Background: Evidence-based guidelines are needed for effective delivery of home oxygen therapy to appropriate patients with chronic obstructive pulmonary disease (COPD) and interstitial lung disease (ILD). Methods: The multidisciplinary panel created six research questions using a modified Delphi approach. A systematic review of the literature was completed, and the Grading of Recommendations Assessment, Development and Evaluation approach was used to formulate clinical recommendations. Recommendations: The panel found varying quality and availability of evidence and made the following judgments: 1 ) strong recommendations for long-term oxygen use in patients with COPD (moderate-quality evidence) or ILD (low-quality evidence) with severe chronic resting hypoxemia, 2 ) a conditional recommendation against long-term oxygen use in patients with COPD with moderate chronic resting hypoxemia, 3 ) conditional recommendations for ambulatory oxygen use in patients with COPD (moderate-quality evidence) or ILD (low-quality evidence) with severe exertional hypoxemia, 4 ) a conditional recommendation for ambulatory liquid-oxygen use in patients who are mobile outside the home and require >3 L/min of continuous-flow oxygen during exertion (very-low-quality evidence), and 5 ) a recommendation that patients and their caregivers receive education on oxygen equipment and safety (best-practice statement). Conclusions: These guidelines provide the basis for evidence-based use of home oxygen therapy in adults with COPD or ILD but also highlight the need for additional research to guide clinical practice.
Background: Current tobacco treatment guidelines have established the efficacy of available interventions, but they do not provide detailed guidance for common implementation questions frequently faced in the clinic. An evidence-based guideline was created that addresses several pharmacotherapy-initiation questions that routinely confront treatment teams. Methods: Individuals with diverse expertise related to smoking cessation were empaneled to prioritize questions and outcomes important to clinicians. An evidence-synthesis team conducted systematic reviews, which informed recommendations to answer the questions. The GRADE (Grading of Recommendations, Assessment, Development, and Evaluation) approach was used to rate the certainty in the estimated effects and the strength of recommendations. Results: The guideline panel formulated five strong recommendations and two conditional recommendations regarding pharmacotherapy choices. Strong recommendations include using varenicline rather than a nicotine patch, using varenicline rather than bupropion, using varenicline rather than a nicotine patch in adults with a comorbid psychiatric condition, initiating varenicline in adults even if they are unready to quit, and using controller therapy for an extended treatment duration greater than 12 weeks. Conditional recommendations include combining a nicotine patch with varenicline rather than using varenicline alone and using varenicline rather than electronic cigarettes. Conclusions: Seven recommendations are provided, which represent simple practice changes that are likely to increase the effectiveness of tobacco-dependence pharmacotherapy.
Use of electronic cigarettes, devices that deliver a nicotine-containing vapor, has increased rapidly across the country and globally. Perceived and marketed as a "healthier alternative" to conventional cigarettes, few data exist regarding the safety of these devices and their efficacy in harm reduction and treatment of tobacco dependence; even less is known about their overall impact on population health. This review highlights the recent data regarding electronic cigarette toxicity, impact on lung function, and efficacy in smoking reduction and cessation. Studies show that the vapor generated from electronic cigarettes has variable amounts of nicotine and potential harmful toxins, albeit at levels lower than in conventional cigarettes. The long-term carcinogenic and lung function effects of electronic cigarettes are not known. Although some data demonstrate that electronic cigarettes may be effective in reducing conventional cigarette consumption, there are no data demonstrating the efficacy of electronic cigarettes as a tool to achieve cessation. Until robust longitudinal evaluations demonstrate the safety of electronic cigarettes and efficacy in treatment of tobacco dependence, their role as a harm reduction tool is unclear.
Women's Cardiovascular Health Network members representing 10 Prevention Research Centers completed a literature review of approximately 65 population-based studies focused on improving women's cardiovascular health through behavior change for tobacco use, physical inactivity, or diet. A framework was developed for conducting the search. Databases (Medline, Psychlit, Smoking and Health, Cumulative Index to Nursing and Allied Health Literature) of studies published from 1980 to 1998 were searched. The review was presented at a meeting of experts held in Atlanta, Georgia. Output from the meeting included identification of what has worked to improve cardiovascular health in women and recommendations for future behavioral research. Additional information is available at www.hsc.wvu.edu/womens-cvh. Cardiovascular health interventions geared toward women are scant. Based on the available studies, program components that emerged as effective included personalized advice on diet and physical activity behaviors and tobacco cessation, multiple staff contacts with skill building, daily self-monitoring, and combinations of strategies. Recommendations for community-based tobacco, physical activity, and diet interventions are discussed. A few overarching recommendations were to (1) conduct qualitative research to determine the kinds of interventions women want, (2) examine relapse prevention, motivation, and maintenance of behavior change, (3) tailor programs to the stage of the life cycle, a woman's readiness to change, and subgroups, that is, minority, low socioeconomic, and obese women, and (4) evaluate policy and environmental interventions. The effects of cardiovascular interventions in women have been inappropriately understudied in women. Our review found that few studies on cardiovascular risk factor modification have actually targeted women. Hence, adoption and maintenance of behavior change in women are elusive. Intervention research to improve women's cardiovascular health is sorely needed.
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