Sydney - Australian Olympic swimming champion Kyle
Chalmers on Tuesday said he had undergone successful surgery to
treat a worsening heart condition.
The Rio 100m freestyle gold medallist announced last month
that he was pulling out of July's world championships in Budapest to get the
"Double thumbs up because this time my heart surgery
was successful! Thank you all for the support," he said on his Instagram
A previous operation had not helped the 18-year-old's supraventricular
tachycardia, which occasionally causes his heart to race.
The condition forced him to miss Australia's national short
course championships late last year, with his doctor and coach deciding he
needed surgery to help prolong his career.
Ahead of the surgery, Chalmers said he had suffered symptoms
during two of his last three major meets and was following doctor's orders to
undergo the procedure.
"The symptoms have reached a point where I must act to
ensure I am in peak physical condition for next year's Commonwealth Games
trials and hopefully the Commonwealth Games," he said, of the event which
will be held in Australia's Gold Coast.