Just restore from backup.
You do have backups... right?
Those hackers are disgusting , but this has little to do with bitcoin as hackers do ask for W/U, Moneygram, greendot prepaid cards (cryptolocker) just the same as bitcoin. I would argue that any currency that does not empower the individual the freedom to spend it for good or bad, responsibly or irresponsibly isn't a currency at all but more akin to a restricted gift certificate or voucher rather than a currency.
This is why we should be cognizant of most criminals preferring the US dollar to other currencies but shouldn't hold contempt for US fiat for this reason alone(There are legitimate reasons to find fault within it) . The US dollar is merely easy to launder, physically forms are anonymous, its ubiquitous , and has high liquidity so is a well suited currency for criminals.
There are two criminals in this story :
1) the extortionists holding the data for ransom
2) The hospital management for not having an appropriate redundancy plan with backups
This goes far beyond any ransom as there are many reasons why one needs proper backups and contingency plans. The fact that the hospital didn't place their printers on a isolated VLAN is a criminal level of irresponsibility and people need to be fired over this. Part of the backup process includes having a restoration strategy and verification process and regularly testing this. If this is not done you shouldn't trust your backup. For this not to be done in a hospital environment where a lack of patient data can jeopardize lives is criminally irresponsible.
This is also a disaster because regulations gave a false sense of security to management. HIPAA guidelines themselves may have given naive management a false sense of security.
prepare yourself 
