Gi?n N?o Th?t Thai Nhi ?o Bao Nhi?u L? B?t Th??ng

Gi?n n?o th?t thai nhi l? t?nh tr?ng n?o th?t b?n c?a thai r?ng t? 10 mm tr? l?n tr?n si?u ?m. ??y l? m?t d?u hi?u c?n ??nh gi? k?, nh?ng kh?ng ??ng ngh?a thai ch?c ch?n c? b?t th??ng n?ng. ?i?u quan tr?ng l? ?o ??ng, ph?n t?ng m?c ??, t?m b?t th??ng ?i k?m v? theo d?i di?n ti?n.

N?u thai ch? gi?n nh? 10-12 mm, ??n ??c v? ?n ??nh, ti?n l??ng th??ng thu?n l?i h?n. N?u s? ?o t? 13 mm tr? l?n, t?ng d?n ho?c k?m b?t th??ng n?o, tim, th?n, c?t s?ng hay d?u hi?u nhi?m tr?ng, gia ??nh c?n ???c t? v?n y h?c b?o thai chuy?n s?u.

B?i n?y l? trang tr? c?t c?a c?m gi?n n?o th?t. C?c c?u h?i c? th? nh? gi?n n?o th?t nh? c? t? h?t kh?ng, c? c?n MRI hay ch?c ?i kh?ng s? ???c ??t trong m?t quy tr?nh th?ng nh?t ?? tr?nh hi?u r?i r?c.

Gi?n N?o Th?t Thai Nhi L? G?

N?o th?t l? khoang ch?a d?ch n?o t?y trong n?o. ? thai nhi, b?c s? th??ng ch? ? n?o th?t b?n, ??c bi?t l? v?ng atrium. Khi b? r?ng atrium t? 10 mm tr? l?n, thai ???c xem l? c? gi?n n?o th?t.

Gi?n n?o th?t kh?ng ph?i m?t b?nh duy nh?t. N? c? th? l? gi?n nh? ??n ??c, nh?ng c?ng c? th? li?n quan b?t th??ng c?u tr?c n?o, b?t th??ng nhi?m s?c th?, b?nh di truy?n, nhi?m tr?ng b?o thai, xu?t huy?t n?o ho?c r?i lo?n l?u th?ng d?ch n?o t?y.

?o Bao Nhi?u Milim?t L? B?t Th??ng

Ng??ng 10 mm l? m?c quan tr?ng. Theo SMFM, n?n chia gi?n n?o th?t th?nh 10-12 mm, 13-15 mm v? tr?n 15 mm ?? t? v?n v? nguy c? t?ng khi s? ?o l?n h?n.

M?c ??	S? ?o th??ng d?ng	? ngh?a t? v?n
B?nh th??ng	D??i 10 mm	Theo d?i thai k? nh? th??ng l? n?u kh?ng c? d?u hi?u kh?c
Gi?n nh?	10-12 mm	C?n ??nh gi? k?; n?u ??n ??c v? ?n ??nh th??ng thu?n l?i h?n
Gi?n trung b?nh	13-15 mm	Nguy c? b?t th??ng ?i k?m cao h?n, th??ng c?n t? v?n s?u h?n
Gi?n n?ng	Tr?n 15 mm	C?n ??nh gi? nguy?n nh?n, MRI/x?t nghi?m v? k? ho?ch sau sinh

Kh?ng n?n ch? nh?n m?t con s? r?i k?t lu?n. M?t s? ?o 11 mm ??n ??c c? ? ngh?a kh?c v?i 11 mm k?m b?t th??ng th? chai, h? sau ho?c v? n?o.

Quy Tr?nh C?n L?m Khi Ph?t Hi?n Gi?n N?o Th?t

1. X?c nh?n l?i m?t c?t v? c?ch ?o n?o th?t b?n.
2. X?c ??nh gi?n m?t b?n hay hai b?n, nh?, trung b?nh hay n?ng.
3. Si?u ?m h?nh th?i v? si?u ?m th?n kinh thai nhi ?? t?m b?t th??ng ?i k?m.
4. ??nh gi? c? quan ngo?i n?o, nh?t l? tim, th?n, c?t s?ng v? t?ng tr??ng thai.
5. T? v?n x?t nghi?m nhi?m tr?ng, ??c bi?t cytomegalovirus v? toxoplasmosis khi ph? h?p.
6. T? v?n x?t nghi?m ch?n ?o?n di truy?n, th??ng g?m ch?c ?i v? microarray trong b?i c?nh ph? h?p.
7. C?n nh?c MRI thai trong gi?n n?o th?t khi c?n kh?o s?t th?m c?u tr?c n?o.
8. H?n si?u ?m l?i ?? bi?t xu h??ng t?ng, ?n ??nh hay gi?m.

