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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...
Disorders of Erythrocytes01:27

Disorders of Erythrocytes

Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

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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Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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Measuring Frailty in HIV-infected Individuals. Identification of Frail Patients is the First Step to Amelioration and Reversal of Frailty
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Anemia and the frail elderly.

Andrew S Artz1

  • 1Section of Hematology/Oncology, University of Chicago Pritzker School of Medicine, 5841 S. Maryland Avenue, Chicago, IL 60637, USA. aartz@medicine.bsd.uchicago.edu

Seminars in Hematology
|September 24, 2008
PubMed
Summary

Anemia is common in frail older adults and may accelerate frailty development. Further research is needed to see if treating anemia can improve outcomes for frail individuals.

Area of Science:

  • Gerontology
  • Hematology
  • Internal Medicine

Background:

  • Frailty is a clinical syndrome in older adults characterized by vulnerability to stressors due to diminished physiological reserve.
  • Key features include weight loss, exhaustion, muscle weakness, impaired performance, and cognitive slowing.
  • Anemia is significantly more prevalent in frail older adults.

Purpose of the Study:

  • To explore the complex relationship between anemia and frailty in older adults.
  • To investigate anemia's role as a prognostic factor for frailty-related adverse outcomes.
  • To highlight the need for interventional studies on anemia treatment in frail populations.

Main Methods:

  • Observational analysis of frailty characteristics and anemia prevalence.

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  • Assessment of anemia as a predictor of frailty progression and related complications.
  • Review of existing literature on the anemia-frailty interaction.

    • Main Results:

    • Anemia prevalence is markedly increased among frail older adults.
    • Anemia is a strong prognostic indicator for adverse outcomes in frailty, including muscle weakness, falls, and mortality.
    • Even mildly reduced hemoglobin levels are associated with negative health outcomes.

    Conclusions:

    • Anemia appears to predispose to or accelerate the development of frailty.
    • The causal relationship between anemia and frailty requires further elucidation.
    • Interventional studies are crucial to determine if anemia treatment can mitigate frailty development and its consequences.