Other stars sending their best wishes via Absolute Radio included Lorraine Kelly, Phillip Schofield, Sally Lindsay and Sherrie Hewson of Loose Women, Kerry Katona and Keith Lemon.
"Massive congratulations and wishing you a very speedy recovery," said Dec.
Ant added: "I hope to see you back very soon on Britain's Got Talent where you belong."
> Amanda Holden's husband Chris Hughes thanks medical staff
> National Television Awards winners list - In Full
Watch Michael McIntyre and David Walliams give their regards to Amanda Holden below:
Move through our gallery of winners from last night's National Television Awards below: