It would seem that constant universal aggregation of treatment data, including all diagnoses made (and how they were made) and all treatments used (drugs, amounts, therapies, even diet) would offer continual validation of treatments, highlight developing problems quickly, and help us spot any unnoticed useful treatment vectors.
Immediately privacy leaps to mind as the concern. But couldn't such a system be setup to automatically aggregate this data while maintaining privacy? Or allow waivers?
All I know is that here in America, we're obviously far from such a system. In recent visits, it does seem many large health networks are now moving towards electronic information keeping, but the systems don't sound like they are completely built out, such that practitioners could quickly pull up current statistics or comparisons on any situations/drugs combination options they are looking to use. Indeed the US is mostly considered behind in certain practices. So do such widespread national data systems exist in other parts of the world?