A Case Report on Methimazole-Induced Severe Hypothyroidism.

Area of Science:

• Endocrinology
• Internal Medicine
• Clinical Case Study

Background:

• Severe, uncorrected hypothyroidism can precipitate a myxedema crisis, a rare but life-threatening hypometabolic state.
• Myxedema crisis is a clinical diagnosis requiring multifaceted treatment, including thyroid hormone replacement and supportive care.
• Despite aggressive management, myxedema crisis is associated with a high mortality rate.

Observation:

• A case of iatrogenic hypothyroidism with severe features is presented in a patient concurrently treated with methimazole and amiodarone.
• The complexity of the case was exacerbated by polypharmacy, multiple comorbidities, and strained emergency department resources during a global pandemic.
• This scenario underscores the importance of maintaining a high index of suspicion for severe hypothyroidism in patients with hyperthyroidism treatments experiencing any new health issues.

Findings:

• The presented case illustrates a severe manifestation of iatrogenic hypothyroidism.
• Concurrent use of methimazole and amiodarone complicated the clinical picture.
• The patient's complex medical history and external factors like the pandemic significantly influenced the presentation and management.

Implications:

• Immediate and appropriate treatment is crucial for patients presenting with severe hypothyroidism or myxedema crisis.
• Consultation with critical care specialists and admission to an advanced care unit are recommended for optimal management.
• This case emphasizes the need for vigilance in identifying and managing severe hypothyroidism, particularly in patients with complex medication regimens and comorbidities.