首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 678 毫秒
1.
Objectives. To investigate bacterial contamination in spacer devices used by asthmatic children and the device maintenance procedures practiced by parents. Methods. Spacer devices used by 62 asthmatic children were examined. Swabs taken from the inner surface of the reservoirs and face masks were cultured. Parents were interviewed regarding their spacer cleaning and disinfection routines. Results. Bacterial contamination was noted in 22 reservoirs (35.5%) and 16 masks (25.8%). Pseudomonas aeruginosa was isolated from 21.0% of the reservoirs and 14.5% of the face masks, Klebsiella pneumoniae from 6.5% and 4.8%, and Staphylococcus aureus from 9.7% and 8.1%, respectively. Only 34 parents (54.8%) reported that they received cleaning and maintenance instructions from the medical staff at initiation of spacer use by their child, and only 38 (61.8%) cleaned the device after each use. Conclusion. Bacterial contamination is common in spacer devices. This study demonstrates that contamination rates are significantly lower when parents clean and actually dry (preferably with an air blower) spacer devices after each use. Spacer device maintenance should be emphasized in education programs for managing asthma.  相似文献   

2.
Drug delivery in asthma: A comparison of spacers with a jet nebuliser   总被引:1,自引:0,他引:1  
Background: Although spacer devices are frequently used for aerosol therapy in asthma, the commonly used spacers have undergone little controlled evaluation, and their relation to nebuliser therapy is unclear. Aims: The aims of this study were to compare three delivery methods (Breath-A-Tech spacer, Volumatic spacer and jet nebuliser) for the administration of salbutamol to reverse acute histamine induced airway narrowing in asthma (Study 1); and to assess asthma control during two weeks use of inhaled therapy via Volumatic or Breath-A-Tech spacer (Study 2). Methods: A randomised double-blind cross-over comparison was conducted. In Study 1, 27 adults with stable asthma who were currently using pressurised metered dose inhaler therapy attended for three study days. On each study day subjects inhaled doubling doses of histamine and were randomised to receive: (a) salbutamol 200 μg via Breath-A-Tech spacer and placebo 200 μg via Volumatic spacer; (b) placebo two puffs via Breath-A-Tech spacer and salbutamol 200 μg via Volumatic spacer; or (c) salbutamol 1 mg in 2 mL saline via jet nebuliser. FEV and FEF 25–75% were measured at two minute intervals for 20 minutes. In Study 2, subjects were randomised to use regular asthma medication by Volumatic or Breath-A-Tech spacers and recorded symptoms and peak expiratory flow (PEF) in a daily diary. Results: Lung function improved from a baseline FEV, of 51% predicted to 72% after salbutamol inhalation from each of the delivery systems. The spacers and nebulisers produced the same maximum improvement in FEVi, however, lung function improved more rapidly when salbutamol was delivered by spacer. There was no difference in asthma control comparing inhaler use via Breath-A-Tech with Volumatic spacer over two weeks use. Subject preference favoured the Breath-A-Tech spacer (72%vs 4%). Conclusions: The Volumatic and Breath-A-Tech spacer devices are effective delivery systems in asthma and may offer a more rapid response than jet nebulisation at a lower cost.  相似文献   

3.
4.
Objective: To address the problems about correct use of inhaler devices, adherence to inhaler corticosteroid treatment and the effects of these problems on the control of asthma. Methods: Children with asthma were evaluated for the correct use of inhaler devices and adherence to therapy using a questionnaire. Effect of these on control of asthma was defined. Results: A hundred and seventy-one patients and/or their families were interviewed. The mean age was 8.29?±?4.65 years (1–19) and 62.6% were male. Metered dose inhaler (MDI) with spacer was used by 119 (69.5%) patients and 52 (30.5%) used dry powder inhalers (DPIs). The devices were used correctly by 68.1% of patients using MDI and 34.6% of patients using DPI (p?<?0.001). The most common improper step was “breathe in from the spacer 5–6 times or 10?s” for MDI (24.4%) and “exhale to residual volume” for DPI (51.9%). Frequency of correct use was higher in patients trained 3 times (p?<?0.001). Asthma was controlled more frequently among correct users (p?<?0.001). Partial or poor adherence was showed 22.8% of patients. Patients with mothers who had lower educational status had higher frequency of incorrect use of inhaler device (p?=?0.007). Conclusion: It was found that asthma control was better among correct users. Repetitive training about using devices may contribute improving inhaler technique. Especially children whose mothers had low education level and patients using DPI should be evaluated more carefully.  相似文献   

