An Uncommon Complication of Dengue: Hypokalemic Quadriparesis Coupled with Myositis

Abstract Dengue, a major mosquito-borne infection, can rarely cause neurological complications. We report a case of a man in his early thirties presenting with fever, myalgia, and progressive limb weakness. Examination showed fever (38°C), tachycardia (110/min), absent deep tendon reflexes, muscle strength of 1/5 in all limbs, and severe muscle tenderness, with no sensory or cranial nerve involvement. Investigations revealed hypokalemia (2.2 mEq/L), thrombocytopenia (12,000/ml), elevated CPK (1174 U/L), and dengue IgM positivity. A diagnosis of dengue-associated myositis with hypokalemic paralysis was made. The patient responded well to potassium supplementation, antipyretics, and supportive care, with complete recovery within 1 week.