The words tijera and tijeras can be used interchangeably in Spanish to refer to a single pair of scissors.
Both IV sedation (twilight) and general anesthesia are used commonly for cosmetic or plastic surgery. Regardless of technique, the patient's vital signs must be monitored, which include but not limited to heart rate, blood pressure, and breathing rate.
This is why I have chosen to use IV sedation for all cosmetic procedures, including nose surgery, liposuction and breast augmentation in Dallas. The reason this method is so safe is because you are breathing on your own, without the help of a machine and breathing tube, as would be used with general anesthesia.