You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Use of nitrous oxide is contraindicated in all of the following surgeries except – and explain in detail?
Exentration is enucleation along with wide dissection of periorbital tissue. There is no air containing cavity or dead space formation, therefore N2O is not contraindicated.
N2O is contraindicated in :- Pneumothorax, pneumoperitoneum, emphysema, volvulus, acute intestinal obstruction, microlaryngeal surgeries, Middle ear surgery, tympanoplasties, posterior fossa surgery, laproscopy surgery, pneumoencephalum, vitrolental surgery.