A rare case of peripheral facial paralysis associated with meningococcal meningitis - case report

Introduction. Meningococcal meningitis is a severe form of bacterial meningitis caused by the bacterium Neisseria meningitidis (N. meningitidis). It is a medical emergency and requires prompt treatment to prevent severe complications or death. Peripheral facial paralysis is one of the rare complications that can occur in this condition. Aim. This paper aimed to draw attention to the possibility of an unexpected complication in a child with meningococcal meningitis, which requires prompt clinical and paraclinical management. Materials and methods. We present the case of a 2-year and 8-month-old female patient who, in the context of meningococcal meningitis, develops peripheral facial paralysis, a very rare complication, especially in the pediatric population. Results. The patient initially presented with clinical and paraclinical signs of a respiratory viral infection. However, in a febrile context, she has two generalized tonic-clonic paroxysmal episodes, characterized by gaze fixation, each lasting 2-3 minutes, followed by spontaneous recovery. Laboratory tests revealed neutrophilia, anemia, and elevated inflammatory markers, while the cranio-cerebral CT scan showed no structural changes. Blood cultures were also collected, and treatment was initiated with third-generation cephalosporin antibiotics, along with supportive and symptomatic therapy. The following day, the patient exhibited signs of right-sided peripheral facial paralysis, and intravenous corticosteroid therapy was added to the treatment. Approximately 24 hours after admission, the blood culture tested positive for gram-negative cocci, suggesting meningococcal meningitis. A cerebral MRI was performed, revealing changes indicative of acute meningoencephalitis. The clinical and paraclinical course was slowly favorable, with a slight persistence of facial asymmetry and intermittent ataxic syndrome. Conclusions. Meningococcal meningitis remains a relevant pathology in the pediatric population, able of causing severe complications that can result in long-term disability for the patient. Prompt treatment is crucial when this condition is suspected.