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Anesthesiologists Can Help Cut Climate Change
麻醉師的選擇

When they wheel you into the operating room, climate change is probably the last thing on your mind. But maybe it should be on your anesthesiologist’s mind. Because the gases used to knock you out contribute to global warming.
當他們把你推進手術(shù)室時，你可能壓根兒就不會想到氣候變化。但這點確實你的麻醉醫(yī)生應該考慮到的問題。應為把你放倒的氣體正是促進溫室效應的“功臣”。

Researchers, including one from the Jet Propulsion Laboratory at CalTech, a chemist from the University of Copenhagen and an anesthesiologist from the University of Michigan Medical School, studied three anesthetic gases: isoflurane, desflurane and sevoflurane.
加州理工學院氣體噴進實驗室的一位研究人員，哥本哈根大學的一位藥劑師和密歇根大學醫(yī)學院的一個麻醉師研究了三種麻醉氣體：異氟烷、地氟烷和七氟烷。

The compounds are in a class of gases related to a refrigerant that’s about to be banned in Europe. In the worst case each pound of desflurane that enters the atmosphere is the equivalent of 1,620 pounds of carbon dioxide. The researchers say that on average the amount of anesthesia used worldwide for surgery annually has the warming equivalent of one million cars. The study is in the British Journal of Anaesthesia. [M. P. Sulbaek Andersen et al., "Inhalation Anaesethics and Climate Change"]
這些化合物是一種歐洲即將禁止的制冷劑的同族氣體。最糟糕的情況下，進入大氣后的地氟烷，一磅可抵1620磅的二氧化碳。研究人員表示平均每年全球手術(shù)時使用的麻醉劑量造成的溫室效應相當于一百萬輛汽車。該項研究發(fā)表在英國期刊《麻醉術(shù)》上。

The other two gases have significantly less impact: isoflurane is only a third as powerful a greenhouse gas as is desflurane and sevoflurane has only an eighth of desflurane’s effect. So, say the researchers, if a choice can be safely made, anesthesiologists should go with the one that’s kindest to the climate.
另外兩種氣體產(chǎn)生的影響就小得多。異氟烷所產(chǎn)生的溫室效應僅有地氟烷的三分之一，七氟烷僅有八分之一。所以，研究人員認為，在保證安全的情況下，麻醉師們應當選擇對氣候最有利的氣體。

—Cynthia Graber

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