What type of sedeation is most commonly used for an endoscopy ? sedeation with or without propofol?

Intravenous sedation: Usually the sedative medications are injected through the intravenous line. Propofol is a very common and safe drug when administered by certified anesthesia provider. Other medications can be used as well.

Either: It really depends on the anesthesiologist. There are a variety of agents that can be used for sedation. Propofol is a very effective agent but does require proper monitoring by a qualified anesthesiologist.