methimazole and Jaundice--Obstructive

We present a case of a 43-year-old female patient diagnosed with hyperthyroidism. This study aims to demonstrate the rare association between hyperthyroidism and severe cholestatic jaundice, and the effectiveness of methimazole treatment.. The patient developed severe jaundice, a typically mild symptom in most hyperthyroidism cases.. The severe jaundice was suspected to be a result of cholestasis induced by hyperthyroidism, with other potential causes such as drug-induced or autoimmune liver dysfunction being ruled out.. The patient was effectively treated with methimazole. Outcomes: Treatment with methimazole alleviated the severe cholestatic jaundice and restored normal thyroid function.. The specific mechanism of cholestasis as a secondary complication of hyperthyroidism remains unclear, and there are no specific biochemical markers for cholestasis caused by this hormonal disease. This case underscores the possibility of severe jaundice as a clinical manifestation of hyperthyroidism, and highlights antithyroid drug treatment as an effective strategy for managing severe cholestatic jaundice.

Topics: Adult; Antithyroid Agents; Cholestasis; Female; Humans; Hyperthyroidism; Jaundice, Obstructive; Methimazole

A woman in her 30s presented to the emergency department with new-onset sore throat and fever. She had recently been diagnosed with Graves' disease 3 months prior. As a result, she was initiated on atenolol and methimazole for management. Her methimazole dosing had been stable at 15 mg daily for the month prior to presentation. Investigation revealed severe neutropenia and jaundice. She was found to have concomitant agranulocytosis and cholestatic jaundice secondary to methimazole.Methimazole was discontinued on admission and the patient received granulocyte colony-stimulating factor for an absolute neutrophil count (ANC) of zero. She was placed on broad-spectrum antibiotics and intravenous steroids for epiglottic and supraglottic oedema noted on bedside laryngoscopy. ANC and bilirubin improved over a 2-week hospital course. She was discharged on a temporary regimen of propranolol, dexamethasone and potassium iodide until she was able to undergo successful thyroidectomy for definitive management of Graves' disease outpatient.

Topics: Agranulocytosis; Antithyroid Agents; Female; Graves Disease; Humans; Jaundice, Obstructive; Methimazole; Neutropenia

Methimazole is an antithyroid drug that is widely used for the treatment of hyperthyroidism. As an inhibitor of the enzyme thyroperoxidase, methimazole is generally well-tolerated. However, there have been increasing reports of methimazole-induced liver damage, although this effect of methimazole has been limited by the absence of objective diagnosis of the liver condition or the inappropriate use of the Naranjo scale. We present the case of an elderly man with hyperthyroidism, gastritis, and epilepsy who developed liver damage after administration of multiple drugs.. Considering the low sensitivity of the Naranjo scale in detecting rare reactions associated with liver damage, we used the Roussel-Uclaf Causality Assessment Method scale, with a finding of cholestatic jaundice hepatitis induced by methimazole. The patient's liver enzyme levels improved after discontinuation of methimazole.. Our case underlines the possible hepatoxicity associated with the use of methimazole. A review of the literature confirmed a selective hepatoxicity risk in individuals of Asian ethnicity, which has not been identified in Caucasian or Black populations. Physicians should be aware of the risk of hepatoxicity when prescribing oral methimazole to patients of Asian ethnicity.

Topics: Aged; Antithyroid Agents; Asian People; Chemical and Drug Induced Liver Injury; Humans; Hyperthyroidism; Jaundice, Obstructive; Liver Function Tests; Male; Methimazole

Methimazole is commonly prescribed for patients who are thyrotoxic. Cholestatic hepatitis is a rare but serious adverse event which may be associated with interventional therapy. In this case report, we present two Chinese women with cholestatic jaundice due to methimazole treatment. Both patients had a history of hyperthyroidism; initial laboratory studies of liver function were normal and cholestatic hepatitis occurred after treatment with methimazole. Concomitant liver disease, such as viral hepatitis (A, B, C, D, E), autoimmune hepatitis, primary biliary cirrhosis and calculus of bile duct, were excluded. Liver enzyme levels in both patients returned to normal after stopping methimazole therapy and taking hepatoprotective drugs. It is essential that patients are informed about the earliest symptoms of serious adverse effects of antithyroid drugs, such as hepatic toxicity, and that they are advised to stop taking the drug immediately and contact their physician if such symptoms occur.

Topics: Adult; Anti-Inflammatory Agents; Antithyroid Agents; Drug-Related Side Effects and Adverse Reactions; Female; Hepatitis; Humans; Hyperthyroidism; Jaundice, Obstructive; Methimazole; Methylprednisolone; Middle Aged; Prognosis

Hyperthyroidism is one of the most frequent endocrine disorders and its current treatment is based on drugs, surgery and radioactive iodine. Methimazole is the antithyroid drug of choice because of its potency and infrequent side effects, usuaIly mild. This medication is rarely associated with liver toxicity, usually manifested as cholestatic jaundice. Here we report the case of a 33-year-old woman treated at the University Hospital Fundación Santa Fe de Bogota, with hepatotoxicity induced by a methimazole-based treatment for Graves' disease. The pruritus and jaundice appeared after three weeks of therapy, viral hepatitis markers were negative, hepatobiliary ultrasonography was normal, and an increase of the levels of alkaline phosphatase, total bilirubin and aminotransferases was found The causal diagnosis of methimazole-induced hepatotoxicity was supported by the results of a liver biopsy. According to the CIOMS scale the score was 10, and the causal relationship of the hepatic adverse reaction by methimazole is highly probable. The clinical course was satisfactory when the medication was suspended, with clinical improvement at 5 days, and normalization of liver tests at 5 weeks. We discuss this case from a diagnostic and therapeutic approach.

