I've been through ECT on two different occasions. Both times helped immensely. The first round was 9 treatments; the second round was 8. With the first round I had some short memory loss surrounding the time of the treatments themselves. Nothing particularly worrisome, just something I became aware of. Once treatments were done, memory came back quickly. The second round I didn't have any memory issues at all. I had no cognitive issues either time.

My husband had ECT: 15 treatments I think. The started bilaterally with him and he had much more memory loss and disorientation. Once treatments were over though, memory recovered and he was fine.

A friend of mine also went through ECT with about the same results as I did.