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Related Concept Videos

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...
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 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...
Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The iodine is then...
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...

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Minimal Invasive Resection of Large Retrosternal Thyroid Goiter
04:09

Minimal Invasive Resection of Large Retrosternal Thyroid Goiter

Published on: September 20, 2024

Thyroid function after subtotal thyroidectomy in patients with Graves' hyperthyroidism.

E J Limonard1, P H Bisschop, E Fliers

  • 1Department of Surgery, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. e.j.limonard@amc.uva.nl

Thescientificworldjournal
|March 27, 2012
PubMed
Summary
This summary is machine-generated.

Subtotal thyroidectomy for Graves' hyperthyroidism often leads to hypothyroidism (84%) or persistent hyperthyroidism (10%), offering little functional advantage over total thyroidectomy.

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Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Thyroidology

Background:

  • Subtotal thyroidectomy aims to preserve thyroid function by leaving a remnant.
  • This procedure is performed to avoid lifelong thyroid hormone replacement therapy.

Purpose of the Study:

  • To evaluate long-term thyroid function after subtotal thyroidectomy.
  • To assess the efficacy of subtotal thyroidectomy for managing Graves' hyperthyroidism.

Main Methods:

  • Retrospective review of 62 patients who underwent subtotal thyroidectomy for Graves' hyperthyroidism (1992-2008).
  • Thyroid function assessed via plasma TSH and free T4 levels.
  • Median follow-up of 54.6 months.

Main Results:

  • Only 6% of patients remained euthyroid post-surgery.
  • High incidence of hypothyroidism (84%) and persistent/recurrent hyperthyroidism (10%).
  • Low rates of permanent complications: recurrent laryngeal nerve palsy (1.6%) and hypocalcemia (3.2%).

Conclusions:

  • Subtotal thyroidectomy for Graves' hyperthyroidism carries a high risk of hypothyroidism and a notable risk of persistent hyperthyroidism.
  • The functional benefits of subtotal thyroidectomy over total thyroidectomy appear minimal.
  • Consideration of total thyroidectomy may be warranted for Graves' hyperthyroidism management.