurately identified. For this precise reason, methods have been devised to categorize asthma severity through various National Asthma Management Guidelines. The present guidelines predominantly stress on symptoms and lung functions as the yardstick for determining the severity of asthma attacks and parameters determining airway inflammation have not yet been incorporated into them. However, these guidelines have proved to be fairly accurate in determining asthma severity and in guiding the treatment in these patients and all healthcare personnel are strongly advised to follow them. It is hoped that future guidelines may incorporate measures of inflammation as well, in order to further improve the diagnostic and treatment modalities in these patients.
BACKGROUND: Budesonide/formoterol used for both maintenance and reliever therapy has been shown to benefit patients with persistent asthma. We evaluated patient satisfaction and asthma control among Malaysian patients prescribed budesonide/formoterol as single maintenance and reliever therapy in a real-life clinical practice.
METHODS: Adult patients diagnosed with partially controlled or uncontrolled asthma were recruited in a 6-month, prospective, open-label study involving ten hospital-based chest clinics in Malaysia. Patients were prescribed one or two inhalations of budesonide/formoterol Turbuhaler (160/4.5 μg per inhalation) twice daily as maintenance therapy and additional inhalation as reliever therapy. Maintenance doses were decided by physicians based on Global Initiative for Asthma-defined treatment objectives. The primary outcome measure was the change in mean Satisfaction with Asthma Treatment Questionnaire (SATQ) scores from baseline to an average of 3 months and 6 months. Secondary outcome was the change in mean Asthma Control Questionnaire 5-item version (ACQ-5) scores from baseline to an average of 3 months and 6 months and the proportion of patients achieving the minimum clinically important difference.
RESULTS: Of 201 eligible patients recruited, 195 completed the study. Overall, SATQ mean (standard deviation) score was significantly improved from 5.1 (0.76) at baseline to 5.5 (0.58) (P < 0.001). The increase was observed in all domains of SATQ and had occurred at 3 months for most patients. ACQ-5 mean (standard deviation) score was significantly reduced from 2.2 (1.13) at baseline to 1.2 (0.95) (P < 0.001). A total of 132 (67.7.1%) patients had achieved the minimal clinically important difference (≥0.5) of ACQ-5 scores at study end.
CONCLUSION: In a nationwide study, budesonide/formoterol maintenance and reliever therapy achieved greater patient satisfaction and better asthma control compared with previous conventional asthma regimes among Malaysian patients treated in a real-life practice setting. Such an approach may represent an important treatment alternative for our local patients with persistent asthma.
KEYWORDS: Malaysia; Symbicort; asthma; asthma control; budesonide/formoterol; maintenance and reliever therapy; satisfaction
Study site: Chest clinics, Hospitals, Malaysia
Objectives: To evaluate the long-term cost-effectiveness of RMTAC (an adjunct
pharmaceutical asthma management) vs. usual physician care clinic by using decision analytic modelling method. Methods: A dynamic adherence asthma Markov
cohort model was developed. The economic evaluation was based on a lifetime
horizon and cycle length of one month, from the healthcare provider‘s (Ministry
of Health) perspective, with the outcomes assessed in cost per QALY gained and
cost per hospitalization averted. Probabilities of asthma control-adherence states
from RMTAC database, costs from national sources, utilities using standard gamble method on Malaysia’s asthma patients, and other inputs from secondary data
sources were used to inform the probabilistic model, according to gender and age
subgroups. A scenario analysis was conducted to test the structural assumption on
follow-up visits after the final treatment visit. Results: In female subgroup, RMTAC
management dominates the usual care by having 0.91 (95% CI 0.24 – 1.69) QALY
gained and 0.58 (95% CI -2.30 – 6.23) hospitalization averted, at a lower cost. For male
subgroup, the ICERs were RM10 (95% CI -RM14431 – RM8323) per QALY gained and
RM18 (95% CI -RM35790 – RM30266) per hospitalization averted. At the willingnessto-pay threshold of RM29000 per an additional QALY gained, the RMTAC intervention
is likely to be cost-effective 99% and 57% of the time (for QALY and hospitalization
outcome, respectively). The analysis was robust to assumptions of follow-up visits
frequency and patients’ gender. Conclusions: Implementing RMTAC in Malaysia
has high probability of being more cost-effective than the usual care management
for both male and female subgroups across all age groups. Further investigation is
necessary to ensure that implementing this decision does not exceed the overall
national healthcare expenditure
Study site : Universiti Sains Malaysia, Penang, Malaysia
Though Western medicines and ideas about asthma have become popular in many Asian nations, local beliefs about treatment prevail. The multiracial society of Singapore shows a variety of beliefs about causes of asthma attacks (for example, the balance of yin and yang) and types of treatment--herbal remedies, inhaled versus eaten medicines, the influence of Ramadan. Many of the cultural practices mentioned are probably preserved among south east Asian minorities residing in the United Kingdom. Eastern treatments typically take a holistic approach to asthma and do not ignore the psychosomatic component of the disorder.
