Addressing your questions regarding what are the risks of local anesthesia. Some people are allergic to local anesthesia and this is quite rare. Overall it is considered quite safe. Epinephrine has to be used during
rhinoplasty to minimize bleeding so the surgeon can visualize what he is doing and sometimes the epinephrine reaction to the patient is overwhelming and they become quite anxious and it becomes difficult to do the surgery unless they have taken something like Valium orally. In my experience, in the vast majority of cases patients do quite well with oral sedation such as Valium and or versed using local anesthesia with epinephrine. Patient selection is crucial and the surgeon and the patient must be on the same page as far as the type of experience they are willing to undergo during surgery. If a patient is really frightened then either intravenous sedation or general anesthesia is preferred. In some cases patients have such a dramatic reaction to epinephrine that general anesthesia and or intravenous sedation is required to minimize the effects of epinephrine.
Sometimes the gases in general anesthesia cause more bleeding therefore. Intravenous sedation is the preferred method or a procedure called total intravenous general anesthesia is preferred.
I think one of the most important issues is your surgeon feeling comfortable during the procedure and you feeling comfortable with your surgeon.
30% of the general population has a fear of general anesthesia. In reality, studies have shown for healthy patients undergoing a planned operation, general anesthesia is about as dangerous as
pregnancy in a healthy woman.
When considering all ages and all illnesses and a group of 100,000 persons, the chance of dying is less than 13 deaths per 100,000 persons.
Remember, the majority of these deaths occur in patients over 70 years of age with multiple illnesses. Local anesthesia does have its risks however the general consensus is it is safer than general anesthesia although finding exact statistics on this matter is difficult.