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PubMed2003

Relating UMLS semantic types and task-based ontology to computer-interpretable clinical practice guidelines.

Medical knowledge in clinical practice guideline (GL) texts is the source of task-based computer-interpretable clinical guideline models (CIGMs). We have used Unified Medical Language System (UMLS) semantic types (STs) to understand the percentage of GL text which belongs to a particular ST. We also use UMLS semantic network together with the CIGM-specific ontology to derive a semantic meaning behind the GL text. In order to achieve this objective, we took nine GL texts from the National Guideline Clearinghouse (NGC) and marked up the text dealing with a particular ST. The STs we took into consideration were restricted taking into account the requirements of a task-based CIGM. We used DARPA Agent Markup Language and Ontology Inference Layer (DAML + OIL) to create the UMLS and CIGM specific semantic network. For the latter, as a bench test, we used the 1999 WHO-International Society of Hypertension Guidelines for the Management of Hypertension. We took into consideration the UMLS STs closest to the clinical tasks. The percentage of the GL text dealing with the ST "Health Care Activity" and subtypes "Laboratory Procedure", "Diagnostic Procedure" and "Therapeutic or Preventive Procedure" were measured. The parts of text belonging to other STs or comments were separated. A mapping of terms belonging to other STs was done to the STs under "HCA" for representation in DAML + OIL. As a result, we found that the three STs under "HCA" were the predominant STs present in the GL text. In cases where the terms of related STs existed, they were mapped into one of the three STs. The DAML + OIL representation was able to describe the hierarchy in task-based CIGMs. To conclude, we understood that the three STs could be used to represent the semantic network of the task-bases CIGMs. We identified some mapping operators which could be used for the mapping of other STs into these.

Humans↗
PubMed2005

From autonomy to accountability: the role of clinical practice guidelines in professional power.

Evidence-based medicine (EBM) aims to address the persistent problem of clinical practice variation with the help of various tools, including standardized practice guidelines. Based on a systematic evaluation of the available scientific evidence, these guidelines offer recommendations for clinicians about details of patient care and clinical decision making. Because clinical practice guidelines specify how health care should be performed, they could be considered a threat to clinical and professional autonomy. Inspired by the theory of countervailing powers, this article explores how clinical practice guidelines have shifted the focus of professional power from autonomy to accountability. Professional organizations develop clinical practice guidelines as a service to their members but do not require strict adherence to the guidelines. Indeed, implementation studies show at best a modest change in clinical behavior. Such non-adherence might render a profession vulnerable, however, when third parties seize upon guidelines and offer financial incentives to keep clinicians accountable for delivering optimal patient care.

Evidence-Based Medicine↗
PubMed2003

Standardized reporting of clinical practice guidelines: a proposal from the Conference on Guideline Standardization.

Despite enormous energies invested in authoring clinical practice guidelines, the quality of individual guidelines varies considerably. The Conference on Guideline Standardization (COGS) was convened in April 2002 to define a standard for guideline reporting that would promote guideline quality and facilitate implementation. Twenty-three people with expertise and experience in guideline development, dissemination, and implementation participated. A list of candidate guideline components was assembled from the Institute of Medicine Provisional Instrument for Assessing Clinical Guidelines, the National Guideline Clearinghouse, the Guideline Elements Model, and other published guideline models. In a 2-stage modified Delphi process, panelists first rated their agreement with the statement that "[Item name] is a necessary component of practice guidelines" on a 9-point scale. An individualized report was prepared for each panelist; the report summarized the panelist's rating for each item and the median and dispersion of rankings of all the panelists. In a second round, panelists separately rated necessity for validity and necessity for practical application. Items achieving a median rank of 7 or higher on either scale, with low disagreement index, were retained as necessary guideline components. Representatives of 22 organizations active in guideline development reviewed the proposed items and commented favorably. Closely related items were consolidated into 18 topics to create the COGS checklist. This checklist provides a framework to support more comprehensive documentation of practice guidelines. Most organizations that are active in guideline development found the component items to be comprehensive and to fit within their existing development methods.

