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An evidence-based approach to prescribing NSAIDs in musculoskeletal disease: a Canadian consensus. Canadian NSAID Consensus Participants.

OBJECTIVE: To make recommendations for the long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs) in primary care practice, particularly for patients at high risk for NSAID-induced complications. OPTIONS: The use of misoprostol to prevent gastrointestinal ulceration and other unwanted NSAIDs effects was considered. The role of cyclooxygenase-2 (COX-2) versus COX-1 inhibiting agents was also examined. OUTCOMES: Reduction of complications associated with long-term use of NSAIDs. EVIDENCE: Evidence was gathered in late 1995 from published research studies and reviews. Position papers were prepared by faculty and advisory board members and discussed at the Canadian NSAID Consensus Symposium in Cambridge, Ont., Jan. 26 and 27, 1996. VALUES: Recommendations were based on randomized, placebo-controlled clinical trials (level I evidence) and case-control studies (level II evidence) involving NSAID use when such evidence was available. When the scientific literature was incomplete or inconsistent in a particular area, recommendations reflect the consensus of the participants at the symposium (level III evidence). Physicians were recruited from across Canada for their expertise in rheumatology, gastroenterology, epidemiology, gerontology, family practice, and clinical and basic scientific research. BENEFITS, HARMS AND COSTS: Although a reduction in complications due to inappropriate NSAID use should reduce costs of additional investigations, admissions to hospital and time lost from work, definitive cost analysis studies are not yet available. RECOMMENDATIONS: Currently, no NSAID is available that lacks potential for serious toxicity; therefore, long-term use of NSAIDs should be avoided whenever possible, particularly in high-risk patients (e.g., those who are elderly, suffer from hypertension, congestive heart failure, renal or hepatic impairment or volume depletion, take certain concomitant medications or have a history of peptic ulcer disease) (level I evidence). If NSAIDs are to be used in patients with gastric or nephrotoxic risk factors, the lowest effective dose of NSAID should be used (level III evidence); NSAIDs that are weak COX-1 inhibitors may be preferred (level II evidence). In addition, concomitant administration of misoprostol is recommended in patients at increased risk for upper gastrointestinal complications (level I evidence). However, the clinical judgement of the practising clinician must always be part of any therapeutic decision. VALIDATION: These recommendations are based on the consensus of Canadian experts in rheumatology, gastroenterology and epidemiology, and have been subjected to external peer review.

Anti-Inflammatory Agents, Non-Steroidal↗

[National consensus for management of community acquired pneumonia in adults].

Community acquired pneumonia (CAP) is an acute respiratory infection that affects pulmonary parenchyma, and is caused by community acquired microorganisms. In Chile, pneumonia represents the main cause of death due to infectious diseases and is the third specific cause of mortality in adults. In 1999, an experts committee in representation of "Sociedad Chilena de Enfermedades Respiratorias", presented the first National Guidelines for the Treatment of Adult Community Acquired Pneumonia, mainly based in foreign experience and documents, and adapted it to our National Health System Organization. During the last decade, impressive epidemiological and technological changes have occurred, making the update of guidelines for treatment of NAC by several international scientific societies, necessary. These changes include: new respiratory pathogens that are being identified in CAP and affect adult patients (Mycoplasma pneumoniae, Chlamydia pneumoniae, Legionella pneumophila); the increasing senescent adult population that carries multiple co-morbidities; the emergence of antimicrobial resistance among respiratory pathogens associated to massive antibiotic prescription; the development by the pharmaceutical industry of new drugs that are effective for pneumonia treatment (macrolides, ketolides and respiratory fluorquinolones); and the development of new diagnostic techniques for detection of antigens, antibodies, and bacterial DNA by molecular biology, useful in respiratory infections. Based on these antecedents, an Advisory Committee of "Sociedad Chilena de Enfermedades Respiratorias" and "Sociedad Chilena de Infectología" has reviewed the national and international evidence about CAP management in adults in order to update clinical recommendations for our country.

Acute Disease↗

A report with consensus statements of the International Society of Nephrology 2004 Consensus Workshop on Prevention of Progression of Renal Disease, Hong Kong, June 29, 2004.

