Barriers and bridges to evidence based clinical practice

Effects of a shared protocol between urologists and general practitioners on referral patterns and initial diagnostic management of men with lower urinary tract symptoms in Italy: the Prostate Destination study

OBJECTIVE

To assess whether adopting a shared protocol between urologists and general practitioners (GPs) might change diagnostic procedures and referral patterns in the management of men with lower urinary tract symptoms (LUTS).

SUBJECTS AND METHODS

Forty-five urological centres and 263 GPs in Italy participated in this prospective study. Procedures adopted by GPs for evaluating five consecutive patients (aged > or = 50 years) were compared before (phase 1) and after (phase 2) implementation of the shared protocol. An evidence-based diagnostic algorithm was developed and approved by participating urologists and presented to local GPs at a training session. Protocol modifications were allowed after discussion with GPs. Direct costs of diagnostic procedures carried out before and after implementing the protocol were calculated from the perspective of the national health service.

RESULTS

In all, 903 patients were evaluable in phase 1 and 856 in phase 2. Implementation of the protocol did not change referral patterns, with about half the patients being managed entirely by GPs. The use of a digital rectal examination by GPs increased from 32% to 41%, use of transrectal and suprapubic ultrasonography decreased from 33% to 23% and 53% to 44%, respectively, (all P < 0.001) and use of the International Prostate Symptom Score increased from 4.5% to 23.1% (P < 0.001). Overall, protocol-recommended tests were used more frequently, while those not recommended decreased after implementing the protocol. However, overuse of the tests not recommended (i.e. urine culture and free/total prostate specific antigen ratio) remained high. The mean cost per patient of diagnostic procedures ordered by GPs decreased from Euros 71.82 to Euros 61.93, with Euros 9.9 saved for each patient.

CONCLUSION

Our intervention failed to decrease the percentage of cases of LUTS being referred to specialists, but was moderately effective in inducing changes in the diagnostic management by GPs that were indicative of increased compliance with best-practice principles, and produced cost savings of 13.8%.

Evolution of a mature clinical informationist model

Achieving evidence-based practice will require new approaches to providing information during health care delivery and to integrating evidence and informatics at the point of care. To support evidence-based practice, Vanderbilt University Medical Center's Eskind Biomedical Library (EBL) introduced the role of clinical informationist, an information specialist with sufficient knowledge and insight to function as a true partner in the health care team. To further disseminate evidence-based knowledge, the Vanderbilt University Medical Center's (VUMC) electronic medical record system and pathway development processes integrate advanced information synthesis capabilities provided by clinical informationists. Combining clinical informationist expertise with informatics tools is an effective strategy for delivering the evidence needed to support patient care decisions.

Life on the exponential curve--time to rattle the academic cage? A view from the street

The history of health service research has been characterized by an overwhelming volume of literature that has little impact on those who actually get on and do the work. The focus has been on an examination of why evidence is not accommodated into practice and how the barriers to implementation can be reduced. The fact that the evidence-based product may not be relevant to those at whom it is directed had not until recently been considered a possibility. Over the past 20 years there has been a consolidation of two cultures in the National Health Service--the academic/researcher and the clinician/practitioner. This paper sets the two cultures within the context of a community of practice framework and argues that the emphasis should move away from managing the interface to a fundamental reappraisal of the health service academic community.

Providing evidence-based answers to complex clinical questions: evaluating the consistency of article selection

PURPOSE

Health care providers must maintain familiarity with current biomedical evidence, but clinicians struggle to maintain their awareness of current research because of the demands of daily practice and the exponential growth of medical knowledge. Clinical information specialists (informationists), trained experts in reviewing and filtering the medical literature in response to complex clinical queries, may be able to assist practicing clinicians. This study compared informationists and two categories of physicians in their article selection in response to two complex clinical questions.

METHOD

The study was performed at Vanderbilt University Medical Center. A total of 15 faculty and staff from three groups were recruited (five general physicians, five physicians trained in research methodology, and five informationists). The participants reviewed two previously selected clinical questions, worked in focus groups to define the pertinent facet questions of the questions, and then ranked the articles by pertinence to the clinical questions.

RESULTS

In general, both informationists and physicians trained in research methodology had a high degree of intergroup agreement for ranking article pertinence, while the generalists were less likely to agree on pertinent articles.

CONCLUSIONS

These findings suggest that informationists consistently select articles relevant to answering complex clinical queries and may assist practicing clinicians by providing information relevant to patient cases.

The structure, processes, and outcomes of Banner Health's corporate-wide strategy to improve health care quality

Banner Health consists of 19 hospitals, 6 long-term care centers and a number of family health clinics, home care programs, and home medical equipment providers in 9 Western and Midwestern states. Banner Health has developed an integrated organization-wide effort called Care Management to simultaneously address quality and safety, reduce patient errors, and measure and report performance, outcomes, and patient satisfaction, while controlling costs through utilization management, care coordination, and performance improvement. Eleven functional areas were identified and more than 36 cross-functional and cross-facility work groups have been created. These work groups use a deliberate process in which knowledge is created, reviewed, synthesized, distributed, taught, and implemented within the system. Key lessons after the first 2 years of this effort are as follows: information sharing and collegial support can be established within newly merged organizations; there must be continued enhancement of both the accuracy and timeliness of data; the ability of health care professionals to understand and use sophisticated statistical tools has increased; a variety of methods should be used to distribute the knowledge products; and the strategy to have functional teams and work groups develop systemwide policies and toolkits but leave implementation to facility employees has worked relatively well.

