The therapeutic value of inhaled corticosteroids (ICSs) for COPD is limited. In published RCTs, ICS could be withdrawn in COPD patients without increasing exacerbation risk when bronchodilator... Show moreThe therapeutic value of inhaled corticosteroids (ICSs) for COPD is limited. In published RCTs, ICS could be withdrawn in COPD patients without increasing exacerbation risk when bronchodilator treatment is optimized. Here we report on the feasibility and risks of ICS withdrawal in Dutch general practice for COPD patients without an indication for ICSs. In our pragmatic trial, general practitioners decided autonomously which of their COPD patients on ICS treatment could stop this, how this was done, and whether additional bronchodilator therapy was needed. We recruited 62 COPD patients (58 analysed) who were eligible for ICS withdrawal in 79 practices. In 32 patients (55.2%, 95% CI: 42.5-67.3%) ICS was withdrawn successfully, 19 (32.8%, 95% CI: 22.1-45.6%) restarted ICS treatment within six months, 12 patients (20.7%, 95% CI: 12.3-32.8%) had a moderate exacerbation, and one patient had a severe exacerbation. ICS withdrawal was successful in just over half of the patients with COPD without an indication for ICS. Show less
Khusial, R.J.; Honkoop, P.J.; Meer, V. van der; Snoeck-Stroband, J.B.; Sont, J.K. 2020
AbstractObjective: Several newly developed eHealth applications use online questionnaires to monitor asthma control. The Asthma Control Questionnaire (ACQ) and Asthma Quality of Life Questionnaire ... Show moreAbstractObjective: Several newly developed eHealth applications use online questionnaires to monitor asthma control. The Asthma Control Questionnaire (ACQ) and Asthma Quality of Life Questionnaire (AQLQ) are two such commonly used questionnaires. These questionnaires are validated for use on paper. This study aims to validate them by assessing the agreement between online and paper versions of the ACQ and AQLQ.Methods: Patients (aged 18 years and older) from the Self-Management in Asthma Supported by Hospitals, ICT, Nurses and General Practitioners (SMASHING)-trial and Davos@home study were included in this study. Patients completed both the paper and online Dutch versions of the ACQ and AQLQ in a random order within a 2-week interval. Agreement between the different versions was assessed with paired t-tests, intraclass correlation coefficients and Bland-Altman plots.Results: In total 44 patients were eligible for analysis. The mean difference between the paper and online versions of the ACQ was 0.04 (p=0.40) and for the AQLQ it was 0.08 (p=0.06). The intraclass correlation coefficient scores were 0.94 for the ACQ and 0.95 for the AQLQ.Conclusion: The online versions of the ACQ and AQLQ show high levels of agreement with the paper versions and can therefore be safely used in eHealth applications to respectively monitor asthma control and quality of life. Show less
Khusial, R.J.; Honkoop, P.J.; Meer, V. van der; Snoeck-Stroband, J.B.; Sont, J.K. 2020
Objective: Several newly developed eHealth applications use online questionnaires to monitor asthma control. The Asthma Control Questionnaire (ACQ) and Asthma Quality of Life Questionnaire (AQLQ)... Show moreObjective: Several newly developed eHealth applications use online questionnaires to monitor asthma control. The Asthma Control Questionnaire (ACQ) and Asthma Quality of Life Questionnaire (AQLQ) are two such commonly used questionnaires. These questionnaires are validated for use on paper. This study aims to validate them by assessing the agreement between online and paper versions of the ACQ and AQLQ.Methods: Patients (aged 18 years and older) from the Self-Management in Asthma Supported by Hospitals, ICT, Nurses and General Practitioners (SMASHING)-trial and Davos@home study were included in this study. Patients completed both the paper and online Dutch versions of the ACQ and AQLQ in a random order within a 2-week interval. Agreement between the different versions was assessed with paired t-tests, intraclass correlation coefficients and Bland-Altman plots.Results: In total 44 patients were eligible for analysis. The mean difference between the paper and online versions of the ACQ was 0.04 (p=0.40) and for the AQLQ it was 0.08 (p=0.06). The intraclass correlation coefficient scores were 0.94 for the ACQ and 0.95 for the AQLQ.Conclusion: The online versions of the ACQ and AQLQ show high levels of agreement with the paper versions and can therefore be safely used in eHealth applications to respectively monitor asthma control and quality of life. Show less
Gaalen, J.L. van; Beerthuizen, T.; Meer, V. van der; Reisen, P. van; Redelijkheid, G.W.; Snoeck-Stroband, J.B.; ... ; SMASHING Study Grp 2013
