Sexy GEORGE CLOONEY is rushing to girlfriend LISA SNOWDON's aid after emergency surgery was performed to remove her appendix.

The ER hunk is to take a break from filming RAT PACK remake OCEAN'S 11 (2001) to be by gorgeous MTV SELECT presenter Lisa.

A source close to Lisa says, "She's still poorly and it knocked her for six. "George is very concerned and is just trying to be with her. She's really missing him." (AW/WNTSU/PDD)

Source: WENN