Longitudinal Studies in Geriatric Medicine.

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  • 老年病の縦断的研究
  • ロウネンビョウ ノ ジュウダンテキ ケンキュウ

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Abstract

The results of longitudinal studies in geriatric medicine were reviewed by referring to relatively recent publications. “Longidufinal studies” comprised not only cohort studies but also prospective case-control studies in the broad sense. Poor self-rated health, weight loss, hypoalbuminemia, inability to perform activities of daily living, low levels of physical activity, and cognitive dysfunction, all of which could be manifestations of chronic diseases, might shorten longevity. Cardiomegaly or left ventricular hypertrophy on ECG were again found to be important risk factors for cardiovascular disease in the aged, because of their relation to atherosclerosis. There is no evidence regarding the contribution of hyperlipidemia to the risk of cardiovascular disease in the aged, although insulin resistance can increase serum triglyceride levels and reduced level of high-density lipoprotein cholesterol even in the aged. Mortality due to stroke and heart disease have been decreasing in most developed countries, and several recent community-based studies have also shown decreases in the incidence of cerebral stroke. Large-scale case-control studies on the pharmacological treatment of hyperlipidemia have resulted in both primary and secondary prevention of coronary heart disease. However, information concerning the effects of treatment for hyperlipidemia on coronary heart disease in the aged is limited. Results of large-scale case-control studies indicate that pharmacological treatment of elderly hypertensive patients can reduce cardiovascular morbidity and mortality, and angiotensin-converting enzyme inhibitors have recently been shown ot be useful.

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