Teaching NeuroImages: Obstructive sleep apnea triggered by vagus nerve stimulation
| Autor: | Filomena Fuggetta, Catello Vollono, Giacomo Della Marca, Beatrice Cioni |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Male
Sleep Apnea Obstructive Drug Resistant Epilepsy Sleep Apnea Cryptogenic epilepsy medicine.diagnostic_test Vagus Nerve Stimulation business.industry Obstructive medicine.medical_treatment Polysomnography Middle Aged medicine.disease nervous system diseases respiratory tract diseases Obstructive sleep apnea Settore MED/26 - NEUROLOGIA Humans Anesthesia medicine Neurology (clinical) business Vagus nerve stimulation |
| Popis: | A 47-year-old man with drug-resistant cryptogenic epilepsy, treated with vagus nerve stimulation (VNS), underwent polysomnography (PSG) for suspected obstructive sleep apnea (OSA). A previous PSG study, performed 1 year before VNS, had showed an apnea-hypopnea index (AHI) = 4 events/hour, but the patient reported that the activation of the VNS was associated with increase of apneas witnessed by his bed partner. PSG was consistent with mild OSA; the AHI was 14.0 events/hour. During PSG, the stimulator was active for periods of 30 seconds, generating a peculiar artifact (figure, black arrows), separated by a 3-minute interval. In 67% of the obstructive events (9.5 events/hour), the onset of the event was simultaneous or immediately followed the start of VNS activation, suggesting that VNS might trigger obstructive apneas/hypopneas1,2 (figure, white arrows). |
| Databáze: | OpenAIRE |
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