Carbon dioxide laser gas has been used in ear surgery for at least 40 years and has a wide range of applications. The applicable fields of CO2 laser in ototomy include laser tympanostomy, laser assisted tympanoplasty and other tympanoplasty operations, primary and modified artificial stapes surgery, as well as surgical resection of chronic proliferative otitis media, tympanosclerosis, cholesteatoma and external auditory meatus proliferative lesions.

CO2 laser tympanostomy is a non-contact operation of tympanic membrane, which avoids the general anesthesia required by traditional catheterization. It has reliable ventilation time and simple operation. The postoperative recurrence rate was similar to that of periosteum catheterization, and the complications were low. Most patients no longer needed tympanic membrane catheterization. Therefore, CO2 laser tympanostomy is a safe and effective method for the treatment of secretory otitis media. Acute suppurative otitis media. For acute suppurative otitis media, tympanum abscess needs drainage but the tympanic membrane has not perforated, tympanotomy can be used for decompression. Like the treatment of secretous otitis media, CO2 laser tympanostomy can effectively relieve tympanic cavity pus, which is conducive to the healing of the infected tympanic membrane. Besides, it is highly repetitive, safe and effective, and surface anesthesia with tetracaine can meet the surgical requirements.

The overall efficacy of CO2 laser-assisted myringoplasty is satisfactory. Compared with traditional surgical treatment, this surgical method has the advantages of simple operation, less trauma and repeatability.

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