Description Periodic paralysis is a group of muscle diseases that are related to transmembrane ion channels. Dysfunction of these channels causes an increase in sodium-potassium (Na-K) adenosine triphosphatase (ATPase) activity that pushes potassium into the cells that result in serum hypokalemia that manifests as muscle weakness. Beta-adrenergic stimulation and insulin sensitivity might also play a role. Periodic paralysis is divided into hereditary and acquired forms. Thyrotoxic periodic paralysis is an acquired form of periodic paralysis that manifests as muscle weakness, hypokalemia, and hyperthyroidism. The onset of the symptoms is mainly over the age of 20 and can be triggered by intense physical activity, stress, and excessive carbohydrate intake. This review presents the different types of this disease (hypokalemic, hyperkalemic, thyrotoxic, and Andersen-Tawil syndrome) while presenting a unique case of T3 thyrotoxicosis causing periodic paralysis.
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http://dx.doi.org/10.36518/2689-0216.1032 | DOI Listing |
Radiol Case Rep
March 2025
Department of Emergency Medicine, The Fourth Affiliated hospital of Soochow University (Suzhou Dushu Lake Hospital), Suzhou, China.
Hyperthyroidism is linked to several muscle disorders, including thyrotoxic myopathy, myasthenia gravis, and periodic paralysis. Thyrotoxic periodic paralysis (TPP) is a rare and potentially life-threatening neuromuscular condition that predominantly affects Asian males and is characterized by muscle weakness, hypokalemia, and thyrotoxicosis. Treatment involves potassium supplementation, and beta-blockers.
View Article and Find Full Text PDFEur J Case Rep Intern Med
December 2024
Internal Medicine, Holy Family Hospital, Rawalpindi, Pakistan.
Background: Andersen-Tawil syndrome (ATS) is a rare autosomal dominant disorder caused by variants in the gene. It is associated with periodic paralysis, dysmorphic features and cardiac arrhythmias. The syndrome exhibits incomplete penetrance, leading to a broad spectrum of clinical manifestations, making diagnosis challenging.
View Article and Find Full Text PDFFront Neurol
December 2024
NextGen Precision Health, University of Missouri, Columbia, MO, United States.
In Periodic Paralysis (PP), a rare inherited condition caused by mutation in skeletal muscle ion channels, the phenotype changes with age, transitioning from the episodic attacks of weakness that give the condition its name, to a more degenerative phenotype of permanent progressive weakness and myopathy. This leads to disability and reduced quality of life. Neither the cause of this phenotype transition, nor why it occurs around the age of 40 is known.
View Article and Find Full Text PDFVet Clin North Am Equine Pract
December 2024
Department of Clinical Sciences, Auburn University College of Veterinary Medicine, 1130 Wire Road, Auburn, AL 36849, USA; College of Veterinary Medicine, 1220 Wire Road, Auburn, AL 36849, USA.
Pre-existing muscle disorders in horses can often be subtle and may only become evident during or after anesthesia. Advancements in veterinary medicine, along with increased knowledge and research in this field, help minimize anesthesia-related problems. Adequate preanesthesia assessment, early disease diagnosis, and proper management are crucial in minimizing risks to the neuromuscular system during general anesthesia.
View Article and Find Full Text PDFMuscle Nerve
December 2024
Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Introduction/aims: Primary hypokalemic periodic paralysis (HypoPP) can present with periodic paralysis and/or permanent muscle weakness. Permanent weakness is accompanied by fat replacement of the muscle. It is unknown whether the permanent muscle weakness is solely due to fat replacement or if other factors affect the ability of the remaining muscle fibers to contract.
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