Congenital Hypothyroidism: Screening and Management

Area of Science:

• Pediatrics
• Endocrinology
• Genetics

Background:

• Untreated congenital hypothyroidism (CH) can cause irreversible intellectual disabilities.
• Newborn screening (NBS) for CH enables early diagnosis and treatment, leading to normal neurocognitive outcomes.
• Global NBS coverage is limited, leaving many neonates vulnerable.

Purpose of the Study:

• To highlight the importance of timely diagnosis and management of CH.
• To address challenges in CH screening and treatment.
• To emphasize the need for clinical suspicion of CH even with normal NBS results.

Main Methods:

• Review of current literature on CH diagnosis and management.
• Discussion of treatment protocols and goals for CH.
• Analysis of special populations requiring tailored CH management.

Main Results:

• Early and adequate levothyroxine treatment normalizes neurodevelopment in CH patients.
• NBS is not universally available, with 70% of neonates lacking screening.
• Clinical symptoms of CH warrant thyroid function testing irrespective of NBS results.

Conclusions:

• NBS alone is insufficient; comprehensive CH management includes diagnosis confirmation, accurate testing, effective treatment, and follow-up.
• Physicians must consider CH in symptomatic infants, even if NBS results are normal.
• Prompt identification and management are key to preventing adverse outcomes in CH.