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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

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Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
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Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

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Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

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In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

257
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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[Dyslipidaemias in elderly patients].

Aytül Belgi Yıldırım1, Ali Yaşar Kılınç

  • 1Department of Cardiology, Akdeniz University Faculty of Medicine, Antalya, Turkey. aytul.belgi@gmail.com.

Turk Kardiyoloji Dernegi Arsivi : Turk Kardiyoloji Derneginin Yayin Organidir
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Statin therapy benefits older adults with coronary heart disease by reducing vascular events and mortality. However, higher doses do not improve efficacy but increase risks like myopathy, necessitating careful patient monitoring.

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Area of Science:

  • Gerontology
  • Cardiovascular Medicine
  • Pharmacology

Background:

  • Statin use is prevalent in individuals aged 65 and older.
  • Meta-analyses confirm statins reduce vascular events and mortality in patients with existing coronary heart disease.

Purpose of the Study:

  • To evaluate the efficacy and safety of statin therapy in older adults.
  • To determine if higher statin doses or potencies enhance benefits or increase risks in this population.

Main Methods:

  • Meta-analysis of randomized controlled trials involving older patients.
  • Assessment of vascular events, mortality, myopathy, and cognitive impairment.

Main Results:

  • Statins effectively reduce vascular events and mortality in older adults with coronary heart disease.
  • Higher statin doses or potencies do not improve effectiveness but elevate risks of adverse effects like myopathy and cognitive impairment.
  • Older age is identified as a risk factor for statin-related adverse events.

Conclusions:

  • While statins offer cardiovascular benefits for older individuals, dose optimization is crucial.
  • The increased susceptibility of older adults to adverse effects necessitates individualized treatment plans, balancing benefits against potential harms.
  • Careful consideration of comorbidities and polypharmacy is essential when prescribing statins to the elderly.