Absolutely no idea about chemo and GBS but I'm sure the oncologist will only recommend what they believe is safe. I'm gathering positive nodes as unusual for chemo with dcis.
My thoughts are the chemo might not be an issue but we are normally given a medication (neulasta) to promote white cell response after round 2 so neutropenia time is shortened. It is that medication they may be cautious with.
http://chemocare.com/chemotherapy/drug-info/Neulasta.aspxLooks like so far no reported issues and its not listed as a caution.
https://www.ehealthme.com/ds/neulasta/guillain-barre-syndrome/They may be cautious with taxane class chemo drugs due to affects on nerves. But please discuss all worries with your oncologist who I'm sure will speak with an appropriate specialist in GBS if there are doubts.
Looking at this link there isn't any current recommendations.
https://www.cancertherapyadvisor.com/hospital-medicine/guillain-barr%C3%A9-syndrome-acute-inflammatory-demyelinating-polyneuropathy/article/600035/I hope all goes smoothly with your treatment. Kath x
