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HEMATURIAHEMATURIAPROTEINURIAPROTEINURIA
Camelia IONESCUCamelia IONESCUCentrul de Medicina InternaCentrul de Medicina Interna ± ± Nefrologie FundeniNefrologie Fundeni
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HEMATURIAHEMATURIA
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HEMATURIAHEMATURIA
DefinitieDefinitie:: eliminarea prin urina de hematii
ClasificareClasificare:: H. macroscopica (1ml sange / l urina)
H. microscopica ( > 4 hematii / mm3 urina)
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HEMATURIAHEMATURIA
Algoritm de diagnosticAlgoritm de diagnostic
Evidentierea hematuriei
± Teste calitative: sumar de urina
± Teste cantitative: Addis, Stansfeld -Webb
± Teste semicantitative: MO, prezenta hematiilor
dismorfice (microscopie in contrast de faza)
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HEMATURIAHEMATURIA
Algoritm de diagnosticAlgoritm de diagnostic
Evidentierea hematuriei
± Hematurie nonglomerulara
2 posibilitati de hematurie nonglomerulara
1. Cu un singur tip de celula
2. 2 populatii de hematii
- o populatie de celule hemoglobinizate uniform- o populatie de celule cu un continut mai redus
de hemoglobina (secundar lizei in urina acida)
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HEMATURIAHEMATURIA
Algoritm de diagnosticAlgoritm de diagnostic
Evidentierea hematuriei
± Hematurie glomerulara
Prezenta hematiilor dismorfice (microscopie
in contrast de faza)
± Celule normal hemoglobinizate
± Celule cu membrana densa
± Acantocite
± Celule ³helmet´
* Prezenta a 3 sau mai multe tipuri de celule indica
hematurie glomerulara
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HEMATURIAHEMATURIA
Algoritm de diagnosticAlgoritm de diagnostic
Metode imagistice
± Ecografie renala, doppler ± UIV, CT, RMN
± Scintigrama renala
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HEMATURIAHEMATURIA
Algoritm de diagnosticAlgoritm de diagnostic
Evidentierea altor simptome/semne
urinare
± Proteinurie
± Leucociturie si/sau piurie
Punctie biopsie renala ± De electie in hematuriile glomerulare
± Dificil de indicat in hematuria asimptomatica!
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HEMATURIAHEMATURIA
Diagnostic diferentialDiagnostic diferential::
H. reale
± H. de cauza renala
± H. de cauza extrarenala
Pseudohematurii
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HEMATURIAHEMATURIA
PseudohematuriiPseudohematurii
Hemoglobinurie: ± anemii hemolitice
Mioglobinurie: ± traumatisme cu distructie de masa musculara
Medicamente: ± rifampicina
± procainamida
± laxative
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HEMATURIAHEMATURIA
PseudohematuriiPseudohematurii
Exces de BD si urobilinogen: ± ictere hemolitice
±
hepatite virale
Pigment melanic: ± melanosarcom
Uretroragie: ± traumatisme
± infectii (gonoree)
± neoplasm
± iatrogen (manevre instrumentale)
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HEMATURIAHEMATURIA
Hematuria de cauza extrarenalaHematuria de cauza extrarenala
Diateze hemoragice:
± tulburari de coagulare
± tratament anticoagulant
Siclemia
Efortul fizic
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HEMATURIAHEMATURIA
Hematurii de cauza renalaHematurii de cauza renala H. izolate:
afectiuni ale tractului urinar si prostatei:
± litiaza
± tumori benigne si maligne
± TBC
± traumatisme
± medicamente
± prostatite
afectiuni ale parenchimului renal:
± hematuria benigna recurenta
alte afectiuni
± BPADA, alte boli chistice renale
post biopsie renala
± in 100% din cazuri; macroscopica in 10% din cazuri
± mai frecventa in biopsia grefei vs. rinichi nativ (9,9 vs. 4,8%)
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HEMATURIAHEMATURIA
Hematuria de cauza renalaHematuria de cauza renala
H. asociata cu proteinurie:
± glomerulonefrite
± nefropatii tubulointerstitiale ± vasculite
H. asociata cu leucociturie si / sau piurie:
± Infectii de tract urinar inferior ± pielonefrite:
specifice (TBC, fungi)
nespecifice
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HEMATURIAHEMATURIA
Glomerulopatii asociate cu episoade de hematuria francaGlomerulopatii asociate cu episoade de hematuria franca
Cronic:
- Nefropatia IgA
- GN mezangiocapilara
- Sd. Alport
- Boala membranelor bazale subtiri
Acut:
- Sd. nefritic acut (GNADPS)
- GN crescentica rapid progresiva
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HEMATURIAHEMATURIA
In nefropatia IgAIn nefropatia IgA
HSP
H. macroscopica
H. microscopica
IRC
Sd. Nefrotic
Hipertensiune
0 10 20 30 40 50 60ani
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HEMATURIAHEMATURIA
In GN poststreptococicaIn GN poststreptococica
hematuriahematuria = semn clinic universal de boala
Asociaza:
- cilindrii hematici
- proteinurie < 2g/24h
- IR (in 75% din cazuri, usoara/moderata)
! In 4% din cazurile de infectii de tract respirator nonstreptococice
poate apare hematurie microscopica.
