Grammy-winning singer Toni Braxton is in "good condition" after being admitted to a Las Vegas hospital for chest pains Monday night, says a spokeswoman for a hotel-casino where the singer has been performing.
The singer, 40, is expected to be released from the St. Rose Dominican Hospital on Tuesday afternoon, according to the Flamingo Hotel-Casino rep. She has been headlining her live show "Toni Braxton: Revealed" five days a week at the Flamingo since 2006.
The singer has spoken in public about her heart condition, pericarditis, an inflammation of the sac surrounding the heart.
"I found out about five or four years ago" the artist told PEOPLE in February
. "I've also been diagnosed with hypertension."
This year, Braxton became a spokesperson for the American Heart Association.
She was not scheduled to perform Sunday or Monday night. Tuesday's show has been canceled to give the singer time to recover.
"We wish Toni a quick recovery and would like her to take the time she needs to regain optimal health," said president of Flamingo Las Vegas, Don Marrandino. "We are looking forward to her return at the end of the week."
Calls to Braxton's publicist have not been returned.