5.
BackgroundWe compared the bronchodilative effects of salbutamol delivered via 3 different mesh nebulizers, Aeroneb-go®(AE), Omron-NE-U22®(OM) and Pari-eMotion®(PA).MethodsWe enrolled 36 children with asthma who visited the Kurosaka Pediatrics and Allergy Clinic, randomly assigned to 3 groups for treatment with AE, OM or PA. The dose of salbutamol in the solution was 0.15 mg x body weight (kg) (minimum 2.5 mg, maximum 5 mg). FEVi, PEFR and V50 were measured in these patients before treatment, and at 15 and 30 minutes after salbutamol inhalation using one of the 3 mesh nebulizers.ResultsAll groups showed a significant improvement of FEVi, PEFR and V50 at 30 minutes after salbutamol inhalation. The AE group did not show a significant improvement in PEFR at 15 minutes after inhalation, whereas a significant improvement in FEVi and V50 was evident at the same time point. The OM group showed no significant improvement in V50 at 15 minutes after inhalation, whereas this group clearly showed a significant improvement in PEFR and FEVi at the same time point.ConclusionsOverall, all 3 mesh nebulizers were useful devices in treating bronchial asthma, although some differences in lung function improvement were evident. The limitation of this study is that subjects did not include patients with severe asthma attacks.  相似文献   

6.
Objective: To compare administration of bronchodilators by nebulizers with delivery by metered dose inhalers (MDIs) with spacers and to evaluate the clinical effect of the treatment of acute asthma in preschool children. Methods: A prospective randomized clinical trial in a pediatric emergency department (PED). Preschool children who were admitted for virus induced wheezing or acute asthma exacerbation were randomly allocated to receive bronchodilator treatment by nebulizer or by metered dose inhaler. The accompanying parents completed a questionnaire. Results: The length of stay in the PED and the hospitalization rate were similar and no difference was seen in the parents' view of ease of use and device acceptance. Baseline data were similar for both groups apart from the family history of asthma and atopic disease that was greater in the nebulizer group. No significant differences were seen in heart rate, respiratory rate and oxygen saturation at baseline and after the treatment. According to the parents 40% of the participants had asthma diagnosis though up to 66% had some kind of asthma medication. Conclusions: Our data suggests that MDIs with spacers are at least as effective as nebulizers in the delivery of beta agonists to treat preschool children with virus induced wheezing or acute exacerbations of asthma in the PED. Parents may underestimate the gravity of their children's asthma. It is mandatory to provide adequate information to the staff and parents in order to treat pediatric acute asthma successfully.  相似文献   

7.
Background. The prevalence of written “action plans” (APs) among emergency department (ED) patients with acute asthma is unknown. Objective. To determine the prevalence of APs among ED patients, to describe the demographic and clinical profile of patients with and without APs, and to examine the appropriateness of response to an asthma exacerbation scenario. Methods. Using a standard protocol, 49 North American EDs performed a prospective cohort study involving interviews of 1,756 patients, ages 2–54, with acute asthma. Among children only, a random sample was contacted two years after the index ED visit to assess current AP status and parents' self-management knowledge. Results. The overall prevalence of APs was 32% (95% confidence interval [CI], 30%–34%), and was higher among children than adults (34% vs. 26%, respectively; p = 0.001). Patients with APs had worse measures of chronic asthma severity (p < 0.05) and were more likely to be hospitalized (multivariate odds ratio, 1.5; 95%CI, 1.1–2.1). After 2 years, most children with an AP at the index ED visit still had one but only 20% of those without an AP had obtained one; moreover, many of the APs appeared inadequate. Parents of children with a current AP performed slightly better on the asthma scenario, but both groups overestimated their asthma knowledge. Conclusion. The prevalence of APs among ED patients with acute asthma is unacceptably low, and many of these APs appear inadequate. “Confounding by severity” will complicate any non-randomized analysis of the potential impact of APs on asthma outcomes in ED patients.  相似文献   