Gi?n N?o Th?t ??n ??c V? Kh?ng ??n ??c Kh?c Nhau Th? N?o

Gi?n n?o th?t ??n ??c ngh?a l? sau kh?o s?t ?? k? ch?a th?y b?t th??ng c?u tr?c kh?c, ch?a c? d?u hi?u nhi?m tr?ng ho?c b?t th??ng di truy?n r?. ??y l? nh?m th??ng c? ti?n l??ng t?t h?n, nh?t l? khi m?c ?? nh?.

Gi?n n?o th?t kh?ng ??n ??c ngh?a l? c? th?m b?t th??ng kh?c. V? d? b?t th??ng th? chai, v? n?o, h? sau, tim thai, th?n, c?t s?ng ho?c d?u hi?u nhi?m tr?ng. Khi ??, t? v?n ph?i chuy?n t? ?gi?n bao nhi?u mm? sang ?nguy?n nh?n n?n l? g??.

C?c b?i chuy?n s?u nh? gi?n n?o th?t ??n ??c ti?n l??ng ra sao v? gi?n n?o th?t ??n ??c v? kh?ng ??n ??c gi?p gia ??nh hi?u r? h?n kh?c bi?t n?y.

Khi N?o Ti?n L??ng Th??ng Thu?n L?i H?n

SMFM cho bi?t sau khi ??nh gi? ??y ??, gi?n n?o th?t nh? ??n ??c 10-12 mm th??ng c? ti?n l??ng thu?n l?i v? kh? n?ng tr? ph?t tri?n b?nh th??ng cao. V?i nh?m 13-15 mm, ti?n l??ng v?n c? th? thu?n l?i nh?ng nguy c? b?t th??ng ph?t tri?n th?n kinh cao h?n.

C?c y?u t? gi?p y?n t?m h?n g?m s? ?o nh?, kh?ng t?ng, kh?ng c? b?t th??ng ?i k?m, x?t nghi?m ph? h?p v? thai ph?t tri?n ?n ??nh. Ng??c l?i, s? ?o t?ng d?n, gi?n n?ng ho?c b?t th??ng ph?i h?p l?m thay ??i h??ng t? v?n.

Gi?n N?o Th?t C? T? H?t Kh?ng

M?t s? tr??ng h?p gi?n n?o th?t nh? c? th? gi?m ho?c tr? v? d??i 10 mm khi theo d?i. Tuy nhi?n, t? h?t kh?ng c? ngh?a l? b? qua ??nh gi? nguy?n nh?n. Gia ??nh n?n ??c b?i ri?ng v? gi?n n?o th?t nh? ? thai nhi c? t? h?t kh?ng n?u c?u h?i ch?nh l? kh? n?ng h?i ph?c.

Khi N?o C?n MRI Thai Ho?c Ch?c ?i

MRI thai ???c c?n nh?c khi c?n t?m b?t th??ng n?o kh? th?y tr?n si?u ?m, nh?t l? trong gi?n nh? ho?c trung b?nh. MRI h?u ?ch nh?t khi c? m?y ph? h?p v? b?c s? ??c phim c? kinh nghi?m v? thai nhi.

Ch?c ?i kh?ng ph?i v? gi?n n?o th?t ch?c ch?n l? b?nh di truy?n. M?c ti?u l? t?m b?t th??ng nhi?m s?c th? ho?c vi m?t ?o?n/vi l?p ?o?n khi k?t qu? n?y c? th? thay ??i t? v?n. B?i ch?c ?i khi gi?n n?o th?t gi?i th?ch r? h?n ch? ??nh v? gi?i h?n.

C?ch Theo D?i Sau Khi C? K?t Qu?

