Moderate drinking and cardiovascular disease.

The adverse consequences of heavy alcohol use are well known. However, recent media reports of a possible cardiovascular benefit associated with moderate drinking have revived public interest in the use of alcohol for "medicinal purposes." Knowledge development regarding guidelines for moderate alcohol use has lagged behind public interest in the possible health benefits of moderate alcohol use. At this time, evidence-based primary health promotion interventions related to the risks and benefits of moderate alcohol use are lacking in the health care literature. This chapter reviews 22 reports describing the relationship between moderate drinking and cardiovascular disease. The reports are classified by the level of evidence and critiqued on seven aspects of method. Conclusions related to the strength of the evidence that moderate drinking is a useful primary health promotion intervention are presented.

Predictors of alcohol misuse and abuse in older women.

PURPOSE: To determine the predictive ability of self-report questions, physical measures, and biomarkers to detect alcohol misuse and abuse among older women. DESIGN AND METHODS: Healthy women volunteers age 60 and older who fit selection criteria were enrolled. The 135 participants were divided into nondrinkers (ND; n = 63) and drinkers (D; n = 72) based on self-reports of quantity and frequency of standard drinks consumed per month. The mean ages for the groups were 69.2 (ND) and 69.6 (D). FINDINGS: The best predictor was a score >0 on the T-ACE, a four-item instrument to detect alcohol abuse. Other significant predictors were: (a) behaviors: smoking, mixing over-the-counter (OTC) drugs with alcohol, heavy coffee drinking, using alcohol to sleep, and less sleep latency; and (b) biomarkers: higher mean corpuscular volume (MCV), hemoglobin (Hgb), hematocrit (Hct), and high-density lipoprotein cholesterol (HDL). The heaviest drinker subgroup had more physical stigmata, including broken blood vessels in nose and larger liver spans. CONCLUSIONS: The "best predictor model" showed that older women who were at risk for alcohol misuse or abuse had T-ACE scores of 1 or higher, used two or more OTC drugs regularly, drank large amounts of coffee, used alcohol to fall asleep, and had less sleep latency. Because positive T-ACE scores have high sensitivity and specificity for alcohol abuse, scores of 1 or greater should be addressed in clinical settings, e.g., referrals for more definitive diagnoses and relevant treatment.

The association between moderate drinking and heart rate variability in healthy community-dwelling older women.

The relationships among moderate alcohol use, autonomic tone, and arrhythmogenesis in older adults have not been adequately studied. Knowledge about these relationships is of increasing importance in light of population aging and recent epidemiological findings that associate moderate alcohol use with decreased rates of coronary artery disease. The purpose of this study was to assess the association between moderate drinking and autonomic tone in older women. Fifty-two Caucasian female participants (age 69 +/- 5.2) were enrolled in the study. Autonomic tone was estimated by time-domain and frequency-domain measures of heart rate variability. Multivariate analysis revealed that alcohol consumption rate in the sample accounted for approximately one third of the 24-h variability in the SDNN and the SDANN, measures of variability cycle lengths of 24-h and more than 5-min, respectively. Significant contributions of alcohol consumption rate to the shorter-term time-domain measures rMSSD and ASDNN, all frequency-domain measures, and HR were not confirmed. However, repeated measures ANOVA revealed that, between the hours of 0000 and 0600, women who drank approximately 0.5 to 3 standard drinks per day had significantly lower [log] HF and [log] LF power compared to abstainers and a tendency toward sympathetic predominance during the evening and nighttime hours. The authors discuss the implications of these findings.

Moderate alcohol consumption and unappreciated risk for alcohol-related harm among ethnically diverse, urban-dwelling elders.

The purpose of this cross-sectional survey was to gather data describing how older adults define moderate alcohol consumption and how they have interpreted media reports of the health benefits of moderate alcohol consumption. Results showed that many older adults define moderate alcohol use at levels above Federal guidelines, and a notable number of older adults agree that moderate use is good for health. The disparity between older adults' definition of moderate drinking and Federal guidelines for low-risk drinking may contribute to the underrecognition of problem drinking by nurses and other health care providers and place older adults at an unappreciated level of risk for alcohol-related harm.

A theoretical model of the role of brain stem nuclei in alcohol-mediated arrhythmogenesis in older adults.

Uncertainty about the mechanism of alcohol-mediated arrhythmogenesis and the effect of alcohol use on arrhythmic risk among older adults is an increasing concern in light of population aging and recent reports that moderate alcohol consumption may protect older adults against coronary artery disease. In this review, a theoretical model of the role of brain stem nuclei in alcohol-mediated arrhythmogenesis in older adults is developed. The model is based on the hypothesis that the effects of alcohol on central autonomic pathways of cardiac control may alter the threshold for alcohol-mediated arrhythmogenesis among older adults. Findings from multiple lines of research including cellular, electrophysiological, epidemiological, experimental, and clinical studies in human, animal, and in vitro models were synthesized in developing the model. Suggestions for future research on the topic of alcohol-mediated arrhythmogenesis in older adults are offered.