Anesthesiology
Anesthesiology is the medical specialty devoted to anesthesia, pain medicine, and the care of patients before, during, and after surgery.
General anesthesia: A drug-induced state of unconsciousness with reduced awareness of pain and impaired protective reflexes. It is the anesthetic approach used when surgery requires unconsciousness and immobility.
Perioperative medicine: Medical care that spans the period before, during, and after surgery. It captures anesthesiology's responsibility beyond administering anesthetic drugs in the operating room.
Nervous system: The body's network of brain, spinal cord, and nerves that senses, processes, and coordinates activity. Anesthesia alters nervous-system signaling to change awareness, sensation, and movement.
Surgery: The branch of medicine that treats disease or injury through operative procedures. Surgeons perform procedures; anesthesiologists manage anesthesia and patients' physiological stability around them.
Ether anesthesia: The use of inhaled ether to produce insensibility during surgery, publicly demonstrated in 1846. Its demonstration helped establish that surgery could be performed without the full experience of pain.
Regional anesthesia: Anesthesia that blocks sensation in a large region of the body, often while the patient remains awake. Nerve blocks and neuraxial techniques provide an alternative to general anesthesia for many procedures.
Acute pain management: Assessment and treatment of short-term pain, including pain after injury or surgery. Anesthesiologists often design strategies to control pain during surgical recovery.
Pain: An unpleasant sensory and emotional experience associated with actual or potential tissue damage. Understanding pain helps guide anesthetic choices and postoperative symptom control.
Sedation: Drug-induced reduction in alertness that ranges from minimal relaxation to deep unresponsiveness. Sedation is not identical to general anesthesia and may preserve some awareness and reflexes.
William T. G. Morton: An American dentist associated with the public demonstration of ether anesthesia in Boston in 1846. His demonstration became a landmark in the development of anesthetic practice.