My surgeon says that they are going to be using an endoscope to create the size of my sleeve. Has anyone else had this way of measuring sleeve done?

I'm confused are they using the endoscope to see how big the pouch that they made during a VSG is or are you having an Endoscopic Sleeve Gastroplasty (ESG), where they create the pouch using a suturing machine at the end of the endoscopic camera. The idea being that if they do the surgery from the inside with no external incisions that it is much lower impact.

The surgical group I work with routinely uses a disposable 36fr bougie. However on complicated cases they have been known to use an endoscope instead of a bougie as it provides direct visualization.

Is it common, no. But it's not unheard of.

Of course this is very often on revisions or patients who have had/have a lap band in at the time of their procedure

my surgeon uses a bougie size 40

My surgeon says that instead of a bougie to create the pouch they already have an endoscope in me so they will use the endoscope to measure/create the size of my pouch (pouch will be the size of the endoscope).