Green Party co-leader Rod Donald's sudden death was caused by a viral infection of his heart, a pathologist's report has revealed.
Mr Donald's partner, Nicola Shirlaw, released the finding by Christchurch pathologist Martin Sage today.
It was at first thought Mr Donald died of a heart attack, but this was ruled out earlier this week following an autopsy.
"He said in his opinion the cause of death was viral myocarditis," Ms Shirlaw said in a statement.
"Viral myocarditis is an uncommon but well-recognised cause of sudden death. This condition is not immediately identifiable at autopsy as microscopic examination is required."
The condition can be caused by a number of common viruses and leads to inflammation of the muscles in the wall of the heart. It can cause heart failure but patients may think they simply have flu.
Ms Shirlaw said Mr Donald had no pre-existing conditions or other heart or coronary artery disease.
She said: "Rod's sudden death has been a huge shock to everyone. There is usually no forewarning to this type of death and it is apparent it could not have been anticipated."
Mr Donald's funeral was held in Christchurch yesterday.
Nandor Tanczos confirmed today he would be taking Mr Donald's place in Parliament. Mr Tanczos was the next candidate on the Green Party list for the September 17 election.
- NZPA, HERALD STAFF
Cause of Donald's death revealed
AdvertisementAdvertise with NZME.