9- Derm - Viral infections - VZV Flashcards Preview

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Flashcards in 9- Derm - Viral infections - VZV Deck (11)
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1
Q

two derm diseases caused by VZV

A

chicken pox

shingles

2
Q

c pox - transmission? incubation time? infective period?

A

droplet
2-3wk incubation
infective 4d before, until all lesions scabbed

3
Q

c pox - Sx

A

fever, malaise, headaches, then vesicles with crusting on trunk, face, scalp - lasts 1-2 weeks

4
Q

c pox complications more common in adult infections

A

pneumonia, hepatitis, encephalitis

5
Q

c pox other complications

A

disseminated infection in immcomp

2% risk of foetal damage in first 20 weeks of pregnancy

6
Q

c pox mgmt

A

adult/immcompr -> oral aciclovir

7
Q

Shingles - pathology? Sx? length?

A

reactivation of VZV in dorsal root ganglia

pain/tingling preceded by eruption of vesicles in dermatomal distribution (lasts 1-2 weeks)

8
Q

shingles - where? 1 important feature?

A

commonly thoracic then cervical

patients are infectious

9
Q

neuro complications of shingles

A

CN palsies
post-herpetic neuralgia- occurs in 30%
vestibulocochlear involvement - Ramsay Hunt syndrome

10
Q

other complications of shingles

A

secondary infection
eye complications - Herpes Zoster Ophthalmicum
Encephalitis and meningitis

11
Q

shingles mgmt

A

severe? immcompr? > oral aciclovir

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