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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

344
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...
344
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

309
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...
309
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

300
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...
300
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

793
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...
793
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

318
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...
318
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

308
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...
308

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Related Experiment Video

Updated: Mar 17, 2026

Assessment of Dependence in Activities of Daily Living Among Older Patients in an Acute Care Unit
06:52

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[Comorbidity in elderly patients].

M V Putilina1

  • 1Pirogov Russian National Research Medical University, Moscow, Russia.

Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
|July 21, 2016
PubMed
Summary

Comorbidity, the simultaneous illness of two or more conditions, complicates elderly care, especially with cerebrovascular diseases. New treatments are urgently needed to manage complex conditions and reduce medication-related complications.

Area of Science:

  • Geriatrics
  • Neurology
  • Internal Medicine

Background:

  • Comorbidity, defined as concurrent damage to multiple organs or systems, is a significant challenge in healthcare.
  • In elderly individuals, somatic illnesses frequently coexist with cerebrovascular diseases, complicating diagnosis and treatment.
  • The complex pathogenesis of comorbidity often necessitates polypharmacy, increasing the risk of adverse events.

Purpose of the Study:

  • To highlight the urgent need for novel therapeutic strategies in managing elderly patients with comorbid conditions, particularly those involving cerebrovascular diseases.

Main Methods:

  • Literature review and synthesis of existing research on comorbidity in the elderly.
  • Analysis of the challenges posed by polypharmacy and its associated complications.

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Main Results:

  • Elderly patients with cerebrovascular diseases often present with multiple comorbidities, hindering timely and effective treatment.
  • The intricate nature of comorbidity necessitates a multifaceted treatment approach, frequently leading to polypharmacy.
  • Polypharmacy in this population is associated with a higher incidence of complications.

Conclusions:

  • There is a critical and ongoing need to develop innovative treatment approaches for elderly patients suffering from comorbidity.
  • Addressing the challenges of polypharmacy and its complications is essential for improving patient outcomes.