Published Wednesday, 25 September 2013
The 73-year-old star, who played Vera Duckworth on the soap, had the surgery at the Wythenshawe Hospital in Manchester.
The procedure comes after Dawn suffered a heart attack in May.
A source close to the actress tells The Sun: "Liz has had the operation and is doing well."
Dawn, who also has lung disease emphysema, retired in 2008 due to health problems and her Coronation Street character was killed off by heart failure.