Hypokalemic periodic paralysis is the most common form of periodic paralysis and is characterized by attacks of muscle paralysis associated with a low serum potassium (K+) level due to an acute intracellular shifting. Thyrotoxic periodic paralysis (TPP), characterized by the triad of muscle paralysis, acute hypokalemia, and hyperthyroidism, is one cause of hypokalemic periodic paralysis. The tr...

Rhabdomyolysis continues to appear with increasing frequency and represents a medical emergency requiring rapid appropriate treatment. One of the unusual causes of nontraumatic rhabdomyolysis is hypokalemic periodic paralysis without secondary causes. Primary hypokalemic periodic paralysis is a rare genetic disease characterized by episodic attacks of muscle weakness due to decreases in serum p...

Objectives. To describe 2 cases of thyrotoxic periodic paralysis. Methods. We report of 2 cases of thyrotoxic periodic paralysis in 2 individuals from 2 different backgrounds with emphasis on their presentation and treatment. We also conducted a literature search to put together an update review of thyrotoxic periodic paralysis. Results. A 47-year-old Chinese and 28-year-old Caucasian male pres...

Acute hypokalemic periodic paralysis (HPP), a clinical syndrome characterised by acute systemic weakness and low serum potassium (K+), is a rare but treatable cause of acute limb weakness. Hypokalemia can be caused by K+ loss via the kidneys or extra renal routes mainly the gut, or due to transcellular potassium shifts where extracellular K+ will move into the cell. In the latter situation, alt...

CECILIA V. ROJAS,1 ALAN NEELY,2 GABRIELA VELASCO-LOYDEN,1 VERÓNICA PALMA,3 AND MANUEL KUKULJAN3 1Instituto de Nutrición y Tecnologı́a de los Alimentos, Universidad de Chile, Casilla 138-11, Santiago; and 3Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Casilla 70005-7, Santiago, Chile; and 2Department of Physiology, Texas Tech University Health Sciences Center, Lubb...

We examined the ability of local anesthetics to correct altered inactivation properties of rat skeletal muscle Na+channels containing the equine hyperkalemic periodic paralysis (eqHPP) mutation when expressed in Xenopusoocytes. Increased time constants of current decay in eqHPP channels compared with wild-type channels were restored by 1 mM benzocaine but were not altered by lidocaine or mexile...

Neurology S. L. Venance, K. Jurkat-Rott, F. Lehmann-Horn and R. Tawil SCN4A-associated hypokalemic periodic paralysis merits a trial of acetazolamide This information is current as of November 24, 2007 http://www.neurology.org/cgi/content/full/63/10/1977 located on the World Wide Web at: The online version of this article, along with updated information and services, is All rights reserved. Pri...

Cliff W. Hampton, Joseph R. Sweigart, Susan M. Nikels, Michael Hanley 1 Internal Medicine, University of Colorado Denver, Aurora, CO, United States. 2 Pulmonary Sciences & Critical Care Medicine, University of Colorado Denver, Aurora, CO, United States. (Control ID: 1327979) Learning Objective 1: Recognize thyrotoxic periodic paralysis as an uncommon complication of thyrotoxicosis Learning Obje...

Unilateral vocal fold paralysis is a common clinical problem which frequently causes severe dysphonia. Various treatment options exist for this condition, with the type I thyroplasty being one of the more commonly performed surgical procedures for vocal rehabilitation. The Voice-Related Quality of Life (V-RQOL) Measure is a validated outcomes instrument for voice disorders. This study measured ...