Documentation↗
PubMed2005

Clinical practice guidelines for depression.

The Ministry of Health Clinical Practice Guidelines for Depression were prepared and distributed to all doctors in Singapore in early 2004. This article highlights salient points and discusses pharmacotherapy, psychotherapy and psychoeducation in managing cases of depression. Assessment of suicide risk is elaborated upon, although this was not discussed in the guidelines. The learning points will be enhanced if this article is reviewed together with the Ministry of Health Clinical Practice Guidelines.

Antidepressive Agents↗
PubMed2004

Provider attitudes and beliefs about clinical practice guidelines.

The goals of clinical practice guidelines (CPG) are to improve the process and outcomes of health care, decrease practice variation, and optimize resource utilization. The objectives of this study were to (a) describe overall provider attitudes and beliefs about CPG, and (b) describe provider attitudes and acceptance of two specific spinal cord injury (SCI) CPG. A total of 152 health care providers responsible for implementation of the CPG at participating Veterans Health Administration (VHA) SCI sites responded to a survey (response rate of 35%). Overall, SCI care providers expressed positive attitudes towards CPG, including the two SCI guidelines included in this study. A comparison of responses revealed relatively few areas in which differences existed among SCI facilities and provider groups. Nurses represented the largest provider group participating in this survey and consistently expressed the most positive responses. In particular, nurses were more positive about guidelines, recognized the benefits of the guidelines, and were more willing to support the development of guidelines, compared to other providers in the study. The results of this study suggest that negative attitudes and beliefs about guidelines might be less of an obstacle to guideline implementation in VHA SCI Centers. Nurses are in a position to play a key role in their implementation.

Adult↗
PubMed2005

Clinical practice guideline on the optimal radiotherapeutic management of brain metastases.

BACKGROUND: An evidence-based clinical practice guideline on the optimal radiotherapeutic management of single and multiple brain metastases was developed. METHODS: A systematic review and meta-analysis was performed. The Supportive Care Guidelines Group formulated clinical recommendations based on their interpretation of the evidence. External review of the report by Ontario practitioners was obtained through a mailed survey, and final approval was obtained from Cancer Care Ontario's Practice Guidelines Coordinating Committee (PGCC). RESULTS: One hundred and nine Ontario practitioners responded to the survey (return rate 44%). Ninety-six percent of respondents agreed with the interpretation of the evidence, and 92% agreed that the report should be approved. Minor revisions were made based on feedback from external reviewers and the PGCC. The PGCC approved the final practice guideline report. CONCLUSIONS: For adult patients with a clinical and radiographic diagnosis of brain metastases (single or multiple) we conclude that: surgical excision should be considered for patients with good performance status, minimal or no evidence of extracranial disease, and a surgically accessible single brain metastasis. Postoperative whole brain radiotherapy (WBRT) should be considered to reduce the risk of tumour recurrence for patients who have undergone resection of a single brain metastasis. Radiosurgery boost with WBRT may improve survival in select patients with unresectable single brain metastases. The whole brain should be irradiated for multiple brain metastases. Standard dose-fractionation schedules are 3000 cGy in 10 fractions or 2000 cGy in 5 fractions. Radiosensitizers are not recommended outside research studies. In select patients, radiosurgery may be considered as boost therapy with WBRT to improve local tumour control. Radiosurgery boost may improve survival in select patients. Chemotherapy as primary therapy or chemotherapy with WBRT remains experimental. Supportive care is an option but there is a lack of Level 1 evidence as to which subsets of patients should be managed with supportive care alone. Qualifying statements addressing factors to consider when applying these recommendations are provided in the full report. The rigorous development, external review and approval process has resulted in a practice guideline that is strongly endorsed by Ontario practitioners.

Humans↗
PubMed1999

What is recommended for healthy women during pregnancy? A comparison of seven prenatal clinical practice guideline documents.

