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Forum CopilulMeu • View topic - Vaccin-RH negativ
Page 1 of 1

Vaccin-RH negativ

PostPosted: Sun Mar 05, 2006 12:00 pm
by anais8
Am grupa BIII RH-, sotul RH+. In timpul sarcinii am facut analiza de dozare o singura data in luna a 7-a si anticorpii au iesit absenti. Dr ginecolog mi-a spus dupa nastere ca nu e nevoie sa ma vaccinez, [bebe] avand aceeasi grupa si RH ca mine. Luata de val atunci n-am mai apucat sa intreb de ce si cum si daca la al 2-lea copil mai e nevoie de dozare si daca e posibil sa fie probleme. Poate cineva sa-mi explice? Daca [bebe] are la fel ca mama nu mai e nevoie de vaccin?

PostPosted: Sun Mar 05, 2006 12:42 pm
by ananda
buna anais, sa-ti traiasca daca [bebe] !

daca BB are acelasi Rh ca si tine (adica negativ) nu e nici o problema acum. Numai daca mai ai o sarcina cu fat cu Rh + trebuie sa te vaccinezi (ma rog, nu e chiar un vaccin, dar nu asta conteaza). Vaccinarea e necesara si daca ai un avort (spontan sau provocat), chiar daca nu au aparut anticorpi.

Ideea cu Rh-ul e cam asa:

Rh-ul (sau factorul Rhesus) se gaseste pe globulele rosii din sange (eritrocite). Unele persoane il au (cei Rh +), altele nu (Rh-). Prezenta sau absenta lui e determinata de 2 gene - una dintre gene se mosteneste de la tata si una de la mama.

Nu intru acum in detalii de genetica, ideea e ca daca o persoana Rh- vine in contact cu sange Rh+ (fie in cazul unei transfuzii, fie in cazul sarcinii/nasterii) organismul persoanei Rh- recunoaste sangele respectiv ca fiind "strain" si il trateaza ca atare: secreta anticorpi impotriva lui! Anticorpii respectivi se leaga de eritrocite si le distrug.

Aceasta secretie de anticorpi nu e de obicei foarte mare la primul contact cu sangele strain dar devine importanta si periculoasa daca se produc mai multe contacte. In timpul sarcinii mici cantitati de sange de la BB ajung in sangele mamei si daca BB e Rh+ si mama Rh- apar anticorpii respectivi. La nastere sau avort cantitatea de sange e mult mai mare si deci riscul de aparitie a anticorpilor creste si el.

Cand mama e Rh+ nu e nici un pericol pentru copil, chiar daca el e Rh-, deoarece faptul ca e Rh- inseamna pur si simplu ca nu are factorul Rh pe eritrocite... deci organismul mamei nu va avea ce sa recunoasca drept "strain".

Scuze daca te-am ametit prea tare cu explicatiile, puteam sa ma opresc dupa primul paragraf dar m-am gandit ca mai bine sa-ti dau si cateva amanunte! [:D]

PostPosted: Sun Mar 05, 2006 1:24 pm
by anais8
Multumesc ananda!
Wow, mai ai 3 zile! Nastere usoara si multa sanatate tie si lui
[bebe]