A Case of Secondary Narcolepsy Presenting with Obstructive Sleep Apnea Symptoms

23 Ya z›fl ma Ad re si/Ad dress for Cor res pon den ce: Dr. Sebahat Genç, Mustafa Kemal Üniversitesi Tıp Fakültesi, Göğüs Hastalıkları Anabilim Dalı, Hatay, Türkiye Tel.: +90 326 229 10 00 E-posta: segenc@hotmail.com Ge liş Ta ri hi/Re cei ved: 15.03.2016 Ka bul Ta ri hi/Ac cep ted: 30.03.2016 Bu çalışma Türk Toraks Derneği 16. Yıllık Kongresi’nde sunulmuştur (Nisan 2013. P385). © Tür k Uyku Tıbbi Der gi si, Ga le nos Ya yı ne vi ta ra fın dan ba sıl mış tır. / © Journal of Turkish Sleep Me di ci ne, Pub lis hed by Ga le nos Pub lis hing. Obstructive sleep apnea syndrome (OSAS) and narcolepsy are two diseases causing excessive daytime sleepiness (EDS). As they are often confused, these two disorders can also coexist. Therefore there is need to distinguish these disorders in patients with EDS. We would like to present a case on a patient who sent to our sleep laboratory with a preliminary diagnosis of OSAS and suspicion of narcolepsy in detailed history. The case is a 24 year-old male. He was diagnosed with OSAS and narcolepsy while being investigated for OSAS. Neurological examination revealed an additional diagnosis of multiple sclerosis. In this case report, we emphasize that in patients with EDS, particularly if EDS cannot be explained with OSAS, investigation for narcolepsy should also be done. In addition, when narcolepsy is detected; neurological examination is actually necessary considering the possibility of secondary narcolepsy.