Physician attitudes towards evidence-based medicine in eastern Saudi Arabia

BACKGROUND

Because of the growing awareness of the limitations of traditional information on clinical decisions, there is a shift in medical practice towards evidence-based medicine (EBM).

METHODS

We assessed physician attitudes towards evidence-based medicine (EBM) in a cross-sectional study of a random sample of physicians in primary health care centers (PHCCs) and general hospitals in the Dammam area of eastern Saudi Arabia. A random sample of 409 physicians was drawn from the population of doctors. The tool of data collection was a self-administered questionnaire. Only physicians who said they had heard about EBM were included in the study.

RESULTS

Only 108 (39.6%) physicians out of those who responded had heard about EBM. Of those, 71 (65.7%) were in favor of EBM and 89 (90.8%) had a positive attitude towards EBM, as they scored above the cut-off point in the questionnaire. Using multiple linear regression, it was found that critical appraisal knowledge and EBM knowledge scores were the only significant predictor variables of EBM attitude score.

CONCLUSIONS AND RECOMMENDATIONS

There was an overall positive attitude among physicians towards EBM. There was a proportional relation between the knowledge of EBM and attitude towards it. Dissemination of the EBM concept and practice among physicians is highly recommended.

Guidelines, evidence, and cultural factors

OBJECTIVE

To compare four recent guidelines on uncomplicated cystitis and to examine how cultural factors may have affected recommendations.

DESIGN

Descriptive study with a qualitative analysis of authors' reasons for recommendations.

MATERIAL

Guidelines for general practitioners published 1999-2000 from Germany, The Netherlands, Norway, and Belgium on diagnosis and treatment of uncomplicated cystitis. Opinions of the guideline authors on the influence of local factors on the recommendations were collected before and after feedback on the differences between the guidelines.

RESULTS

Few cited references were shared between the guidelines, and recommendations differed substantially, especially on diagnostic strategies and referral criteria. The authors attributed parts of the differences to local factors. German and Belgian authors stressed the need for safety in their diagnostic and therapeutic approach, while Dutch authors felt confident in their gatekeeper role and the Norwegian authors mainly relied on "the evidence". Dutch and Belgian authors perceived patients to hold power, German authors referred to the power of the sub-specialists, while the Norwegians aimed to share power with the patient through a patient-centred approach.

CONCLUSION

There are substantial differences even between high-standard guidelines on the same well-defined clinical entity. The selection of literature data, and diagnostic and therapeutic recommendations, seemed to be influenced by such cultural aspects as habits, the patient's expectations, and the structure of the healthcare system.

Barriers to evidence based practice in primary care: a review of the literature

People with health problems deserve a service that is based on best available evidence and is possible within obtainable resources. No credible health professional could deny that sound evidence should be an integral part of clinical decision making. The demand for up to date information to inform care and treatment highlights the crucial role of research and development in the modern health service. However, within primary care, practitioners have not always been able to underpin their actions with robust research findings. In addition, the research activities within primary care are limited to a small number of 'enthusiasts'. This paper aims to analyse the literature surrounding this area, highlighting the significance of United Kingdom (UK) government reports on primary care, primary care research activities and the pursuit of evidence based practice in primary care. It shows that primary care research has been the 'poor relation' in terms of research funding and this has resulted is a dearth of high quality research results to underpin practice.

Exploring the Evidence for Occupational Therapists' Interventions with Clients with Lateral Epicondylitis

Lateral epicondylitis is known to be a major problem in work absenteeism and permanent partial disability. Although occupational therapists are often asked to treat clients with this disorder, its management remains controversial since there is insufficient research evidence to favour any particular intervention. This study gathered information on the current interventions used by occupational therapists with clients with lateral epicondylitis according to three phases: acute, subacute and chronic. A self-administered questionnaire was sent to a convenience sample of 219 occupational therapists working in the province of Québec in Canada.

After two reminders, a participation rate of 81% was obtained. Over 20 interventions were identified and sorted into five categories: education, activities/exercises, assistive devices, environment and pain management modalities. Overall, education about risk factors was the most frequently used intervention by occupational therapists in all phases. Activities/exercises formed the second most frequently used intervention group, but were more preferred in the subacute and chronic phases.

Although many interventions are currently used in health care facilities, few studies on their effectiveness have been conducted. This study explored the gap between research and practice by surveying clinicians on their management of clients with lateral epicondylitis, allowing the targeting of areas considered useful for future studies in occupational therapy.