8.
《The Journal of asthma》2013,50(4):367-373
Nebulizer use has been linked to worse asthma outcomes, but the precise reason(s) for this relationship is not known. We assessed the frequency of nebulized β2-agonist use in high-risk inner-city adults with asthma and compared asthma self-management practices according to nebulizer use in this population. This was a cross-sectional study conducted over 6 weeks from 07 to 08 2000. A convenience sample (N = 50) was recruited from an inner-city emergency department (ED). Adults (age ≥18 years) were eligible if they had a physician diagnosis of acute asthma exacerbation. Data regarding asthma symptoms, acute care utilization, use of nebulized β2-agonist for symptom relief, and indicators of asthma self-management (physician for asthma care, use of controller medications, current cigarette smoking, and substance use) were collected by an interviewer-administered survey. Nebulized β2-agonist use was reported by 54.0% of patients during the 30 days before their ED visit. Nebulizer users reported more severe asthma symptoms (96.3% vs. 73.9% with moderate or severe persistent asthma, p = 0.02) than nonusers. Nebulizer users were more likely to have a physician for asthma care (85.2% vs. 56.5%, p = 0.02), have more frequent care from their physicians in the past 12 months (e.g., >3 visits: 59.3% vs. 30.4%, p = 0.02), and notify their physician during their asthma exacerbation (39.1% vs. 7.7%, p = 0.04). Compared with nonusers, nebulizer users reported better care across other indicators of care, though differences between groups were not significant. After accounting for symptom severity, results were largely unchanged. If these findings are confirmed in other studies with larger numbers of patients, we conclude that the relationship between nebulizer use and higher asthma morbidity largely represents preferential use of nebulizers by patients with more symptomatic disease.  相似文献   

9.
Background: The expiration of patents of brand inhalation medications and the ongoing pressure on healthcare budgets resulted in a growing market for generics. Aim: To study the use of brand and generic inhalation medication and the frequency of switching between brand and generic and between devices. In addition, we investigated whether switching affected adherence. Methods: From dispensing data from the Dutch PHARMO Database Network a cohort aged ≥ 5 years, using ≥ 1 year of inhalation medication between 2003 and 2012 was selected. Switching was defined as changing from brand to generic or vice versa. In addition, we studied change in aerosol delivery device type (e.g., DPI, pMDI, and nebulizers). Adherence was calculated using the medication possession ratio (MPR). Results: The total cohort comprised 70,053 patients with 1,604,488 dispensations. Per calendar year, 5% switched between brand and generic inhalation medication and 5% switched between devices. Median MPRs over the first 12 months ranged between 33 and 55%. Median MPR over the total period was lower after switch from brand to generic and vice versa for formoterol (44.5 vs. 42.1 and 63.5 vs. 53.8) and beclomethasone (93.8 vs. 59.8 and 81.3 vs. 55.9). Conclusion: Per year, switching between brand and generic inhalation medication was limited to 5% of the patients, switching between device types was observed in 5% as well. Adherence to both generic and brand inhalation medication was low. Effect of switching on adherence was contradictory; depending on time period, medication and type, and direction of switching. Further research on reasons for switching and potential impact on clinical outcomes is warranted.  相似文献   

10.
Background and objective. In an effort to improve the delivery of drugs to the lungs, various spacer devices have been developed to attach to metered-dose inhalers (MDIs). The aim of the study was to determine whether use of a small volume tube spacer with MDI is associated with better bronchodilatation. Methods. We assessed bronchodilatation by measuring forced expiratory volume in 1 second (FEV1) before and after inhalation of fenoterol 0.4 mg (2 puffs) delivered by using a MDI in four different ways: with or without a spacer alone or with a mouth rinse of 100 mL of water immediately after inhalation with or without a spacer. Results. A total of 303 patients who had a positive bronchodilator test were studied. There was no significant difference in the ΔFEV1 (mL or %) with or without a spacer (MDI + spacer vs. MDI, mean ± SD, 365.1 ± 146.5 mL vs. 356.3 ± 131.1 mL, p = 0.696; and 21.4 ± 9.4% vs. 21.4 ± 9.5%, p = 0.968, respectively). When patients rinsed their mouth after inhalation, bronchodilatation was significantly less in those using an MDI alone compared with MDI + spacer (302.6 ± 116.5 mL vs. 367.6 ± 128.3 mL, p = 0.002; and 18.0% ± 7.9% vs. 21.7% ± 9.5%, p = 0.013, respectively). Conclusions. When patients correctly use an MDI, addition of a spacer does not significantly improve bronchodilatation. However, if the mouth is rinsed after inhalation, a spacer does yield better bronchodilatation. Our results suggest that systemic effects from bronchodilator inhalation may not be negligible.  相似文献   

