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Related Concept Videos

Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Graves Disease II: Pathophysiology01:24

Graves Disease II: Pathophysiology

Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor, and heat...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...
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...

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Related Experiment Videos

Subclinical hypothyroidism in the elderly.

G Valenti1, A Fabbo

  • 1University of Parma, Ospedale G. Stuard, Via Don Bosco, 2, l-43100 Parma, Italy.

Archives of Gerontology and Geriatrics
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

Subclinical hypothyroidism in the elderly often presents with clinical symptoms like cognitive impairment and mood disorders. Screening hospitalized elderly patients with thyroid-stimulating hormone (TSH) tests is recommended for early detection and treatment.

Related Experiment Videos

Area of Science:

  • Geriatric Medicine
  • Endocrinology
  • Internal Medicine

Background:

  • Subclinical hypothyroidism (SCH), defined as elevated thyroid-stimulating hormone (TSH) with normal free thyroxine (T4), is common in the elderly.
  • While often asymptomatic, SCH can be associated with various clinical manifestations in older adults.

Purpose of the Study:

  • To review the prevalence, causes, and clinical features of subclinical hypothyroidism in the elderly.
  • To propose a diagnostic algorithm for identifying elderly patients who would benefit from treatment.
  • To evaluate the utility of general screening for SCH in hospitalized elderly individuals.

Main Methods:

  • Minireview of existing literature on subclinical hypothyroidism in the elderly.
  • Focus on clinical manifestations including cognitive impairment, mood disorders, lipid dysmetabolism, and cardiovascular abnormalities.
  • Development of a diagnostic algorithm for treatment selection.

Main Results:

  • Subclinical hypothyroidism frequently presents with clinical symptoms in the elderly, contrary to its definition.
  • Key clinical features include cognitive impairment, mood disorders, lipid dysmetabolism, and cardiovascular abnormalities.
  • A diagnostic algorithm is proposed to guide treatment decisions.

Conclusions:

  • Subclinical hypothyroidism in the elderly, despite its definition, often manifests with significant clinical symptoms.
  • Screening hospitalized elderly patients using serum TSH assays is considered valuable.
  • Early detection and appropriate management can potentially mitigate adverse clinical outcomes in this population.