Ly giai nguyen nhan tre tu vong sau khi tiem vac xin

Thứ sáu, 23 Tháng mười một 2012, 08:50 GMT+7


Theo GS-TS Nguyen Thu Van, sau tiem, tre co the tu vong vi vac xin lam boc lo nhung benh be da mac.
>> 83 tre phan ung sau tiem vac xin 5 trong 1

>> Noi lo lang sau tiem vac xin, tre nho tu vong

Gan day, thong tin cac truong hop sau khi tiem xong vac xin tong hop 5 trong 1, vai chau da tu vong khien nhieu bo me lo lang. Tai tinh Thanh Hoa, 9 thang dau nam co toi 83 tre phan ung voi vac xin nay. Trong thang 11 cung co mot tre 2 thang tuoi tu vong sau tiem vac xin.
Trao doi voi phong vien, GS-TS Nguyen Thu Van – Giam doc Congty vac xin va sinh pham so 1 cho biet: Vac xin co ban la an toan.

Tuy nhien, trong qua trinh tiem moi co the phan ung voi vac xin khac nhau nen co tre sau tiem bi sot nhe, sot cao, co tre bi soc phan ve.

Hien tuong nay xay ra do khang nguyen trong vac xin khi vao co the gay phan ung. Neu co the phan ung manh de bao ve thi se gay sot cao. Tham chi co the bi soc.

Tuy nhien, du co soc voi loai vac xin do thi cac bac si, y ta tai cho tiem se biet cach giai quyet. Ho se tiem cho tre thuoc chong phan ve. Day la ly do tai sao sau khi tiem, cac bac phu huynh nen de tre nan lai them 30 phut de phong truong hop bi soc.

Nhung thuc te nhieu ba me sau khi tiem vi sot ruot nen dua con ve ngay, va sau do, tre bi soc phan ve da khong co thuoc tiem kip thoi. Vi vay, co nhung ket qua khong mong muon.

Ly giai nguyen nhan tre tu vong sau khi tiem vac xin 1
Tiem phong la can thiet, neu tre bi soc, cac bac si da co thuoc tiem chong soc.

Thuc te, co truong hop cung mot lo thuoc, tham chi cung tiem 1 lo thuoc nhung co tre tu vong, co tre binh thuong. GS Van giai thich, do la do co dia moi tre khac nhau, co phan ung voi vac xin khac nhau.

Co nhung tre co co dia qua nhay cam, hoac ban than khi tiem da bi nhiem trung ma cha me khong biet. Khi do, co the dang met moi, lai phai tiem them khang nguyen khac. Nhu vay, co the da om lai chong choi voi khang nguyen tu vac xin nen co truong hop tu vong.

Khi duoc hoi, co nhung tre nhu chau Ph. o Da Lat, khong bi soc ngay voi vac xin ma den toi moi tim tai, nhip tam dap nhanh va tu vong. GS Thu Van khang dinh khong phai do soc do vac xin ma co the vac xin duoc tiem vao co the lam bo lo benh von co cua tre.

Thong thuong, tre bi sot khien nhip tim dap nhanh, khi do, neu tre tiem tang benh tim bam sinh se de bi tu vong sau tiem.

Khi phong vien thac mac, lieu tiem vac xin 5 trong 1 tre de bi sot, bi anh huong hon so voi viec tiem tung loai vac xin hay khong, GS – TS Thu Van khang dinh: Vac xin 5 trong 1 Hip phong 5 loai benh: bach hau, ho ga, uon van, viem gan B va viem phoi/viem mang nao mu do Hib) da duoc dua vao chuong trinh tiem chung mo rong mien phi cho tre duoi 1 tuoi tu nam 2010.

Day la loai vac xin da duoc hang chuc nuoc tren the gioi su dung, khong co phan ung nang, neu co thuong la cac phan ung nhe, tai cho nhu sung, nong, dau cho tiem, sot tren 38 do va cac trieu chung se bien mat sau 1-2 ngay.

Cac ba me nen hieu day la mot tien bo khoa hoc trong tiem chung, chi can 1 mui da phong duoc 5 benh. Dung hieu don gian de phong duoc 5 benh tren, vac xin Hip duoc pha tron don thuan ma cac khang nguyen duoc nghien cuu de tao thanh phan tu dong nhat.

Ly giai tai sao mui Hip thuong gay sot, GS Van cho biet: Ban than vac xin tiem phong benh ho ga van thuong gay sot. Vi vay, khi ket hop cac khang nguyen nay trong 1 mui tiem co phong benh ho ga thi cac chau bi sot.Co the phan ung bang cach sot moi tot.

Ve nguyen nhan tu vong cua tre sau tiem phong vac xin, mot chuyen gia hang dau cua Vien Ve sinh dich te Trung uong cho rang tre tu vong sau tiem vac xin, nhieu kha nang do co dia chau khong thich ung voi vac xin.

Tien si Nguyen Tran Hien, Vien truong Vien Ve sinh dich te Trung uong, cho biet, phan lon cac truong hop khong ro nguyen nhan la do khong duoc mo tu thi nen thieu thong tin de ket luan, khong tim duoc bang chung la tre chet do yeu to gi.

Ong Hien cho rang, trong so tre chet sau tiem phong, nhieu truong hop do loi o phu huynh nhu khong theo doi suc khoe con, bo con bi lanh…

Nam 2007, Viet Nam ghi nhan 29 truong hop phan ung nang va tu vong sau khi su dung vac xin, trong do 15 ca duoc khang dinh la trung hop ngau nhien (do benh khac, khong he lien quan den tiem chung).

Trong so con lai, 10 ca thuoc dien khong ro nguyen nhan, 1 soc phan ve do co dia, chi co 3 ca do loi o dich vu tiem chung.

Trong cuoc hop cong bo nguyen nhan cac ca tai bien sau tiem chung, ong Nguyen Tran Hien giai thich, tre chet sau tiem chung ngoai nhung ly do khong phai do vac xin con do phan ung qua man xay ra cham sau tiem, nhieu kha nang do co dia.

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