This report summarizes the discussions of the International Society of Nephrology (ISN) 2004 Consensus Workshop on Prevention of Progression of Renal Disease, which was held in Hong Kong on June 29, 2004. Three key areas were discussed during the workshop: (1) screening for chronic kidney disease; (2) evaluation and estimating progression of chronic kidney disease; and (3) measures to prevent the progression of chronic kidney disease. Fifteen consensus statements were made in these three areas, as endorsed by the participants of the workshop. The ISN can make use of and take reference to these statements in formulating its policy for tackling chronic kidney disease, a disease with significant global impact.

Hong Kong↗

Consensus conference. Rehabilitation of persons with traumatic brain injury. NIH Consensus Development Panel on Rehabilitation of Persons With Traumatic Brain Injury.

OBJECTIVE: To provide biomedical researchers and clinicians with information regarding and recommendations for effective rehabilitation measures for persons who have experienced a traumatic brain injury (TBI). PARTICIPANTS: A nonfederal, nonadvocate, 16-member panel representing the fields of neuropsychology, neurology, psychiatry, behavioral medicine, family medicine, pediatrics, physical medicine and rehabilitation, speech and hearing, occupational therapy, nursing, epidemiology, biostatistics, and the public. In addition, 31 experts from these same fields presented data to the panel and a conference audience of 883 members of the public. The conference consisted of (1) presentations by investigators working in areas relevant to the consensus questions during a 2-day public session; (2) questions and statements from conference attendees during open discussions that were part of the public session; and (3) closed deliberations by the panel during the remainder of the second day and part of the third. Primary sponsors of the conference were the National Institute of Child Health and Human Development and the National Institutes of Health Office of Medical Applications of Research. EVIDENCE: The literature was searched through MEDLINE for articles from January 1988 through August 1998 and an extensive bibliography of 2563 references was provided to the panel and the conference audience. Experts prepared abstracts for their conference presentations with relevant citations from the literature. The panel prepared a compendium of evidence, including a patient contribution and reports from federal agencies. Scientific evidence was given precedence over clinical anecdotal experience. CONSENSUS PROCESS: The panel, answering predefined questions, developed their conclusions based on the scientific evidence presented during the open forum (October 26-28, 1998) and in the scientific literature. The panel composed a draft statement that was read in its entirety and circulated to the experts and the audience for comment. Thereafter, the panel resolved conflicting recommendations and released a revised statement at the end of the conference. The panel finalized the revisions within a few weeks after the conference. The draft statement was made available on the Internet immediately following its release at the conference and was updated with the panel's final revisions. CONCLUSIONS: Traumatic brain injury results principally from vehicular incidents, falls, acts of violence, and sports injuries and is more than twice as likely to occur in men as in women. The estimated incidence rate is 100 per 100000 persons, with 52000 annual deaths. The highest incidence is among persons aged 15 to 24 years and 75 years or older, with a less striking peak in incidence in children aged 5 years or younger. Since TBI may result in lifelong impairment of physical, cognitive, and psychosocial functioning and prevalence is estimated at 2.5 million to 6.5 million individuals, TBI is a disorder of major public health significance. Mild TBI is significantly underdiagnosed and the likely societal burden is therefore even greater. Given the large toll of TBI and absence of a cure, prevention is of paramount importance. However, the focus of this conference was the evaluation of rehabilitative measures for the cognitive and behavioral consequences of TBI. Evidence supports the use of certain cognitive and behavioral rehabilitation strategies for individuals with TBI. This research needs to be replicated in larger, more definitive clinical trials and, thus, funding for research on TBI needs to be increased.

Adolescent↗

Therapy of hepatitis C: consensus interferon trials. Consensus Interferon Study Group.