T?nh hu?ng	Vi?c c?n ?u ti?n	M?c ti?u
10-12 mm, ??n ??c	Si?u ?m l?i v? ho?n t?t ??nh gi? c? b?n	X?c nh?n ?n ??nh ho?c gi?m
13-15 mm	Si?u ?m th?n kinh, t? v?n x?t nghi?m, c?n nh?c MRI	T?m b?t th??ng ?i k?m v? nguy?n nh?n
Tr?n 15 mm	T? v?n chuy?n s?u tr??c sinh v? chu?n b? sau sinh	L?p k? ho?ch theo d?i th?n kinh tr?
T?ng qua nhi?u l?n ?o	??nh gi? l?i to?n b? h? s?	Ph?n bi?t ti?n tri?n th?t v?i sai s? ?o
K?m b?t th??ng kh?c	T? v?n ?a chuy?n khoa khi c?n	??nh gi? ti?n l??ng theo nguy?n nh?n n?n

C?u H?i Th??ng G?p

Gi?n n?o th?t thai nhi l? g??

?? l? t?nh tr?ng n?o th?t b?n c?a thai nhi r?ng t? 10 mm tr? l?n tr?n si?u ?m. ??y l? m?t d?u hi?u h?nh ?nh, kh?ng ph?i m?t ch?n ?o?n nguy?n nh?n duy nh?t.

Gi?n n?o th?t thai nhi ?o bao nhi?u l? b?t th??ng?

Ng??ng th??ng d?ng l? t? 10 mm tr? l?n. SMFM ph?n nh?m nh? 10-12 mm, trung b?nh 13-15 mm v? n?ng tr?n 15 mm.

Gi?n n?o th?t thai nhi c? nguy hi?m kh?ng?

Nguy c? t?y m?c ??, di?n ti?n v? b?t th??ng ?i k?m. Gi?n nh? ??n ??c sau ??nh gi? ??y ?? th??ng c? ti?n l??ng thu?n l?i h?n, c?n gi?n n?ng, t?ng d?n ho?c kh?ng ??n ??c c?n t? v?n chuy?n s?u.

C? c?n ch?c ?i khi thai gi?n n?o th?t kh?ng?

SMFM khuy?n ngh? n?n ?? ngh? x?t nghi?m ch?n ?o?n v?i microarray khi ph?t hi?n gi?n n?o th?t. Quy?t ??nh th?c hi?n c?n ???c t? v?n theo tu?i thai, m?c ?? gi?n v? h? s? gia ??nh.

MRI thai c? thay th? si?u ?m kh?ng?

Kh?ng. MRI l? x?t nghi?m b? sung trong m?t s? tr??ng h?p ?? t?m b?t th??ng n?o kh? th?y tr?n si?u ?m. Si?u ?m v?n l? c?ng c? ch?nh ?? ?o, kh?o s?t thai v? theo d?i di?n ti?n.

T?i Li?u Tham Kh?o

1. Society for Maternal-Fetal Medicine. Consult Series #45: Mild fetal ventriculomegaly: diagnosis, evaluation, and management. American Journal of Obstetrics and Gynecology, 2018. PMID: 29705191.
2. Malinger G, Paladini D, Krajden Haratz K, et al. ISUOG Practice Guidelines: sonographic examination of the fetal central nervous system. Part 1. Ultrasound in Obstetrics & Gynecology, 2020.
3. Melchiorre K, Bhide A, Gika AD, Pilu G, Papageorghiou AT. Counseling in isolated mild fetal ventriculomegaly. Ultrasound in Obstetrics & Gynecology, 2009/2014 indexed data.
4. Gaglioti P, Danelon D, Bontempo S, et al. In utero progression of mild fetal ventriculomegaly. Ultrasound in Obstetrics & Gynecology, 2006.
5. Society for Maternal-Fetal Medicine recommendations on diagnostic testing, CMV/toxoplasmosis testing, MRI consideration and follow-up ultrasound when ventriculomegaly is detected.

K?t Lu?n

Gi?n n?o th?t thai nhi c?n ???c hi?u nh? m?t d?u hi?u si?u ?m quan tr?ng. S? ?o t? 10 mm tr? l?n c?n ??nh gi? ??ng m?t c?t, ph?n t?ng m?c ?? v? t?m b?t th??ng ?i k?m.

