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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/21584
Title: Hypokalaemia and paralysis in the Thai population
Authors: Bunyong Phakdeekitcharoen
Chatuporn Ruangraksa
Piyanuch Radinahamed
Mahidol University
Keywords: Medicine
Issue Date: 1-Aug-2004
Citation: Nephrology Dialysis Transplantation. Vol.19, No.8 (2004), 2013-2018
Abstract: Background. Hypokalaemia with paralysis is a syndrome common in Thailand. This syndrome may result from hypokalaemic periodic paralysis (HypoPP), thyrotoxic periodic paralysis (TPP) or distal renal tubular acidosis (dRTA). We prospectively investigated the nature of this syndrome in afflicted Thai patiens. Methods. Blood and urine samples were collected from 47 patients during attacks for multiple biochemical and thyroid function tests. A long acid loading test was performed in all euthyroid patients. Mutation analyses were done in all HypoPP and TPP patients. Results. Of the subjects, 34 completed the study. Of those, 11 (32%), eight (24%) and 15 (44%) had TPP, dRTA and HypoPP, respectively. Patients with dRTA and TPP were older than those with HypoPP. Males were more prevalent than females in HypoPP and TPP; the reverse was true for dRTA. Two-thirds of the HypoPP cases were sporadic. The majority of the HypoPP and dRTA patient resided in northeastern Thailand. Of the 11 TPP patients, nine (82%) had no previous thyroid disease. Moreover, four out of 11 patients (36%) had subtle clinical signs of hyperthyroidism; three of eight dRTA patients had renal stones, nephrocalcinosis or both. Only two patients had metabolic acidosis at the time of presentation. No common mutations were found in the HypoPP and TPP patients. Conclusions. In most of our patients, HypoPP is sporadic and not associated with the common mutations reported previously. Clinical clues that can assist in differentiating between the causes of hypokalaemia and paralysis are age at onset, gender and geographic region residence of the patients. However, the absence of previous histories of thyroid disease or overt thyrotoxicosis, and of stone disease/nephrocalcinosis or metabolic acidosis does not exclude the diagnosis of TPP or dRTA. © ERA-EDTA 2004; all rights reserved.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=4344646657&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/21584
ISSN: 09310509
Appears in Collections:Scopus 2001-2005

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