Complex sentence: The hospital doesn't perform any major surgeries, but it does have an emergency room, that's not open all the time, which in that case you would have to go to the Cape Breton Regional Hospital, in Sydney.
Split into simpler sentences: The hospital doesn't perform any major surgeries, but it does have an emergency room, that's not open all the time. It has scheduled closers.In that case people you would have to go to the Cape Breton Regional Hospital, in Sydney.