Successful microvascular decompression surgery for dolichoectatic vertebral artery compression of medulla oblongata in a patient with hypersomnia disorder.

One of the rare causes of sleep apnea is medulla oblongata compression by a vascular loop. Vertebrobasilar dolichoectasia may cause this phenomenon probably and should be reviewed in imaging examinations more precisely. Microvascular decompression by using a synthetic Teflon patch may be helpful in management of these patients.