Which gas is sometimes used in laparoscopic surgery for insufflation?

In laparoscopic surgery, carbon dioxide is the preferred gas for insufflation due to its specific properties. It is non-flammable, easily absorbed by the body, and readily eliminated through respiration, making it safe for use in a closed surgical environment. When carbon dioxide is introduced into the abdominal cavity, it creates space that allows the surgeon to visualize and access internal structures without making large incisions. This enhances the ability to perform minimally invasive procedures.

Other gases, such as oxygen and nitrous oxide, are either not suitable due to flammability concerns or can cause complications like gas embolism or increased pressure in the abdominal cavity. Helium, while less commonly used, does not provide the same advantageous characteristics as carbon dioxide for creating a consistent and safe workspace within the abdomen during laparoscopic procedures. Therefore, carbon dioxide is the optimal choice for insufflation in this context.