BACKGROUND Long-term asthma management falls short of the goals set by international guidelines. The Internet is proposed as an attractive medium to support guided self-management in asthma.... Show moreBACKGROUND Long-term asthma management falls short of the goals set by international guidelines. The Internet is proposed as an attractive medium to support guided self-management in asthma. Recently, in a multicenter, pragmatic randomized controlled parallel trial with a follow-up period of 1 year, patients were allocated Internet-based self-management (IBSM) support (Internet group [IG]) or usual care (UC) alone. IBSM support was automatically terminated after 12 months of follow-up. In this study, IBSM support has been demonstrated to improve asthma-related quality of life, asthma control, lung function, and the number of symptom-free days as compared to UC. IBSM support was based on known key components for effective self-management and included weekly asthma control monitoring and treatment advice, online and group education, and communication (both online and offline) with a respiratory nurse. OBJECTIVE The objective of the study was to assess the long-term effects of providing patients 1 year of IBSM support as compared to UC alone. METHODS Two hundred adults with physician-diagnosed asthma (3 or more months of inhaled corticosteroids prescribed in the past year) from 37 general practices and 1 academic outpatient department who previously participated were invited by letter for additional follow-up at 1.5 years after finishing the study. The Asthma Control Questionnaire (ACQ) and the Asthma Quality of Life Questionnaire (AQLQ) were completed by 107 participants (60 UC participants and 47 IG participants). A minimal clinical important difference in both questionnaires is 0.5 on a 7-point scale. RESULTS At 30 months after baseline, a sustained and significant difference in terms of asthma-related quality of life of 0.29 (95% CI 0.01-0.57) and asthma control of -0.33 (95% CI -0.61 to -0.05) was found in favor of the IBSM group. No such differences were found for inhaled corticosteroid dosage or for lung function, measured as forced expiratory volume in 1 second. CONCLUSIONS Improvements in asthma-related quality of life and asthma control were sustained in patients who received IBSM support for 1 year, even up to 1.5 years after terminating support. Future research should be focused on implementation of IBSM on a wider scale within routine asthma care. TRIAL REGISTRATION International Standard Randomized Controlled Trial Number (ISRCTN): 79864465; http://www.controlled-trials.com/ISRCTN79864465 (Archived by WebCite at http://www.webcitation.org/6J4VHhPk4). Show less
Gaalen, J.L. van; Beerthuizen, T.; Meer, V. van der; Reisen, P. van; Redelijkheid, G.W.; Snoeck-Stroband, J.B.; ... ; SMASHING Study Grp 2013
INTRODUCTION This study examined the effectiveness of low-intensity, practice-tailored training for general practitioners (GPs) aimed at personal and organizational barriers that arise when... Show moreINTRODUCTION This study examined the effectiveness of low-intensity, practice-tailored training for general practitioners (GPs) aimed at personal and organizational barriers that arise when routinely asking patients' smoking status, advising to quit, and arranging follow-up. METHODS A cluster-randomized controlled trial with 49 GPs and 3,401 patients (677 smokers). Two patient groups participated: 2,068 patients (433 smokers) at baseline and 1,333 patients (244 smokers) postintervention. At follow-up, 225 smokers of both groups participated. The primary outcome was GP smoking cessation counseling (asking about smoking status, advising to quit, prescribing pharmacotherapy, and referring for behavioral support). Secondary outcomes were GPs' attitudes toward smoking cessation care, patients' intention to quit, and long-term quit rates. Outcomes were measured with GP self-report and patient report. RESULTS Patients of trained GPs reported more often being asked about smoking behavior compared to patients of untrained GPs (OR = 1.94, 95% CI = 1.45-2.60). According to GP self-report, the training increased the provision of quit-smoking advices (difference 0.56 advice per day; 95% CI = 0.13-0.98) and the ability and intention of providing smoking cessation care. We found no effect on GPs' arrangement of follow-up, smokers' intention to quit, and long-term quit rates. CONCLUSIONS After 1 hour of training, we found significant differences between trained and untrained GPs on the frequency in which they asked about smoking (patient reported) and advised smokers to quit (GP self-reported). The training did not increase prescriptions of pharmacotherapy, referrals to behavioral support, or quit rates. Future training methods should focus on the GPs' ability, tools, and skills to arrange follow-up to ensure intensive smoking cessation support. Show less
Gaalen, J.L. van; Bakker, M.J.; Bodegom-Vos, L. van; Snoeck-Stroband, J.B.; Assendelft, W.J.J.; Kaptein, A.A.; ... ; IMPASSE Study Grp 2012