Adoption of innovations by specialised nurses: personal, work and organisational characteristics

BACKGROUND

To gain insight in the factors that influence the adoption of professional information by specialised nurses, we studied the effects of individual, work and organisational characteristics on the extent to which continence nurses gained knowledge and made use of a book on nursing diagnosis and interventions for patients with urinary incontinence, which they received as a present.

METHODS

Subjects were all members of the Dutch Association of Continence Nurses. Data collection took place via a postal questionnaire with closed questions. In total, 109 valid questionnaires (78%) were received back. Stepwise selected ordered logit models were estimated with reading the book and knowledge and use of five selected parts of it as dependent variables and individual, work and organisational characteristics as independent variables.

RESULTS

The most important factors found to promote reading of the book and taking knowledge of the parts of it were a personal characteristic of the nurses called "information directedness" (or eagerness to acquire professional information from other sources), the presence of an "innovative atmosphere" at the department, and "relevance" of the information for daily nursing practice. The most important factors found to promote the use of the book are (again) information directedness, working at a (relatively) small department and having experience with nursing diagnosis.

CONCLUSIONS

Results suggest that nurses differ in the degree to which they are open to innovations and that information directedness might be a useful indicator of this characteristic. In addition, the degree of innovativeness of the atmosphere at the department and the relevance of the innovation for nursing practice are important factors influencing the success or failure of innovations in nursing practice.

Expanding developmental and behavioral services for newborns in primary care: program design, delivery, and evaluation framework

BACKGROUND

Healthy Steps (HS) for Young Children strengthens the healthcare system as a source of developmental and behavioral support for parents. This series of papers presents a study of HS as implemented within a large health maintenance organization that tested the benefit of beginning intervention services during pregnancy with an extension program called "PrePare" (PP).

METHODS

The design was a quasi-experimental comparison of intervention families with families receiving usual care. Within the intervention, families were assigned randomly to begin receiving Healthy Steps services prenatally (PP+HS) or shortly after birth (HS). We used a systems model, PRECEDE/PROCEED, for planning, implementation, and process evaluation. Outcomes examined when the infants were aged 3 months included changes in family social support and capacity for parenting, parenting behaviors, and satisfaction and loyalty to the health plan.

RESULTS

The sample of 439 families was distributed as follows: usual care (n=136), prenatal initiation of services (PP+HS; n=151), and postnatal Healthy Steps (HS; n=152). Information about program implementation, including provider satisfaction, is provided for the early phases of the study (through age 3 months). The intervention was delivered with fidelity and with minimal disruption to the practice styles of pregnancy providers, most of whom considered the program valuable to their patients. Relative to families in the comparison group, families in the intervention group received more usual care services and more intervention-specific services.

CONCLUSIONS

The pregnancy and newborn phases of the intervention were embedded successfully within the existing healthcare delivery system. The program was considered valuable for parents by providers and parents. Participating families received more services and a greater variety of services than families in usual care. Whether these differences result in beneficial outcomes for families or the health plan are topics of the subsequent papers.

Barriers to evidence-based practice in primary care

BACKGROUND

Evidence-based practice is one of the most important underlying principles in modern health care. In the United Kingdom, successive governments have highlighted the fact that a quality health service is built upon the use of best evidence. Health professionals are becoming more accountable within clinical governance structures for the care they provide. The need to use robust research findings effectively is a critical component of their role. However, studies show that a number of barriers prevent the effective use of best available evidence.

AIM

This study aimed to identify barriers to evidence-based practice in primary care.

METHOD

A specially designed questionnaire was used to gather respondents' perceptions of the barriers to evidence-based practice. Data were collected in 2000/2001.

FINDINGS

Findings show that general practitioners (GPs) ranked barriers differently to community nurses. GPs believed that the most significant barriers to using evidence in practice were: the limited relevance of research to practice, keeping up with all the current changes in primary care, and the ability to search for evidence-based information. In contrast, the most significant barriers to the identified by community nurses were poor computer facilities, poor patient compliance and difficulties in influencing changes within primary care. This suggests that these two groups may require different strategies for barrier removal.

CONCLUSIONS

Identifying barriers is just the first step to addressing issues surrounding the use of evidence-based practice. Extra resources will be needed if these barriers are to be tackled. However, if the resultant change improves the health and wellbeing of people and communities, then the extra costs would be offset by more efficient use of services.

How to implement change in clinical practice

Changing clinical practice is a major challenge. It is not acceptable simply to send out a new clinical guideline or care pathway and expect there to be a change in practice. This paper addresses the problems associated with the development of a clinical guideline and sets out a clear strategy for dissemination, implementation and evaluation in a way that should promote the successful change of practice. The first section examines the development of the guideline. National or international guidelines may well exist but local adaptation and refinement of those guidelines are required, along with a local summary document. Valid, reproducible, evidence-based, clear, logical, easily accessible guidelines need to be available after widespread local, multi-professional consultation. Second, prior to dissemination, there needs to be promotion among all the health professionals and families involved with the change in practice. Appropriate educational and multi-disciplinary interventions, highlighting and informing in workshops and preparing people for the changes are recommended. Recognising the barriers to implementation and change and addressing these locally is important. Once the guideline has been disseminated and implemented and the change in practice has occurred, full evaluation and ongoing audit of the changes in practice are required to sustain the changes.