Chronic hepatitis C is an insidious disease associated with significant morbidity and mortality. Currently, the only approved therapies for chronic hepatitis C are the alpha interferons. Consensus interferon (CIFN) is a nonnatural, synthetic, recombinant type I interferon derived by assigning the most commonly observed amino acid in each position of several alpha interferon nonallelic subtypes to generate a consensus sequence. The efficacy and safety of CIFN in the treatment of chronic hepatitis C were assessed in two large phase 3 trials. The first trial was a multicenter, randomized, double-blind, controlled study of 704 patients who were treated with one of two doses of CIFN (3 microg and 9 microg) or interferon alfa-2b (3 million units [MU]) weekly for 24 weeks and then observed for an additional 24 weeks. Treatment with CIFN at a dose of 9 microg was safe and effective, with serum alanine aminotransferase (ALT) and hepatitis C virus (HCV) RNA sustained response rates of 20% and 12%, respectively. Responses to 3 MU interferon alfa-2b were comparable to 9 microg CIFN. The response rates were lower in the 3-microg CIFN cohort. At the end of the treatment and posttreatment observation periods, an undetectable serum HCV RNA was a better predictor of a normal ALT than the converse. Serum samples from early time points were available for HCV RNA quantitation from 27 of the 28 patients who experienced a sustained response with 9 microg CIFN. Of these, 13 patients (48%) had undetectable HCV RNA at 2 weeks, 21 patients (78%) at 4 weeks, and 26 patients (96%) at 12 weeks. CIFN (9 microg) induced a significantly greater reduction in the mean serum HCV RNA concentration than interferon alfa-2b during treatment (P < .01). In patients with high viral titers (> or = 4.75 x 10(6) copies/mL), the HCV RNA sustained response rate in patients treated with CIFN (9 microg) and interferon alfa-2b was 7% and 0%, respectively (P = .03). In patients infected with HCV genotype 1, the HCV RNA end-of-treatment (24% vs. 15%; P = .04) and sustained (8% vs. 4%; P = not significant) response rates were greater in patients treated with CIFN (9 microg) than with interferon alfa-2b (3 MU). In a subsequent multicenter trial, a higher dose of CIFN (15 microg) was reinstituted in patients who either had relapsed or were nonresponders to prior CIFN or interferon alfa-2b therapy. Patients were randomized to receive 24 or 48 weeks of retreatment followed by 24 weeks of observation. Patients who had relapsed after prior interferon therapy were more likely to have a serum HCV RNA end-of-retreatment and sustained response than patients who were nonresponders to prior interferon therapy. After patients from the 3-microg CIFN cohort were excluded, the HCV RNA sustained response rates were 28% in relapsers and 5% in nonresponders, respectively, in the 24-week retreatment cohort and 58% and 13%, respectively, in the 48-week retreatment cohort. The administration of 9 or 15 microg CIFN was well tolerated, and the adverse effects were similar to those for interferon alfa-2b. These data demonstrate that CIFN at a dose of 9 microg is effective initial therapy for patients with chronic hepatitis C, and that retreatment with a higher CIFN dose of 15 microg for 48 weeks provides meaningful responses in both relapsers and nonresponders.

Antiviral Agents↗

Consensus report on quality control of quantitative measurements of renal function obtained from the renogram: International Consensus Committee from the Scientific Committee of Radionuclides in Nephrourology.

Among all the physiological indices that can be quantified using renography, measurement of renal function is the most basic. These measurements are used to make critical clinical management decisions and, as such, their reliability needs to be quality assured. This article seeks to address each aspect of the renography procedure, with particular emphasis on the effect on measurement of relative renal function. Estimation of individual kidney function is mentioned, but only briefly. A consensus approach was adopted, overseen, and directed by a chairman appointed by the Scientific Committee of the International Radionuclides in Nephro-Urology Group. The chairman selected the panel of experts from eight different countries based on their practical experience in the field. Where evidence exists to support the various recommendations it is given. Otherwise, the stated guidance represents the considered opinion of a body of experts, based on long experience and unpublished data. Some necessary compromises were made to account for the fact that renography is seldom performed solely with the purpose of measuring relative renal function. The technicalities of renography have always been a source of debate in nuclear medicine, which is reflected by the fact that a consensus could simply not be reached on a small number of issues. The structure of the report ensures that these are clearly indicated. This should serve to highlight gaps in our current knowledge, thus helping to direct future research. It is envisaged that the recommendations will be revised on a 2-year cycle to ensure that they remain up to date. An "open" process will be used to encourage participation and ownership. It is hoped that promotion of these guidelines, suitably complemented by audit processes, will raise standards in the practice of gamma camera renography.

Adult↗

The yeast mitochondrial transport proteins: new sequences and consensus residues, lack of direct relation between consensus residues and transmembrane helices, expression patterns of the transport protein genes, and protein-protein interactions with other proteins.

