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 CASE REPORT
Year : 2020  |  Volume : 15  |  Issue : 2  |  Page : 132-134

Primary hypokalemic periodic paralysis: Long-term management and complications in a child


1 Pediatric Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, Rishikesh, India
2 Pediatric Neurology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
3 Pediatric Neurology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India; Pediatric Neurology and Neurodevelopment, Department of Pediatrics, Medanta, The medicity, Gurugram, Haryana, India

Correspondence Address:
Dr. Renu Suthar
Pediatric Neurology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh.
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jpn.JPN_101_19

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Hypokalemic periodic paralysis (HPP) is a rare genetically determined neuromuscular disorder caused by mutation in skeletal muscles calcium and sodium channels. It presents with recurrent episodes of flaccid paralysis. A 9-year-old girl presented with recurrent episodic flaccid quadriparesis with complete recovery in-between the episodes. Investigations during the acute episode revealed marked hypokalemia with electrocardiogram changes. Next-generation sequencing showed pathogenic missense mutation in CACNA1S gene. She responded well to oral potassium supplementation, acetazolamide, and spironolactone therapy. Muscle weakness in HPP is reversible, and long-term management reduces frequency of paralysis and prevents permanent weakness.






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