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HEMATURIAHEMATURIA
In GN poststreptococicaIn GN poststreptococica
GN poststreptococica Nefropatia IgA
Timp mediuinfectie/hematurie 10 zile < 5 zile
Istoric de hematuriemacroscopica recurenta
rar frecvent
Nivel C3 si C4 seric scazut normal
Titrul ASLO crescut normal
Exudaf faringian pozitiv negativDepunere mesangiala IgA absenta prezenta
Hematurie persistenta sauprogresiva, proteinurie siIR post infectie
neobisnuit comun
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HEMATURIAHEMATURIA
In Sd. AlportIn Sd. Alport
Nefropatie ereditara caracterizata prin nefrita progresiva si
pierderea neurosenzoriala a auzului.
hematuria microscopica persistentahematuria microscopica persistenta = cheia de diagnostic
Asociaza:
- proteinurie
- IR
- surditate neurosenzoriala
- tulburari oculare
- trombocitopenia cu trombocite gigante
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PROTEINURIAPROTEINURIA
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PROTEINURIAPROTEINURIA
Proteinurie ± prezenta proteinelor in urina
* < 30 mg/zi ± proteinurie fiziologica (NORMAL)
* > 300 mg/zi ± proteinurie patologica
* 30 ± 300 mg/zi - microalbuminurie (PATOLOGICA)
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MicroalbuminuriaMicroalbuminuria-- semn precoce de afectare renala in HTAE semn precoce de afectare renala in HTAE --
Afectarea renala in HTAE
Rata excretiei
urinare dealbumina
Rata excretiei
urinare nocturnede albumina
Albumina/creatinina*
Macroalbuminurie
(nefropatie manifesta)
> 300 mg/zi > 200 Qg/min > 25 mg/mmol
Microalbuminurie 30 ± 300 mg/zi 20 ± 200 Qg/min 2,5 ± 25 mg/mmol (B)3,5 ± 25 mg/mmol (F)
Normoalbuminurie < 30 mg/zi < 20 Qg/min < 2,5 mg/mmol (B)
< 3,5 mg/mmol (F)
* Recoltare din prima urina de dimineata
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MicroalbuminuriaMicroalbuminuria
Afectarea renala in HTAE
HTAE
- semn precoce de nefroangioscleroza
- factor de risc cardiovascular
- defineste grad de risc inalt pentru
mortalitatea cardiovasculara precoce
DZ tip 1
- factor de risc in progresiunea bolii renale
- cel mai precoce semn de nefropatie
DZ tip 2
- factor de risc cardiovascular
- defineste grad de risc inalt pentrumortalitatea cardiovasculara precoce
Bakris GL. J Clin Hypertens 2001; 3 (2): 99-102
Alte situatii in care apare microalbuminurie:
- permeabilitate vasculara anormala
- ateroscleroza
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Screening pentru proteinurie: Urilux S
DETECTIA MICROALBUMINURIEIDETECTIA MICROALBUMINURIEI
Microalbuminuria
Test rapidMicral cu anticorpi
monoclonali anti-albumina umana (IgG)
marcati cu aur coloidal
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PROTEINURIAPROTEINURIA
Determinarea proteinuriei pe dipstick
Eliminare urinara de proteine > 300mg/zi
Eliminare urinara de proteine in urina normala concentrata
pana la un + pe dipstik.
Urina alcalina - raspuns fals pozitiv pentru proteinurie pe
dipstick.
* Determinarea pe dipstick identifica, in principal, albuminuria si nu
detecteaza proteinuria cu lant usor sau proteinele mici din tubii renali
lezati.