Asthmatic patients constitute up to 5% of admissions to medical wards in our area. Analysis of 1099 adult asthmatic admissions over a 3-year period showed that Malays composed 31% of patients (expected 23%), Indians composed 36% (expected 31%) and Chinese only 32% (expected 46%). There was a reduced prevalence of asthma in the Chinese (P less than 0.001). Male asthmatic admissions showed a non-seasonal cyclic variation (P less than 0.01) with an increasing trend in the number of admissions (P less than 0.02). The proportion of male to female asthmatic admissions did not differ. In a sample of 50 asthmatic patients, studied in detail, the mean age of onset was 33.3 years (range 6-74) while only 14% of subjects had onset of asthma before the age of 10 years. Although the clinical features of these patients differ from those of Caucasian asthmatics, skin prick tests and other features suggest that the majority of our patients suffer from extrinsic atopic asthma.
Study site: Hospital [unknown], Pulau Pinang, Malaysia
Suboptimal management of asthma can lead to increase morbidity and mortality. Unfortunately, this has become global issue and approximately 40% of asthmatic patients received suboptimal management in emergency department. Therefore, this study aimed to develop a tool to assess knowledge and clinical reasoning of healthcare providers on acute asthmatic management in emergency setting.
Method: The tool was developed via three phases: (a) domain identification, (b) domain blueprinting based the Global Initiative of Asthma (GINA) and the British Thoracic Society (BTS) guidelines, and (c) item generation for each domain for assessing knowledge and clinical reasoning. Three forms of validity evidence related to content, response process and internal structure were appraised. Content validity index (CVI), face validity index (FVI), and intraclass correlation coefficient (ICC) estimate the content validity, response process and internal structure of the tool.
Results: A new tool was developed, named as Knowledge and Clinical Reasoning of Acute Asthma Management in Emergency Department (K-CRAMED), which assesses knowledge and clinical reasoning on three domains related to management of acute asthma – diagnosis, treatment and disposition. CVI values for the three domains were more than 0.83. FVI values for the three domains among doctors and paramedics were at least 0.83. The ICC between scores given by emergency specialists was 0.989 (CI 95% 0.982, 0.994, p-value < 0.001).
Conclusion: The newly developed tool, named as K-CRAMED, is a valid tool to assess knowledge and clinical reasoning of healthcare providers who manage patients with acute asthma. Further validation is required to verify its validity in other setting.
Synthetic therapeutic drugs for asthma, a chronic airway inflammation characterised by strong eosinophil, mast cell, and lymphocyte infiltration, mucus hyper-production, and airway hyper-responsiveness, exhibit numerous side effects. Alternatively, the high antioxidant potential of palm oil phytonutrients, including vitamin E (tocotrienol-rich fractions; TRF) and carotene, may be beneficial for alleviating asthma. Here, we determined the therapeutic efficacy of TRF, carotene, and dexamethasone in ovalbumin-challenged allergic asthma in Brown Norway rats. Asthmatic symptoms fully developed within 8 days after the second sensitization, and were preserved throughout the time course via intranasal ovalbumin re-challenge. Asthmatic rats were then orally administered 30 mg/kg body weight TRF or carotene. TRF-treated animals exhibited reduced inflammatory cells in bronchial alveolar lavage fluid. TRF- and carotene-treated rats exhibited notable white blood cell reduction comparable to that from dexamethasone. TRF- and carotene-treatment also downregulated pro-inflammatory markers (IL-β, IL-6, TNF-α), coincident with anti-inflammatory marker IL-4 and IL-13 upregulation. Treatment significantly reduced asthmatic rat plasma CRP and IgE, signifying improved systemic inflammation. Asthmatic lung histology displayed severe edema and inflammatory cell infiltration in the bronchial wall, whereas treated animals retained healthy, normal-appearing lungs. The phytonutrients tocotrienol and carotene thus exhibit potential benefits for consumption as nutritional adjuncts in asthmatic disease.
