Name of theme: Researching to apply nerve decompression microsurgery in treatment of cranial nerve V Code: 62720127; Major: Surgical Medicine - Cranial Nerves Research student: BUI HUY MANH Instructor: Associate Prof, Dr Dong Van He Training establishment: Hanoi Medical University New conclusions of the thesis: - For the first time, the thesis has built up a process of nerve decompression surgery in treatment of cranial nerve V including 6 steps, feasibly applicable in our country.