Well it is scary, but rest assured it is not as bad as it sounds. I have/had quite a few health problems when I had my shunt put in, and hearing where they would have to put the shunt scared me more than anything. Thinking about someone putting something in you ventricles in your brain just sounds really risky. I did so much research about the surgery before I got it, and it really just scared me more. The worst part of it is getting used to it being there while it is healing. Just like with any kind of surgery, they area that they are putting the shunt into is going to be sore for a while. The actual shunt itself will be sensitive, but you will get used to it being there you won't even know its there, unless you hit it on something.
After getting it, make sure you know exactly what brand and model you are getting so you can look up what it is sensitive to. I found out the hard way that mine gets reset by any kind of magnetic machines. Some don't react to magnets unless they are in direct contact with them. I worked in a factory setting, and I used demagnification machines, and I would mess up the setting on my shunt a lot. Oh, and MRIs mess my shunt up as well, so always make sure that you let the dr know that is ordering it that you will need to have your shunt adjusted after the test is done. There are some shunts out there that are sensitive to big speakers, like those at concerts, but you have to be right on top of them to have any effect on your shunt.
Other than that, just take a deep breath and try to relax. The surgery isn't as bad as we all build it up to be before we get them. Oh and after you get the shunt, remember that if you have any dental work you will need to take antibiotics before your cleanings or anything, for just in case purposes. Also you will need to let any dr know about the shunt for that purpose, you never know if they will require you to be premedicated with antibiotics before anything. It has always been fun to get X-rays done and I forget to tell them that I have a shunt, because they will see the tube in your abdomen and not know what it is. I always try to tell the techs, because some of them look at the image confused thinking they have messed it up.
Good luck with it all, and it will all work out. Ask tons of questions, and if there is something that doesn't seem right call your dr, nothing is ever ridiculous, it is your body only you know what you are feeling.

Hi,why if i go to the dentist i need to take antibiotics?
Thanks

You're allowed to be scared! But remember you know your body better than anyone. Make sure you ask any questions you have. Tell the doctor anything and everything you think might be relevant. Far better to be safe than sorry. In saying that, it is not an uncommon procedure on the scale of things and you will likely be feeling much better afterwards. I hope you have a smooth recovery!

Taking anitibiotics before dental procedures are common with shunts of many types. It is a precaution to make sure you do not get an infection if you start bleeding while they are cleaning your teeth. Getting an infection with a shunt can be detrimental. The shunt goes to your brain and down through to your abdominal cavity. If you were to get and infection from a dental procedure, it could get to you brain quickly where the shunt is placed. It’s just a precaution but it could be serious if you don’t take it serious.