In the emergency airway, blood, food, vomit and other secretions are always a hazard. Picking up and putting down the suction when badness is welling up from the esophagus can quickly become an exercise in futility. Welcome to the SALAD technique. Suction as much as you can and then just leave it in the esophagus. Wow, what a great idea!
Demonstration of the technique doesn't come until minute 11 in case you just want to see it...https://vimeo.com/123169076