Podcast #318: Nystagmus

Podcast #318: Nystagmus

Author: Erik Verzemnieks, M.D.


Educational Pearls:

● Common causes of nystagmus: Congenital disorders, CNS diseases (MS, CVA), Intoxication

● Drugs associated (ETOH, Ketamine, PCP, SSRI, MDMA, Lithium, Phenytoin, Barbiturates)

● If a patient has nystagmus and is intoxicated, consider other drugs and etiologies as potential sources

References:
Alpert JN. (1978). Downbeat nystagmus due to anticonvulsant toxicity. ​Annals of

Neurology.​ 4(5):471-3.
Rosenberg, ML. (1987) Reversible downbeat nystagmus secondary to excessive

alcohol intake. ​Journal of Clinical Neuroophthalmology​. 7(1):23-5.

Weiner AL, Vieira L, McKay CA, Bayer MJ. (2000). Ketamine abusers presenting to the emergency department: a case series. ​Journal of Emergency Medicine.​ 18(4):447-51.

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Podcast # 482: Tetracyclines and Hyperpigmentation

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Podcast # 478: Psychedelics and Depression

Podcast # 478: Psychedelics and Depression

Author: Chris Holmes, MD Educational Pearls: Hallucinogenic drugs have been in use since ancient times for both medical and recreational purposes Ayahausca is an ancient psychedelic with origins in B...

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Podcast # 477: Postpolypectomy Electrocoagulation Syndrome

Podcast # 477: Postpolypectomy Electrocoagulation Syndrome

Author: Nick Hatch, MD Educational Pearls: Postpolypectomy electrocoagulation syndrome (PES) is a rare complication of polypectomy and electrocautery during colonoscopy Occurs when cautery causes tr...

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Podcast # 476: Evidence for Patient Satisfaction

Author: Dylan Luyten, MD Educational Pearls: Actual wait times are weakly correlated to patient satisfaction but the difference between perceived/expected wait times and actual wait times is strongly...

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Podcast # 475: Orthostatic Vital Signs and Syncope

Podcast # 475: Orthostatic Vital Signs and Syncope

Author: Michael Hunt, MD Educational Pearls: A recent study evaluated the relationship between abnormal orthostatic vital signs and serious outcomes within 30 days in patients over 60 presenting to t...

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