conditionals

Is there any chance for the sentence below to be grammatical?
ex. She would die unless the doctor saved her.

I would imagine that this sentence could describe the real situation of the past event.
That is, unlike unreal-conditionals, "She was expected to die except if the doctor saved her." Is it right?
And the proposition of the unless-clause was unknown to us whether it was fulfilled or not. Am I right on my thinking?

It works (in the right context), and we don't know without more information whether she lived or died.

Thank you for the answer.
Then what is the more appropriate to think - the sentence in question is a hypothetical unreal conditional sentence or a real conditional sentence?

One cannot be sure without context.

To tell the truth, I just saw this example in isolation somewhere else.
So I basically don't know what context is to be used.
The context I contrive to make as best as I can is just as follows;
The sentence in question is the bacakshifted version of 'She will die unless the doctor saves her'.
But I know that this cannot be any satisfactory at all. Would you please suggest some proper and clever context?

johm7712 said:

To tell the truth, I just saw this example in isolation somewhere else.
So I basically don't know what context is to be used.
The context I contrive to make as best as I can is just as follows;
The sentence in question is the bacakshifted version of 'She will die unless the doctor saves her'.
But I know that this cannot be any satisfactory at all. Would you please suggest some proper and clever context?

Click to expand...

I find it extremely unlikely that you simply saw that sentence, all alone, for no good reason, in isolation. If you can't remember the context, then just say so.

What good for me to hide the truth? Literally speaking, I found that sentence in isolation like an island in the ocean.
I will also be embarrassed if I see a sentence alone floating without any context. But I cannot help what the given fact is.
I would like to assure you that there was really no context at all when I happened to find this sentence.

johm7712 said:

What good for me to hide the truth? Literally speaking, I found that sentence in isolation like an island in the ocean.
I will also be embarrassed if I see a sentence alone floating without any context. But I cannot help what the given fact is.
I would like to assure you that there was really no context at all when I happened to find this sentence.

Click to expand...

One way I think this would work is "She knew she would die if the doctor didn't save her."

And in indirect speech:
They told us she would die if the doctor didn't manage to save her.