Update on Idiopathic Hypersomnia : S8-Ep1

Idiopathic hypersomnia is sometimes regarded as the stepchild of narcolepsy. But it may be more common than its better known relation. In this podcast, we discussed the diagnosis and management of this elusive disorder. 0:00 – Welcome to Mayo Clinic Sleep Medicine Podcast 0:39 – What is idiopathic hypersomnia? 1:12 – Guest introduction: Dr. Maggie Blattner 1:27 – Is idiopathic hypersomnia a diagnosis of exclusion? 1:49 – Heterogeneity and clinical phenotypes of IH 3:19 – Diagnostic criteria and ICSD‑3 overview 4:53 – Sensitivity and reliability of MSLT in IH 6:29 – Long sleep duration as an alternative diagnostic criterion 7:44 – Role of actigraphy vs. 24‑hour sleep studies 9:35 – Practical challenges of prolonged sleep testing 11:28 – Classic IH phenotype with long sleep 12:26 – Hypotheses about underlying mechanisms of IH 13:02 – Sleep drive, GABA signaling, and inflammation 14:05 – Circadian rhythm involvement 15:26 – Differentiating IH from chronic fatigue syndrome 16:59 – Stimulants and wake‑promoting medications 18:33 – Low‑sodium oxybate for idiopathic hypersomnia 20:54 – Clarithromycin: evidence and concerns 24:44 – Need for controlled trials 25:04 – Closing remarks 25:47 – Podcast wrap‑up and sign‑off From Mayo Clinic to your inbox, sign-up for free: https://mayocl.in/3e71zfi Visit Mayo Clinic: https://mayocl.in/2COVmlm Like Mayo Clinic on Facebook: https://www.facebook.com/mayoclinic/ Follow Mayo Clinic on Instagram: https://www.instagram.com/mayoclinic/ Follow Mayo Clinic on X, formerly Twitter: https://x.com/MayoClinic Follow Mayo Clinic on Threads: https://www.threads.net/@mayoclinic