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieDeterminare pe dipstick: > 1+
Determinare calitativa prin precipitare cu acid sulfosalicilic ±reactie pozitiva
Determinare cantitativa a eliminarilor urinare/24h - > 300mg
Electroforeza proteinelor urinare
Imunelectroforeza proteinelor urinare
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatie
Determinare cantitativa a eliminarilor urinare/24h - > 300mg
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatie
Determinare cantitativa a eliminarilor urinare/24h - > 300mg
Proteinurie de rang nefrotic > 3,5 g/zi
sustinuta, 4 sapt = SINDROM NEFROTIC
nesustinuta = SINDROM NEFRITIC ACUT
Proteinurie masiva 2 ± 3,5 g/zi
Proteinurie moderata 1 ± 2 g/zi
Proteinurie minima < 1 g/zi
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieDeterminare pe dipstick: > 1+
Determinare calitativa prin precipitare cu acid sulfosalicilic ±reactie pozitiva
Determinare cantitativa a eliminarilor urinare/24h - > 150mg
Electroforeza proteinelor urinare
Imunelectroforeza proteinelor urinare
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieElectroforeza proteinelor urinare
Proteinurie > 3,5 g/zi, sustinuta 4 sapt. = SINDROM NEFROTIC
- Albumina 100% = sindrom nefrotic inalt selectiv
- Albumina > 80% = sindrom nefrotic selectiv
Intotdeauna glomerulara!
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieElectroforeza proteinelor urinare
Proteinurie 2 ± 3,5 g/zi = PROTEINURIE MASIVA
- Albumina > 60% (compozitie similara celei sangvine)
Proteinurie 1 ± 2 g/zi = PROTEINURIE MODERATA
- Predominenta albumina = origine glomerulara
- Predominenta globulinelor = origine tubulara
Glomerulara!
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieElectroforeza proteinelor urinare
Proteinurie < 1 g/zi = PROTEINURIE TUBULARA
- Predominenta globuline
Tubulara!
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieDeterminare pe dipstick: > 1+
Determinare calitativa prin precipitare cu acid sulfosalicilic ±reactie pozitiva
Determinare cantitativa a eliminarilor urinare/24h - > 150mg
Electroforeza proteinelor urinare
Imunelectroforeza proteinelor urinare
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatie
Imunelectroforeza proteinelor urinare
IgMIgM ± ± mielom multiplumielom multiplu
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PROTEINURIAPROTEINURIA
Algoritm de investigatieAlgoritm de investigatieDeterminarea cauzei proteinuriei
Metode imagistice: ecografie
Punctie biopsie renala
in proteinuriile moderate, masive
Alte investigatii specifice: depistarea hematuriei, IR,
imunologice, etc.
* Proteinuriile datorate efortului fizic sau ortostatismului
pot fi excluse prin analiza urinei de dimineata.
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PROTEINURIAPROTEINURIA
Clasificare (1)Clasificare (1)
Provenienta si compozitie:
± proteine de origine plasmatica (60%): albumina (40%; 25mg/zi) IgG (5-10%; 1,98mg/zi)
IgA (3%; 0,54mg/zi)
IgM, lanþuri usoare (5%; 3,5mg/zi)
diverse
± proteine si glicoproteine provenite din tubii sicaile urinare:
glicoproteina Tamm-Horsfall (30-60mg/zi)
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PROTEINURIAPROTEINURIA
Clasificare (2)Clasificare (2)
Selectivitate
± Indice de selectivitate = Cl IgG / Cl alb
±Proteinurie ±
selectiva: IS < 10%» semnificã leziune glomerularã
neselectiva: IS > 20%
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PROTEINURIEPROTEINURIE
Clasificare (3)Clasificare (3)
Debit pe 24h P. masiva > 3,5g/zi = sd. nefrotic
P. mare 2-3,5g/zi = glomerulopatie P. moderatã < 2g/zi:
± cu predominenta albuminelor:
» nefropatii glomerulare
» nefropatii tubulointerstitiale
±cu predominenta globulinelor:
» nefropatii tubulointerstitiale
± cu varf de IgM:
» gamapatie monoclonalã
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PROTEINURIAPROTEINURIA
Cauze (1)Cauze (1)
PROTEINURIE NEPATOLOGICA
± TRANZITORIE BENIGNA: < 1g/zi, sex M, tânãr
± FUNCTIONALA: < 2g/zi
Factori favorizanti:
± hiperlordoza
± efort fizic
± febra ± expunere la cãldurã
± ORTOSTATICA: < 1-2g/zi
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PROTEINURIAPROTEINURIACAUZE (2)CAUZE (2)
PROTEINURIA PATOLOGICA
±
PRERENALA: perfuzii cu proteine sau derivate proteice
hemoliza acuta
distructie tisulara severa
sindroame proliferative (MM, LLC, limfoame)
Nu exista afectare glomerulara sau tubulara asociata !