A trial of an anti-absconding intervention in acute psychiatric wards

Absconding from acute psychiatric wards is a significant clinical problem that can place patients and others at risk, as well as being burdensome and anxiety provoking for staff. Previous studies have not convincingly demonstrated the best way to minimize the frequency of absconding. The aim of this trial was to evaluate the impact of an intervention to reduce absconding by patients from partially locked acute psychiatric wards. Five acute psychiatric wards in one hospital were entered into a stepped, before-and-after controlled trial. Following 3 months at baseline, nursing staff on the wards were trained in the intervention and monitored in its execution for the next 3 months. Absconding and violent incidents were recorded by nursing staff through shift reports and validated against officially collected forms. Absconding reduced by 25% overall during the intervention period, a fall which was statistically significant. Three out of the five wards implemented the intervention effectively and two of these achieved decreases in their absconding. The other two wards were not able to consistently implement the intervention, and their absconding rates remained unchanged. The findings support the efficacy of the intervention in reducing absconding. Further research is now required to replicate these findings, and to confirm that any reductions are maintained over time.

The potential impact on melanoma mortality of reducing rates of suboptimal excision margins

We estimated the potential benefit of reducing rates of inadequate excision margins in the treatment of localized invasive melanoma. A computer-simulated Markov decision analytic model was created to follow until death a hypothetical cohort of 55 y old Caucasians, newly diagnosed in a community setting with localized invasive melanoma. We considered two scenarios: usual care, and a hypothetical intervention. Markov states included well without local recurrence, local recurrence, cured, and dead. Published population-based data were used for rates of optimal excision margins, local recurrence, and mortality. Two outcome measures were employed: melanoma-related mortality and life expectancy. Major assumptions included: local recurrence occurs within 10 y of diagnosis, and patients revert to general population mortality rates 10 y following melanoma excision or subsequent local recurrence. For usual care, the model estimated 8.17% melanoma-related mortality. Modeling intervention with 100% optimal excision margins reduced this rate to 6.15%, a 25% relative reduction in mortality. This increased average life expectancy by 0.437 y, which equates to approximately 11 additional years in the 4% who would not experience a local recurrence due to improved excision margins. Increasing the percentage of optimal excision margins to 80% would still yield substantial improvement, with 6.83% melanoma-related mortality, saving 0.29 life-years compared with baseline. Results were insensitive to moderate changes in the parameter values. Suboptimal excision margins may account for approximately one-fourth of all melanoma-related mortality for localized invasive melanoma. If intervention can achieve even modest adherence to optimal excision margins, it might substantially reduce mortality.

Type 2 diabetes in family practice. Room for improvement

OBJECTIVE

To further knowledge of diabetes management in family practice. DESIGN Retrospective, observational chart audit study.

SETTING

Southwestern Ontario.

PARTICIPANT

A random sample of non-academic family physicians and a random selection of their patients with type 2 diabetes mellitus.

MAIN OUTCOME MEASURES

Glycemic control as measured by HbA1c and adherence to recommendations in clinical practice guidelines (CPGs).

RESULTS

Eighty-four percent of patients had at least one HbA1c test ordered in the previous year. Overall mean HbA1c was 0.079 and half-the patients had levels deemed acceptable by 1992 CPGs. Screening for microvascular complications was disappointing; only 28% were tested for microalbuminuria, and 15% were examined for diabetes-related foot conditions. Screening for macrovascular complications was more comprehensive; blood pressure was measured in 88%, and lipid profiles documented in 48%, of patient charts.

CONCLUSION

Management of glycemic control and screening for microvascular and macrovascular disease in family practice can be improved.

The role of clinical guidelines, policies and stewardship

The purpose of guidelines is to improve the quality of care for patients and improve clinical effectiveness by implementation of evidence-based care in daily practice. However, the potential of guidelines for resolving clinical questions should not be overstated. Ideally, policy makers use input from research data, as well as current prescribing habits, when developing guidelines. Care has to be given to the quality of guidelines, as well as their effect on outcome. Prospective validation of the content and use of guidelines must be set up. Beside the quality of guidelines, efforts are necessary for an effective implementation into daily practice. Many studies have shown that a combination of different interventions is needed. Thereby, an investigation of possible barriers should be an essential part of any strategy.

Comparing evidence-based practice of nurses and physiotherapists

Evidence-based practice has become an ubiquitous concept within nursing. However, there is little comparative data of nursing with other professions on attitudes to evidence-based practice. This article reports on a survey of nurses' and physiotherapists' sources of knowledge and perceived barriers to evidence-based practice within a large teaching hospital. A total of 324 questionnaires were sent to nurses and physiotherapists. The results showed that both physiotherapists and nurses accessed a wide variety of sources of knowledge. However, nurses were more likely than physiotherapists to use policy and procedure manuals and discussions with medical staff. Both professions have problems with overcoming the barrier of time. Nurses were more likely than physiotherapists to rate themselves as having poor evidence-based practice skills.

