A Christian woman with a tubal pregnancy can decide whether to accept this operation. Normally she undoubtedly would be willing to face any risks of pregnancy so that her child could live. But with a tubal pregnancy she faces a grave risk while there is no possibility that the embryo can continue to live and a child be born.
I'm sorry but even this would have to be a no-brainer. Yet I wonder how many women, from years of WTS conditioning, had to ask their elders for the ok for this operation? I suppose that even if they asked their own husbands, it's what the elders decides is what counts. After all, the elders are just a few steps down the command chain from Jehovah!