We report a case of eosinophilic granulomatosis with polyangiitis (EGPA), a rare multisystem disorder characterized by difficult-to-control asthma, hypereosinophilia and polyneuropathy. We also discuss the Five Factor Score (FFS) risk stratification strategy, which is used to quantitate the extent of the disease and guide treatment strategy.
Perkembangan industri permotoran telah menyebabkan pencemaran udara yang menjadi faktor kepada peningkatan simptom masalah respiratori dalam kalangan kanak-kanak sekolah rendah. Kajian ini mengkaji perkaitan antara peningkatan simptom masalah kesihatan respiratori dalam kalangan kanak-kanak sekolah rendah dengan pendedahan terhadap pencemaran udara akibat lalu lintas. Kajian school-based jenis keratan lintang telah dilakukan di dua buah sekolah di daerah Kota Bharu, Kelantan iaitu Sekolah Kebangsaan Langgar dan Sekolah Kebangsaan Demit dengan melibatkan pelajar berumur 10, 11 dan 12 tahun. Saiz sampel seramai 124 orang (n = 124) dipilih menggunakan corak persampelan kebarangkalian iaitu persampelan rawak mudah. Responden disoal menggunakan instrumen yang telah disahihkan dan diadaptasi dari International Study of Asthma and Allergies in Childhood (ISAAC). Analisis data dilakukan dengan menggunakan Statistical Package For Social Sciences (SPSS). Hasil kajian menunjukkan peningkatan simptom masalah respiratori yang dihadapi oleh pelajar di dua buah sekolah rendah di Kota Bharu adalah berkait rapat dengan pencemaran udara yang berpunca dari lalu lintas dengan p < 0.05. Kajian mendapati pendedahan kepada bahan pencemar udara yang berpunca dari lalu lintas telah meningkatkan simptom masalah respiratori dalam kalangan kanak-kanak sekolah di rendah lokasi kajian.
To study the role of pulse oximetry in the assessment of acute asthma in children presenting to the A&E department, 360 children who presented themselves to the A&E department were enrolled into the study. Those admitted were found to have a lower mean Sa02 of 92% compared to those discharged with Sa02 of 94% (p < 0.001). After the initial treatment at the A&E, those admitted still have a lower mean Sa02 of 94% compared to those discharged with a mean Sa02 of 96% (p < 0.001). However taking Sa02 of 92% as a predictor of admission hada sensitivity of 39% and a specificity of 80% but it had a high negative predictive value of 92%. Hence pulse oximetry alone is not sensitive for predicting admission in acute asthma in children.
BACKGROUND: To compare health care utilization and cost by asthma severity and type of health insurance in Thailand.
METHODS: A retrospective cohort study using an electronic database was conducted in patients with asthma. Patients who were diagnosed with asthma from 2009 to 2011, had at least two subsequent health care encounters for asthma during the first six months after the first asthma diagnosis, and had at least 90 days of follow-up were included. The primary outcome was direct health care costs of inpatient and outpatient care. We compared outcomes between groups on the basis of a proxy of severity (mild/moderate severe asthma vs. high severe asthma) and type of health insurance using a multivariable generalized linear model. Covariates such as Patients' demographic characteristics, comorbidities, and concurrent medications were included in the model.
RESULTS: Among 1982 patients included, the average age was 40.3 ± 24.0 years, with 60.7% being males. A total of 1936 patients had mild/moderate severe asthma, whereas 46 patients had high severe asthma. There were 1293 patients under the Universal Coverage Scheme, 264 patients under Social Security Insurance, and 626 patients under the Civil Servant Medical Benefit Scheme (CSMBS). The average annual cost per patient was $598 ± $871. In adjusted analyses, the health care cost of patients with high severe asthma was $71 higher than that of patients with mild/moderate severe asthma (95% confidence interval $-131 to $274). The cost of patients under the CSMBS was $110 (95% confidence interval $29-$191) higher than that of patients under Universal Coverage Scheme.
CONCLUSIONS: Health care costs of patients with asthma were substantial and were higher in patients with high severe asthma and patients under the CSMBS.
