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 type of anesthesia is generally used for minor surgeries (e.g., breast biopsies, vasectomies) and to stitch small wounds. It is usually administered by injection, which can be painful. However, the discomfort only lasts for a brief moment, and the anesthesia usually takes effect very quickly.