ABSTRACT: BACKGROUND: Internet-based self-management (IBSM) support cost-effectively improves asthma control, asthma related quality of life, number of symptom-free days, and lung function in... Show moreABSTRACT: BACKGROUND: Internet-based self-management (IBSM) support cost-effectively improves asthma control, asthma related quality of life, number of symptom-free days, and lung function in patients with mild to moderate persistent asthma. The current challenge is to implement IBSM in clinical practice. METHODS/DESIGN: This study is a three-arm cluster randomized trial with a cluster pre-randomisation design and 12 months follow-up per practice comparing the following three IBSM implementation strategies: minimum strategy (MS): dissemination of the IBSM program; intermediate strategy (IS): MS + start-up support for professionals (i.e., support in selection of the appropriate population and training of professionals); and extended strategy (ES): IS + additional training and ongoing support for professionals. Because the implementation strategies (interventions) are primarily targeted at general practices, randomisation will occur at practice level.In this study, we aim to evaluate 14 primary care practices per strategy in the Leiden-The Hague region, involving 140 patients per arm. Patients aged 18 to 50 years, with a physician diagnosis of asthma, prescription of inhaled corticosteroids, and/or montelukast for ≥3 months in the previous year are eligible to participate. Primary outcome measures are the proportion of referred patients that participate in IBSM, and the proportion of patients that have clinically relevant improvement in the asthma-related quality of life. The secondary effect measures are clinical outcomes (asthma control, lung function, usage of airway treatment, and presence of exacerbations); self-management related outcomes (health education impact, medication adherence, and illness perceptions); and patient utilities. Process measures are the proportion of practices that participate in IBSM and adherence of professionals to implementation strategies. Cost-effective measurements are medical costs and healthcare consumption. Follow-up is six months per patient. DISCUSSION: This study provides insight in the amount of support that is required by general practices for cost-effective implementation of IBSM. Additionally, design and results can be beneficial for implementation of other self-management initiatives in clinical practice. TRIAL REGISTRATION: the Netherlands National Trial Register NTR2970. Show less
Rikkers-Mutsaerts, E.R.V.M.; Winters, A.E.; Bakker, M.J.; Stel, H.F. van; Meer, V. van der; Jongste, J.C. de; ... ; SMASHING Study Grp 2012
BACKGROUND: Excessive prescription of antibiotics in patients with lower respiratory tract infection (LRTI) is common in primary care and might be reduced by rapid point-of-care (POC) C-reactive... Show moreBACKGROUND: Excessive prescription of antibiotics in patients with lower respiratory tract infection (LRTI) is common in primary care and might be reduced by rapid point-of-care (POC) C-reactive protein (CRP) testing. However, the exact benefits of this test are unclear. OBJECTIVE: To review the available evidence for the role of POC CRP measurement in (i) guiding antibiotic prescription, (ii) predicting aetiology, (iii) prognosis and (iv) diagnosis (pneumonia) in LRTI patients. METHODS: For each research question, studies were retrieved through an electronic literature search in Medline, Embase and the Cochrane Library using synonyms for CRP and LRTI combined with different relevant subheadings. Study quality was assessed using validated instruments and predefined outcome measures were extracted from each study. RESULTS: The search yielded 13 articles, each answering one or more questions; one was excluded by insufficient internal validity. (i) One of four studies showed a significant reduction in the antibiotic prescriptions when applying POC CRP measurement [relative risk (RR) 0.6, 95% confidence interval (CI) 0.5-0.7]. (ii) Three studies on aetiology demonstrated that an elevated CRP was associated with bacterial [odds ratio (OR) 2.46-4.8] and one with viral (OR 2.7) aetiology. (iii) Results on the prognostic value were contradictory, providing evidence for faster symptom resolution (RR 1.16, 95% CI 1.1-1.3), higher mortality rate (RR 2.5, 95% CI 1.2-5.1) and no difference in outcome in patients with high CRP levels. (iv) Four studies showed that CRP had limited value as a single predictor of pneumonia. When combined with clinical assessment, its value increased according to two of these studies (receiver operating characteristic area from 0.7 to 0.9). However, methodological flaws and/or wide CIs limit the generalizability of findings in all studies. CONCLUSION: The evidence for the benefits of POC CRP measurement in LRTI patients in primary care is limited, contradictory and does not support its use to guide treatment decisions yet. Show less
Meer, V. van der; Hout, W.B. van den; Bakker, M.J.; Rabe, K.F.; Sterk, P.J.; Assendelft, W.J.J.; ... ; SMASHING Self-Management Asthma 2011
