Story time. Here's why I have a low threshold for intubating in the UGIB scopes. I was board runner for the day as a CA3 (part of our "periop management" rotation, that's a rant for another time). Got a call from a new attending, she was a couple years ahead of me in training. She had done pain fellowship then stayed and was working in endoscopy. She asked me to help start her case, 60 y/0 M with widely metastatic pancreatic cancer, INR around 2, being transfused for suspected UGIB. Wealthy hospital donor family was totally unwilling to accept the reality of the situation, they were pushing everyone to "do everything" so GI agreed to scope him and see if they could find and treat a source. We could have refused to do it, but it was Friday afternoon and our sense was that it would be better to do it now rather than be called in do deal with an even worse situation over the weekend. In the moment it seemed that the case was going to go one way or another, so it was a question of when and how so we opted to go for it now, under general anesthesia. We had started some nasty cases as residents and this was clearly going to be another. NG tube had come out while he was vomiting earlier in the day.
Despite keeping the head elevated, pressure on the neck (what is cricoid pressure? Who is John Galt?) he had high volume hematemesis on induction. When I DL'ed, all I could see was a fluid level. After a few very long seconds of suctioning, the vocal cords emerged from the middle of a murky, dark lake. After connecting to the circuit, my attending tried to hand ventilate and there was no end tidal CO2 and she was unable to move any air. It was exactly what you would expect if you were in the esophagus, but my view had been easy so I inserted the soft suction into the ETT and suctioned. And suctioned. And suctioned. This time, after reconnecting we were able to ventilate.
He survived the procedure, which as a result of his aspiration included a formal bronchoscopy by a pulm intensivist to really clean and wash out the airways. He returned to the ICU intubated. I checked on him and he made it through the weekend, but I doubt that he lived for long. In hindsight, we could have approached the case differently. I am grateful that we were prepared for disaster since that is exactly what happened. However; I suspect the outcome would have been similar no matter what our plan was. Prior to that, I had done quite a few EGD's and rarely intubated for them, most of them were very low risk compared to this patient. As others above have stated, you can get away with doing a lot of these cases, but one unexpected aspiration could be a disaster. I have some partners who routinely intubate for any EGD. That is a bit extreme for me, but I take the risk of aspiration very seriously.