Mitochondrial transport proteins (MTP) typically are homodimeric with a 30-kDa subunit with six transmembrane helices. The subunit possesses a sequence motif highly similar to Pro X Asp/Glu X X Lys/Arg X Arg within each of its three similar 10-kDa segments. Four (YNL083W, YFR045W, YPR021C, YDR470C) of the 35 yeast (S. cerevisiae) MTP genes were resequenced since the masses of their proteins deviate significantly from the typical 30 kDa. We now find these four proteins to have 545, 285, 902, and 502 residues, respectively. Together with only four other MTPs, the sequences of YPR021C and YDR470C show substitutions of some of the five residues that are absolutely conserved among the 12 MTPs with identified transport function and 17 other MTPs. We do now find these five consensus residues also in the new sequences of YNL083W and YFR045W. Additional analyses of the 35 yeast MTPs show that the location of transmembrane helix sequences do not correlate with the general consensus residues of the MTP family; protein segments connecting the six transmembrane helices and facing the intermembrane space are not uniformly short (about 20 residues) or long (about 40 residues) when facing the matrix; most MTPs have at least one transmembrane helix for which the sum of the negative hydropathy values of all residues yields a very small negative value, suggesting a membrane location bordering polar faces of other transmembrane helices or a non-transmembrane location. The extra residues of the three large MTPs are hydrophilic and at the N-terminal. The 200-residue N-terminal segment of YNL083W has four putative Ca2+-binding sites. The 500-residue N-terminal segment of YPR021C shows sequence similarity to enzymes of nucleic acid metabolism. cDNA microarray data show that YNL083W is expressed solely during sporulation, while the expressions of YFR045W, YPR021C, and YDR470C are induced by various stress situations. These results also show that the 35 MTP genes are expressed under a rather diverse set of metabolic conditions that may help identify the function of the proteins. Interestingly, yeast two-hybrid screens, that will also be useful in identifying the function of MTPs, indicate that MIR1, AAC3, YOR100C, and YPR011C do interact with non-MTPs.

Amino Acid Sequence↗

Consensus statement for the management of chronic pelvic pain and endometriosis: proceedings of an expert-panel consensus process.

OBJECTIVE: To develop recommendations for the medical and surgical care of women who present with chronic pelvic pain (CPP) and are likely to have endometriosis as the underlying cause. DESIGN: An expert panel comprised of practicing gynecologists from throughout the United States and experts in consensus guideline development was convened. After completion of a structured literature search and creation of draft algorithms by an executive committee, the expert panel of >50 practicing gynecologists met for a 2-day consensus conference during which the clinical recommendations and algorithms were reviewed, refined, and then ratified by unanimous or near-unanimous votes. PATIENT(S): Women presenting with CPP who are likely to have endometriosis as the underlying cause. MAIN OUTCOME MEASURE(S): None. CONCLUSION(S): Chronic pelvic pain frequently occurs secondary to nongynecologic conditions that must be considered in the evaluation of affected women. For women in whom endometriosis is the suspected cause of the pain, laparoscopic confirmation of the diagnosis is unnecessary, and a trial of medical therapy, including second-line therapies such as danazol, GnRH agonists, and progestins, is justified provided that there are no other indications for surgery such as the presence of a suspicious adnexal mass. When surgery is necessary, laparoscopic approaches seem to offer comparable clinical outcomes to those performed via laparotomy, but with reduced morbidity. The balance of evidence supports the use of adjuvant postoperative medical therapy after conservative surgery for CPP. There is some evidence that adjuvant presacral neurectomy adds benefit for midline pain, but currently, there is inadequate evidence to support the use of uterosacral nerve ablation or uterine suspension. Hysterectomy alone has undocumented value in the surgical management of women with endometriosis-associated CPP.

Algorithms↗

Versailles minimal dataset for diagnosis of ALS: a distillate of the 2nd Consensus Conference on accelerating the diagnosis of ALS. Versailles 2nd Consensus Conference participants.

