When it comes to weight loss surgery, open versus laparoscopic is not a huge difference for most. Obviously, the open procedure would leave a larger scar, but for most of us, even after you've lost weight, your tummy won't exactly be bikini-ready anyway! For recovery, the skin really heals faster than the insides. I had my surgery completely laparoscopically, but I was in the hospital for 4 days because my fever wasn't coming down as quickly as they wanted it to (a bit of a fever immediately following surgery is not abnormal).
I have heard of not having to stay overnight for a laparoscopic VSG, but it's quite rare - you're usually in the hospital for one night, possibly 2 if they are watching something specific (like my fever). With something like a gall bladder removal, it's not usually very complicated, whereas with the removal of the majority of the stomach, they need to make sure there are no leaks along the staple line, no strictures, etc. Plus, if you end up traveling for your surgery, most surgeons want you stay in the area for a week or two afterwards just to be sure you have no complications and are safe to travel home.
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