Normally, those would be really bad sats. But for a child with TOF, 81-82% isn't that bad, actually. Before Jacob was repaired, anything over 78% or so was considered OK. She may just be getting bigger and needing a "normal" heart. That said, you need to look at other symptoms. Is she retracting (working to breath), coughing more, had a change in sputum color, or needing suctioning more? Those are things that you need to look at rather than sats for clues to cold/flu. Also, watch her temp closely.
Good luck with the surgery - I'll be thinking about you and your family and keeping you in my prayers.
Miracles Do Happen!!!
Jacob's mom, 3 yr old with DiGeorge/VeloCardioFacial Synd., TOF with APV, trached 9-11-01, G-button, LTV 950 for 2 1/2 years. Decannulated April 12, 2004!!!