| 摘要 |
A blood-flow decrease preventing agent is used to negate or reduce the decreased oxygen delivery in abdominal organs caused by insufflating gas. Preferably a gas is delivered into the abdominal cavity consisting essential ly of the insufflating gas and the blood-flow decrease preventing agent. Very preferably, a gas is used consisting essentially of carbon dioxide as the insufflating gas and ethyl nitrite as the blood-flow to abdominal organ decrease preventing agent.
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