Hello, this is Dr. Linda. I hope I can help with your question today.
I am so sorry that Sonny is undergoing surgery, but you were wise not to wait & prolong things. The surgeon may indeed pass a NG tube to decompress, but this is not always necessary. With dogs, we can exteriorize the stomach quite well & once the stomach is opened, all contents will be evacuated along with the FB.
Sonny will remain on IVF & kept NPO for at least another 12-24 hours post surgery. Hopefully, he will then be offerred a bland, easily digested food & once he has an appetite & no vomiting, he will be released to you.
Dogs do remarkably well with these surgeries, especially if no resections need to be done. I think you will be quite pleased as to how soon he bounces back.
He will probably go home with antibiotics & pain relief for a few days. Once the skin sutures come out in 10-14 days, hopefully Sonny will stay out of trouble.
I hope this makes sense & you find the information helpful. Please let me know if you have any further questions or concerns.
Thank you & all the best that Sonny makes a very quick recovery.