Variations in bronchiolitis management between five New Zealand hospitals: can we do better?

OBJECTIVES

To determine the current management of bronchiolitis by five major New Zealand hospitals and to identify areas for improvement.

METHODS

Lists of infants under 1 year of age admitted with bronchiolitis during 1998 were obtained from the casemix offices of the five largest New Zealand hospitals with paediatric services. Hospital records from a random sample of these admissions were reviewed.

RESULTS

Out of the 409 infants admitted overnight, 8% had been born less than or=32 weeks gestation and 53% were aged younger than 6 months. Overall, 59% received oxygen, 21% had nasogastric fluids, 22% had intravenous fluids, 34% were prescribed antibiotics, 42% received bronchodilators and 60% had a chest radiograph. Respiratory secretions were collected for viral studies from 58% of infants and, in 59%, respiratory syncytial virus was detected. Significant variations in management were detected between hospitals. The overall proportion of infants requiring oxygen, intravenous or nasogastric fluids (65%) was significantly higher than that found in a 1986-1988 Christchurch study where only 25% received one or more of these interventions (P < 0.001).

CONCLUSIONS

Opportunities exist to rationalize bronchiolitis management in New Zealand with potential cost savings, particularly by reducing the number of chest radiographs and prescribing of unnecessary antibiotics and bronchodilators.

Evidence based medicine: an overview

Evidence based medicine (EBM) considered one of the most important developments in the practice of medicine in recent years, has evolved as a tool for improving the quality of health care. Several studies have shown EBM to be safe and cost-effective. Physicians have welcomed EBM and shown a positive attitude toward it and have expressed desire to learn more about it. This is consistent in most studies done in different countries. However, some studies found considerable misunderstanding about terms and websites used in EBM. The major barriers to the practice of EBM perceived by physician in different studies include insufficient time and evidence, patients' preference and financial constraints. Training has been found to be conducive to the implementation and promotion of EBM. Some Arab countries are already implementing EBM and plan to include it in the undergraduate curriculum. In Saudi Arabia EBM was introduced in the late 90's and a National EBM Advisory Board was formed.

The COMpliance Praxis Survey (COMPASS): a multidimensional instrument to monitor compliance for patients on antihypertensive medication

Low compliance is suspected as a major reason for treatment failure in hypertensive patients. To identify patients with low compliance at the commencement of antihypertensive treatment, the compliance praxis survey (COMPASS) was utilised. A total of 161 physicians identified 2389 hypertensive patients treated by ACE-inhibitor. The physicians rated the compliance of the patients at baseline and at 6-month follow-up prospectively. Standard care was given. The mean age of patients was 64.5 years (54.4% women). The baseline overall score of compliance was medium to high in 97.3% of patients. A quarter of all patients (24.7%) were described as having difficulties to follow lifestyle changes, 22.3% lacked sufficient social support, and 31.0% were unwilling to obtain additional information about illness and treatment. Patients who had received prior treatment for cardiovascular disease were less compliant than those who received first treatment within this study (P=0.05). Younger (P<0.01), male patients (P<0.01), and those without prior cardiovascular disease (P<0.001) were significantly more likely to stop the antihypertensive treatment without a doctor's recommendation. Doctors' rating of compliance at baseline correlated well with ongoing treatment at 6-month follow-up. In conclusion, the COMPASS survey questionnaire is a useful instrument for doctors to differentiate between patients who lack resources and to then counsel patients based on their individual needs.

Application of the development stages of a cluster randomized trial to a framework for valuating complex health interventions

INTRODUCTION

Trials of complex health interventions often pose difficult methodologic challenges. The objective of this paper is to assess the extent to which the various development steps of a cluster randomized trial to optimize antibiotic use in nursing homes are represented in a recently published framework for the design and evaluation of complex health interventions. In so doing, the utility of the framework for health services researchers is evaluated.

METHODS

Using the five phases of the framework (theoretical, identification of components of the intervention, definition of trial and intervention design, methodological issues for main trial, promoting effective implementation), corresponding stages in the development of the cluster randomized trial using diagnostic and treatment algorithms to optimize the use of antibiotics in nursing homes are identified and described.

RESULTS

Synthesis of evidence needed to construct the algorithms, survey and qualitative research used to define components of the algorithms, a pilot study to assess the feasibility of delivering the algorithms, methodological issues in the main trial including choice of design, allocation concealment, outcomes, sample size calculation, and analysis are adequately represented using the stages of the framework.

CONCLUSIONS

The framework is a useful resource for researchers planning a randomized clinical trial of a complex intervention.

A pilot project to evaluate implementation of clinical guidelines

With the global emphasis on quality care based on evidence, this pilot project aimed to examine changes in nursing practice following dissemination and implementation of clinical guidelines. The project implemented a fall prevention guideline in an acute care hospital. Fall preventive nursing practice of the hospital was compared before and after implementation of the guidelines. Results about the changes in nursing practice are discussed in terms of the methods and processes of dissemination and implementation, as well as the features of the guidelines.