BACKGROUND: Several countries have developed clinical practice guidelines for the content of prenatal care. This study examines the consistency of recommendations in clinical practice guidelines describing routine prenatal care. METHODS: The recommendations for low-risk women in seven guideline documents were examined: two from Australia, two from the United States, two from Canada, and one from Germany. The recommendations were listed into the four areas of "general health screening and health promotion during pregnancy," "organization of care," "clinical tests and screening," and "education specific for pregnancy." RESULTS: A total of 69 recommendations were identified within the seven documents, most of which fell within the "clinical tests and screening" domain. Notable differences were identified in the number of recommendations made within the same country. Of the 69 recommendations, only four were included in all seven documents. CONCLUSION: Little consistency was demonstrated within or among countries in terms of the content of their prenatal care guidelines, suggesting a need to reexamine their content and the evidence on which such recommendations are based.

Australia↗
PubMed1997

Clinical practice guidelines in pediatric and newborn medicine: implications for their use in practice.

Clinical practice guidelines are becoming pervasive in pediatrics and newborn medicine. They have spanned a wide range of primary care practice parameters from treating otitis media with effusion, to performing complex surgery for congenital heart disease, and management of respiratory distress syndrome and coordinating discharge from the neonatal intensive care unit. Administrators believe that using clinical practice parameters reduces health care costs, improves quality of care, and limits malpractice liability. Practice parameters and guidelines have grown in use because powerful interests-third-party payers, insurers, and health maintenance organizations, as well as hospital administrators bent on reducing variable costs of care and contracting for capitated care-champion their development, implementation, and monitoring. Economic credentialing of physicians with excessive variances without risk-adjusting for other than average patients is problematic and remains unchecked partly because of the fundamental characteristics of the evolving health care industry in which costs are more easily measured than quality. For highly autonomus physicians this standardization of medical decision making may represent a difficult transition into corporate practice by realigning traditional values of the doctor-patient relationship. However, because guidelines are almost certainly here to stay, pediatricians and neonatologists need to think critically about how their content and method of implementation, monitoring, and modification may influence medical teaching and decision making in the future. If guidelines are introduced primarily as a cost savings or containment tool that ignores the impact on the quality of care and restricts necessary care for infants and children, especially those with chronic illness or who are developmentally at risk, then neonatologists and pediatricians must be quick and determined to challenge the potentially damaging use of practice parameters or guidelines. Furthermore, there are many medicolegal implications of guideline implementation that may not favor physicians and leave to hospitals, insurers, and ultimately the courts decisions regarding evidence-based practice. In this review article, we pay special attention to the guidelines developed in newborn medicine. We discuss why and how guidelines are developed and critically evaluate the available evidence describing potential benefits and drawbacks of guidelines in general. There are legal implications to the implementation of guidelines, and guidelines may increase provider susceptibility to malpractice allegations. Neonatologists and pediatricians should critically analyze the following questions when guidelines are being developed: Are clinical practice parameters the most effective means to reduce the costs of health care, or improve the quality of health care services while reducing the need for and protecting physicians from malpractice suits? Or do clinical practice guidelines more closely resemble an audit system developed by health care organizations, insurers, and others including government-sponsored health care to appease powerful interests-with limited evidence for promise and perhaps potential negative cost, quality, and malpractice liability implications? In pediatric and newborn medicine there is limited evidence that guidelines have achieved the desired goals and further analysis of their process of care and the costs of implementation is warranted.

Health Services↗
PubMed2001

Clinical practice guideline: management of sinusitis.

