Health region president and CEO Dan Florizone said he made the original decision to ease the need for hospital beds and lower wait times in light of the hospital's new 14-day challenge to improve health care.
But now Florizone says he regrets the decision and all surgeries will resume on Monday.
Florizone says the health region has a history of using surgical areas and recovery rooms to deal with capacity issues but that it is "totally unacceptable" because it does not solve the long-term issues.
He said the region has worked hard to reduce surgical wait times and they do not want to see those improvements lost because they used the beds for other patients.
Florizone said families were given little notice of the cancellations but were notified individually.
"We owe an apology to families and the patients," Florizone said. "I regret the decision. I took the decision to be able to create some immediate capacity but that's exactly the problem here."