Respiratory Failure in Hyperthyroidism: Focus on Thyrotoxic Periodic Paralysis

Area of Science:

• Endocrinology
• Neurology
• Critical Care Medicine

Background:

• Thyrotoxic periodic paralysis (TPP) is a rare complication of hyperthyroidism, presenting as acute muscle weakness and hypokalemia.
• While typically manageable, TPP can progress to life-threatening respiratory failure, especially with atypical presentations.
• Understanding respiratory compromise in thyrotoxic states is vital for critical care management.

Purpose of the Study:

• To review cases of TPP with respiratory failure to identify diagnostic challenges.
• To analyze atypical presentations contributing to delayed TPP diagnosis.
• To emphasize the need for early recognition and multidisciplinary management of TPP-induced respiratory failure.

Main Methods:

• Systematic review of 14 reported cases of TPP complicated by respiratory failure (2004-2025).
• Analysis of clinical presentations, diagnostic delays, and management strategies.
• Comparative discussion of respiratory failure mechanisms in TPP versus thyroid storm.

Main Results:

• Reviewed cases highlight clinical gaps in early TPP recognition.
• Atypical presentations were common, leading to delayed diagnosis and treatment.
• Respiratory failure in TPP necessitates prompt, multidisciplinary critical care.

Conclusions:

• TPP with respiratory failure requires heightened clinical awareness due to unusual presentations.
• Early identification and prompt, collaborative management involving respiratory, endocrine, and ICU teams are essential.
• Addressing diagnostic delays can significantly improve prognosis in severe TPP cases.