BackgroundIn many countries, substitution of physicians by nurses has become common due to the shortage of physicians and the need for high-quality, affordable care, especially for chronic and multi-morbid patients. We examined the evidence on the clinical effectiveness and care costs of physician-nurse substitution in primary care.MethodsWe systematically searched OVID Medline and Embase, The Cochrane Library and CINAHL, up to August 2012; selected and critically appraised published randomised controlled trials (RCTs) that compared nurse-led care with care by primary care physicians on patient satisfaction, Quality of Life (QoL), hospital admission, mortality and costs of healthcare. We assessed the individual study risk of bias, calculated the study-specific and pooled relative risks (RR) or standardised mean differences (SMD); and performed fixed-effects meta-analyses.Results24 RCTs (38,974 participants) and 2 economic studies met the inclusion criteria. Pooled analyses showed higher overall scores of patient satisfaction with nurse-led care (SMD 0.18, 95% CI 0.13 to 0.23), in RCTs of single contact or urgent care, short (less than 6 months) follow-up episodes and in small trials (N ≤ 200). Nurse-led care was effective at reducing the overall risk of hospital admission (RR 0.76, 95% CI 0.64 to 0.91), mortality (RR 0.89, 95% CI 0.84 to 0.96), in RCTs of on-going or non-urgent care, longer (at least 12 months) follow-up episodes and in larger (N > 200) RCTs. Higher quality RCTs (with better allocation concealment and less attrition) showed higher rates of hospital admissions and mortality with nurse-led care albeit less or not significant. The results seemed more consistent across nurse practitioners than with registered or licensed nurses. The effects of nurse-led care on QoL and costs were difficult to interpret due to heterogeneous outcome reporting, valuation of resources and the small number of studies.ConclusionsThe available evidence continues to be limited by the quality of the research considered. Nurse-led care seems to have a positive effect on patient satisfaction, hospital admission and mortality. This important finding should be confirmed and the determinants of this effect should be assessed in further, larger and more methodically rigorous research.

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BackgroundPhysicians’ shortage in many countries and demands of high-quality and affordable care make physician-nurse substitution an appealing workforce strategy. The objective of this study is to conduct a systematic review and meta-analysis of randomised controlled trials (RCTs) assessing the impact of physician-nurse substitution in primary care on clinical parameters.MethodsWe systematically searched OVID Medline and Embase, The Cochrane Library and CINAHL, up to August 2012; selected peer-reviewed RCTs comparing physician-led care with nurse-led care on changes in clinical parameters. Study selection and data extraction were performed in duplicate by independent reviewers. We assessed the individual study risk of bias; calculated the study-specific and pooled relative risks (RR) or weighted mean differences (WMD); and performed fixed-effects meta-analyses.Results11 RCTs (N = 30,247) were included; most were from Europe, generally small with higher risk of bias. In all studies, nurses provided care for complex conditions including HIV, hypertension, heart failure, cerebrovascular diseases, diabetes, asthma, Parkinson’s disease and incontinence. Meta-analyses showed greater reductions in systolic blood pressure (SBP) in favour of nurse-led care (WMD −4.27 mmHg, 95% CI −6.31 to −2.23) but no statistically significant differences between groups in the reduction of diastolic blood pressure (DBP) (WMD −1.48 mmHg, 95%CI −3.05 to −0.09), total cholesterol (TC) (WMD -0.08 mmol/l, 95%CI -0.22 to 0.07) or glycosylated haemoglobin (WMD 0.12%HbAc1, 95%CI -0.13 to 0.37). Of other 32 clinical parameters identified, less than a fifth favoured nurse-led care while 25 showed no significant differences between groups.Limitationsdisease-specific interventions from a small selection of healthcare systems, insufficient quantity and quality of studies, many different parameters.Conclusionstrained nurses appeared to be better than physicians at lowering SBP but similar at lowering DBP, TC or HbA1c. There is insufficient evidence that nurse-led care leads to better outcomes of other clinical parameters than physician-led care.

