Veteran broadcaster Paul Holmes remains in a stable condition in Auckland Hospital following successful open-heart surgery.
A team of surgeons worked for four hours on Wednesday to remove a blockage and carry out remedial work on his heart.
Mr Holmes was placed in an induced coma on Friday to quicken recovery.
Auckland Hospital staff member Matt Rogers said in a statement that "There [has been] no change in his condition since Friday.''
The 62-year-old was diagnosed with hypertrophic cardiomyopathy, a usually genetic condition in which the heart muscle thickens and impedes and blocks blood flow. It affects about one in 1000 people.
Before the operation Mr Holmes admitted feeling anxious and "a bit scared'', but he and wife Deborah were buoyed by good wishes from family and supporters.
He said he had been feeling breathless and lacking energy for about a month, which he thought were a result of being rundown after finishing writing a book.
When his condition was confirmed by his Hastings cardiologist Richard Luke, Mr Holmes was rushed to Auckland Hospital by helicopter on May 30.
He has been positive about his long-term prognosis, including a return to work as a Newstalk ZB and TVNZ host and Weekend Herald columnist, saying he had confidence in the surgeons.
During his life Mr Holmes has survived a road accident, a helicopter crash and cancer.
In a statement released on behalf of Mr Holmes and his wife Deborah, Newstalk ZB said he was likely to stay in a coma for the weekend.
"This gives his body a bit more time to heal. His doctors say this can sometimes be expected after such an operation. He remains in a serious but stable condition.''
"The family have been reading Paul the many amazing letters and emails received from the public and want to thank people once again for their support.''
