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Triglyceride, high density lipoprotein, and coronary heart disease.

The National Institutes of Health Consensus Development Conference on Triglyceride, High Density Lipoprotein, and Coronary Heart Disease brought together experts in lipid metabolism, epidemiologists, and clinicians as well as other health care professionals and the public to address the following questions: (1) is the relationship of high triglyceride and/or low HDL cholesterol with coronary heart disease causal? (2) Will reduction of high triglyceride and/or elevation of HDL cholesterol help prevent coronary heart disease? (3) Under what circumstances should triglycerides and HDL cholesterol be measured? (4) Under what circumstances should active intervention to lower triglyceride and/or raise HDL cholesterol be considered in high risk individuals and the general population? (5) What can be accomplished by dietary, other hygienic, and drug treatments? (6) What are the significant questions for future research? Following two days of presentations by experts and discussion by the audience, a consensus panel weighed the evidence and prepared their consensus statement. Among their findings, the panel concluded that (1) existing data provide considerable support for a causal relationship between low HDL and CHD; however, with respect to TG data are mixed and the evidence on a causal relationship is incomplete; (2) initial TG and/or HDL levels modify benefit achieved by lowering low density lipoprotein cholesterol (LDL-C); however, evidence from clinical trials is insufficient to draw conclusions about specific benefits of TG and/or HDL altering therapy; (3) HDL-C measurement should be added to total cholesterol measurement when evaluating CHD risk in healthy individuals provided accuracy of measurement, appropriate counseling, and followup can be assured; (4) there is general agreement with the Adult Treatment Panel (ATP) guidelines that LDL-C is essential in cardiovascular risk assessment, as well as that persons with elevations of LDL-C greater than 150 mg/dl refractory to nondrug therapies may require drug treatment; (5) there is a strong consensus that hygienic approaches (diet, exercise, smoking cessation, weight loss) should be employed to lower TG and/or raise HDL; there is no consensus for the use of drug treatment in patients with borderline hypertriglyceridemia and low HDL-C levels in the presence of a desirable LDL-C level.

Causality↗

Gallstones and laparoscopic cholecystectomy.

The National Institutes of Health Consensus Development Conference on Gallstones and Laparoscopic Cholecystectomy brought together surgeons, endoscopists, hepatologists, gastroenterologists, internists, radiologists, and epidemiologists as well as other health care professionals and the public to address (1) the indications for treatment of patients with gallstones; (2) the role of laparoscopic cholecystectomy in treating patients with gallstones; (3) the role of alternative medical and surgical treatments for gallstones; (4) the comparative results of laparoscopic cholecystectomy with open cholecystectomy and other available treatments; (5) techniques for detecting and treating bile duct stones with or without laparoscopic cholecystectomy; and (6) future directions for research in prevention and management of gallstone disease and in laparoscopic cholecystectomy. Following 2 days of presentations by experts and extensive discussion by the audience, a consensus panel weighed the evidence and prepared their consensus statement. Among their findings, the panel concluded that (1) most patients who experience symptoms of gallstones should be treated; (2) in comparison with open cholecystectomy, laparoscopic cholecystectomy provides a safe and effective treatment for most patients with symptomatic gallstones and has become the treatment of choice for many patients; (3) patients who are not good candidates for laparoscopic cholecystectomy include those with generalized peritonitis, septic shock from cholangitis, severe acute pancreatitis, endstage cirrhosis, and gallbladder cancer; (4) laparoscopic cholecystectomy decreases pain and disability without increasing mortality and morbidity and can be performed at an equal or lower cost than open cholecystectomy; and (5) every effort should be made to ensure that surgeons performing laparoscopic cholecystectomy are properly trained and credentialed. The full text of the consensus panel's statement follows.

Bile Acids and Salts↗

Impotence.

The National Institutes of Health Consensus Development Conference on Impotence was convened to address (1) the prevalence and clinical, psychological, and social impact of erectile dysfunction; (2) the risk factors for erectile dysfunction and how they might be used in preventing its development; (3) the need for and appropriate diagnostic assessment and evaluation of patients with erectile dysfunction; (4) the efficacies and risks of behavioral, pharmacological, surgical, and other treatments for erectile dysfunction; (5) strategies for improving public and professional awareness and knowledge of erectile dysfunction; and (6) future directions for research in prevention, diagnosis, and management of erectile dysfunction. Following 2 days of presentations by experts and discussion by the audience, a consensus panel weighed the evidence and prepared their consensus statement. Among their findings, the panel concluded that (1) the term "erectile dysfunction" should replace the term "impotence"; (2) the likelihood of erectile dysfunction increases with age but is not an inevitable consequence of aging; (3) embarrassment of patients and reluctance of both patients and health care providers to discuss sexual matters candidly contribute to underdiagnosis of erectile dysfunction; (4) many cases of erectile dysfunction can be successfully managed with appropriately selected therapy; (5) the diagnosis and treatment of erectile dysfunction must be specific and responsive to the individual patient's needs and that compliance as well as the desires and expectations of both the patient and partner are important considerations in selecting appropriate therapy; (6) education of health care providers and the public on aspects of human sexuality, sexual dysfunction, and availability of successful treatments is essential; and (7) erectile dysfunction is an important public health problem deserving of increased support for basic science investigation and applied research.

Erectile Dysfunction↗

[Triglycerides, HDL and coronary disease. Consensus conference: National Institutes of Health 1992].

The article describes the conclusions and recommendations of the panel. A review of the information on HDL-cholesterol and coronary heart disease provides considerable evidence of a causal relationship. In the case of serum triglycerides, the data are ambiguous; although strong associations are found in some studies, evidence of a causal relation is still incomplete. Seen in relation to the latest Norwegian programme for treatment of hypercholesterolemia in adults, greater emphasis should be placed on measuring HDL-cholesterol. A complete initial lipid profile should also include determination of serum triglycerides. When taking these factors into consideration, the present Norwegian recommendations seem to be appropriate for evaluating and treating hyperlipidemia.

Cholesterol, HDL↗

The ethics of end-of-life research.

A notable and welcome increase in palliative care research has led to a multitude of ethical issues and concerns for researchers, clinicians, patients (subjects) and their family members (who also might be subjects), granting agencies, and professional journals. This edition of "Palliative Care Pearls" summarizes the recommendations from a work group that met at the National Institutes of Health in September, 2002. The primary purpose for that meeting was to explore the unique characteristics of this research population and the ethical concerns that might require tailoring of "standard" clinical research processes. The proceedings culminated in a document from which open discourse and a more formal set of guidelines might emanate to both foster more and better research, while providing protections for research subjects. This 62 page long monograph was published as a supplement to the Journal of Pain and Symptom Management (April, 2003). It includes six "plenary" papers, each that focuses on a distinct ethical domain of palliative care research and concludes with a set of recommendations and research questions. These might best be viewed as hypotheses that need to be tested or further explored.

Clinical Trials as Topic↗

Conference recommendations: practice, administration, research, education, and healthcare policy.

Small-group discussions following the presentation of papers at the Second Invitational Conference on the Role of the Oncology Clinical Nurse Specialist, held at the National Institutes of Health Clinical Center in Bethesda, MD, resulted in a wide range of recommendations in the areas of practice, administration, research, education, and healthcare policy issues. Recommendations are provided to further delineate the roles of oncology clinical nurse specialists (OCNSs), to increase their visibility, and to promote creative efforts to emply these skilled individuals more effectively in the future.

Clinical Competence↗