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PROTEINURIAPROTEINURIA
CAUZE (3)CAUZE (3)
PROTEINURIE PATOLOGICA
± GLOMERULARA:
Glomerulonefrite primitive:
± leziuni minimale
± hialinoscleroza focala si segmentala
± membranoasa
± membranoproliferativa
Glomerulonefrite secundare:
± infectioase: streptococ, VHB, VHC
± boli sistemice: LES, Henoch-Schonlein
± neoplazii: b. Hodgkin, leucemii, carcinoame
± diabet zaharat
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PROTEINURIAPROTEINURIA
CAUZE (4)CAUZE (4)
PROTEINURIE PATOLOGICA
± TUBULARA:
Propriu - zisa:
± congenitala: sd. Fanconi, sd. Bartter
± dobandita:
» substante chimice: Cd, Hg, As, organomercuriale
» medicamente: aminoglicozide, AINS, fenitoin,penicilamina
» boli sistemice: LES, Sjogreen, sclerodermie» infectii: pielonefrita cronicã
» nefropatia endemicã balcanicã
Secretorie: pielonefrite
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PROTEINURIAPROTEINURIA
CAUZE (5)CAUZE (5) PROTEINURIE PATOLOGICA
± PRIN PIERDERI URINARE DE PROTEINE CONSECUTIV
DISTRUCTIEI DE TESUTURI: Histuria:
± abces renal
± infarct renal
± necrozã papilarã
Chiluria: ± sarcina
± traumatism renal
± cancer renal
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PROTEINURIAPROTEINURIA
in diverse glomerulopatiiin diverse glomerulopatiiProteinurii nefrotice
La copil: GN cu leziuni minimale (sd. nefrotic pur)
La tanar: GSFS primitiva (sd. nefrotic impur)
La adult: GN membranoasa (sd. nefrotic impur)
La varstnic: Nefroangiscleroza
Sd. nefrotic asociat cu hipotensiune = amiloidoza renala
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PROTEINURIAPROTEINURIA
in diverse glomerulopatiiin diverse glomerulopatiiProteinurii non-nefrotice
Sd. nefritic acut: GN poststreptococica
Proteinurii moderate:
- GN mesangiocapilara
- GN mesangiala
- GSFS primitiva, secundara
- glomeruloscleroza difuza
- GN rapid progresive
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PROTEINURIAPROTEINURIA
in diverse glomerulopatiiin diverse glomerulopatiiProteinuria in GN cu leziuni minimale
Cauza a > 80% din sd. nefrotice ale copilului Nu asociaza:
hematurie
IR hipertensiune arteriala
Prezenta hematuriei, HTA sau IR indica afectare
concomitenta mesangiala sau GSFS
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PROTEINURIAPROTEINURIA
in diverse glomerulopatiiin diverse glomerulopatiiProteinuria in nefropatia IgA
Poate fi prezenta Sd. Nefrotic in < 10% din cazuri
Este neobisnuita prezenta proteinuriei fara hematurie
microscopica
Factor de prognostic negativ
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PROTEINURIAPROTEINURIA
in diverse glomerulopatiiin diverse glomerulopatiiProteinuria in GN membranoasa
Cauza a 30 ± 40% din sd. nefrotice ale adultului Asociaza:
hematurie
IR hipertensiune arteriala
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PROTEINURIAPROTEINURIA
in diverse glomerulopatiiin diverse glomerulopatiiProteinuria in nefropatia diabetica
De la microalbuminurie pana la proteinurie de rang nefrotic Microalbuminuria = prima manifestare a nefropatiei
diabetice
Aparitia microalbuminuriei in DZ tip 1 sau 2 indica
tratament cu blocant al SRAA, independent de valorile TA.
(Ghidul ESH/ESC privind managementul HTA ± 2003)
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Prezentare caz
LM, 22 ani
Motivele prezentarii
±
Edeme ± HTA
Hematurie
Proteinurie
Punctie biopsie renala
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Prezentare caz
PBR ± IF (Anti IgG)
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Prezentare caz
PBR ± IF (Anti C3)
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Prezentare caz
PBR ± MO (HE)
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Prezentare caz
PBR ± MO (HE)
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Prezentare caz
PBR ± MO (HE)
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Prezentare caz
PBR ± MO (HE)
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