This clinical practice guideline formulates recommendations for health care providers regarding the diagnosis, evaluation, and treatment of children, ages 1 to 21 years, with uncomplicated acute, subacute, and recurrent acute bacterial sinusitis. It was developed through a comprehensive search and analysis of the medical literature. Expert consensus opinion was used to enhance or formulate recommendations where data were insufficient. A subcommittee, composed of pediatricians with expertise in infectious disease, allergy, epidemiology, family practice, and pediatric practice, supplemented with an otolaryngologist and radiologist, were selected to formulate the practice parameter. Several other groups (including members of the American College of Emergency Physicians, American Academy of Otolaryngology-Head and Neck Surgery, American Academy of Asthma, Allergy and Immunology, as well as numerous national committees and sections of the American Academy of Pediatrics) have reviewed and revised the guideline. Three specific issues were considered: 1) evidence for the efficacy of various antibiotics in children; 2) evidence for the efficacy of various ancillary, nonantibiotic regimens; and 3) the diagnostic accuracy and concordance of clinical symptoms, radiography (and other imaging methods), and sinus aspiration. It is recommended that the diagnosis of acute bacterial sinusitis be based on clinical criteria in children </=6 years of age who present with upper respiratory symptoms that are either persistent or severe. Although controversial, imaging studies may be necessary to confirm a diagnosis of acute bacterial sinusitis in children >6 years of age. Computed tomography scans of the paranasal sinuses should be reserved for children who present with complications of acute bacterial sinusitis or who have very persistent or recurrent infections and are not responsive to medical management. There were only 5 controlled randomized trials and 8 case series on antimicrobial therapy for acute bacterial sinusitis in children. However, these data, plus data derived from the study of adults with acute bacterial sinusitis, support the recommendation that acute bacterial sinusitis be treated with antimicrobial therapy to achieve a more rapid clinical cure. Children with complications or suspected complications of acute bacterial sinusitis should be treated promptly and aggressively with antibiotics and, when appropriate, drainage. Based on controversial and limited data, no recommendations are made about the use of prophylactic antimicrobials, ancillary therapies, or complementary/alternative medicine for prevention and treatment of acute bacterial sinusitis. This clinical practice guideline is not intended as a sole source of guidance in the diagnosis and management of acute bacterial sinusitis in children. It is designed to assist pediatricians by providing an analytic framework for evaluation and treatment. It is not intended to replace clinical judgment or establish a protocol for all patients with this condition.

Acute Disease↗
PubMed1998

Can practice guidelines safely reduce hospital length of stay? Results from a multicenter interventional study.

BACKGROUND: Although practice guidelines about appropriate lengths of stay have been widely promulgated, their effects on patient outcomes are not clear. Our objective was to study the effects of length of stay practice guidelines on patient outcomes. PATIENTS AND METHODS: We performed a prospective, nonrandomized, interventional trial in six geographically distributed hospitals, among consecutively hospitalized "low-risk" patients with total hip replacement, hip fracture, or knee replacement. Case managers provided physicians with patient risk information based on guideline recommendations. We measured length of stay, compliance with recommended guideline length of stay, health status, hospital readmission rates, return to emergency department, return to work and recreation, and patient satisfaction. RESULTS: A total of 560 patients were included in the study. For patients with knee replacement, there was a statistically significant increase in practice guideline compliance (27% baseline versus 53% intervention, P <0.0001) and reduction in length of stay (5.2 days versus 4.6 days, P <0.001) when compared with the baseline period. For hip replacement patients, there similarly was an increase in practice guideline compliance (66% baseline versus 82% intervention, P = 0.01) and reduction in length of stay (5.1 days versus 4.8 days, P = 0.03). Significant reductions in length of stay were not observed for patients recovering after hip fracture despite a significant increase in guideline compliance. There were few statistically significant changes in patient outcomes related to reductions in lengths of stay, including health status, hospital readmission rates, return to emergency department, return to work and recreation, and patient satisfaction. For patients undergoing hip replacement, very short lengths of stay (shorter than the guideline recommendation) were associated with an increased rate of discharging patients to nursing homes and rehabilitation facilities (21% versus 7%, P = 0.01), and hip fracture patients with very short lengths of stay required more visits to the doctor after discharge (56% versus 25%, P = 0.04). CONCLUSION: Reductions in lengths of stay were most often associated with no significant change in patient outcomes. However, very short lengths of stay were associated with increased intensity of care following discharge for patients undergoing hip surgery, indicating possible cost shifting (the cost incurred by transferring patients to rehabilitation facilities may have been greater than had the patients remained in the acute care hospital for an additional 1 or 2 days and been sent directly home). These results emphasize the importance of monitoring the effects of cost containment and other systematic efforts to change patient care at the local level.