Topics: Adult; Antithyroid Agents; Female; Humans; Hyperthyroidism; Jaundice, Obstructive; Methimazole

Topics: Antithyroid Agents; Female; Humans; Jaundice, Obstructive; Methimazole

Therapeutic plasma exchange (TPE) is an alternative treatment for hyperthyroidism, resulting in a rapid decline in plasma thyroid hormones and anti-thyroid antibodies. TPE has also been used both in primary liver disease and in drug-induced cholestasis. Data on thyrotoxic patients with severe hepatic complications are scarce. Cholestasis induced by imidazol-derived anti-thyroid drugs is extremely rare. The use of TPE for treating this complication was not previously reported. We report the experience of one such patient with a favorable response to TPE. A 45-year-old male patient with Graves' disease, presented with severe jaundice and extremely high serum bilirubin levels due to hepatotoxicity induced by tiamazol. Through extensive investigation primary liver disease, including viral, metabolic, neoplastic and autoimmune disease, as a cause of cholestasis were all ruled out. The patient underwent total of 6 TPEs which in combination with low dose of glucocorticoids and standard supportive measures, resulted in normalization of thyroid hormones and normal liver function tests. TPE provided a safe, rapid and effective treatment of severe drug-induced cholestasis and auto immune hyperthyroidism. From this case we conclude that TPE should be considered as a valuable alternative therapeutic option in thyrotoxic patients with severe complications. Guidelines and indication criteria for TPE treatment in patients with hyperthyroidism are still lacking.

Topics: Antithyroid Agents; Bilirubin; Graves Disease; Humans; Jaundice, Obstructive; Male; Methimazole; Middle Aged; Plasma Exchange

Methimazole is a widely used antithyroid agent. Although methimazole is generally well tolerated, rare but severe cholestatic jaundice may occur. We described a 74-year-old woman who had a 10-year history of type 2 diabetes had developed severe jaundice and itching 1 month after receiving methimazole (10 mg tid) and propranolol (10 mg tid) for the treatment of hyperthyroidism. Clinical investigations revealed no evidence of any mechanical obstruction in the common bile duct or other obvious causes of hepatic injury, and the diagnosis methimazole-induced cholestasis was made on the basis of the temporal relationship between initiation of methimazole and onset of cholestasis. Methimazole was hence discontinued. However, the patient experienced a progressive worsening in cholestasis after receiving 2 weeks of ursodeoxycholic acid (UDCA) therapy. Prednisone therapy was then attempted. Liver function tests eventually improved with combination of glucocorticoids and ursodeoxycholic acid therapy. This case clearly showed that glucocorticoids could be a possible additional way of treatment for some cases of drug-induced cholestatic jaundice even in diabetic patients.

Topics: Aged; Antithyroid Agents; Diabetes Mellitus, Type 2; Female; Humans; Hyperthyroidism; Hypoglycemic Agents; Jaundice, Obstructive; Methimazole; Severity of Illness Index; Steroids

Hyperthyroidism is a common disease in the elderly. Antithyroid medications such as methimazole are one of the few treatment options.. A 76-year-old white woman presented to the clinic with a 1-week history of fatigue, sleepiness, 7-pound weight loss, and tachycardia. Her blood work showed low levels of thyroid-stimulating hormone and high levels of free thyroxine. Due to persistence of her symptoms, she was hospitalized and started on methimazole 10 mg TID. Six weeks after receiving methimazole for the treatment of hyperthyroidism, she had severe jaundice and itching. Results of her liver function tests showed elevation of her alkaline phosphatase and liver transaminase levels, as well as hyperbilirubinemia, formed mainly of the conjugated fraction. Methimazole-induced cholestatic jaundice was diagnosed. Her symptoms gradually improved after discontinuation of the medication, and plasma bilirubin levels were near normal after 8 weeks without methimazole.. We report here a probable association between methimazole use and severe cholestatic jaundice in an elderly hyperthyroid patient. The patient's jaundice was reversed after drug discontinuation.

Topics: Aged; Alanine Transaminase; Alkaline Phosphatase; Antithyroid Agents; Bilirubin; Female; Humans; Hyperthyroidism; Jaundice, Obstructive; Liver Function Tests; Methimazole

Methimazole is a widely used and generally well-tolerated antithyroid agent. A 43-year-old woman had severe jaundice and itching 1 month after receiving methimazole (10 mg tid) and propranolol (20 mg tid) for treatment of hyperthyroidism. The patient continued treatment for another 4 days after the appearance of jaundice until she finished both medications. When seen at the emergency department 2 weeks later, she still had severe icterus, pruritus, and hyperbilirubinemia, formed mainly of the conjugated fraction. Methimazole-induced cholestasis was diagnosed, and propranolol therapy was resumed. Over the following 9 days, the symptoms improved and plasma bilirubin levels were normal after 12 weeks without methimazole. In rare cases within the first few weeks of therapy, this drug can cause severe and reversible cholestatic jaundice. Physicians and patients should be aware of this adverse effect so that, upon occurrence, they can discontinue methimazole therapy and avoid unnecessary invasive procedures.

Topics: Adult; Aged; Antithyroid Agents; Female; Humans; Jaundice, Obstructive; Male; Methimazole; Middle Aged; Pruritus