Characteristics of patients with subacute thyroiditis

Area of Science:

• Endocrinology
• Thyroidology
• Epidemiology

Background:

• Subacute thyroiditis (SAT) diagnosis and management can be difficult.
• Limited evidence exists on patient and disease characteristics for SAT.
• Further research is needed to understand SAT better.

Purpose of the Study:

• To investigate patient and disease characteristics of subacute thyroiditis (SAT).
• To determine the incidence and diagnostic accuracy of SAT in a specific region.
• To analyze treatment patterns and outcomes for SAT patients.

Main Methods:

• Retrospective cohort study of SAT patients in the North Denmark Region (2016-2018).
• Review of medical records and biochemical data pre-diagnosis and during two-year follow-up.
• Analysis of diagnostic verification, incidence rates, and biochemical profiles.

Main Results:

• SAT diagnosis verified in 44 out of 71 identified patients (62.0%); incidence rate 2.4/100,000/year.
• Verified SAT patients were predominantly female (72.7%) with a median age of 50.7 years.
• Initial thyrotoxicosis (69.8%) and elevated CRP (86.5%) were common; biphasic TSH response observed; treatment varied, with some requiring hormone replacement.

Conclusions:

• Hospital diagnosis of SAT was verified in less than two-thirds of cases in the North Denmark Region.
• Findings highlight diagnostic challenges and variability in SAT management.
• Larger studies are recommended to further elucidate SAT treatment and outcomes.