Prolonged use of oral corticosteroids is a risk factor for osteoporosis. However, the effect of inhaled corticosteroids (ICS) on bone mineral density (BMD) of asthmatic patients remains controversial.
Conference abstract:
Objectives: To evaluate physician’s knowledge and adherence to asthma guideline adherence (GINA 2011) at emergency department of Hospital Pulau Pinang, Malaysia and to calculate cost of adhered and non-adhered prescriptions
Methods: A cross-sectional survey was conducted to evaluate knowledge of GINA, 2011 asthma guideline at emergency department of Hospital Pulau Pinang, Malaysia. A total of 810 patient prescriptions of 27 doctors (30 prescriptions per doctor) were viewed to asses doctor’s guideline adherence. Patients’ prescriptions were categorised in terms of asthma severity as mild, moderate and severe. Prescriptions were labelled as adhered or non-adhered in terms of doctor treatment according to patient asthma severity as recommended by CPG (GINA 2011). Cost of adhered and non-adhered was calculated according to asthma severity.
Results: Twenty two (81.5%) doctor’s had adequate GINA, 2011 asthma guideline knowledge (Mean 16.7, SD ± 1.5). Six hundred and twenty eight (77.5%) patients received guideline (GINA 2011) adhered pharmacotherapy. Six hundred and seventy eight (83.7%) patients asthma were classified as mild asthma, 128 (15.8%) patients were classified as moderate asthma and 4 (0.5%) patients were classified as severe asthma. Pearson correlation indicated no statistical significant association between asthma guideline adherence and asthma guideline knowledge score (p=0.27). Univariate analysis indicate that patients with age group 25-35 years and with hypertension as co-morbidity received significantly better pharmacotherapy (p=0.04, p=0.03 respectively). Total cost of 628 adhered prescriptions was RM 5792.87 whereas cost of 182 non-adhered prescriptions was RM 1759.09. Cost of single mild asthma adhered prescription (RM 9.18) was less as compared to non adhered mild asthma prescription (RM 10.39).
Conclusions: Emergency doctor’s had adequate GINA, 2011 asthma guideline knowledge. Majority of patients received GINA, 2011 asthma guideline adhered pharmacotherapy. Cost effective medication can significantly reduce socioeconomic burden related to asthma.
Health forecasting can improve health service provision and individual patient outcomes. Environmental factors are known to impact chronic respiratory conditions such as asthma, but little is known about the extent to which these factors can be used for forecasting. Using weather, air quality and hospital asthma admissions, in London (2005-2006), two related negative binomial models were developed and compared with a naive seasonal model. In the first approach, predictive forecasting models were fitted with 7-day averages of each potential predictor, and then a subsequent multivariable model is constructed. In the second strategy, an exhaustive search of the best fitting models between possible combinations of lags (0-14 days) of all the environmental effects on asthma admission was conducted. Three models were considered: a base model (seasonal effects), contrasted with a 7-day average model and a selected lags model (weather and air quality effects). Season is the best predictor of asthma admissions. The 7-day average and seasonal models were trivial to implement. The selected lags model was computationally intensive, but of no real value over much more easily implemented models. Seasonal factors can predict daily hospital asthma admissions in London, and there is a little evidence that additional weather and air quality information would add to forecast accuracy.
Human bocavirus (HBoV) is a newly discovered parvovirus associated with respiratory disease in children. There are many reports worldwide on the endemicity of this virus. Since it is relatively new, detection in clinical laboratories is not routinely performed. We describe the first detection of HBoV in Malaysia in a 13-month-old boy with pneumonia and underlying asthma. The infective agent was confirmed by molecular methods.
Jenny, a nonsmoker, 54 years of age, presents with 3 years of dry cough, progressive breathlessness and reducing exercise tolerance. Two years ago she was diagnosed with asthma and treated with inhaled bronchodilators (which have been marginally effective). Jenny has worked in a tile factory for 22 years; 15 years in the grinding department, transferring to the chipping department 7 years ago. On examination she is tachypnoeic with a prolonged expiratory phase. There are bilateral rhonchi and a few fine crepitations at the left infrascapular region. Jenny's full blood count and electrocardiogram are normal. Arterial blood gas show mild hypoxia with respiratory alkalosis. Spirometry demonstrates mixed moderate obstructive and restrictive impairment. The diffusion capacity for carbon monoxide is reduced. Mantoux is negative and erythrocyte sedimentation rate is 10 mm/hour. A chest X-ray is taken.