* MO^.T PHU+O+NG PHA'P MO+'I DDIE^`U TRI. UNG THU+ VU'
*PHA'T MINH MO+'I TRONG VIE^.C KHA'M PHA' UNG THU+
VU'
*PHA'T HIE^.N MO^.T LOA.I VIRUS MO+'I
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MO^.T PHU+O+NG PHA'P MO+'I DDIE^`U TRI. UNG THU+ VU'
Ca'c nha` chuye^n mo^n My~ vu+`a ti`m ra mo^.t phu+o+ng pha'p mo+'i
dde^? ddie^`u tri. be^.nh ung thu+ vu' cu?a phu. nu+~ va` ca'ch
ddie^`u tri. mo+'i na`y co' the^? la`m gia?m ddi bie^.n pha'p pha?i
ca('t bo? ha(?n vu' bi. ung thu+. Ba'c si~ Bernard Fischer thuo^.c
DDa.i Ho.c Allegheny (Pittsburg, Pennsylvania) va` ca'c ddo^`ng nghie^.p
dda~ nghie^n cu+'u ho+n 1.500 phu. nu+~ bi. ung thu+ vu'. Ca'c
chuye^n gia na`y tha^'y khi du`ng pho'ng xa. dde^? chu+~a tri.
tru+o+'c khi mo^? thi` ngu+o+`i ta co' the^? gia?m bo+'t ddu+o+.c nhu
ca^`u pha?i ca('t bo? ha(?n nhu~ hoa cu?a ngu+o+`i be^.nh. Tho^ng
thu+o+`ng phu. nu+~ bi. ung thu+ vu' se~ bi. ca('t bo? vu' co' u a'c
ti'nh, sau ddo' ho. se~ ddu+o+.c ddie^`u tri. ba(`ng phu+o+ng pha'p
ho'a ho.c dde^? dda?m ba?o la` kho^ng co`n te^' ba`o ung thu+ trong
ngu+o+`i nu+~a. Phu+o+ng pha'p chu+~a tri. mo+'i na`y dda~ ddu+o+.c
dda(ng tre^n ta.p san nghie^n cu+'u ve^` ung thu+.
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PHA'T MINH MO+'I TRONG VIE^.C KHA'M PHA' UNG THU+ VU'
Mo^.t phu+o+ng pha'p kha'm pha' ung thu+ vu' du+.a tre^n nhu+~ng ti'n
hie^.u cu?a ddie^.n na(ng sinh ho.c tre^n la`n da vu' ma` theo ddo'
ngu+o+`i ta co' the^? pha^n bie^.t ddu+o+.c hai loa.i u la`nh hay u a'c
ti'ch. Chi? co' u a'c ti'nh mo+'i tha^.t su+. ga^y ra ung thu+.
Phu+o+ng pha'p mo+'i na`y ddu+o+.c pha't minh ta.i Hoa Ky` va` dda~
chu+'ng to? hie^.u lu+.c trong mo^.t so^' be^.nh vie^.n o+? Cha^u A^u.
Tho^ng thu+o+`ng khi mo^.t phu. nu+~ pha't hie^.n mo^.t kho^'i u dda'ng
ngo+` o+? vu' thi` pha?i qua nhu+~ng xe't nghie^.m dde^? xa'c ddi.nh
kho^'i u ddo', nhu+ chu.p quang tuye^'n X hay du`ng phu+o+ng pha'p sinh
thie^'t tu+'c ta'ch la^'y mo^.t mo^ so^'ng cu?a vu' dde^? xe't
nghie^.m. Nhu+ng heo phu+o+ng pha'p mo+'i, ngu+o+`i ta du`ng phu+o+ng
pha'p a'p ca'c ddie^.n cu+.c le^n da vu', ca'c ddie^.n cu+.c na`y se~
ghi la.i nhu+~ng ti'n hie^.u ba'o ddo^.ng ve^` ca'c pha't trie^?n nguy
hie^?m cu?a mo^. Ne^'u kho^'i u kho^ng pha?i la` ung thu+ thi` ngu+o+`i
phu. nu+~ ddo' co' the^? an ta^m va` kho^ng ca^`n pha?i du`ng dde^'n
pha^~u thua^.t hay chu.p quang tuye^'n X nguy ha.i. Nho+` ddo' ho.
ngu+o+`i phu. nu+~ co' the^? kha'm nghie^.m vu' ddu+o+.c thu+o+`ng
xuye^n ho+n.O~ Gio+'i y khoa nha^.n ddi.nh ra(`ng ca^`n pha?i nghie^n
va`i ba na(m nu+~a mo+'i co' the^? hoa`n thie^.n ddu+o+.c phu+o+ng
pha'p na`y.
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PHA'T HIE^.N MO^.T LOA.I VIRUS MO+'I
Mo^.t loa.i vius mo+'i co' ma~ danh la` TTV (Transfusion Transmissible
Virus) vu+`a ddu+o+.c dda(.t du+o+'i su+. gia'm sa't khoa ho.c cu?a
Pha'p. TTV co' kha? na(ng la^y truye^`n qua ddu+o+`ng ma'u va` ga^y
nguy hie^?m tie^`m ta`ng cho su+'c kho?e con ngu+o+`i vi` no' dda(.c
bie^.t tie^'n co^ng va`o gan.O~ Ke^'t ho+.p vo+'i ca'c quan chu+'c y
te^' cu?a nhie^`u nu+o+'c kha'c, Bo^. Y te^' Pha'p ddang nghie^n cu+'u
dde^? xa'c ddi.nh nhu+~ng bie^.n pha'p y ho.c dda(.c bie^.t ca^`n a'p
du.ng. Cho dde^'n nay ngu+o+`i ta chu+a bie^'t lie^.u co' pha?i ca'c
virus TTV la` nguo^`n go^'c ga^y ra nhu+~ng be^.nh ta^.t hay kho^ng.
TTV ddu+o+.c nha^.n da.ng dda^`u tie^n ta.i Nha^.t na(m 1997 o+? mo^.t
be^.nh nha^n ma('c be^.nh vie^m gan sau khi ddu+o+.c truye^`n ma'u. No'
cu~ng ddu+o+.c pha't hie^.n tha^'y o+? 1 tre^n 4 be^.nh nha^n trong
nho'm 72 ngu+o+`i ma('c ca'c be^.nh kha'c nhau ve^` gan, va` 1 tre^n 10
ngu+o+`i su+'c kho?e to^'t. Ca'c nghie^n cu+'u cho tha^'y ra(`ng hie^.n
nay virus TTV chi? co' the^? pha't hie^.n ddu+o+.c ba(`ng nhu+~ng ky~
thua^.t nghie^n cu+'u thu+.c nghie^.m.
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