There appears to be a high comorbidity of anxiety disorders in patients with asthma. The prevalence and longitudinal impact of anxiety comorbidity needs to be examined in a large population-based sample of children, adolescents, and adults with asthma. If a high prevalence of comorbid anxiety disorder is documented and if this comorbidity adversely affects the self-efficacy and self-care, symptom burden, and functioning in persons with asthma, then it will be important to develop treatment trials.
Background and Purpose-Recently, the Mobile Stroke Unit (MSU) concept was introduced in Germany demonstrating prehospital treatment of more patients within the first hour of symptom onset. However, the details and complexities of establishing such a program in the United States are unknown. We describe the steps involved in setting up the first MSU in the United States. Methods-Implementation included establishing leadership, fund-raising, purchase and build-out, knitting a collaborative consortium of community stakeholders, writing protocols to ensure accountability, radiation safety, purchasing supplies, licensing, insurance, establishing a base station, developing a communication plan with city Emergency Medical Services, Emergency Medical Service training, staffing, and designing a research protocol. Results-The MSU was introduced after ≈1 year of preparation. Major obstacles to establishing the MSU were primarily obtaining funding, licensure, documenting radiation safety protocols, and establishing a smooth communication system with Emergency Medical Services. During an 8 week run-in phase, ≈2 patients were treated with recombinant tissue-type plasminogen activator per week, one-third within 60 minutes of symptom onset, with no complications. A randomized study to determine clinical outcomes, telemedicine reliability and accuracy, and cost effectiveness was formulated and has begun. Conclusion-The first MSU in the United States has been introduced in Houston, TX. The steps needed to accomplish this are described.
Objective: This article reviewed the child and adult medical literature on the prevalence of comorbid anxiety disorders in patients with asthma. Theoretical ideas regarding the relatively high comorbidity rates are presented along with a model describing putative interactions between anxiety disorders and asthma. Method: A search of the literature from the last 2 decades using MEDLINE by pairing the word, "asthma," with the following words: "anxiety," "depression," "panic," and "psychological disorders." We located additional research by screening the bibliographies of articles retrieved in the MEDLINE search. Results: Both adult and child/adolescent populations with asthma appear to have a high prevalence of anxiety disorders. In child/adolescent populations with asthma, up to one third may meet criteria for comorbid anxiety disorders. In adult populations with asthma, the estimated rate of panic disorder ranges from 6.5% to 24%. However, most studies are limited by small samples, nonrepresentative populations, self-reported asthma status, and lack of controlling for important potential confounders such as smoking and asthma medications. There are also limited data on the impact of anxiety comorbidity in patients with asthma on symptom burden, self-care regimens (such as monitoring peak expiratory flow, taking medication, and quitting smoking), functional status, and medical costs.Conclusions: There appears to be a high comorbidity of anxiety disorders in patients with asthma. The prevalence and longitudinal impact of anxiety comorbidity needs to be examined in a large population-based sample of children, adolescents, and adults with asthma. If a high prevalence of comorbid anxiety disorder is documented and if this comorbidity adversely affects the self-efficacy and self-care, symptom burden, and functioning in persons with asthma, then it will be important to develop treatment trials.
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