A Successful Obstetric Outcome in a Woman With Familial Hypokalemic Periodic Paralysis: Challenges in Management

Hypokalemic periodic paralysis during pregnancy is a rare disease condition that presents during pregnancy. It manifests with acute muscular weakness associated with low potassium levels. We report a case of an antenatal woman presenting with leaking per vagina and weakness of four limbs at 33 weeks of gestation. She had similar episodes in the past but defaulted on taking oral potassium. On physical examination, she had hyporeflexia and flaccid paralysis of all limbs without sensory involvement. A neurology consultation was sought and diagnosed to have flaccid quadriparesis. Her investigations showed low serum potassium along with electrocardiography (ECG) changes. With potassium correction, her weakness improved within four days of initiating treatment. A week later, she had a spontaneous labour onset and delivered a healthy male baby. The peripartum period was uneventful. A timely diagnosis and management, avoiding precipitating factors, and preventing future attacks should be the primary goal of management.