Aged↗
PubMed1994

Effectiveness of transfusion audits and practice guidelines.

To seek evidence of the effectiveness of transfusion audits and practice guidelines in improving transfusion practice, transfusion audit literature was reviewed. The inherent limitation of this approach is that investigators are more likely to report success and less likely to report unsuccessful experiences. Measures of success included decrease in units transfused, decrease in inappropriate units transfused, or increase in appropriate transfusion practice. Side benefits of audits included continuous improvement in practice guidelines, improvement in technologists' education, opportunities for consultation, and identification of areas for further research. Most successful programs had a common thread: individual education of the ordering physician by the transfusion medicine physician. In addition, for most successful programs, audits occurred in a timely manner, either before transfusion or during the 24 hours or weekend after the transfusion. In conclusion, several reports provide corroborating evidence to suggest that transfusion audits can improve transfusion practice if performed in a timely manner and if individual education of ordering physicians is provided by transfusion medicine physicians.

Blood Transfusion↗
PubMed1993

A computerized expert system for outcome-validated medical practice guidelines.

Our ongoing efforts in health services research have resulted in outcome-validated medical practice guidelines for common medical conditions. These practice guidelines have been shown to substantially reduce health care costs while maintaining quality of care. We have developed a computerized expert system from our practice guidelines which enhances the ease in which they can be implemented by Utilization Management (UM) Coordinators, physicians, nurses and other health care providers.

Cost Control↗
PubMed2004

[The practice guideline 'Stable angina pectoris' (second revision) from the Dutch College of General Practitioners; a response from the perspective of general practice].

The Dutch College of General Practitioners' (Dutch acronym: NHG) practice guideline 'Stable angina pectoris' (second revision) provides clear guidelines for the diagnosis and treatment of patients who experience chest pains as a result of angina pectoris, especially if coronary artery disease is the underlying cause of the complaints. The practice guideline clearly indicates for which complaints the general practitioner should suspect angina pectoris and which information from the anamnesis, family history and risk factors can contribute to distinguishing between stable and unstable angina pectoris. However, the physical examination should not be omitted because this can provide important indications for coronary or pulmonary dysfunction. According to the practice guideline, the treatment policy is determined by the estimated risk of significant coronary artery disease. However, additional tests can be useful even in the case of a small risk, as these can reassure patients. The indications and contraindications for medicinal substances are clearly presented.

Angina Pectoris↗
PubMed2000

Implementing clinical practice guidelines: a community-based audit of breast cancer treatment. Australian Capital Territory and South Eastern New South Wales Breast Cancer Treatment Group.

OBJECTIVE: To improve breast cancer management by facilitating implementation of treatment guidelines. DESIGN: A prospective, longitudinal study (developed by clinicians and consumers) of all patients with newly diagnosed breast cancer. Four locally agreed breast cancer management guidelines were established (based on 1995 National Health and Medical Research Council guidelines) as practice indicators. SETTING: Breast cancer treatment facilities and medical practices in the Australian Capital Territory and South Eastern New South Wales, May 1997 to July 1998. MAIN OUTCOME MEASURES: Actual treatment received by patients for primary breast cancer during the study period. RESULTS: During the 14 months of the study, 19 clinicians registered 221 new patients with a proven diagnosis of breast cancer. Of 191 women with localised invasive breast cancer, 112 (59%) had tumours 2 cm or less in diameter. Axillary surgery in 173 (91%) of these women showed 107 (56%) had no axillary lymph node involvement. Of 87 women treated with breast-conserving surgery for locally invasive cancer, 85 (98%) also received postoperative radiotherapy. Some form of systemic adjuvant therapy was indicated in 99 women (axillary nodes positive or tumours > 2 cm diameter) and this treatment was received by 95 (96%). All 27 women aged under 50 years with node-positive disease received adjuvant chemotherapy. CONCLUSIONS: Enhancing uptake of breast cancer management guidelines is feasible at a regional level with an audit program and broad support among clinicians and consumers.