11.
Objective: To describe and compare the treatment of acute asthma exacerbations in children given in the emergency department (ED) and admitted to acute care floor in the hospital or intensive care unit (ICU). Methods: A retrospective chart review of visits for acute exacerbation of asthma treated at Phoenix Children's Hospital between January 1, 2014 and December 31, 2016. Results: A total of 287 asthma exacerbation cases were identified including 106 (37%) ED visits, 134 (47%) hospital floor and 47 (16%) ICU admissions. A history of a previous ED visit (ED 88%, Floor 60% and ICU 68%; p < 0.0001) and prior pulmonology inpatient consultation (ED 30%, Floor 19% and ICU 15%; p = 0.05) varied significantly. Pulmonology inpatient consultations were performed more frequently in the ICU than on the hospital floor (54% versus 8%; p < 0.0001). Although overall 145 (51%) of the cases were already on inhaled corticosteroids (ICS) at the time of visit with no differences across locations, ICS initiation/step-up was greater in the ICU (72%) than on the hospital floor (54%) and ED (2%) (p < 0.0001). A recommendation given to the family for follow-up with pulmonology was more frequent for patients who had been admitted to the ICU (68%) as compared to those only admitted to the floor (31%) or ED (4%) (p < 0.0001). Readmission rates were similar for patients previously admitted to the hospital (Floor 42%; ICU 40%), but significantly higher for previous ED visits (77%) (p < 0.0001). Conclusions: Physicians in the ED have an opportunity to provide preventative care in the acute care setting and should be encouraged to initiate treatment with ICS. Consideration should be given to develop a program or clinical pathway focused on long-term asthma management and maintenance to reduce readmissions and long hospital stays.  相似文献   

12.
Objective: In a 1999 survey, community pharmacists from the Alsace region of France had a reasonably good knowledge of asthma treatment and prevention, but their skill in the use of asthma inhalation devices left room for improvement. Since then, health authorities have encouraged the involvement of community pharmacists in patient care and education in order to improve asthma control. The aim of this study was to assess the change in the knowledge of asthma management and inhaler technique skills of community pharmacists in the same geographic area after a 10-year interval. Methods: In 2009, 86 randomly selected community pharmacists from the Alsace region answered a standardized questionnaire about their theoretical knowledge of and practical attitude toward asthma management and inhaled delivery systems, following which their skills in the use of four inhalation devices (pressurized metered-dose inhaler (pMDI) with/without a spacer, breath-actuated pMDI and dry powder inhaler (DPI)) were evaluated. Results: Very few pharmacists were required to manage an acute asthma exacerbation at the pharmacy, but all responded well by administering a short-acting inhaled β2-agonist. Theoretical knowledge of asthma management (criteria of severity of asthma exacerbation, guidelines and drugs triggering asthma exacerbations) was still average. Compared with 1999, they were twice as confident in demonstrating inhaler use, and their skills in using the pMDI, breath-actuated pMDI and DPI had improved significantly (p?Conclusions: Since 1999, pharmacists’ skill in the use of inhalers has improved, but theoretical knowledge of asthma management is still average, pointing to the importance of continuing pharmaceutical education.  相似文献   

