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 understandable because there are many levels of sedation. I will explain the different levels so you can make a more informed decision when discussing this with your surgeon or anesthesiologist. In cosmetic surgery, we often refer to the three distinct choices: local, IV or General Anesthesia.