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In the near future, with the continuous increase in life expectancy observed in the population and with the aging of the baby boomers, an increase is expected in the absolute and relative number of the elderly population. With the aging phenomenon, the prevalence of a number of chronic diseases is increasing and requires interventions from different health professionals. Type 2 diabetes mellitus is a very frequent condition in the elderly and is characterized by variable degrees of hyperglycemia while ketosis is exceptional in this condition. The question of who should be offered optimal glycemic control becomes more and more pertinent as the older diabetic population grows but it has to be considered that the consequences of hypoglycemia related to the medications used to lower glycemia are not benign in the older population. Hence, the advantages and disadvantages of tight glycemic control will be reviewed in the light of recent data.