목적: It is well established that Eustachian tube(E-tube) function improves after tonsillectomy and adenoidectomy. However, there is limited evidence regarding the effects of powered intracapsular tonsillectomy and adenoidectomy (PITA) on E-tube function. This study aimed to assess the changes in middle ear conditions in patients undergoing these specific surgical procedures. 방법:Seventeen patients were monitored both before and after the surgery. All patients underwent PITA, and assessments of E-tube function, middle ear pressure, and tympanometry were conducted both pre-operatively and post- operatively. 결과:There was a significant improvement in middle ear pressure post-surgery, suggesting a positive impact of the procedures on middle ear aeration (p=0.021). However, the E-tube function itself did not exhibit significant changes (p=0.609), indicating that the surgical intervention may not directly influence E-tube physiology. Tympanometry showed that seven out of nine patients transitioned from a Type C tympanogram, indicative of negative middle ear pressure, to a Type A tympanogram, reflecting normalized middle ear pressure (chi square test p=0.002). 결론:These findings highlight the potential benefits of PITA in improving middle ear conditions, despite minimal direct changes in E-tube function.