A text-book of practical therapeutics . oftenadvisable to block these impulses by injecting procaine into oraround the tributary nerve, thereby protecting the central nervoussystem. Some physicians used morphine hypodermically before ETHER 281 operation to benumb the patients sensibilities with the hope thatless ether will be required. This is wise in some cases when greatanticipatory dread is felt. Instead of pushing the anesthetic so that very deep anesthesia isproduced when an important nerve or organ is attacked, it is betterto let up at this moment, since by this means pain is prevented,
A text-book of practical therapeutics . oftenadvisable to block these impulses by injecting procaine into oraround the tributary nerve, thereby protecting the central nervoussystem. Some physicians used morphine hypodermically before ETHER 281 operation to benumb the patients sensibilities with the hope thatless ether will be required. This is wise in some cases when greatanticipatory dread is felt. Instead of pushing the anesthetic so that very deep anesthesia isproduced when an important nerve or organ is attacked, it is betterto let up at this moment, since by this means pain is prevented, butthe lower vital centers are not subjected to both shock and the drugin large amounts at the same moment. In operations on the upper air-passages, and those involving thethoracic cavity, the method of intratracheal insufflation is nowlargely resorted to, since by this means anesthesia and respirationcan be carried out even if the patient stops voluntary the instrument is introduced into the larynx this organ should. Fig. 47.—Schema illustrating the direction of motion to be imparted to the laryngealspeculum in exposure of the larynx for the introduction of ether insufflation tubes.(Chevalier Jackson.) be carefully examined to determine its size, its healthfulness, andthe absence of deformity. The patient should be anesthetized bythe ordinary open method. The head should be sharply flexedbackward on the neck, and the neck extended by drawing the headfrom the trunk. The occiput remains on a plane with the table,but the cervical vertebrae are arched forward. Jackson insists thatno gag should be used, as it presses down the lower jaw. Thespeculum must be passed beyond the epiglottis, but not far enoughto lift the cricoid cartilage. Holding the speculum in the left hand,the operator with his right hand elevates the upper lip of the patientso it will not be pressed against the teeth. The spatula portion ofthe speculum is passed back over the tongue half an inch
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttherape, bookyear1922