Disease management of chronic obstructive pulmonary disease (COPD) is complex and shortcomings in general practice care for COPD are common. A care bundle is a disease management aid used as a reminder and for steering specific elements of care. Our objectives were to test whether a COPD care bundle delivered to general practitioners (GPs) and practice assistants increases the implementation of key elements of COPD care.The study was a cluster-randomised clinical trial, with 1:1 randomisation of GPs and a 1-year follow-up. The intervention introduced a COPD care bundle and aimed at enhancing collaboration between GPs and practice assistants. The control group continued usual care. The primary outcome measure was the composite score from nine key elements of COPD care measured at the patient level.We enrolled 35 GPs and 216 patients with a median age of 69 years, 59% female, 69% Global Initiative for Chronic Obstructive Lung Disease group A or B. After 1 year, the between-group difference in change of the primary outcome measure was +2.2 (95% CI +1.5- +2.9) in favour of the intervention group. The intervention was associated with significantly higher implementation rates in seven out of nine key elements of care.Disease management using a COPD care bundle increased the implementation of key elements of COPD care in general practice.

Background: Proton-pump inhibitors (PPI) are among the most prescribed drugs worldwide, and a large body of evidence raises concerns about their inappropriate use. Previous estimates of inappropriate use varied due to different definitions and study populations. Aims: We aimed to measure the population-based incidence and time trends of PPI and potentially inappropriate PPI prescriptions (PIPPI) with a novel method, continuously assessing excessive cumulative doses based on clinical practice guidelines. We also assessed association of patient characteristics with PPI prescriptions and PIPPI. Methods: This was an observational study based on a large insurance claims database of persons aged >18 years with continuous claims records of ⩾12 months. The observation period was January 2012 to December 2017. We assessed the incidence and time trends of PPI prescriptions and PIPPI based on doses prescribed, defining ⩾11.5 g of pantoprazole dose equivalents during any consecutive 365 days (average daily dose >31 mg) as inappropriate. Results: Among 1,726,491 eligible persons, the annual incidence of PPI prescriptions increased from 19.7% (2012) to 23.0% (2017), ( p = <0.001), and the incidence of PIPPI increased from 4.8% (2013) to 6.4% (2017), ( p = <0.001). Age, male gender, drugs with bleeding risk and multimorbidity were independent determinants of PIPPI ( p = <0.001 for all). Conclusions: This study provides evidence that one of the most prescribed drug groups is commonly prescribed inappropriately in the general population and that this trend is increasing. Multimorbidity and drugs with bleeding risks were strong determinants of PIPPI. Addressing PPI prescriptions exceeding guideline recommendations could reduce polypharmacy and improve patient safety.

BackgroundThe Swiss health ministry launched a national quality program ‘QualiCCare’ in 2011 to improve health care for patients with COPD.The aim of this study is to determine whether participation in the COPD quality initiative (‘QualiCCare’) improves adherence to recommended clinical processes and shows impact on patients’ COPD care and on the impact of COPD on a person's life.MethodsCAROL is a cluster-randomized controlled trial with randomization on the general practioner (GP) level. Thirty GPs will be randomly assigned to equally sized intervention group or control group.Each GP will approach consecutively and regardless of the reason for the current consultation, patients aged 45 years or older, with a smoking history of ≥ ten pack-years (PY). Patients with confirmed (by spirometric evaluation) COPD will be included in the study. GPs in the intervention group will receive ‘QualiCCare’ education, which addresses knowledge, decision-making and behavioural aspects as well as delivery of care according to COPD quality indicators and evidence-based key elements. In the control group, no educational intervention will be applied and COPD patients will be treated as usual. The study period is one year.The primary outcome measure is an aggregated score of relevant clinical processes defining elements in the care of patients with COPD: smoking cessation counseling, influenza vaccination, motivation for physical activity, appropriate pharmacotherapy, patient education and collaborative care. Given a power of 90% and a significance level alpha of 5%, 15 GPs recruiting eight patients each will be necessary in both study arms. With an assumed dropout rate of 20%, 288 patients will need to be included.DiscussionIt is important to develop and implement interventions that add value to COPD care considering quality and efficiency. Care pathways modifying the knowledge and behavior of physicians have the potential for improving care by transferring knowledge to clinical practice.Trial registrationClinicalTrials.gov: NCT01921556

