Lindsey Buckingham, former guitarist and songwriter for Fleetwood Mac, underwent emergency open-heart surgery last week, his wife, Kristen, announced via the musician’s social media on Friday. The note also explains that the surgery resulted in damage to Lindsey’s vocal cords, though the extent of the injury is not yet known.

“Each day he is stronger than the last,” Kristen writes. “While he and his heart are doing well, the surgery resulted in vocal cord damage. While it is is unclear if this damage is permanent, we are hopeful it is not. This past year has been a very stressful and difficult year for our family to say the least. But despite all this, our gratitude for life trumps all obstacles we have faced at this moment. We feel so fortunate he’s alive. As does he. He looks forward to recovery and putting this behind him. Needless to say, all touring and shows currently scheduled have been put on pause for the moment as he gathers the strength to heal completely.”

Read the full note below.

Fleetwood Mac fired Buckingham from the band last spring, replacing him with Neil Finn and Mike Campbell, formerly of Tom Petty and The Heartbreakers. Buckingham has since been touring with a solo band in support of his Solo Anthology retrospective release.