Adult↗
PubMed1999

Making clinical practice guidelines work: the experience of one home healthcare agency.

Almost 20 years have passed since clinical practice guidelines were introduced into the healthcare system and they have permeated into every area of clinical practice. Originally clinical practice guidelines were regarded, by healthcare chief executive officers, as "the answer" to the need to reduce inappropriate or unnecessary variation in clinical practice. Between 1990 and 1996, the U.S. Agency for Health Care Policy and Research introduced 19 practice guidelines in an effort to support evidence-based methods to assess medical treatments and to set high standards for the development of guidelines. This article will explore the development and/or adoption and clinical application of guidelines into practice.

Chronic Disease↗
PubMed2001

Practice guidelines: useful and "participative" method? Survey of Italian physicians by professional setting.

BACKGROUND: Professional setting might be a key determinant of physicians' attitudes toward practice guidelines, influencing the effect of their implementation. Because no previous surveys have specifically considered this aspect, we evaluated the perceived role and usefulness of guidelines, as well as barriers to and facilitators of their implementation, for hospital, primary care, and nonpracticing clinicians. METHODS: A 43-item self-administered questionnaire was sent to all National Health Service physicians in the province of Modena, Italy (593 primary care physicians, 1049 hospital physicians, and 149 nonpracticing clinicians), and 1199 (66.9%) responded. Opinions and attitudes were assessed using 5-point ordinal scales and an attitude measurement scale. Results were evaluated overall and by professional setting, sex, age, year of graduation, and academic background. RESULTS: Practice guidelines were generally perceived to be less useful than other sources of medical information (eg, personal experience, conferences, colleagues, articles, the Internet, and textbooks [pharmaceutical representatives were the exception]). Most physicians thought that guidelines are developed for cost-containment reasons and expressed concerns about their limited applicability to individual patients and local settings. Most respondents did not favor the involvement of health professionals other than physicians in guideline development and use and preferred nonmonetary incentives for their implementation. Answers to individual items and attitude scores varied significantly across professional settings. Primary care physicians showed, in general, the least favorable attitudes toward practice guidelines, toward nonphysicians participating in guideline development and use, and toward incentives for guideline users. CONCLUSIONS: Physicians perceived practice guidelines as externally imposed and cost-containment tools rather than as decision-supporting tools. Regularly monitoring attitudes toward practice guidelines can be helpful to evaluate potential barriers to their adoption.

Attitude of Health Personnel↗
PubMed1998

How to use practice guidelines in the intensive care unit: Diagnosis and management of unstable angina.

OBJECTIVE: Practice guidelines are often based on expert opinion, and are sometimes based on research evidence, but are usually a mix of both. The goal of this article is to aid in the evaluation of the validity of practice guidelines. DATA SYNTHESIS: The Agency for Health Care Policy and Research Practice Guideline on Management of Unstable Angina and other relevant primary and synthetic research. METHODS: Critical appraisal of guidelines requires understanding how guideline developers identified, appraised, and summarized the evidence, and how they chose the values reflected in their recommendations. To determine whether guidelines are applicable in our practice, we look for clear and concise recommendations about specific populations, describing common options linked to clinically important outcomes. Guidelines must be considered in light of local skills, culture, and resources, and need to be individualized to different patients and settings. CONCLUSIONS: As better evidence and new clinical insights emerge, guidelines require updating. The ultimate value of a guideline is determined by evaluating its effect on process of care, resource utilization, and most importantly, patient outcomes.

Angina, Unstable↗