Left Carotid Artery 85% Blockage

Yes, although it somewhat depends on where the enlargement is. Even so, the bypass or 'scrape' happens regardless of what is around the vessel, including enlarged vessels. Often the enlargement is more internal than external, meaning the walls of the vessel enlarge, but inward, cutting available volume. This thickening of the wall and reduced volume is what we want to avoid, but you have some of that. You don't say what descriptor was used, or fed back to you, about the extent of enlargement.
This surgery is routine, if tricky for every case, and you'll have an experienced and skilled surgeon working on your heart, a specialist in vascular surgery.

Hello, thank you for your input. I don’t know what a descriptor is. I just know what I was told. An enlarged heart with mild mitral valve prolapse. Nothing was ever done. Also told I was in Heart Failure at that time . EF 35% .
5/4-5/14 found out no HF! EF was 60%. That is when I switched to new Cardio Dr. Also discovered 8 weeks prior left Carotid Artery was 50% blocked now 75%. Also all my other health ailments, I had a Bone Marrow Transplant, hence the Total Body Radiation. Surgery, no Stent, no TCAR. The original way. Cut the neck and clean out the Artery and Pray to God a piece doesn’t slip away to my brain during the process. 🙏🏻🙏🏻🙏🏻

Sorry, by descriptor I mean a standard adjective used in the industry to situate the defect in relation to other levels or stages of that defect. For example, the enlargement can be described (with descriptors...) as 'mild,' or 'moderate', or 'severe,' or just a volumetric descriptor such as '5 cc', or 7 cc'. No big deal, just looking for a word that might have you in mild, moderate, or severe categories.
I think you have done the right thing to get a second look at you. The wide variance suggests something is not right.

I can’t thank you enough. I am going today at 2:00pm est for that echocardiogram of my heart . I will ask some questions. I don’t believe the the person performing the test will give me the answers but I do believe I will see them on my Portal my this evening. I will keep you updated. Again, given my medical history, I just don’t have a good feeling. Back in my 14 day stay this past May in Hospital. One of the floor Doctors made a comment to me. She said, ‘You know Kathy, you are not just any Patient. You are a very Special Patient). I thanked her. Since 1981, over all the many, many health obstacles I have come up against, not one of my Doctors ever mentioned anything like that. I am not a patient coming in, with let’s say Thyroid Nodules. Yes I have 6. 3 solid and 3 cystic. From the Treatments in 1981 along with other things. Lung, neuropathy etc. Sloan Kettering won’t even Scan my Thyroid. They only monitor the growth of the Nodules! Mind you 3 are Solid. Sorry, spilling again. 🙏🏻🙏🏻🙏🏻