However, there are groups of anesthetists who prefer regional anesthesia and have managed, through the use of ultrasound, to reduce the effective amount of the drugs in order to achieve surgical blockade with a minimum amount of local anesthetic.
Sin embargo, existen grupos de anestesiólogos regionalistas que, mediante la ultrasonografía, han logrado reducir las cantidades de fármacos efectivos para alcanzar un bloqueo quirúrgico con la mínima cantidad de anestésico local.