The 2nd Consensus Conference (Versailles) recommended that an ALS knowledge-base for initial healthcare providers, diagnosing neurologists and confirming neurologists should be defined to include a simplified version of diagnostic criteria less formal than the World Federation of Neurology El Escorial Revisted Criteria ('ALS diagnosis - An algorithm'), a set of rules concerning red flags which should increase the suspicion of ALS as the diagnosis and minimize the time between suspicion and referral for confirmation of diagnosis ('ALS axioms of referral'), as well as a site of symptom onset-specific checklist of minimal clinical examination, neuroimaging, electrodiagnostic, pulmonary function and laboratory test information required to confirm the diagnosis of ALS ('Versailles minimal dataset'). Although introductory discussions addressed the advantages and disadvantages of earlier diagnosis, false-positive or false-negative diagnosis, the frequency of follow-up and what potential biological markers to be followed, these issues will have to be further evaluated at future consensus conferences.

Diagnosis, Differential↗

Consensus shapes: an alternative to the Sankoff algorithm for RNA consensus structure prediction.

MOTIVATION: The well-known Sankoff algorithm for simultaneous RNA sequence alignment and folding is currently considered an ideal, but computationally over-expensive method. Available tools implement this algorithm under various pragmatic restrictions. They are still expensive to use, and it is difficult to judge if the moderate quality of results is because of the underlying model or to its imperfect implementation. RESULTS: We propose to redefine the consensus structure prediction problem in a way that does not imply a multiple sequence alignment step. For a family of RNA sequences, our method explicitly and independently enumerates the near-optimal abstract shape space, and predicts as the consensus an abstract shape common to all sequences. For each sequence, it delivers the thermodynamically best structure which has this common shape. Since the shape space is much smaller than the structure space, and identification of common shapes can be done in linear time (in the number of shapes considered), the method is essentially linear in the number of sequences. Our evaluation shows that the new method compares favorably with available alternatives. AVAILABILITY: The new method has been implemented in the program RNAcast and is available on the Bielefeld Bioinformatics Server. CONTACT: jreeder@TechFak.Uni-Bielefeld.DE, robert@TechFak.Uni-Bielefeld.DE SUPPLEMENTARY INFORMATION: Available at http://bibiserv.techfak.uni-bielefeld.de/rnacast/supplementary.html

Algorithms↗

French-Belgian Consensus Conference on Adult Gastro-oesophageal Reflux Disease 'Diagnosis and Treatment': report of a meeting held in Paris, France, on 21-22 January 1999. The Jury of the consensus conference.

This consensus conference followed the methodological rules developed by the French Agence Nationale d'Accreditation et d'Evaluation en Santé (ANAES). Briefly, this required an organizing committee, a working group whose task was to make a comprehensive critical review of the literature before the conference was held, a panel of experts and a jury. All the manuscripts were published in a special issue of Gastoentérologie Clinique et Biologique [1999; 23(suppl 1)]. The conference included (a) a public session with presentations by experts working in areas relevant to the consensus questions, (b) questions and statements from conference attendees, and (c) closed deliberations by the jury followed by the drafting of conclusions and recommendations. This paper describes those conclusions and recommendations.

Adult↗

Commentary: a consensus about "consensus"?

Authors develop the notion of "consensus," which is at the heart of the "ethical consensus method" proposed by Martin, and the three approaches from which it is drawn.

Aged↗

Perceptions of a fluid consensus: uniqueness bias, false consensus, false polarization, and pluralistic ignorance in a water conservation crisis.

A 5-day field study (N = 415) during and right after a shower ban demonstrated multifaceted social projection and the tendency to draw personality inferences from simple behavior in a time of drastic consensus change. Bathers thought showering was more prevalent than did non-bathers (false consensus) and respondents consistently underestimated the prevalence of the desirable and common behavior--be it not showering during the shower ban or showering after the ban (uniqueness bias). Participants thought that bathers and non-bathers during the ban differed greatly in their general concern for the community, but self-reports demonstrated that this gap was illusory (false polarization). Finally, bathers thought other bathers cared less than they did, whereas non-bathers thought other non-bathers cared more than they did (pluralistic ignorance). The study captures the many biases at work in social perception in a time of social change.

Baths↗

[Helicobacter pylori infection. The Spanish consensus report. The Spanish Consensus Conference Group].

