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Hyperthyroidism II: Pathophysiology

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...

Hyperthyroidism I: Introduction

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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...

Goiter

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Goiter refers to an abnormal enlargement of the thyroid gland that may appear as a diffuse goiter (uniform enlargement) or nodular (single or multiple nodules). Functionally, it is classified as nontoxic (normal/low hormone levels) or toxic (excess hormone production).PathophysiologyDiffuse thyroid enlargement typically results from prolonged stimulation by thyroid-stimulating hormone (TSH) or TSH-like agents, commonly seen in hypothyroidism or iodine deficiency. In contrast, in hyperthyroid...

The Thyroid Gland

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
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Hypothyroidism II: Pathophysiology

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...

Graves Disease II: Pathophysiology

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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...

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Minimal Invasive Resection of Large Retrosternal Thyroid Goiter

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Total thyroidectomy as primary elective procedure in multinodular thyroid disease.

Irfan Ali Sheikh¹, Sheikh Saadat Ullah Waleem, Irfan Zafar Haider

¹Department of Surgery, Combined Military Hospital, Muzafarabad.

Journal of Ayub Medical College, Abbottabad : JAMC

|November 12, 2010

Summary

This summary is machine-generated.

Total thyroidectomy is a safe primary elective surgery for multinodular goitre, effectively removing the disease and reducing recurrence. This procedure offers a safe alternative to subtotal thyroidectomy, minimizing risks associated with reoperation.

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Published on: September 15, 2023

Area of Science:

Endocrinology
Surgical Oncology
Thyroid Surgery

Background:

Multinodular goitre is a common thyroid condition requiring surgical intervention.
Subtotal thyroidectomy is frequently performed, but total thyroidectomy offers complete tissue removal.
Evaluating total thyroidectomy as a primary treatment for multinodular thyroid disease is crucial.

Purpose of the Study:

To assess the safety and efficacy of total thyroidectomy as a primary elective procedure for multinodular thyroid disease.
To compare outcomes with traditional subtotal thyroidectomy approaches.

Main Methods:

A descriptive study involving 88 patients with multinodular thyroid disease.
Exclusion criteria included recurrent laryngeal nerve damage, recurrent goitre, parathyroid dysfunction, or malignancy.
All patients underwent total thyroidectomy by a consistent surgical team, with close follow-up for complications.

Main Results:

No major postoperative complications were observed.
A low incidence of unilateral recurrent laryngeal nerve damage (1.14%) and transient hypocalcaemia (2.27%) was reported.
The reported complications were minor and resolved quickly.

Conclusions:

Total thyroidectomy is a safe and effective primary elective procedure for multinodular thyroid disease.
This approach ensures complete disease removal, reduces local recurrence rates, and avoids risks of reoperative surgery.