13.
14.
Aerosol delivered through metered-dose inhalers offers an efficacious way to deliver aerosols to asthmatics. Unfortunately, children and aged subjects are unable to coordinate satisfactory their use with inhalation, a problem overcome by using spacer devices.Purpose. – To compare, in vitro and in vivo, a new Tunisian spacer device: Airbox® (Omezine Laboratory) with Volumatic® (Glaxo Wellcome).Methods. – The experimental model includes an artificial ventilator, which simulates a seven-year-old child’s respiration, connected to spacer devices. A millipore filter was placed in serie at the exit of the spacer. The filter was weighed blind by a high precision balance (± 0.01 mg) before and after the spray administration. Thirty-six children aged from 6 to 14 years were enrolled in a randomised, double-blind, crossover, in vivo study. All children have severe persistent asthma with forced expiratory volume in a one-second (FEV1) baseline between 50 and 60% of reference value. The reversibility of airway obstruction was assessed by the FEV1 and the change after inhalation of 200 μg of salbutamol delivered via each spacer devices. A serie of 30 experiments was made with different doses of salbutamol.Results. – The amount of aerosol retained by the filter was statically similar for both spacer devices. Reversibility percentages measured by the two spacer devices was in the same confidence interval.Conclusions. – The salbutamol-Airbox® association was as efficient as the salbutamol-Volumatic® association in vitro and in vivo.  相似文献   

15.
Objective: Effective management of asthma requires the development of a partnership between the patient and his or her health care professionals. In a number of countries, including Turkey, pharmacy workers are the last link in the asthma therapy chain and usually give information to their patients about the use of these drugs and asthma. As a result, we investigated knowledge of asthma and the use of inhaler devices in pharmacy workers in Istanbul pharmacies. Methods: The study was performed with 266 pharmacists and 261 pharmacist assistants selected from 4221 pharmacies in Istanbul by random sampling, with a 90% confidence interval. Each patient was asked to fill out a questionnaire that measured their knowledge of asthma. They were also asked to demonstrate how to use the inhaler devices. Results: The high number of incorrect answers to the 11th question, that ‘‘the majority of upper respiratory tract infections triggering asthma are viral’’, may be a contributor to the unnecessary use of antibiotics in Turkey (incorrect answers from 41.2% of pharmacists and 34.5% of pharmacist assistants). Scores for inhalation device techniques for the pharmacists were as follows: metered-dose inhaler (MDI), 4.9?±?3.9; discus, 4.4?±?3.7; aerolizer, 4?±?3.1; and turbuhaler, 3.8?±?2.9. Conclusions: Istanbul pharmacy workers have limited knowledge about asthma and inhaler devices and need further education, which may contribute to improved asthma control in Turkey.  相似文献   

16.
Objective: Asthma exacerbations frequently result in emergency department (ED) visits. While sex differences have been identified in some asthma studies, there is a paucity of literature on sex differences in the ED setting, especially population-based ones. This study examines sex differences in important outcomes of patients discharged from EDs for acute asthma in Alberta, Canada. Methods: Alberta residents aged from 2 to 55 years discharged from EDs with a primary diagnosis of asthma during 1999–2011 were identified from administrative databases from a single-payer health care system for the entire geographic region of Alberta. Multivariable Cox regression models analyzed time to first follow-up physician or specialist visit, and logistic regression models analyzed the binary outcome of ED return within 30 days for asthma. Results: There were 115,853 discharged patients analyzed (40.4% and 59.1% female in pediatric and adult groups, respectively). Approximately 26% of patients revisited the ED during 1999–2011 and 5.1% did so within 30 days. Women had higher odds of a 30-day ED return after ED discharge than men (unadjusted odds ratio [uOR] = 1.26; 95% confidence interval [CI] 1.17–1.36). Time to first non-ED physician follow-up was shorter for girls (unadjusted hazard ratio [uHR] = 1.05; 95%CI 1.03–1.07) and women (uHR = 1.62; 95%CI 1.59–1.64) than for boys and men, respectively. Significant interactions between sex and age, socio-economic status, area of residence, and comorbidities were identified and changed the effect of sex on outcomes. Conclusions: In conclusion, women return to EDs within 30 days of discharge for acute asthma more often than men. Time to first non-ED physician follow-up for children and adults differed by sex. Multiple factors likely contribute to these differences; however, identifying these differences is critical to understand the influence of sex on health behaviors and outcomes.  相似文献   