The implementation of venous leg ulcer guidelines: process analysis of the intervention used in a multi-centre, pragmatic, randomized, controlled trial

The production and implementation of clinical practice guidelines is currently a high political priority and a rapidly developing field within healthcare in the United Kingdom (UK). Their purpose is to provide clinicians with a synthesis of the best available external evidence and operationalize the implementation of evidence-based practice. Despite indications that clinical guidelines can make a difference to the quality of patient care, there is some evidence that practitioners struggle with their application. The aim of this paper is to report one element of a trial undertaken by three collaborating universities in the Northern and Yorkshire Region of the UK health service during 1997-1998. The objective was to understand what makes guidelines acceptable and usable, or otherwise, to health professionals. The findings reported in this paper describe the process of care in those general practices that elected to implement guidelines for the management of patients with venous leg ulcers. We conclude that planning for training, resource and quality improvement processes must be built into a team's guidelines implementation procedures. A preliminary needs analysis of the contextual 'hurdles and levers' within each primary healthcare team is also necessary to identify individual issues that must be addressed if the process is to succeed. These findings provide some lessons for successful implementation of clinical guidelines in general. Recommendations for nursing policy makers, managers, practitioners and researchers are included.

Variations in general practitioners' views of asthma management in four European countries

The aim was to identify differences and similarities in views regarding asthma management among general practitioners in four European countries (Germany, Netherlands, Norway and Sweden), and to explore reasons for suboptimal performance. The results are to be used for the development and tailoring of educational interventions. Semistructured interviews with 20 GPs in each country were conducted and analysed using a phenomenographic approach. The domains of (i) general view of asthma, (ii) the doctor-patient relationship in managing asthma, and (iii) overall management of asthma (treatment goals and evaluation of results) were approached during the interviews. There were different ways of experiencing phenomena related to asthma management both within and between the four countries. Three general views on asthma were found where different perspectives were emphasised: a medical, a 'global' (including community health, social and environmental aspects) and a patient's perspective. Within the medical perspective, only a few German doctors emphasised a psychological aetiology of asthma. The views on the doctor-patient relationship described as 'authoritarian', 'teaching' or 'empowering' occurred similarly in all countries. The majority of the doctors showed confidence in the effectiveness of the pharmaceutical treatment of asthma, some doctors were concerned about limitations, but only in Germany a few doctors were explicitly critical of the values of conventional pharmaceutical treatment. The main treatment goals were either conceived as getting the patient symptom-free (Netherlands, Norway, and Germany) or to control the inflammatory process (Sweden). Several German and some Norwegian doctors expressed the view that patients had to accept the disease and learn how to manage it, while a few German doctors aimed at alternative treatments of asthma. The existence of qualitatively different ways of experiencing asthma management, both in and between countries, calls for consideration when trying to implement general evidence-based treatment guidelines. A variation of approaches in continuing medical education for GPs is needed to address such existing beliefs and conceptions that could sometimes be opposed to the content of educational messages.

Evidence-based preventive practice guidelines. Qualitative study of useful resources on the Internet

OBJECTIVE

To explore family physicians' perspectives on how best to provide evidence-based preventive clinical practice guidelines (CPGs) to physicians on the Internet.

DESIGN

Focus groups.

SETTING

A large, urban centre and a rural community hospital.

PARTICIPANTS

Thirty-four of more than 150 family physicians who subscribed to an e-mail discussion group.

METHOD

Qualitative survey of four focus groups, analysis of transcripts and researchers' notes.

MAIN FINDINGS

Four themes characterized participants' preferences for disseminating preventive CPGs on the Internet: content expectations; quick, easy access to information; trustworthiness of information; and implications for clinical practice.

CONCLUSION

Physicians want quick, easy access to trustworthy information. A website for preventive CPGs with these characteristics would be a useful resource.

Why do GPs not implement evidence-based guidelines? A descriptive study

BACKGROUND

There is an acknowledged gap between research findings and their implementation in clinical practice despite the existence of effective educational interventions.

OBJECTIVES

Our aim was to identify what is impeding GPs from pursuing currently recognized good practice and implementing evidence-based guidelines in their management of hypertension in the elderly.

METHOD

We carried out a qualitative study using semi-structured interviews conducted during focus group outreach visits to 34 GPs from nine practices in Merseyside involved in an educational programme designed to improve the management of hypertension in the elderly.

RESULTS

Several barriers to the implementation of evidence-based guidelines in the management of hypertension in the elderly were identified. These included: doubts about the applicability of trial data to particular patients; the poor adherence of GPs to practice protocols; ageist attitudes of some GPs; the effect of time pressure and financial considerations making the subject a low priority; the absence of an effective computer system; and the absence of an educational mentor. All participants demonstrated a very positive attitude to practice-based education. They also welcomed external audit data, which compared their performance with that of other practices. Single-handed GPs were particularly enthusiastic about this approach as it provided them with the peer pressure they lacked.

