Former Black Caps all-rounder Chris Cairns is in a "serious but stable condition" after suffering a major medical emergency this week, according to a spokesperson.
Cairns was taken to Sydney's St Vincent's hospital after suffering an aortic dissection during a cardiac incident in Canberra.
Cairns' wife, Melanie, confirmed the news in a statement after reports first surfaced yesterday afternoon.
"Chris suffered a major medical event in Canberra late last week. He initially underwent surgery in Canberra, but the seriousness of his condition is such that he has now been transferred to St Vincent's hospital in Sydney, where he has undergone further cardiovascular surgery," the statement read.
"Chris' family and friends are heartened by the respectful and warm manner in which this terrible news has been reported and received by the public, both in New Zealand and around the world, and thanks everyone for their warm wishes, prayers and kind words."
The former Kiwi cricketer reportedly underwent several operations since he was first admitted to hospital but had not responded as intended.
Cairns is the son of Black Caps legend Lance Cairns. There has been an outpouring of support for the popular figure since news of his health condition broke.
"It's absolutely devastating. It's the worst news you could possibly get," former New Zealand teammate Chris Harris told local media.
The 51-year-old played 62 Test matches, 215 one day internationals and two T20s for New Zealand between 1989 and 2006.