Leistungsmessgrössen in der Grundversorgung von Patienten mit COPD – eine Analyse Zusammenfassung. Hintergrund: Das Befolgen der Empfehlungen für ein gutes Management der chronisch-obstruktiven Lungenkrankheit (COPD) verbessert wichtige Endpunkte. Leistungsmessgrössen (LM) reflektieren die Qualität der Betreuung, dennoch existieren über die Dokumentation dieser Messgrössen bei COPD für die Grundversorgung kaum Daten. Ziel: Überprüfen der Dokumentation von COPD spezifischen Messgrössen in Grundversorgerpraxen des Kanton Zürich. Methode: Retrospektive Auswertung der Krankengeschichten von Patienten mit ärztlich diagnostizierter COPD, über einen Zeitraum von zwölf Monaten. Die Dokumentation der LM wurde durch Berechnen des Prozentsatzes der dokumentierten Parameter bewertet. Zusätzlich erfolgte ein Vergleich der LM Dokumentation mit einer Praxis, die ein strukturiertes COPD-Programm implementiert hatte. Resultate: Es wurden Daten von 115 Patienten aus 14 Praxen, davon 57% männlich, mit einem Durchschnittsalter von 68 (44–93) Jahren, analysiert. 46% waren aktive Raucher mit 56 (22–150 py) Packyears. Komorbiditäten waren in 73% der Fälle dokumentiert, der Schweregrad mit GOLD-Klassifizierung in 70% (GOLD I 11%, GOLD II 64%, GOLD III 21%, GOLD IV 4%).Gemäss Dokumentation hatten die Patienten durchschnittlich 1,4 Exazerbationen pro Jahr. Die Dokumentation der LM lag zwischen 16% (schriftlicher Aktionsplan im Falle von Exazerbationen) und 95% (Raucherstatus). Eine Dokumentation für eine Rauchstopp-Empfehlung fand sich in 74% der Fälle, für die Grippeimpfung in 49%. Eine adäquate medikamentöse Therapie und Instruktion der Inhalation war für 65 bzw. 57%, für pulmonale Rehabilitation in 27% der Patienten dokumentiert. Angaben zu einer kollaborativen und proaktiven Betreuung fanden sich bei 60 resp. 51%. Die Praxis mit dem laufenden COPD-Programm zeigte eine signifikant bessere Dokumentation (p<0,01) für alle LM ausser für die Grippeimpfung. Schlussfolgerung: In der Schweizer Grundversorgung bestehen Lücken in der Dokumentation hinsichtlich der Empfehlungen für eine nutzbringende COPD-Versorgung. Die Identifikation und Überbrückung dieser Lücken ist zentral für mehr Qualität in der Gesundheitsversorgung.

Vitamin B12 is often used to improve cognitive function, depressive symptoms, and fatigue. In most cases, such complaints are not associated with overt vitamin B12 deficiency or advanced neurological disorders and the effectiveness of vitamin B12 supplementation in such cases is uncertain. The aim of this systematic review and meta-analysis of randomized controlled trials (RCTs) is to assess the effects of vitamin B12 alone (B12 alone), in addition to vitamin B12 and folic acid with or without vitamin B6 (B complex) on cognitive function, depressive symptoms, and idiopathic fatigue in patients without advanced neurological disorders or overt vitamin B12 deficiency. Medline, Embase, PsycInfo, Cochrane Library, and Scopus were searched. A total of 16 RCTs with 6276 participants were included. Regarding cognitive function outcomes, we found no evidence for an effect of B12 alone or B complex supplementation on any subdomain of cognitive function outcomes. Further, meta-regression showed no significant associations of treatment effects with any of the potential predictors. We also found no overall effect of vitamin supplementation on measures of depression. Further, only one study reported effects on idiopathic fatigue, and therefore, no analysis was possible. Vitamin B12 supplementation is likely ineffective for improving cognitive function and depressive symptoms in patients without advanced neurological disorders.