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Biomedical subjects

Allan T Luskin

Publications and source records attributed to Allan T Luskin.

9 recordsLinked to original sources
PubMed2005

What the asthma end points we know and love do and do not tell us.

Asthma is a disorder characterized by common features of reversible airflow obstruction and bronchial hyperreactivity in the setting of airway mucosal and submucosal inflammation. However, the clinical manifestations are syndromic and not unimodal. There is marked variability in severity of symptoms, natural history, risks of adverse outcomes, pathologic characteristics, and response to therapy. Understanding the relationship between these factors has been complicated by the variability of outcomes and the lack of correlation between them. There is a striking absence of correlation among the pathologic, physiologic, and clinical manifestations of the asthmatic disorders. Lung function tends to correlate poorly with clinical outcomes, and there is only modest correlation between clinical outcomes. Response to therapy is variable both externally (between patients) and internally, depending on which outcome is evaluated. A more complete understanding of the variability of disease and the genetic and environmental causes of the variability likely will change how we approach asthma and its therapy.

Asthma↗
PubMed2005

Symptom control and improved functioning: the effect of omalizumab on asthma-related quality of life (ARQL).

This investigation evaluated variability in asthma-related quality-of-life (ARQL) outcomes among patients randomized to omalizumab or placebo. Pooled data on the Asthma Quality of Life Questionnaire (AQLQ) from two trials were used (n = 948). Variability in ARQL outcomes was determined by categorizing AQLQ score changes according to minimal clinically important difference (MCID: 0.5 points) and large clinically important difference (LCID: 1.5 points) score changes. A greater proportion of patients achieved improvement in every domain of AQLQ scores during all periods with omalizumab compared with placebo. Omalizumab-treated patients showed greater clinically important improvement in ARQL compared with patients receiving placebo.

Adolescent↗
PubMed2004

The utility of the Health Plan Employer Data and Information Set (HEDIS) asthma measure to predict asthma-related outcomes.

BACKGROUND: The Health Plan Employer Data and Information Set (HEDIS) measures are used extensively to measure quality of care. OBJECTIVE: To evaluate selected aspects of the HEDIS measure of appropriate use of asthma medications. METHODS: Claims data were analyzed for commercial health plan members who met HEDIS criteria for persistent asthma in 1999. The use of asthma medications was evaluated in the subsequent year with stratification by controller medication and a measure of adherence (days' supply). Multivariate logistic regressions were used to evaluate the association among long-term controller therapy for persistent asthma, adherence to therapy, and asthma-related hospitalizations or emergency department (ED) visits, controlling for demographic, preindex utilization, and other confounding characteristics. RESULTS: Of the 49,637 persistent asthma patients, approximately 35.7% were using 1 class of long-term controller medications, 18.4% were using more than 1 class, and 45.9% were not using such medication. More than 25% of the persistent asthma patients did not use any asthma medication in the subsequent year. Patients with low adherence to controller medication had a significantly higher risk (odds ratio [OR], 1.72; 95% confidence interval [CI], 1.42-2.08) of ED visit or hospitalization relative to patients not using any controllers compared with persons with moderate (OR, 0.84; 95% CI, 0.57-1.23) or high (OR, 0.70; 95% CI, 0.34-1.44) adherence. Patients receiving a high days' supply of inhaled corticosteroids had the lowest risk of ED visit or hospitalization (OR, 0.37; 95% CI, 0.05-2.69). CONCLUSIONS: Our findings suggest that refinements to the HEDIS measure method for identifying patients with persistent asthma may be needed.

Adult↗
PubMed2004

Changing physician prescribing patterns through problem-based learning: an interactive, teleconference case-based education program and review of problem-based learning.

