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 # 343: Snake Bites

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Podcast # 342: Scombroid

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Podcast # 341: Tenecteplase vs. Alteplase

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Podcast # 340: Drowning

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Author: Chris Holmes, MD Educational Pearls: Epidemiology: 80% male, ages 1-4 at greatest risk, African-American > Caucasian. Freshwater and ocean water may have more bacteria than pool water. ...

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Podcast # 339: Ectopic Pregnancy Risk Factors

Podcast # 339: Ectopic Pregnancy Risk Factors

Author: Jared Scott, MD Educational Pearls: Data is mixed, but some studies show 1-2% of pregnancies are ectopic. Risk factors for ectopic pregnancies include: pelvic inflammatory disease, prior ec...

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Podcast # 338: Mononucleosis predictors

Podcast # 338: Mononucleosis predictors

Author: Chris Holmes, MD Educational Pearls: Symptoms commonly seen with mononucleosis are palatal petechiae, posterior cervical lymphadenopathy, inguinal/axillary lymphadenopathy, splenomegaly, and/...

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Podcast # 337: Airway Burn Inhalation

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Author: John Winkler, MD Educational Pearls: Singed nasal hairs, soot around mouth, hoarse voice, drooling, and burns to head/face are signs suggestive of inhalation injury. Early intubation is cri...

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