History of general anesthesia

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Throughout recorded history, attempts at producing a state of general anesthesia can be traced back to the writings of ancient Sumerians, Babylonians, Assyrians, Akkadians, Egyptians, Persians, Indians, and Chinese. Despite significant advances in anatomy and surgical techniques during the Renaissance, surgery remained a last-resort treatment largely due to the pain associated with it. This limited surgical procedures to addressing only life-threatening conditions, with techniques focused on speed to limit blood loss. All of these interventions carried high risk of complications, especially death. Around 80% of surgeries led to severe infections, and 50% of patients died either during surgery or from complications thereafter. Many of the patients who were fortunate enough to survive remained psychologically traumatized for the rest of their lives. However, scientific discoveries in the late 18th and early 19th centuries paved the way for the development of modern anesthetic techniques....

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