Cited by 371Thyroid Disorders and TreatmentsPotassium and Related DisordersCardiac electrophysiology and arrhythmias

Thyrotoxic Periodic Paralysis: A Diagnostic Challenge

Kung, Annie W. C.·2006·The Journal of Clinical Endocrinology & Metabolism

Abstract

CONTEXT: The aim of this article was to review the clinical presentation, pathogenesis, and management of thyrotoxic periodic paralysis (TPP). EVIDENCE ACQUISITION: A MEDLINE search was conducted for articles published during the last 40 yr based on the key words thyrotoxic periodic paralysis and hypokalemic periodic paralysis. A total of 281 primary articles and 168 references of the retrieved articles were also reviewed. EVIDENCE SYNTHESIS: TPP is a common complication of hyperthyroidism in Asian men but is increasingly seen in Western countries. Hypokalemia and muscle paralysis results from a sudden intracellular shift of potassium and is not due to potassium deficiency. Clinical features of hyperthyroidism in patients with TPP may be subtle. Immediate potassium supplementation prevents serious cardiopulmonary complications and may hasten the recovery of muscle weakness. Nonselective beta-adrenergic blockers can ameliorate and prevent recurrence of the paralytic attacks. This episodic paralysis will remit with definitive control of hyperthyroidism. Increased sodium-potassium ATPase pump activity and enhanced insulin response in patients with TPP is postulated to contribute to the hypokalemia. The genetic predisposition for TPP is not entirely clear. Association of polymorphisms of the calcium channel alpha1-subunit gene with TPP has been noted. CONCLUSIONS: Due to population mobility, TPP is increasingly common in Western countries. Early diagnosis and prompt treatment prevent life-threatening complications associated with hypokalemia and muscle weakness. Assaying of thyroid function in patients with hypokalemic paralysis distinguishes TPP from other forms of hypokalemic periodic paralysis.

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Crossref · 10.1210/jc.2006-0356

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71 of 71 references verified0 citation errors · 0 not checkable

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  • The consistent temporal link between intra-articular triamcinolone acetonide 40 mg and each paralytic episode with symptom onset within four hours on both occasions highlights corticosteroids as a significant and often overlooked trigger in vulnerable patients.

    “Second, the consistent temporal link between intra-articular triamcinolone acetonide 40 mg and each paralytic episode with symptom onset within four hours on both occasions highlights corticosteroids as a significant and often overlooked trigger in vulnerable patients [8].”
  • THPP episodes are typically transient and self-limiting and are precipitated by factors such as high-carbohydrate meals, physical activity, and β-adrenergic agonists.

    “Episodes are typically transient and self-limiting and are precipitated by factors such as high-carbohydrate meals, physical activity, and β-adrenergic agonists [11].”
  • A high glucose load, insulin infusion, and exercise test could induce paralysis and weakness during the post-exercise resting period.

    “A high glucose load, insulin infusion, and exercise test could induce paralysis and weakness during the post-exercise resting period [6].”

    From A Case of Thyrotoxic Periodic Paralysis: "I Can't Move!" (2023) · cites this paper as [6]

  • Thyrotoxic periodic paralysis typically affects Asian males between the ages of 20 and 40.

    “It typically affects Asian males between the ages of 20-40 [4, 5, 6].”

    From A Case of Thyrotoxic Periodic Paralysis: "I Can't Move!" (2023) · cites this paper as [6]

  • THPP occurs more commonly among young Asian men with underlying Graves' disease.

    “It occurs more commonly amongst young Asian men with underlying Graves' disease.”

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Authors
Kung, A. W. C.
Affiliations
Queen Mary Hospital (CN)
Corresponding author
Kung, Annie W. C.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2006-07
Volume
91
Issue
7
Pages
2490-2495
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1972418047
Cited by
371
References
71
Citations by year
2026: 11 · 2025: 15 · 2024: 21 · 2023: 21 · 2022: 20 · 2021: 22 · 2020: 18 · 2019: 14 · 2018: 16 · 2017: 13 · 2016: 17 · 2015: 24 · 2014: 21 · 2013: 20 · 2012: 29
FWCI
13.00
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • The HKU Scholars Hub (University of Hong Kong) (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Potassium and Related Disorders
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
thyrotoxic periodic paralysis, hypokalemic periodic paralysis, hyperthyroidism, hypokalemia, potassium supplementation, beta-blockers, insulin response, genetic susceptibility, muscle weakness, thyroid function tests
MeSH terms
Sodium-Potassium-Exchanging ATPase, Asia, Electromyography, Graves Disease, Humans, Hyperthyroidism, Hypokalemia, Iodine Radioisotopes, Male, Muscular Diseases, Paralysis, Periodicity, Potassium, Potassium Chloride, Antithyroid Agents, Thyroid Hormones, Thyroidectomy, Thyrotoxicosis, Exercise, MEDLINE, Muscle, Skeletal, Hypokalemic Periodic Paralysis

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