An Oregon doctor charged with manslaughter in the deaths of three patients at an Australian hospital plans to agree to extradition to stand trial.

According to documents filed Wednesday in federal court, Jayant Patel is expected to sign the extradition agreement on Thursday. Patel is also expected to ask for release from jail pending his extradition, a request a judge will likely rule on at a hearing Thursday afternoon.

Patel was sued repeatedly for malpractice in Oregon before his license was suspended and he moved to a remote area of Australia to continue working as a surgeon.

He returned to Oregon amid growing concern over his care for patients at the Bundaberg Base Hospital in the Australian state of Queensland from 2003 to 2005.

Besides manslaughter, the extradition complaint charged Patel with grievous bodily harm, negligence and fraud under Australian law.

The complaint said Patel hid his history of professional misconduct and lied repeatedly on forms required for registration in Australia.

If convicted on all counts, Patel faces up to three life terms in prison plus 100 years.

His attorney, Mark Blackman, was not available for comment late Wednesday, according to his office.

The U.S. Attorney's office in Portland, which is handling the extradition request, had said in a memo filed earlier in the case that Patel "bungled surgeries with tragic results" in Australia, including failure to stop internal bleeding in one patient who later died.

Patel was also accused of removing a healthy gland from one patient and leaving behind a cancerous gland, tearing one patient's esophagus and performing unnecessary surgery on patients in poor health.