Bobbi Kristina Brown's doctors "don't see any hope for change" and her grandmother, Whitney Houston's mother Cissy Houston, is heading to Atlanta to be with her, as the 21-year-old remains hospitalized at Emory.

[UPDATE: Atlanta cops respond to "fight call" involving Bobby Brown's family]

[PAST COVERAGE: Bobby Brown: "She's good; we're praying."]

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Credit: Jennifer Brett

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Credit: Jennifer Brett

Bobbi Kristina's cousin Jerod Brown urged people to remain hopeful even as he reported a somber update on Instagram:

“Though doctors don’t see any hope for change, though we might want to play detective and find out how she got there, though it looks impossible for her to stand again STILL PRAY FOR BK,” he posted.

Bobbi Kristina's father Bobby Brown, however, gave a thumbs-up sign as he left the hospital on Thursday, Channel 2's Dave Huddleston reported.

In a brief exchange with Access Hollywood earlier in the day, Brown said, "She's good. We're praying."

Bobby Brown, center, at Emory University hospital while his daughter Bobbi Kristina was . AP photo/Ron Harris

Credit: Jennifer Brett

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Credit: Jennifer Brett

Amid reports the family had been preparing for the worst, Bobby Brown issued a statement on Thursday to the contrary: "If we issued a statement every time the media published a false report regarding this matter, that's all we would be doing 24 hours a day. This is false, just as is the vast majority of the other reporting that is currently taking place."

The Houston family's statement has asked for prayers and privacy:

"Bobbi Kristina is fighting for her life and is surrounded by immediate family. As her father already stated, we are asking you to honor our request for privacy during this difficult time. Thank you for your prayers, well wishes, and we greatly appreciate your continued support."