Sister Theresa Stickley awake during her livestreamed heart surgery (St. Paul's Hospital)

Less than an hour after having heart surgery on Monday, Sister Theresa Stickley was alert and in high spirits, and was looking forward to going home the next day.

“I'm feeling pretty good. I had a little pressure in the chest, that's all,” the 83-year-old woman told reporters from her hospital bed, with the lead surgeon by her side.

Sister Theresa's aortic valve replacement operation, which went beautifully, was remarkable in that it was broadcast in real time and observed by hundreds of cardiologists at the 2014 Canadian Cardiovascular Congress in Vancouver.

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