17.
18.
Controversy exists concerning the degree of microbial contamination associated with the us of rigid lumened medical devices, the efficacy of standard cleaning techniques used to remove pathogenic microorganisms from lumen channels, and whether patients are placed at risk of cross infection because of microbial contamination. In this study the level and types of microorganisms found on rigid lumened medical devices before and after cleaning in a hospital environment were investigated. The bioburden level after clinical use was found to be relatively low, ranging from 101 to 104 colony forming units (CFU) per device. After the instruments were cleaned, none of the devices studied contained bioburden levels greater than 104 CFU and 83% had bioburden levels less than or equal to 102 CFU. The bioburden present before cleaning was comprised of organisms derived from the handling of the device, from the hospital environment, and from the patient. The bioburden present after cleaning was comprised of organisms typically derived from the handling of the device and from the hospital environment. The level of bioburden per device was also related to the anatomic site where the device was used, with lower numbers of organisms found on devices exposed to sterile body sites and the respiratory tract.  相似文献   

19.
BACKGROUND: The proliferation of inhaler devices has resulted in a confusing number of choices for clinicians who are selecting a delivery device for aerosol therapy. There are advantages and disadvantages associated with each device category. Evidence-based guidelines for the selection of the appropriate aerosol delivery device in specific clinical settings are needed. AIM: (1) To compare the efficacy and adverse effects of treatment using nebulizers vs pressurized metered-dose inhalers (MDIs) with or without a spacer/holding chamber vs dry powder inhalers (DPIs) as delivery systems for beta-agonists, anticholinergic agents, and corticosteroids for several commonly encountered clinical settings and patient populations, and (2) to provide recommendations to clinicians to aid them in selecting a particular aerosol delivery device for their patients. METHODS: A systematic review of pertinent randomized, controlled clinical trials (RCTs) was undertaken using MEDLINE, EmBase, and the Cochrane Library databases. A broad search strategy was chosen, combining terms related to aerosol devices or drugs with the diseases of interest in various patient groups and clinical settings. Only RCTs in which the same drug was administered with different devices were included. RCTs (394 trials) assessing inhaled corticosteroid, beta2-agonist, and anticholinergic agents delivered by an MDI, an MDI with a spacer/holding chamber, a nebulizer, or a DPI were identified for the years 1982 to 2001. A total of 254 outcomes were tabulated. Of the 131 studies that met the eligibility criteria, only 59 (primarily those that tested beta2-agonists) proved to have useable data. RESULTS: None of the pooled metaanalyses showed a significant difference between devices in any efficacy outcome in any patient group for each of the clinical settings that was investigated. The adverse effects that were reported were minimal and were related to the increased drug dose that was delivered. Each of the delivery devices provided similar outcomes in patients using the correct technique for inhalation. CONCLUSIONS: Devices used for the delivery of bronchodilators and steroids can be equally efficacious. When selecting an aerosol delivery device for patients with asthma and COPD, the following should be considered: device/drug availability; clinical setting; patient age and the ability to use the selected device correctly; device use with multiple medications; cost and reimbursement; drug administration time; convenience in both outpatient and inpatient settings; and physician and patient preference.  相似文献   

20.
Background and Objectives: Asthma exacerbations frequently trigger emergency department (ED) visits. Guidelines recommend timely follow-up after an ED visit for asthma, however, other studies have questioned the quality of follow-up care and their effect on subsequent ED utilization. We evaluated follow-up care on asthma outcomes in pediatric asthmatics enrolled in the Military Health System (MHS) after an ED visit for asthma. Methods: This retrospective study utilized MHS data to evaluate 2–17-year-old persistent asthmatics with an ED visit for asthma between 2010–2012. Demographics, medication dispensing, and subsequent asthma related ED and hospital utilization were compared between those with or without a 28-day follow-up appointment. Results: 10,460 of 88,837 persistent asthmatics met inclusion criteria for an asthma ED visit. 4,964 (47.5%) had ≥ 1 follow-up visit. In the 29–365 days after their ED visit, 21.1% of the follow-up cohort required an ED re-visit compared to 24.0% of the patients without follow-up. Follow-up care was associated with a reduction in ED re-visits (adjusted hazard ratio 0.86; 95% confidence interval 0.79, 0.93). Controller medications were dispensed to 76.0% of the follow-up cohort within 90 days of their ED visit compared to 49.7% in the group without follow-up. Conclusions: Despite universal access to healthcare, less than half of pediatric MHS asthma patients had follow-up within 28 days of an ED visit. Those with follow-up were more likely to fill a controller medication within 90 days post-ED visit, and less likely to have an asthma ED re-visit in the subsequent year.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号