Biomedical subjects

Jizhou Guo

Publications and source records attributed to Jizhou Guo.

3 recordsLinked to original sources

PubMed2005

Vestibulotomy above a severely displaced facial nerve.

CONCLUSIONS: Vestibulotomy above a severely displaced facial nerve represents a new surgical approach to achieve serviceable hearing. The lack of facial nerve injury and the potential for hearing restoration make this procedure feasible in patients who would otherwise be marginal or poor surgical candidates. OBJECTIVE: To investigate the feasibility of vestibulotomy above a severely displaced facial nerve. MATERIAL AND METHODS: Eight patients with severe congenital conductive hearing loss underwent vestibulotomy above a severely displaced facial nerve and hearing reconstruction between January 2000 and January 2002. All patients had congenital middle ear deformities. The facial nerves overhung and concealed the oval window niche or lay inferior to the oval window. The facial nerves were transposed in order to reach the oval window niche in four of eight cases. RESULTS: Hearing gain was 15 dB in 2 ears, 16-25 dB in 3 and > 26 dB in 3. There were no cases of postoperative facial paresis.

Adolescent↗

PubMed2005

[Clinical application of multiplanar reconstruction of facial canal: preliminary report].

OBJECTIVE: To study clinical criterion of the anterior positior of mastoid segment and low position of tympanic segment in atresia of external auditory canal. METHOD: Facial canal of 80 cases was measured by multiplanar reconstruction. RESULT: A-B less than 0.4 mm was low position of tympanic segment and E-F less than 5 mm was anterior position of mastoid facial canal in atresia of external auditory canal, there was significant difference between the two subgroups (P < 0.01). CONCLUSION: The first time, the multiplanar reconstruction measurement criterion of facial structures in established. Multiplanar reconstruction system is useful for microsurgery doctors to precisely recognize the mark of high dangerous area in and surroundings.

Adolescent↗

PubMed2002

[Computerized tomographic evaluation of traumatic ossicles disruption].

OBJECTIVE: To investigate the importance of the high resolution computerized tomography of temporal bone in evaluation of traumatic lesions, particularly of the ossicular disruption. METHOD: Ten patients with traumatic ossicles dislocation underwent preoperative CT scanning followed by surgical exploration of the middle ear. RESULT: The radiographic finding was consistent with the operative demonstration for malleoincudal disarticulation (3 ears), incudostapedial dislocation (7 ears), and the fracture of temporal bone (8 ears). CONCLUSION: The incus was the most vulnerable ossicle in the trauma to the middle ear. CT scans can diagnose exactly the damage position in middle ear.

Adolescent↗