BACKGROUND: Although asthma guidelines have recommended the use of anti-inflammatory controller medications since 1991, studies have consistently shown widespread failure to follow the guidelines. Major barriers include lack of knowledge and the inability to operationalize knowledge. Improved continuing medical education methods should result in more effective learning by physicians and other health care professionals, leading to better adherence to guidelines, resulting in better outcomes. OBJECTIVE: To evaluate the effectiveness of an interactive, case-based, educational intervention, also known as problem-based learning, using a series of interactive, case-based teleconferences. METHODS: A series of interactive, case-based teleconferences was completed with 20 primary care physicians. Each case involved a child aged 16 months to 12 years with asthma. A 12-month analysis of physician prescribing patterns was conducted. RESULTS: Program acceptance by the 20 physicians was uniformly positive. Significant improvement was noted, with an overall increase in controller use. Review of prescription data showed an increase in inhaled corticosteroid use from an average of 2.54 to 7.76 refills per month for the 6 months after the intervention (P < .001). CONCLUSIONS: After participating in a unique educational intervention-problem-based learning using interactive, case-based teleconferences-the prescribing patterns of physicians were altered significantly toward better adherence to asthma guidelines, as demonstrated by an increased use of anti-inflammatory controller medications (inhaled corticosteroids and leukotriene antagonists).

Anti-Asthmatic Agents↗
PubMed2004

Clinical and economic effects of suboptimally controlled asthma.

Patients with difficult-to-treat or suboptimally controlled asthma consume a disproportionate share of asthma health care resources. Treatment strategies that minimize exacerbations may decrease the need for unscheduled medical services, reduce emergency department visits, and minimize asthma-related hospitalizations. Clinical trial evidence indicates the immunoglobulin-E blocker omalizumab reduces the frequency of asthma exacerbations, minimizes symptoms, and improves lung function in patients with moderate-to-severe asthma that is inadequately controlled by inhaled corticosteroid therapy. Treatment with omalizumab of patients with suboptimally controlled asthma may reduce the clinical and economic burden of asthma.

Adolescent↗
PubMed2003

"Real-world" effectiveness of daily controller medicine in children with mild persistent asthma.

BACKGROUND: Unmeasured confounders and selection bias can significantly influence the results of retrospective observational analyses of asthma therapy. OBJECTIVE: To evaluate the efficacy of oral montelukast and inhaled fluticasone propionate in a randomized, prospective 12-month "real-world" observational analysis of children with mild persistent asthma. METHODS: Children (n = 104) between 6 and 15 years of age with mild asthma as determined by forced expiratory volume in 1 second, symptoms, and evaluation by an experienced pediatric allergist or pulmonologist, who were not currently receiving controller therapy, were randomly assigned to fluticasone or montelukast on an alternating basis. Subjects were asked to complete a questionnaire at 6 and 12 months; otherwise, medical care was identical to that of similar managed care patients. Outcome parameters were evaluated after 12 months by claims database analysis. An acute asthma attack requiring emergent care was the primary outcome parameter. Measures of adherence, symptoms, and asthma control, as measured by the pediatric Asthma Therapy Assessment Questionnaire, were secondary outcome parameters. RESULTS: Demographics, spirometry, symptoms at enrollment, emergent care visits, asthma hospitalizations, routine office visits, and symptoms at study completion were not significantly different between study groups. Adherence, as evaluated by the number of controller fills, was significantly (P = 0.0003) better for montelukast (7.65 +/- 3.01) than fluticasone (5.46 +/- 3.01). Similar numbers of subjects in each study group required beta-agonists and oral prednisone. CONCLUSIONS: These results suggest that oral montelukast and inhaled fluticasone have similar real-world efficacies in the treatment of children with mild asthma, possibly as a result of the significantly better adherence with oral montelukast therapy compared with inhaled fluticasone.

Acetates↗
PubMedDate not supplied

The economic burden associated with prior authorizations in an allergist office.

Costs for managed care organizations to process prior authorizations (PAs) for nonformulary medications have been estimated to be dollars 20-25 per request. Costs for physicians to process these requests have not been studied extensively. A data collection tool was developed and used by physicians and nurses to document time spent on processing PAs. Data were collected over 8 weeks and 117 requests were processed. Nurses averaged 5.6 +/- 6.5 calls per day per nurse and spent an average of 17 minutes per call. Physicians averaged 1.9 +/- 1.2 calls per day averaging 5.8 +/- 5.0 minutes per call. During the study period nurses spent >40 hours on 231 calls and physicians spent >8 hours on 154 calls. Based on the hourly rate of the nurses and physicians, the total cost in this specialty practice was dollars 17.77 per PA. Of the 117 PA requests, 98.7% were approved the first time they were processed. There are substantial costs with processing PAs for nonformulary drugs on the physician office side of managed care as well as on the insurance side of the process. Specialty physicians should have a different process for obtaining notformulary medications because almost 100% of their requests are granted.

Allergy and Immunology↗