Purpura Henoch Schonlein Flashcards

1
Q

Def sinonime

A

Vasculita a vaselor mici mediate de IgA

Purpura alergica anafilactica

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2
Q

Complexele imune formate unde sunt depuse

A

In vasele mici arteriole capilare venule.activeaza complem pe calea alterna
La biopsii:prez C3 , properdinei absenta c1

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3
Q

Patogenia bolii

A

Pmn atrase chemotactic
Realiz inflamatie si necriza vasculara
Si tromboza

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4
Q

Factori trigger

A
Infectie cu streptococ grup 1 varicella
Hep b
Epstain barr parvovirup B19 mycoplasma campylobacter
Yersinia
Med:ampi;eritro;peninc;clorpromazina
Alim 
Sarcina
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5
Q

Frecv sezoniere varsta frcv

A

<9ani
Primavara, iarna, toamna
Frecv cu 10 zile inainte au manif o infect tract respir sup

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6
Q

Clinic

A

Debut acut febra purpura palpabila pe extremitatile inferioare si fese(brate rar trunchi)
Dureri abdominale frecv
Artrita
Hematurie

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7
Q

Manif cutanate

A

Purpura este simetrica, pe fetele de extensie ale membrelor ortostatica apare in pusee pruriginoasa
Micropapyle pe fond eritematos echimotic
Esem al extrem al scalpului
Unii au leziuni maculo papuloase vezicule ulceratii
Edemul subcut frecv la copii<3ani

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8
Q

Manif digestive

A

Durerile abd sunt frecv colicative si se pot agrava postprandial(angina intestinala)
Unii greturi varsat hemoragie digestiva inf si sup
Complicatii invaginatii perforactii infarct intest hemorag gastr hematemeza

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9
Q

Manif artic

A

Artralgii sau artrite la niv artic mari:genunchi si glezne si mai putin intens pumn si coate uneori cu aspect migrator

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10
Q

Manif reno urinare

A

Hamaturia frecv microscopica spre deosebire de manid gastro si artrita care preced
Nefrita apara mereu dupa afectarea cutanata

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11
Q

Alte organe afectate rar

A

Pulm rar prin hemoptizie
SNC convulsii hemoragie
Edem testicular

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12
Q

Cat dureaza?

A

Cu exceptia afect renale ..ea este autolimitata durand4 sapt (3zile-2ani)

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13
Q

Biologic

A
Leucocitoza moderata
VSH crescut( in per acuta si CRP e mare
Hematurie,proteinurie,cilindrii hematici
Creatinina normala rar IRA
IgA total crescut policlonal 60%
Crioglobulinemie
Ac antiHCV pozitivi!verif
Complement c3 C4 normale
C3 crescut indica cresterea turnover ului complementului mai apar afect rinich
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14
Q

Imuno

A

Test IgA ANCA neg
Compelxe imune IgA(IgA1 +IgA2) pot fi identif in tesuturile afectate ex glomerular
Depizite IgA biopsie de piele cu leziuni
F reumatoid IgA detectabil si creste faza acuta

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15
Q

Alte date paraclimite teste!

A

Horagii oculte in fecale+
ASTRUP;IONIGRAMA MODIF IN ASOCIEREA CU HEMATEMEZA melenadevera afect renala IRA
Eco test in dureri si edem pt excluderea torsiunii
Biops renala cand e cazul
Biop cutanata

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16
Q

Pt dg dif

A

ANA FACT REUMAT COAGULATEA(TP;TPT)

17
Q

Diag diferent:

A
Urticaria
CID
Endocardita
Pancreatita
Torsiune testiculara
Crioglibulinemia mixta
LES
Infarct /perforatie intestinala
18
Q

Trat suportiv

A

Hidratare

Inlocuirea pierderilor sangv

19
Q

Cand initiezi terapia cortizonica?

A

Proteinurie de rang nefrotic,+hematurie sau cand
Biopsia evid semilune glomerulare

*50 %cu crescens glomer in biop renala e asociata cu evolut IR in 10 ani riscuri

20
Q

Terapia doze med:

A
1MTP:(Solu-Medrol)1mg/kgc/zi
2. Prednison 1-2mg/kgc p.o
Ibuprofen 30-70mg/kg/zi p.o ca AINs articulat cu precautie tulb dig
3 trofice vasculare  Tarosin;Rudosin
Vitaminoterapie C
Calciterapie
21
Q

Dispensarizarea

A

Renala ex urina:sumar dozari proteine /24h
Addis
Se rezolvă 4-6sapt simot cutanata