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Related Concept Videos

Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

93
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...
93
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

102
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...
102
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

67
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...
67
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

77
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...
77
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

92
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...
92
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

143
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...
143

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Related Experiment Video

Updated: Nov 17, 2025

Exergaming in Older People Living with HIV Improves Balance, Mobility and Ameliorates Some Aspects of Frailty
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[COVID-19 in old age-The geriatric perspective].

R Wirth1,2, C Becker3,4, M Djukic3,5,6

  • 1Deutsche Gesellschaft für Geriatrie (DGG), Berlin, Deutschland. rainer.wirth@ruhr-uni-bochum.de.

Zeitschrift Fur Gerontologie Und Geriatrie
|February 17, 2021
PubMed
Summary

Older adults face severe COVID-19 courses and mortality, necessitating geriatric-specific care and rehabilitation. Advanced care planning and balanced isolation measures are crucial, while mRNA vaccines show high effectiveness in the elderly.

Keywords:
AgingGeriatricsPandemiaRehabilitationSARS-CoV-2

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Area of Science:

  • Geriatric Medicine
  • Infectious Diseases
  • Public Health

Background:

  • Older adults experience disproportionately severe COVID-19 outcomes, with mortality rates up to 54% in those over 80.
  • While COVID-19 diagnostics and treatment are similar across age groups, atypical symptoms are more common in the elderly.
  • The pandemic has paradoxically reduced geriatric rehabilitation capacity despite increased patient needs.

Purpose of the Study:

  • To emphasize the critical geriatric perspective in managing COVID-19.
  • To highlight the challenges and recommendations for geriatric care during the pandemic.
  • To discuss the importance of advanced care planning and vaccination efficacy in older populations.

Main Methods:

  • Review of existing international studies and data on COVID-19 outcomes in older adults.
  • Analysis of diagnostic and treatment approaches in geriatric COVID-19 patients.
  • Evaluation of rehabilitation needs and availability, and the impact of pandemic-related measures.

Main Results:

  • Older individuals require more rehabilitation post-COVID-19, but services are reduced.
  • Isolation and quarantine measures can have severe health and emotional consequences for the elderly.
  • Advanced care directives are vital for older COVID-19 patients due to poor prognosis.
  • mRNA vaccines demonstrate comparable effectiveness in older and younger populations.

Conclusions:

  • Geriatric-specific considerations are essential for managing COVID-19, including atypical presentations and rehabilitation needs.
  • Balancing isolation measures and prioritizing advanced care planning are crucial for improving outcomes in elderly patients.
  • mRNA vaccination offers a promising protective strategy for the older population against severe COVID-19.