I am glad it helped put ur mind at ease...just hope it made sense,...lol...
Dear selma Thank u so much for ur reply..I feel mentally free reading it ..
Hi...no...u can not acquire Chiari from all u mentioned in 1...u can trigger Chiari symptoms from all in 1 but the only way u can acquire chiari is from blunt force trauma to the head and neck...such as a fall or MVA, even then if u had Chiari underlying already all that will do is trigger it....
The problem is u r looking at the herniation as Chiari, it is not it is the result of Chiari...which is the malformation of the skull...the area that holds the cerebral tonsils is too small and it forces them out and onto the brain stem and spinal cord....
Ur Dr should be able to tell u if ur Chiari is acquired or congenital, if congenital then yes, u may pass it on to ur children, if acquired, no u can not.
U R NOT responsible if ur child would have chiari, u did not choose to pass it on, it is not from not taking care during pregnancy...and u may have family members that had it, but were never DX'd....so many of us forget that MRI;'s are the only way to know if u or neone in the family has this...well they did not have MRI's when my grandfather was alive....so really how do u know...some can have Chiari and it not be symptomatic....by that I mean they can manage with what they always have and do not know to report it.
Those with low lying tonsils are sometimes told u have Chiari bcuz the tonsils r this long...but it does not obstruct CSF or cause symptoms....there is plenty of room in the skull...so technically this is not Chiari, but if the tonsils restrict flow it can cause Chiari like symptoms and would be treated the same.....
I hope I am making sense and not rambling....