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Prominent left brain ventricle - Online Doctor Chats

Date : 13-Jan-2012
User rating for this question
Excellent Posted in: Brain and Spine
Answered by

General & Family Physician
Practicing since : 2009
Answered : 537 Questions
User :   Dear Doctor,
I'm pregnant in 28 gwk. I had Ultra Sound (US) scan and they report the my baby have Left Ventricle Brain Prominent = 0.76 cm and his head circumference = 25.7 cm.

I'm worry if my baby will has any problem (e.g. Hydrocephelus).

What's your opinion?

Doctor :   Hi
User :   hi
Doctor :  
what did your gynecologist say about this?
User :   recommended follow-up by scan
Doctor :   yes that is the right way to do
Doctor :  
did you have any urinary tract infection?
User :   never
User :   but I want to know if the baby is OK or NOT
Doctor :  
than why are you worried about the hydrocephalus
Doctor :  
yes baby is ok
Doctor :  
it is the growing brain
User :   but they told me if the Ventricale may be become wider
User :   What is the normal range of Brain Ventricle size in this age?
Doctor :  
it is a growing brain
Doctor :  
28th week is the important week were there is rapid growth of brain and other organs
User :   if it's normal why they told me may be became wider and the baby may have a problem?
Doctor :  
which ventricle it is is it the third ventricle you are talking about?
User :   Is it up-normal size to be 0.76 at 28 gwk?
User :   Left Ventricle Brain only they report
Doctor :  
the average width of the ventricle from 12 to 28 week is !mm
User :   do you mean 1 mm?
Doctor :  
after 28th week it starts enlarging and reaches up to 1.9 mm
Doctor :  
User :   but the size is 0.76 cm
User :   Is it normal when only one ventricle brain became wider and the other nil?
Doctor :   since it is growing brain this type of permutations and combination do occur
Doctor :   where one part of the brain grows more thatn the other
Doctor :  
by 32 to 36 weeks most of the time the growth equalizes
User :   Why this issue does not happened to my previous 2 sons? (ages now 4 & 3 years)
Doctor :  
this is developmental
Doctor :   and no specific cause can be pointed out
User :   What about the size? it is 0.76 CM (7.6 mm)
User :   please confirm
Doctor :   is it the third ventricle?
Doctor :  
secondly the average head circumference at the 28th week is 27.1 cms
User :   in the report only (Left Ventricle)
User :   Is there any differences between 3rd ventricle and others?
User :   I will ask them which one. So, what is the problem in the 3rd one?
Doctor :  
there are 3 ventricles in the brain
Doctor :  
right lateral, left lateral and third ventricle
User :   I think it is the Left lateral
User :   Dr, you told me that the average width of the ventricle from 12 to 28 week is 1 mm
User :   and after 28th week it starts enlarging and reaches up to 1.9 mm
Doctor :   relax
Doctor :  
the left lateral ventricle at the 28th week will be usually in the rqange of 6 to 8 mm
Doctor :  
it is at the upper limit
Doctor :  
thats all
Doctor :  
and the head circumference will be around 27 cms
Doctor :  
and in your baby it is around 25 cms
Doctor :  
it is also ok
Doctor :  
that 1mm is the third ventricle
Doctor :   and does your scanning report do say anything about the third ventricle width?
User :   no
Doctor :  
Doctor :  
0.76 cms
Doctor :  
is 7.6 mm
Doctor :  
to say it is at the upper limit
Doctor :  
so serial ultrasound will be done to monitor the growth of the brain
Doctor :   this is usual practice
Doctor :   what needs to be checked is whether the ventricle is growing rapidly or not
Doctor :  
usually the ventricle limits the growth by 32 to 36 weeks
Doctor :   did you follow
User :   yes dr
User :   What will happen if Left Ven become more on 30 weeks?
Doctor :   the increase in the size if it is beyond the range than further tests are required to know whether there is any compression on the brain matter
Doctor :   if not there than again it will be observed with ultasound scans
User :   but they gave me scan appointment after 3 weeks?
User :   What is the max time (weeks) should to the next scan?
Doctor :   yes that is right time
Doctor :  
you know almost 50 % of fetuses at the age of 13 to 26 weeks will have enlarged ventricles
Doctor :  
and gradually they come back to normalcy by the age of 33 to 38 weeks
User :   but my Dr said that either it will be remain like this size or become wider. What do you think?
Doctor :  
ventricles gradually become smaller with gestational age.
Doctor :   in comparision with the brain size
Doctor :  
is there any mention of the ventricle to brain ratio in the report?
User :   no
Doctor :  
Doctor :   with the present ultrasound scan values of brain what i conclude is, the lateral ventricle size is on the upper limit for the the gestational age
Doctor :  
and it is a frequent finding
Doctor :   and usually it is called normal fetal hydrocephalus
Doctor :   the management in this is serial ultrasound monitoring of the ventricle size and brain growth
User :   We decided tomorrow we are going to make a second scan in another hospital. So What is the range of normal Ratio for each Ven?
Doctor :  
it is again dependent on at what level it is taken
Doctor :   there are multiple levels at which the width of the lateral ventricle is taken
Doctor :  
Doctor :   which one does the second sonologist prefer is his choice and depends on the accessibility to scan.
User :   Conclusion: No neurological problem will happen to baby with this results. right?
Doctor :   the possibility of neurological problem is there if the abnormality does not get corrected by the time of delivery
Doctor :  
so only all this exercise of monitoring the brain growth with the scan
Doctor :   your baby is in the risk group not in diseased group
Doctor :  
not to worry much ok
User :   What is the causes to this problem?
Doctor :   it is developmental
Doctor :   no specific cause is known
User :   They told me after delivery they will do MRI scan and may be i will deliver by c-section. ok?
Doctor :   is there anything else i can help you with?
Doctor :  
please fill the feed back form
Doctor :   thanks for consulting health care magic
Doctor :   please do log in if you have any medical queries

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