CONCLUSIONS

In order to bridge the gap between research and practice, educators need to address the various 'barriers to change' amongst practitioners.

Overview of Evidence-based Medicine: Challenges for Evidence-based Laboratory Medicine

Evidence-based medicine (EBM) has been driven by the need to cope with information overload, by cost-control, and by a public impatient for the best in diagnostics and treatment. Clinical guidelines, care maps, and outcome measures are quality improvement tools for the appropriateness, efficiency, and effectiveness of health services. Although they are imperfect, their value increases with the quality of the evidence they incorporate. Laboratory professionals must direct more effort to demonstrating the impact of laboratory tests on a greater variety of clinical outcomes. Laboratory and clinical practitioners must be familiar with many of the accessible electronic and paper tools for searching for evidence. Detailed statistical and epidemiologic knowledge is not essential, but critical appraisal skills and a competent understanding of the strengths and weaknesses of systematic review and metaanalysis are necessary. Overemphasis on complexity and failure to recognize time limitations are major barriers to translating EBM into everyday practice. Emphasizing and practicing the role of the laboratory professional as a skilled clinical consultant strongly grounded in evidence as well, in addition to better integration of laboratory and clinical information and improved laboratory reports will overcome most barriers. There is a poverty of good, primary studies of test evaluations. Institution of more consistent standards for the design and reporting of studies on diagnostic accuracy should improve the situation. If nothing else, systematic reviews have demonstrated the need for more good-quality primary research in laboratory medicine.

The socio-organizational age of artificial intelligence in medicine

The increasing pressure on Health Care Organizations (HCOs) to ensure efficiency and cost-effectiveness, balancing quality of care and cost containment, will drive them towards a more effective management of medical knowledge derived from research findings. The relation between science and health services has until recently been too casual. The primary job of medical research has been to understand the mechanisms of disease and produce new treatments, not to worry about the effectiveness of the new treatments or their implementation. As a result many new treatments have taken years to become part of routine practice, ineffective treatments have been widely used, and medicine has been opinion rather than evidence based. This results in suboptimal care for patients. Knowledge management technology may provide effective approaches in speeding up the diffusion of innovative medical procedures whose clinical effectiveness have been proved: the most interesting one is represented by computer-based utilization of evidence-based clinical guidelines. As researchers in Artificial Intelligence in Medicine (AIM), we are committed to foster the strategic transition from opinion to evidence-based decision making. Reviews of the effectiveness of various methods of guideline dissemination show that the most predictable impact is achieved when the guideline is made accessible through computer-based and patient specific reminders that are integrated into the clinician's workflow. However, the traditional single doctor-patient relationship is being replaced by one in which the patient is managed by a team of health care professionals, each specializing in one aspect of care. Such shared care depends critically on the ability to share patient-specific information and medical knowledge easily among them. Strategically there is a need to take a more clinical process view of health care delivery and to identify the appropriate organizational and information infrastructures to support this process. Thus, the great challenge for AIM researchers is to exploit the astonishing capabilities of new technologies to disseminate their tools to benefit HCOs by assuring the conditions of knowledge management and organizational learning at the fullest extent possible. To achieve such a strategic goal, a guideline can be viewed as a model of the care process. It must be combined with an organization model of the specific HCO to build patient careflow management systems. Artificial intelligence can be extensively used to design innovative tools to support all the development stages of those systems. However, exploiting the knowledge represented in a guideline to build them requires to extend today's workflow technology by solving some challenging problems.

Influencing clinical practice: evidence-based wound care

Influencing clinical practice increasingly requires quality evidence to support recommendations and guidelines. Review of the evidence for wound care interventions provides practitioners with several challenges. Randomized controlled trials are scarce and have many limitations with respect to wound care, while other sources of evidence are often flawed because of the complexities of the wound-healing process or are limited by their methodology. This article attempts to explain some of the benefits and problems associated with different types of evidence, all of which need to be considered in order to influence wound management.

EBM in practice: paediatrics

There is a substantial gap between what we "need to know" and what we "actually know" to practise evidence-based paediatrics. Good evidence from primary research studies about effective child healthcare strategies (for individuals or populations) for a broad range of important issues is lacking. Systematic reviews of existing good-quality research evidence, or evidence-based clinical practice guidelines relevant to child health, are often not readily available or accessible to practising clinicians. Recent initiatives to supply the information needs of paediatricians should lead to improvements in the availability, accessibility and applicability of the "evidence-base". These efforts need wider commitment and further resources. The gap between what we already "know" and what we "actually do" in daily practice is even wider. We need to improve our efforts to implement existing research knowledge, using strategies with demonstrated effectiveness, to promote the timely transfer of research evidence into actual practice. The health outcomes of these efforts need to be systematically evaluated.

