Neuromyelitis Optica Spectrum Disorder Manifested by Persistent Hiccups and Severe Esophagitis in an Adolescent Patient.

Patients with persistent hiccups are often referred to gastrointestinal services. Hiccups lasting greater than 48 hours are classified as persistent, while those lasting longer than 2 months are termed intractable. The etiology of hiccups is broad and can include many organ systems. Here, we present the case of an 18-year-old male patient who presented to the emergency department with an 8-day history of nausea, emesis, and intermittent hiccups. The patient was admitted to the gastroenterology service and underwent workup including esophagogastroduodenoscopy and imaging. Esophagogastroduodenoscopy revealed severe distal esophagitis. He was started on high-dose proton pump inhibitor and sucralfate. During the course of hospital admission, the patient's intermittent hiccups worsened to become constant. Several medical therapies led to little improvement. We initially felt that the esophagitis was the etiology of the patient's symptoms, however, due to ongoing symptoms unresponsive to typical therapy, we obtained a neurological consult. Brain MRI revealed a dorsal medullary lesion. Subsequent work up confirmed the diagnosis of neuromyelitis optica spectrum disorder. Neuromyelitis optica spectrum disorder is a rare, serious, sometimes fatal autoimmune condition of the central nervous system. Early diagnosis and treatment are important predictors of future relapses. Our patient was started on high-dose intravenous steroids with rapid improvement in symptoms. He was discharged home on steroids, proton pump inhibitor and close neurology and gastroenterology follow up. This case outlines the importance of consideration of neurological causes of hiccups or other centrally mediated conditions with gastrointestinal manifestations, even when a concomitant gastrointestinal condition is present.