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Related Concept Videos

Prevention of Further Absorption of Poison01:14

Prevention of Further Absorption of Poison

In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
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...
Peritoneal Dialysis I: Introduction and Procedure01:30

Peritoneal Dialysis I: Introduction and Procedure

Peritoneal dialysis (PD) is a procedure that facilitates the exchange of solutes, waste products, electrolytes, and excess fluid between the blood in the peritoneal capillaries and a dialysis solution introduced into the peritoneal cavity.Principles of Peritoneal Dialysis (PD)Diffusion: Waste products such as urea and electrolytes move from high concentrations in the blood to low concentrations in the dialysate across the peritoneal membrane. This mechanism is driven by the concentration...
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...
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...
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...

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Related Experiment Video

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[Thyroid function after peritoneal lavage with polivinylpyrrolidone-iodine solution in diffuse peritonitis].

G Görtz, R Häring, M Henckel

    Zentralblatt Fur Chirurgie
    |January 1, 1984
    PubMed
    Summary

    Intraoperative peritoneal lavage with PVP-iodine solution significantly increased serum iodine levels and temporarily altered thyroid hormones in peritonitis patients. Normalization was delayed, raising concerns about iodine-induced thyrotoxicosis.

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    Area of Science:

    • Surgical Oncology
    • Endocrinology
    • Pharmacology

    Background:

    • Peritonitis necessitates intraoperative interventions.
    • Peritoneal lavage is a common procedure in managing peritonitis.
    • PVP-iodine solution is used for its antiseptic properties.

    Purpose of the Study:

    • To evaluate the impact of intraoperative peritoneal lavage with PVP-iodine solution on serum iodine levels and thyroid hormone status.
    • To compare the effects of PVP-iodine lavage with an iodine-free agent, Taurolin.
    • To assess the risk of iodine-induced thyrotoxicosis.

    Main Methods:

    • 36 patients with peritonitis underwent intraoperative peritoneal lavage.
    • 26 patients received PVP-iodine solution, and 10 received Taurolin.
    • Serum iodine levels and thyroid hormones (T4, T3, rT3) were monitored post-procedure.

    Main Results:

    • PVP-iodine lavage led to a significant increase in total serum iodine levels, primarily as iodide.
    • Thyroid hormone levels showed transient changes (decreased T4/T3, increased rT3) during the acute phase.
    • Hormone normalization was delayed after PVP-iodine lavage compared to Taurolin.
    • Two patients with pre-existing thyroid disorders experienced a temporary increase in T4.

    Conclusions:

    • Intraperitoneal PVP-iodine application causes significant systemic iodine absorption.
    • Transient thyroid hormone alterations occur, with delayed normalization after PVP-iodine.
    • The potential risk of iodine-induced thyrotoxicosis warrants caution against using PVP-iodine for intraperitoneal lavage.