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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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

Pharmacodynamics in Geriatric Patients: Effects of Age

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

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

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

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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 not...
General Anesthesia: Overview01:24

General Anesthesia: Overview

Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
Stages of General Anesthesia01:22

Stages of General Anesthesia

Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...

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Related Experiment Video

Updated: Jun 3, 2026

Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
14:52

Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers

Published on: January 13, 2018

[Anaesthesia in elderly people].

Virginie Laurent1, Paer-Selim Abback, Pascal Christian

  • 1Groupe Hospitalier Paris-Saint-Joseph, Paris.

Soins. Gerontologie
|March 23, 2011
PubMed
Summary

Elderly patients face high risks during the perioperative period, with age and comorbidities driving mortality. Cognitive issues are linked to aging, not anesthesia, supporting early rehabilitation goals.

Related Experiment Videos

Last Updated: Jun 3, 2026

Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
14:52

Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers

Published on: January 13, 2018

Area of Science:

  • Geriatric Medicine
  • Anesthesiology
  • Surgical Care

Context:

  • Elderly patients experience elevated perioperative morbidity and mortality.
  • Chronological age and comorbidities are primary contributors to mortality in this demographic.
  • Anesthetic management strategies vary, with regional anesthesia in 50% of cases and invasive monitoring for general anesthesia.

Purpose:

  • To analyze perioperative risks in elderly patients.
  • To investigate factors contributing to mortality and cognitive dysfunction.
  • To explore strategies for early rehabilitation, including ambulatory care.

Summary:

  • Perioperative outcomes for elderly patients are significantly impacted by age and comorbidities.
  • Cognitive dysfunction is primarily associated with advanced age, independent of anesthetic technique.
  • Current anesthetic practices involve invasive monitoring and titrated medication for general anesthesia.

Impact:

  • Highlights the need for tailored perioperative care strategies for geriatric populations.
  • Suggests that anesthetic technique is less influential on cognitive function than chronological age.
  • Supports the implementation of early rehabilitation and ambulatory care models to improve outcomes in elderly surgical patients.