Andersen-Tawil syndrome (ATS) is characterized by a triad of: episodic flaccid muscle weakness (i.e., periodic paralysis); ventricular arrhythmias and prolonged QT interval [ncbi.nlm.nih.gov]

However he never reported any episode of muscular weakness. [japi.org]

Episodic weakness is secondary to abnormalities in sarcolemmal excitability due to dysfunctional ion channels. [scielo.br]

Pyridostigmine relieved episodic weakness in a family with paramyotonia congenita resulting from the R1448C mutation in the sodium channel gene. [ncbi.nlm.nih.gov]

episodic weakness. [ncbi.nlm.nih.gov]

A patient with paramyotonia congenita, a related disorder with myotonia and episodic weakness, was studied during treatment with acetazolamide. [ncbi.nlm.nih.gov]

Disappearance of episodic weakness during pregnancy and an increase in myotonia after delivery have not been reported in hyperkalemic periodic paralysis (hyperPP). [ncbi.nlm.nih.gov]

Abstract Hyperkalemic periodic paralysis (hyperKPP) and paramyotonia congenita (PC) are genetic muscle disorders sharing the common features of myotonia and episodic weakness [ncbi.nlm.nih.gov]

Small elevations in serum potassium lead to inactivation of sodium channels, causing episodic weakness or paralysis. [ncbi.nlm.nih.gov]

RESULTS: The two most common hyperkalemic periodic paralysis (HyperPP) mutations responsible for episodic attacks of weakness or paralysis, T704M and M1592V, showed clearly [ncbi.nlm.nih.gov]

Results: The two most common hyperkalemic periodic paralysis (HyperPP) mutations responsible for episodic attacks of weakness or paralysis, T704M and M1592V, showed clearly [neurology.org]

Hypokalemic periodic paralysis is a condition that causes episodes of extreme muscle weakness typically beginning in childhood or adolescence. [ghr.nlm.nih.gov]

The affected patients typically present with episodic weakness. [ncbi.nlm.nih.gov]

We report a rare case of episodic limb weakness caused by a tentorial dural arteriovenous fistula (DAVF) draining into the perimesencephalic veins. [ncbi.nlm.nih.gov]

All affected members suffered from episodic weakness; myotonia was also common. [ncbi.nlm.nih.gov]

The affected patients typically present with episodic weakness. [ncbi.nlm.nih.gov]

Andersen-Tawil Syndrome (ATS) is a rare potassium channel disorder, characterized by episodic weakness, ventricular arrhythmias and dysmorphic features (short stature, scoliosis [ncbi.nlm.nih.gov]

Abstract Hypokalemic periodic paralysis (HypoKPP) is a dominantly inherited channelopathy of skeletal muscle in which recurrent episodes of severe weakness are often provoked [fasebj.org]

Hypokalemic periodic paralysis is a condition, characterized by episodic weakness of the skeletal muscle. It may be presented as familial or sporadic (secondary). [ncbi.nlm.nih.gov]

Respondents who had experienced a symptomatic VRTI episode were asked specific questions aimed at quantifying health care use and self-care practices. [doi.org]

the presence of the disorder in siblings, frequent hypoglycemia, cardiac enlargement, and muscle weakness. [nejm.org]

[…] little or no fever and usually lasting about 1 week. .. not referring to ‘the flu,' which is usually characterized by high fever, headache, overall body aches, pains, and weakness [doi.org]

The follow-up period (2–35 months) in patients without KCNJ18 variants showed that episodic weakness did not recur after remission of hyperthyroidism. [bmcneurol.biomedcentral.com]

We describe a 37-year-old man with a 4-month history of episodic muscular weakness, involving mainly lower-limbs. [ncbi.nlm.nih.gov]

Thyrotoxic periodic paralysis is a rare and potentially lethal neuromuscular disease that manifests as recurrent episodic muscle weakness associated with hypokalemia and thyrotoxicosis [ncbi.nlm.nih.gov]

RESULTS: The nine affected members had episodes of muscle weakness reminiscent of both hyperPP and hypoPP. [ncbi.nlm.nih.gov]

Hypokalemic periodic paralysis is a condition that causes episodes of extreme muscle weakness typically beginning in childhood or adolescence. [ghr.nlm.nih.gov]

Chloride channelopathies are not associated with episodic weakness and are discussed in more detail in the articles on myotonic disorders. [emedicine.medscape.com]