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Related Concept Videos

The Parathyroid Glands00:59

The Parathyroid Glands

The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
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 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...
Kidney Transplant II: Surgical Procedure01:26

Kidney Transplant II: Surgical Procedure

Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living donor...
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...

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[Medicolegal aspects of primary and renal hyperparathyroidism].

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Management of primary and renal hyperparathyroidism: guidelines from the German Association of Endocrine Surgeons (CAEK).

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Related Experiment Video

Updated: May 13, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

Failed surgery in primary hyperparathyroidism - what has changed with time.

D Wirowski1, P E Goretzki, K Schwarz

  • 1Department of Visceral and Endocrine Surgery, Lukaskrankenhaus Neuss, Neuss, Germany. dwirowski@lukasneuss.de

Experimental and Clinical Endocrinology & Diabetes : Official Journal, German Society of Endocrinology [And] German Diabetes Association
|March 21, 2013
PubMed
Summary
This summary is machine-generated.

Reasons for persistent primary hyperparathyroidism surgery failure remain similar despite advanced imaging. Sporadic multiple gland disease and missed solitary adenomas are key issues, impacting surgical outcomes for parathyroid adenomas.

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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

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Last Updated: May 13, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
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Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

Published on: July 14, 2023

Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Medical Diagnostics

Background:

  • Primary hyperparathyroidism (PHPT) surgical outcomes have improved with advanced imaging and intraoperative parathyroid hormone (PTH) monitoring.
  • However, persistent PHPT requiring re-operation remains a challenge.
  • Understanding the evolving reasons for surgical failure is crucial for optimizing treatment strategies.

Purpose of the Study:

  • To investigate whether the reasons for surgical failure in primary hyperparathyroidism have changed over the past 25 years.
  • To compare the causes of persistent PHPT in two distinct time periods (1986-2001 and 2001-2011).
  • To assess the success rates of re-operations for persistent PHPT.

Main Methods:

  • Retrospective analysis of patients undergoing surgery for persistent PHPT between 2001-2011 (n=67) and 1986-2001 (n=80).
  • Comparison of failure reasons between the two study periods.
  • Analysis of re-operation success rates.

Main Results:

  • Overall cure rate for primary PHPT was 99.5% (761/765) between 2001-2011.
  • For persistent PHPT, main failure reasons were misdiagnosed sporadic multiple gland disease (62.1%) in own patients and undetected solitary adenoma (57.9%) in referred patients (2001-2011).
  • These failure reasons were statistically similar to the 1986-2001 period, indicating no significant change despite technological advancements.

Conclusions:

  • Despite advancements in preoperative imaging and intraoperative PTH monitoring, the primary reasons for persistent primary hyperparathyroidism surgery failure have not significantly changed over 25 years.
  • Sporadic multiple gland disease is the leading cause of failure in experienced centers, while missed solitary adenomas are more common in cases referred after initial surgery elsewhere.
  • Re-operation success rates remain high, exceeding 93.8% in both study periods.