Services at Ealing, CentralMiddlesex, Charing Cross and Hammersmith hospitals are among those that are being affected. Councillor Julian Bell, leader of the council,said:
"We are facing a David versus Goliath struggle to protect our local hospitals but will use every option open to us, including going to court, to fight to keep these vital services for our residents.
More top news
A bungling robber who left his phone at crime scene has been jailed for more than three years.
Four police officers set to face misconduct hearings after a Jury in the Henry Hicks inquest returned a narrative verdict.
A British passport spoof 'have to take safety precautions when leaving house' video has hit 650,000 views on Facebook.