N?u gi?n nh?, ??n ??c v? ?n ??nh, ti?n l??ng th??ng thu?n l?i h?n. N?u gi?n t?ng d?n, t? 13 mm tr? l?n ho?c kh?ng ??n ??c, gia ??nh n?n ???c t? v?n y h?c b?o thai chuy?n s?u ?? quy?t ??nh x?t nghi?m, MRI v? k? ho?ch theo d?i sau sinh.

Vi?c khu tr? c?m n?i dung gi?p gia ??nh ?i t? trang tr? c?t n?y sang ??ng b?i chuy?n s?u, thay v? ??c nhi?u trang tr?ng ? v? lo l?ng h?n. Khi c?u h?i ch?nh l? kh? n?ng gi?m ho?c t? h?t, b?i gi?n n?o th?t nh? c? t? h?t kh?ng l? trang ph? h?p nh?t.

{ “@context”: “https://schema.org”, “@graph”: [ { “@type”: “MedicalWebPage”, “@id”: “https://drtuyhocbaothai.com/gian-nao-that-thai-nhi/#webpage”, “url”: “https://drtuyhocbaothai.com/gian-nao-that-thai-nhi/”, “name”: “Gi?n N?o Th?t Thai Nhi ?o Bao Nhi?u L? B?t Th??ng”, “description”: “Gi?n n?o th?t thai nhi l? khi n?o th?t b?n r?ng t? 10 mm tr? l?n. B?i vi?t gi?i th?ch m?c ?? nh?, trung b?nh, n?ng v? c?c b??c c?n l?m.”, “inLanguage”: “vi-VN”, “dateModified”: “2026-07-14”, “medicalAudience”: { “@type”: “MedicalAudience”, “audienceType”: “Patient” }, “about”: { “@type”: “MedicalCondition”, “name”: “Fetal ventriculomegaly” }, “reviewedBy”: { “@type”: “Person”, “name”: “ThS.BS Nguy?n Ng?c T?” }, “publisher”: { “@type”: “Organization”, “name”: “Dr T? Y H?c B?o Thai”, “url”: “https://drtuyhocbaothai.com/” } }, { “@type”: “FAQPage”, “@id”: “https://drtuyhocbaothai.com/gian-nao-that-thai-nhi/#faq”, “mainEntity”: [ { “@type”: “Question”, “name”: “Gi?n n?o th?t thai nhi l? g??”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “?? l? t?nh tr?ng n?o th?t b?n c?a thai nhi r?ng t? 10 mm tr? l?n tr?n si?u ?m. ??y l? m?t d?u hi?u h?nh ?nh, kh?ng ph?i m?t ch?n ?o?n nguy?n nh?n duy nh?t.” } }, { “@type”: “Question”, “name”: “Gi?n n?o th?t thai nhi ?o bao nhi?u l? b?t th??ng?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Ng??ng th??ng d?ng l? t? 10 mm tr? l?n. SMFM ph?n nh?m nh? 10-12 mm, trung b?nh 13-15 mm v? n?ng tr?n 15 mm.” } }, { “@type”: “Question”, “name”: “Gi?n n?o th?t thai nhi c? nguy hi?m kh?ng?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Nguy c? t?y m?c ??, di?n ti?n v? b?t th??ng ?i k?m. Gi?n nh? ??n ??c sau ??nh gi? ??y ?? th??ng c? ti?n l??ng thu?n l?i h?n, c?n gi?n n?ng, t?ng d?n ho?c kh?ng ??n ??c c?n t? v?n chuy?n s?u.” } }, { “@type”: “Question”, “name”: “C? c?n ch?c ?i khi thai gi?n n?o th?t kh?ng?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “SMFM khuy?n ngh? n?n ?? ngh? x?t nghi?m ch?n ?o?n v?i microarray khi ph?t hi?n gi?n n?o th?t. Quy?t ??nh th?c hi?n c?n ???c t? v?n theo tu?i thai, m?c ?? gi?n v? h? s? gia ??nh.” } }, { “@type”: “Question”, “name”: “MRI thai c? thay th? si?u ?m kh?ng?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Kh?ng. MRI l? x?t nghi?m b? sung trong m?t s? tr??ng h?p ?? t?m b?t th??ng n?o kh? th?y tr?n si?u ?m. Si?u ?m v?n l? c?ng c? ch?nh ?? ?o, kh?o s?t thai v? theo d?i di?n ti?n.” } } ] } ] }