Vih Flashcards

1
Q

Cellules cibles du VIH

A

Cellule possedant prot mb GP120
et coRecepteurs CXCR4 et CCR5

LTCD4
Monocyte
Macriphage
C dendritique
C langherance
C microglie cerebarle
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2
Q

Quand proposer serologie VIH

A
Symptome clinique ou bio evoque primoinf
Tuberculose
Ist. VHC
Projet grossesse
Viol
Contraceotion
IVG
Don sang et d'organe
Incarceration
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3
Q

Primoinfection VIH
CLINIQUE ET BIO
QUAND SUSPECTER

A
Clinique symptom 75%
Fievre
Sd pseudogrippal>7j
Asthenie
Polyadn
Pharyngite
Eruption maculopapuleuse 
Ulceration buccale ou genitale
Candidose orale
Diarrhee, nausee, vomi, dlr abdo
Meningite lymphocytair
Paralysie faciale
Pneumopathie intertielle
BIO
thrombopenie 75%
Leucopenie 50%
Lymphopenie ou SD MNI
cytolyse hepatique
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4
Q

Phase chronique VIH
manif clinique
Bio

A

INCONSTANTS

CUTANEOMUQUEUX: dermatite seborrheique, confylome hpv, molluscum contagiosum, candidose, leucoplasie chevelu lg
AEG
Fievre
Sueurs nocturnes
Diarrhees chronique

BIO
leuconeutropenie
Thrombopenie
Hypergamma polyclonal

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5
Q

Pathologies opportunistes en fonction CD4
500-200
200-100
<100

A
500-200 CD4
Candidose orale
Tuberculose
Kaposi
Lymphome

200-100
Candidose oesophagienne
Pneumocystose

<100
Toxo cerebrale
CMV
cryptococvose neuromeninge
Mycobacterie atypique
LEMP JC VIRUS
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6
Q

Infections non opportunistes a penser si vih+

A

Pneumopathie pneumocoque et hib influenza: vaccin pnQ
DIG : salmonella et campylobacter
GRIPPE : vaccin
IST : syphylis, gonocq, LGV chlamydia, HPV condylom
VHB 7%
VHC 20%

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7
Q

Candidose oesophagienne vih

Clinique dg

A

<200 cd4

Dysphagie, dlr retrosternales

Dg clinique
Ou si doute prelevelent
Signe endoscopiq evocateur : depot blanchatre, miquese erythemateuse

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8
Q

Toxoplasmose cerebral

Clinique
Dg +

A

<200 cd4

Deficit neuro FOCAL
TOUT TABLEAU NEURO SI VIH+
Cephalee, epilepsie
+/- fievre

TDM- IRM C
ABCES svt multiples
Aspect cocardes ap injection
Halo hypodense oedeme
Si sero neg: dg peu probable

Pcr ds lcr si doute sp peu se

Test ttt
Si echec biopsie abces

Ttt: SI CD4<100 et IGG+
COTRIMOXAZOLE BACTRIM
jusque cd4>200 >6 m

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9
Q

Cryotococcose vih

Clinique et dg

A

Champignon

Meningite encephalite progressive
Cephalee, fievre, sd meninge, htic
Dissemine : pulm, urinaire, cutane

Dg+ : LCR : faible cellularite, encre chine ex direct et culture
Ag ds sang et lcr
Irm normal

Prevention seilement secondaire
Fluconazol PO

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10
Q

LEMP leuco encephalopathie multifocal progressiv

Virus JC

A
Vih, cd4<100
Demyelinisant sb blanche
Tb neuro progressif
Deficit mo et se
Tb cognitif
Sd cerebelleux

IRM
hyper t2
Pas de prise de contraste, pas oedeme, pas effet masse

Pas de prevention

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11
Q

Infection CMV ET VIH

A

Retinite cmv
Necrose hemorragique retine
+/- digestif, neuro

Dg
Pcr cmv si sero+
Endoscopie : kesion dig?

Prevention primaire: cd4<100 et sero cmv+
Surveillance pcr clv et FO regulier

Secondaire
Vaganciclovir pr cd4>100

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12
Q

Kc classant sida

A

Lymphome malin non hodg’inien
Cd4>200 forme gg et si <100 extraggtjbe dig et cerveau
Burkitt asso ebv++

KAPOSI
Hhv8
Lesions cut infiltre violace, nodulaire, plaque, muquese dg clinique et histo

KC COL UTERIN
Fcv/an et colposcopie si doute

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13
Q

Ttt vih
But
Examen obigatoire pour ttt

A

2 INTI + IP/INNTI/II

POUR CV <50 c/ml= indetectable

Tout le monde apres test genotypage viral!!!

Trittt a VIE

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14
Q

5 Inhib nucleosidique transcriptase i verse et ei

A

ZIDOVUDINE : cytopenie
LAMIVUDINE OU EMTRICITABINE : rein
ABACAVIR: sd hypersensibilite : depistage allele favorisant reacion hla5701 qui ci ce ttt
TENOFOVIR. Nephrotoxicite prot, dfg, ph

TB DIG TJR
PAS INTERACTION MEDICAMENTS

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15
Q

INNTI

EI

A

Nevibarine : hepatite cytolytique
Transax2/ sem pdt2 m

EFARIRENZ : ci gross, tb neuropsy

ETRAVIRINE

RILPIVIRÔNE : IM av IPP ( dc ci)

RASH CUATNEE 6 sem
IM : p450 : POP, RIFAMPICINE, IP

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16
Q

IPROTEQSE

EI

A

Atazanavir, ritonavir : bili, lithiase, IM iPp
Ritonavir, darunavir : rash cut

Tb dig
Tb metamilique
Hepatite med
INDUCTEUR EZ. IM

17
Q

Inhib de integrase

A

Raltegravir
Dolutegravir
Elvitegravir

Peu EI :)

Subit interaction medic comme rifampicine
Faible metabo hepatique

18
Q

Toxi long terme antiretroviraux

A
Lipodystrophie
Cytopathie mitochondrial
Tox cardiovasculaire
Tox renale
Tox oss : osteoporose
Tox metabolique
19
Q

Bilan a l’initiation PEC VIH+

A
Typage ltcd8/4
Arn VIH CV
COINFECTION 
Vhb
Vhc
Vha
Tpha vdrl
Frottis cervicovag
Ex procto si atcd codylomes ou sex anal
Toxo
Cmv

DEPISTER BK si CD4<200 ou atcd ou expo bk
RT IGRA

PRETTT
NFSP
transa, ggt, pal
Creat
BAL
bu av proteinurie
ECG si frcv ou>50 a
GENOTYPAGE VIH
HLA B5701
DMO
20
Q

Vaccin et VIH

A

Vaccin vivant ci <200

Ci TJR BCG