US firms O’Melveny & Myers and Dewey Ballantine have scooped plum roles on the $6.4bn (£3.3bn) buy-out of Triad Hospitals as private equity firms continue to target the healthcare sector.

Los Angeles giant O’Melveny represented private equity duo CCMP Capital Advisors and GS Capital Partners, fielding a team out of its New York and Los Angeles offices. The team was headed by New York partner Greg Gilbert, who co-chairs the firm’s transactions department along with corporate partner Harvey Eisenberg.