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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

105
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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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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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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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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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 Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

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As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

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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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[Geriatric medicine: update 2020].

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Summary
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New data support statin use in older adults. However, caution is advised with SGLT-2 inhibitors in frail diabetics, and nighttime antihypertensives may be more effective. Biomarkers aid neurocognitive disorder diagnosis, and multimodal interventions are key for fall prevention.

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Area of Science:

  • Geriatrics
  • Pharmacology
  • Neurology
  • Preventive Medicine

Background:

  • Recent 2020 studies provide updated evidence on medication efficacy and safety in older populations.
  • There is ongoing research into optimal drug therapies for elderly patients, including cardiovascular and metabolic conditions.
  • Diagnostic strategies for neurocognitive disorders and fall prevention in the elderly are evolving.

Purpose of the Study:

  • To summarize recent findings on statin use in the elderly.
  • To highlight considerations for SGLT-2 inhibitor use in frail older diabetic patients.
  • To review the timing of antihypertensive medication and potential prescribing cascades.
  • To emphasize the role of biomarkers in diagnosing neurocognitive disorders.
  • To assess the effectiveness of fall prevention strategies.

Main Methods:

  • Review of recent (2020) scientific literature and clinical studies.
  • Analysis of data regarding medication efficacy, safety, and patient subgroups.
  • Synthesis of evidence on diagnostic tools and preventive interventions.

Main Results:

  • New data support statin prescription for certain elderly and very old patients.
  • Caution is recommended for SGLT-2 inhibitors in frail, dependent older diabetic individuals due to limited study representation.
  • Nighttime administration of antihypertensives may offer greater benefits than morning doses.
  • A potential prescribing cascade involving diuretics with calcium channel blockers warrants attention.
  • Plasmatic biomarkers are increasingly vital for diagnosing neurocognitive disorders.
  • Fall prevention studies show varied results, with multimodal interventions remaining a primary approach.

Conclusions:

  • Evidence supports expanded statin use in specific elderly populations.
  • Careful consideration of SGLT-2 inhibitors is necessary for vulnerable older diabetic patients.
  • Optimizing antihypertensive timing and avoiding prescribing cascades are crucial for geriatric care.
  • Biomarker utilization is advancing the diagnosis of neurocognitive disorders.
  • Multimodal strategies remain the cornerstone of fall prevention in older adults.