Background The prevalence and severity of chronic kidney disease (CKD) in primary care patients with diabetes or hypertension is unknown. Aim To assess the prevalence and severity of CKD in... Show moreBackground The prevalence and severity of chronic kidney disease (CKD) in primary care patients with diabetes or hypertension is unknown. Aim To assess the prevalence and severity of CKD in patients with diabetes and hypertension; and identify whether age, sex, diabetes, and hypertension are associated with CKD. Design of study Cross-sectional survey. Setting Two Dutch primary health care centres (15 954 enlisted patients). Method Patients, aged >= 25 years, with known diabetes type 2 (n = 471) or hypertension (n = 960), were selected on 1 October 2006. Initial screening uptake rates were assessed from the electronic patient records, and patients were invited when blood or urine measurements were missing. The presence of albuminuria was determined, glomerular filtration rate estimated, and clinical characteristics extracted. Results Initial screening uptake rates were 93% and 69% for. diabetes and hypertension, respectively, and increased to 97% (n = 455) and 87% (n = 836) after active invitation. The prevalence of CKD was 28%. in diabetes and 21% in hypertension only. The presence of diabetes was independently associated with albuminuria (odds ratio [OR] 4.23; 95% confidence interval [CI] = 2.67 to 6.71), but not with decreased estimated GFR (eGFR) (OR 0.75; 95% CI = 0.54 to 1.04). Age showed the strongest association with decreased eGFR (OR 2.73; 95% CI = 2.02 to 3.70). Conclusion In primary care, more than one-quarter of patients with diabetes and about one-fifth of patients with hypertension have CKD. The high prevalence justifies longitudinal follow-up in order to evaluate whether intensified cardiovascular risk management is beneficial in this primary care population. Show less
Drewes, Y.M.; Gussekloo, J.; Meer, V. van der; Rigter, H.; Dekker, J.H.; Goumans, M.J.B.M.; ... ; Assendelft, W.J.J. 2010
Background: Internet-based self-management has shown to improve asthma control and asthma related quality of life, but the improvements were only marginally clinically relevant for the group as a... Show moreBackground: Internet-based self-management has shown to improve asthma control and asthma related quality of life, but the improvements were only marginally clinically relevant for the group as a whole. We hypothesized that self-management guided by weekly monitoring of asthma control tailors pharmacological therapy to individual needs and improves asthma control for patients with partly controlled or uncontrolled asthma. Methods: In a 1-year randomised controlled trial involving 200 adults (18-50 years) with mild to moderate persistent asthma we evaluated the adherence with weekly monitoring and effect on asthma control and pharmacological treatment of a self-management algorithm based on the Asthma Control Questionnaire (ACQ). Participants were assigned either to the Internet group (n = 101) that monitored asthma control weekly with the ACQ on the Internet and adjusted treatment using a self-management algorithm supervised by an asthma nurse specialist or to the usual care group (UC) (n = 99). We analysed 3 subgroups: patients with well controlled (ACQ <= 0.75), partly controlled (0.75>ACQ <= 1.5) or uncontrolled (ACQ>1.5) asthma at baseline. Results: Overall monitoring adherence was 67% (95% CI, 60% to 74%). Improvements in ACQ score after 12 months were -0.14 (p = 0.23), -0.52 (p < 0.001) and -0.82 (p < 0.001) in the Internet group compared to usual care for patients with well, partly and uncontrolled asthma at baseline, respectively. Daily inhaled corticosteroid dose significantly increased in the Internet group compared to usual care in the first 3 months in patients with uncontrolled asthma (+278 mu g, p = 0.001), but not in patients with well or partly controlled asthma. After one year there were no differences in daily inhaled corticosteroid use or long-acting beta(2)-agonists between the Internet group and usual care. Conclusions: Weekly self-monitoring and subsequent treatment adjustment leads to improved asthma control in patients with partly and uncontrolled asthma at baseline and tailors asthma medication to individual patients' needs. Show less
This thesis describes the role of internet-based support in the delivery of an asthma self management program. First, the compliance and reliability of home lung function monitoring, one of the key... Show moreThis thesis describes the role of internet-based support in the delivery of an asthma self management program. First, the compliance and reliability of home lung function monitoring, one of the key features of asthma self-management, was studied and appeared to be high over a 4-week period. Second, we explored intrinsic barriers to current asthma management and revealed possible benefits from internet-based asthma self-management. Participants considered feasible electronic monitoring, easily accessible information, e-mail communication and the use of an electronic action plan to be the main benefits of internet-based asthma self-management. Third, we assessed the clinical effectiveness and cost effectiveness of an internet-based asthma self-management program over a period of 1 year. Internet-based self-management improved asthma related quality of life, asthma control, symptom-free days and lung function, but did not decrease the number of exacerbations. The benefits gained were attained at reasonable costs from a societal perspective and even more so from a health care perspective. Show less
