Best practice & research. Clinical anaesthesiology
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Best Pract Res Clin Anaesthesiol · Jun 2003
ReviewCo-medications, pre-medication and common diseases in the elderly.
Typically, old patients scheduled to undergo a surgical procedure take many medications for various disorders. The anaesthetist must consider the benefits and/or risks of continuation or withdrawal of such chronic medications. This chapter reviews these issues in respect of cardiovascular drugs (calcium channel blockers, beta adrenoreceptor antagonists, angiotensin-converting enzyme inhibitors and angiotensin receptor antagonists) and of psychotropic and antiparkinson medications and insulin. Focus is put on the few scientific studies available and on the recommendations given by experts in the field.
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Demographic data indicate an increasing workload of geriatric anaesthesia due to advancing life expectancy and reduced thresholds for high-invasive and high-risk surgery in the elderly. Chronological and biological age may be inconsistent, and the existence of age-related changes may vary between organ systems in the same individual. ⋯ In conclusion, listing current diagnoses will not be sufficient in the assessment of the geriatric patient because age-related changes do not necessarily manifest as pathological entities. Rather, pre-operative examination should focus on determination of individual margins of organ function reserve.
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Elderly patients represent the majority of the surgical population scheduled for ophthalmological surgery. Eye surgery is usually minimally invasive, enabling most of the procedures to be performed as day-case surgery despite the high co-morbidity of these patients. This, however, requires a specific perioperative anaesthetic strategy. In this chapter we address features of perioperative care in the geriatric population undergoing eye surgery, from pre-medication and pre-operative testing, to choice and performance of anaesthesia, and finally to post-anaesthesia care.
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The number of aged individuals is growing, and consequently the demands on resources for cardiac surgery will increase in the elderly. Even in the absence of obvious coexisting diseases, advanced age is always accompanied by a general decline in organ functions, and specifically by changes in structure and function of the heart and vasculature that will ultimately affect cardiovascular performance (e.g. hypertension, ischaemic heart disease, etc.). These alterations have to be taken into account when older patients require anaesthesia for cardiac surgery. ⋯ Essential monitoring should include pulmonary artery catheterization and/or transoesophageal echocardiography. During cardiac surgery the risk for elderly individuals is increased; in particular, the central nervous system is more often compromised in the elderly than in younger patients. However, elderly patients without significant co-morbidity have a mortality rate comparable to that of younger patients.