Cited by 76Thyroid Disorders and TreatmentsPotassium and Related DisordersCardiac electrophysiology and arrhythmias

Thyrotoxic periodic paralysis

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Lam, Lien, Nair, Rajasree J., Tingle, Leslie·2006·Baylor University Medical Center Proceedings

Abstract

Thyrotoxic periodic paralysis (TPP), a disorder most commonly seen in Asian men, is characterized by abrupt onset of hypokalemia and paralysis. The condition primarily affects the lower extremities and is secondary to thyrotoxicosis. It has been increasingly reported in the USA due to the rise in the immigrant population. Hypokalemia in TPP results from an intracellular shift of potassium induced by the thyroid hormone sensitization of Na+/K+–ATPase rather than depletion of total body potassium. Treatment of TPP includes prevention of this shift of potassium by using nonselective beta-blockade, correcting the underlying hyperthyroid state, and replacing potassium. TPP is curable once a euthyroid state is achieved. It is important for physicians to distinguish TPP from familial hypokalemic periodic paralysis, a more common cause of periodic paralysis in Caucasians. The absence of a family history of paralysis, male sex, presentation in the second to fourth decades of life, and signs of thyrotoxicosis like sinus tachycardia help in the diagnosis of this disorder. Early recognition of TPP is vital to initiating appropriate treatment and to avoiding the risk of rebound hyperkalemia that may occur if high-dose potassium replacement is given.

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  1. Magsino CH Jr, Ryan AJ Jr. yrotoxic periodic paralysis. South Med J 2000;93(10):996-1003.
  2. Lin SH. yrotoxic periodic paralysis. Mayo Clin Proc 2005;80(1):99-105.
  3. Gennari FJ. Hypokalemia. N Engl J Med 1998;339(7):451-458.
  4. Lee KO, Taylor EA, Oh VM, Cheah JS, Aw SE. Hyperinsulinemia in thyrotoxic hypokalemic periodic paralysis. Lancet 1991;337(8749): 1063-1064.
  5. Yeung RT, Tse TF. yrotoxic periodic paralysis: effect of propranolol. Am J Med 1974;57(4):584-590.
  6. Shayne P, Hart A. yrotoxic periodic paralysis terminated with intrave- nous propranolol. Ann Emerg Med 1994;24(4):736-740.

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Authors
Lam, L., Nair, R. J., & Tingle, L.
Affiliations
Baylor Medical Center at Garland (US)
Corresponding author
Lam, Lien
Venue
Baylor University Medical Center Proceedings
Published
2006-04
Volume
19
Issue
2
Pages
126-129
ISSN
  • 0899-8280 (ISSN-L)
  • 1525-3252
OpenAlex
W1673358600
Cited by
76
References
27
Citations by year
2026: 4 · 2025: 5 · 2024: 7 · 2023: 7 · 2022: 7 · 2021: 10 · 2020: 12 · 2019: 5 · 2018: 3 · 2017: 2 · 2016: 4 · 2015: 4 · 2013: 1 · 2012: 1
FWCI
0.45
Type
journal article
Language
en
Open access
Locations
  • Baylor University Medical Center Proceedings (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
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, hypokalemia, thyrotoxicosis, hyperthyroidism, intracellular potassium shift, beta-adrenergic blockade, potassium supplementation, familial hypokalemic periodic paralysis, differential diagnosis, Asian immigrants

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