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The Consensus Development Program. Detecting changes in medical practice following a consensus conference on the treatment of prostate cancer.

The treatment of prostate cancer was reviewed at a U.S. National Institutes of Health Consensus Development Conference in June 1987. Data from the U.S. National Cancer Institute's Surveillance, Epidemiology, and End Results tumor registries were analyzed and showed that the proportion of eligible prostate cancer patients receiving the recommended therapies did not increase at a faster rate after the conference than before.

Aged↗

The technology assessment and practice guidelines forum. A modified group judgment method.

This article describes a new group-judgment process, modified from the consensus development approach of the U.S. National Institutes of Health. It is called the "forum" method, a shorthand term for "technology assessment and practice guidelines forum." This approach is aimed at (a) describing the current state of knowledge of the technology under study; (b) developing practice guidelines for the use of the technology; and (c) providing information for insurers, consumers, policymakers, and others. A pilot study was conducted focusing on total parenteral nutrition. The validity of the process and of the recommendations and their acceptability were evaluated in a survey of participants and a selected group of nonparticipants. Based on the survey results, the forum method appears to be a valuable method for assessing technologies, defining their clinical role, and developing practice guidelines.

Consensus Development Conferences, NIH as Topic↗

Bringing the patient back in. Guidelines, practice variations, and the social context of medical practice.

We challenge assumptions that have guided much research and policy aimed at understanding and reducing medical practice variation. Paramount is the focus on doctors as the cause of variation to the neglect of other possible influences. Some research literature suggests that patients, families, and the community context of practice may also influence treatment decisions. Failure to question present assumptions, despite weak evidence in support of them, may account for inability to explain persistent practice variation, develop appropriate implementable guidelines, or anticipate the effect on treatment decisions of greater patient involvement. In this paper, we discuss the weak response to the NIH Consensus Conference on early stage breast cancer because it may have reflected these problems. We urge a more complex and more empirical approach in explaining treatment choice and guidelines sensitive to the potential for value differences.

Attitude to Health↗

Choosing between endocrine therapy and chemotherapy--or is there a role for combination therapy?

Results from many randomized trials of adjuvant breast cancer therapy have been presented in several overviews and at subsequent meetings. This manuscript reviews the current status of both chemo- and endocrine therapy and the prospects for combination therapy, as summarized at the NIH and St Gallen Consensus meetings. In conclusion, treatment selection should be based primarily on endocrine responsiveness; however, a collaborative approach involving the development of new agents and investigation of their optimal integration into therapy programs will ensure progress and improved patient care.

Adult↗

Comparison of clinical treatment decisions with US National Institutes of Health consensus indications for lower third molar removal.

Treatment decisions about lower third molar surgery have important clinical and cost implications. Although indications for surgery have been the subject of a National Institutes of Health (NIH) consensus conference at which several unambiguous criteria were agreed, no prospective investigations have been carried out to compare clinic treatment decisions with these consensus criteria. Treatment decisions made by six Hospital Service oral surgeons were therefore evaluated for 72 consecutive patients (28 men, 44 women) aged 15-44 years (mean age 25 years), referred for lower third molar assessment. The presence of local disease; recurrent pericoronitis; caries not amenable to restorative measures; follicular cyst formation; internal/external resorption and periodontal disease was recorded by an independent observer immediately after treatment planning had been completed. Of the 139 third molars present, 55 were unerupted, 79 partially erupted and 5 fully erupted. Thirty patients had been scheduled for surgery under general anaesthesia (GA), 36 under local anaesthesia and six patients had not been scheduled for surgery. A total of 42 teeth, according to NIH consensus criteria, had no indications for removal, of which 27 had been scheduled for surgery. These excluded disease-free contralateral teeth that had been scheduled for removal under GA. When a single episode of pericoronitis was excluded as a valid indication, 39 teeth did not meet criteria for removal but had been scheduled for surgery. It was concluded that two-thirds of lower third molars not meeting NIH consensus criteria for surgery had been scheduled for removal. The reasons for this, which may include inappropriate criteria, require further research.

Adolescent↗

Management of viral hepatitis C.

The hepatitis C virus was first identified in 1989. It causes chronic hepatitis, cirrhosis and hepatocellular carcinoma. Global anti-HCV prevalence is 1-3%. Contaminated blood product, dirty needles and instruments, and injection drug use are the main parenteral routes of transmission. Cultural practices, such as acupuncture, tattoo, body piercing and scarring, also play a role. Universal precaution is the mainstay for prevention before vaccine is developed. Therapy for chronic hepatitis C (CHC) with interferon (IFN) is not satisfactory. Non-response and early relapse reduce sustained response (SR). In 1997, National Institute of Health consensus recommended IFN therapy only for selected patients with compensated CHC, raised ALT and moderate to severe histologic disease activity; 15-20% SR is expected. Major advances in CHC therapy is combination therapy. Ribavirin in combination with IFN significantly increases SR to 30-40%. Even patients with high viral load, genotype 1, significant fibrosis or cirrhosis respond better. EASL and APASL Consensus in 1999 recommended IFN-ribavirin combination as the first line therapy. Recent data on pegylated IFN showed very encouraging results. Combined with ribavirin, 60% SR was achieved. It benefits patients with severe bridging necrosis and also cirrhosis. However, 23-27% of patients receiving combination therapy with either IFN type, experienced adverse events and required therapy discontinuation. Many important issues remained unsolved. Therapy for children, the elderly, patients with comorbidity and extra-hepatic syndromes need to be addressed. Therapy is too expensive and not affordable to the majority of patients in developing countries.

Consensus Development Conferences, NIH as Topic↗