Rationality in medical decision making: a review of the literature on doctors' decision-making biases

The objectives of this study were to describe ways in which doctors make suboptimal diagnostic and treatment decisions, and to discuss possible means of alleviating those biases, using a review of past studies from the psychological and medical decision-making literatures. A number of biases can affect the ways in which doctors gather and use evidence in making diagnoses. Biases also exist in how doctors make treatment decisions once a definitive diagnosis has been made. These biases are not peculiar to the medical domain but, rather, are manifestations of suboptimal reasoning to which people are susceptible in general. None the less, they can have potentially grave consequences in medical settings, such as erroneous diagnosis or patient mismanagement. No surefire methods exist for eliminating biases in medical decision making, but there is some evidence that the adoption of an evidence-based medicine approach or the incorporation of formal decision analytic tools can improve the quality of doctors' reasoning. Doctors' reasoning is vulnerable to a number of biases that can lead to errors in diagnosis and treatment, but there are positive signs that means for alleviating some of these biases are available.

Information needs of clinical teams: analysis of questions received by the Clinical Informatics Consult Service

OBJECTIVES

To examine the types of questions received by Clinical Informatics Consult Service (CICS) librarians from clinicians on rounds and to analyze the number of clearly differentiated viewpoints provided in response.

DESIGN

Questions were retrieved from an internal database, the CICS Knowledge Base, and analyzed for redundancy by subject analysis. The unique questions were classified into ten categories by subject. Treatment-related questions were analyzed for the number of viewpoints represented in the librarian's response.

RESULTS

The CICS Knowledge Base contained 476 unique questions and 71 redundant questions. Among the unique queries, the top two categories accounted for 67%: treatment (36%) and disease description (31%). Within the treatment-related subset, 138 questions (59%) required representation of more than one viewpoint in the librarian's response.

DISCUSSION

Questions generated by clinicians frequently require comprehensive, critical appraisal of the medical literature, a need that can be filled by librarians trained in such techniques. This study demonstrates that many questions require representation of more than one viewpoint to answer completely. Moreover, the redundancy rate underscores the need for resources like the CICS Knowledge Base. By critically analyzing the medical literature, CICS librarians are providing a time-saving and valuable service for clinicians and charting new territory for librarians.

Successful implementation of spacer treatment guideline for acute asthma

AIMS

To develop and implement an evidence based guideline for the treatment of acute asthma using a metered dose inhaler and spacer combination.

METHODS

Defined strategies were used for the development and implementation of a guideline, assessed by a prospective, descriptive, study using notes review, and patient, nursing, and medical staff telephone contact. The setting was a tertiary referral hospital in Victoria, Australia with 25 000 yearly admissions, and asthma accounting for about 7% of total. The first 200 children and families to use the guideline after its introduction were evaluated.

RESULTS

A total of 191 (95.5%) children were treated according to the guideline. Six (3.0%) children were given nebulisers appropriately based on severity; five (2.5%) were given nebulisers at parental or child choice; and four (2.0 %) who did not have severe asthma, received nebulised treatment inappropriately.

CONCLUSIONS

Successful implementation of a new evidence based guideline can be achieved using specific strategies for promoting the application of research findings in the clinical arena.

Practising evidence-based medicine: the design and implementation of a multidisciplinary team-driven extubation protocol

BACKGROUND

Evidence from recent literature shows that protocol-directed extubation is a useful approach to liberate patients from mechanical ventilation (MV). However, research evidence does not necessarily provide guidance on how to implement changes in individual intensive care units (ICUs). We conducted the present study to determine whether such an evidence-based strategy can be implemented safely and effectively using a multidisciplinary team (MDT) approach.

METHOD

We designed a MDT-driven extubation protocol. Multiple meetings were held to encourage constructive criticism of the design by attending physicians, nurses and respiratory care practitioners (RCPs), in order to define a protocol that was evidence based and acceptable to all clinical staff involved in the process of extubation. It was subsequently implemented and evaluated in our medical/ surgical ICU. Outcomes included response of the MDT to the initiative, duration of MV and stay in the ICU, as well as reintubation rate.

RESULTS

The MDT responded favourably to the design and implementation of this MDT-driven extubation protocol, because it provided greater autonomy to the staff. Outcomes reported in the literature and in the historical control group were compared with those in the protocol group, and indicated similar durations of MV and ICU stay, as well as reintubation rates. No adverse events were documented.

CONCLUSION

An MDT approach to protocol-directed extubation can be implemented safely and effectively in a multidisciplinary ICU. Such an effort is viewed favourably by the entire team and is useful in enhancing team building.

Updating asthma management: the process of change

A strategic approach to changing clinical practice that is managed by a multidisciplinary team is an effective way of implementing new treatment methods or approaches to patient care. The Royal Children's Hospital, Melbourne, Australia, a tertiary pediatric hospital, instituted new Asthma Delivery Device Guidelines in recognition of current evidence that described the benefits of treating acute pediatric asthma with pressurized metered dose inhalers and spacer devices. The working group that coordinated the project attributes the successful change in practice to a multifaceted, multidisciplinary approach, a significant planning stage, initial and ongoing intensive staff and patient/parent education, and accessibility of information.