OBJECTIVES: taking into account the small amount of infection eradication treatments carried out in our country and some characteristics arising from the resistances to some antibiotics, the Spanish Club for the Study of Helicobacter pylori decided to organize a Spanish Consensus Conference to clarify the use of the different infection diagnostic tests, to establish the exact indications of its diagnosis and treatment, to recommend the best treatment guidelines for our country and to promote the use of eradication treatments in adequate indications. DESIGN: on April 23, 1999 in Madrid, physicians who were experts in infection by Helicobacter pylori representing the different Scientific Societies of our country were gathered. Prior to this, three work areas, diagnosis, indications and treatments, were created and the participants freely joined them. One month before the conference, all of the participants were sent the questions which would be debated. An 80% consensus level, always based on scientific evidence, was required for a recommendation. In the first session, a meeting by work areas was held and in a second session, all of the recommendations were voted on in the meeting of the representatives. CONCLUSIONS: the conference recommends the eradication of the infection in all the gastric or duodenal ulcers, in the erosive duodenitis, in the MALT lymphomas and in gastrectomized patients due to gastric cancer with residual stomach. In the de novo diagnoses of gastroduodenal ulcer, the rapid test of urease is recommended, and a histological study is recommended only if it is negative. In the case of a history of ulcers and also to know the eradication treatment result, the C13 urea breath test is recommended. The culture is reserved for primary treatment and rescue treatment failures so as to select the adequate antibiotic. The primary treatment regimes recommended for our country mean the combination of amoxicillin, clarithromycin and any proton pump inhibitor or with Ranitidine bismuth citrate. If there is allergy to penicillin, amoxycillin will be substituted by metronidazol.

Amoxicillin↗

Developing guidelines for allocating catheterization laboratory resources: lessons from an Ontario Consensus Panel. Consensus Panel on Cardiac Catheterization Laboratory Services in Ontario and the Steering Committee of the Cardiac Care Network of Ontario.

In March 1997, the Ontario Ministry of Health asked the Cardiac Care Network of Ontario (CCN) to develop guidelines for allocating cardiac catheterization laboratory resources. A consensus panel of providers and planners used findings from the literature and expert opinion to recommend guidelines for the operation of cardiac catheterization laboratories and criteria to be considered when allocating additional cardiac catheterization laboratory resources. This article summarizes the consensus panel's major findings that may be of value to other jurisdictions, including need identification, clinical practice, system issues, location criteria and cost considerations. The article reflects the advice given to the Ontario Ministry of Health by the CCN and is not an official position paper of the Canadian Cardiovascular Society.

Angioplasty, Balloon, Coronary↗

Disease activity in systemic lupus erythematosus: report of the Consensus Study Group of the European Workshop for Rheumatology Research. II. Identification of the variables indicative of disease activity and their use in the development of an activity score. The European Consensus Study Group for Disease Activity in SLE.

A European Consensus Group study, involving 29 centres from 14 countries, was performed in order to reach agreement on the definition of disease activity in systemic lupus erythematosus (SLE) and to construct a new disease index. Data on 704 lupus patients were collected and analysed, using univariate and multivariate statistical procedures, to select those clinical and laboratory features of the disorder which best correlate with the global assessment of disease activity assigned to the patients by the physician of each participating centre. A combination of 15 clinical and laboratory variables was shown to be the best predictor of disease activity in SLE. A European Consensus Lupus Activity Measurement (ECLAM) was then formulated. This index included the 15 selected variables, weighted (with some adjustments) according to their respective regression coefficients in the multivariate model. ECLAM appears to be an effective instrument for scoring patients with different degrees of disease activity. This is the first SLE disease activity index based on data from a very large number of lupus patients followed at a large number of lupus centres in different countries. It might therefore very well serve as a standardised measure for future European clinical studies. Final assessment of the validity, reliability and sensitivity of this index is now underway.

Europe↗

Consensus statement on cereals, fibre and colorectal and breast cancers. Proceedings of the European Cancer Prevention consensus meeting. Santa Margheritia, Italy, 2-5 October 1997.

The consensus meeting on 'Cereals, fibre and colorectal and breast cancers' was attended by 17 dietary and cancer experts; a further eight who could not attend the discussions were deemed corresponding participants and gave their views by post and telephone. The agreed consensus statement is given here.

Breast Neoplasms↗