[Therapeutic effect of ß-tricalcium phosphate in mastoid cavity obliterationunder endoscope].
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
; 38(7): 651-655, 2024 Jul.
Article
in Zh
| MEDLINE
| ID: mdl-38973048
ABSTRACT
Objective:
To investigate the therapeutic effect of ß-tricalcium phosphate in mastoid cavity obliteration for middle ear cholesteatoma under endoscope.Methods:
Sixty patients with middle ear cholesteatoma admitted to our department from September 2021 to March 2022 were included in this study. The observation groupï¼n=30ï¼ received ß-tricalcium phosphate during mastoid cavity obliteration. The control groupï¼n=30ï¼ received autologous tissue during mastoid cavity obliteration. Pure tone audiometry was performed before surgery and after surgery in both groups, and the air conduction thresholds of 500, 1 000, 2 000 and 4 000 Hz were recorded. The external acoustic meatus cross-sectional area within 1 cm of the external acoustic meatus opening was measured during the operation and after the operation. The differences of postoperative ear drying time, hearing change and mastoid cavity healing were compared between the two groups.Results:
The duration of postoperative dry ear in the observation group was 2-14 weeks, with an average of ï¼9.4±2.7ï¼ weeks, while that in the control group was 4-26 weeks, with an average ofï¼16.0±5.7ï¼ weeks. The difference in dry ear time between the two groups was statistically significantï¼P<0.05ï¼. In the observation group, the threshold change was -19-27 dB, with an average ofï¼6.4±10.7ï¼ dB, and in the control group, the threshold change was -9-17 dB, with an average of ï¼4.7±7.1ï¼ dB. There was no significant difference in hearing change between the two groupsï¼P>0.05ï¼. In the observation group, the cross-sectional area of 1 cm inside the ear canal opening was -5.9-8.2 mm², with an average of ï¼-0.6±2.6ï¼ mm², and in the control group, the cross-sectional area of 1 cm inside the ear canal opening was -5.5-5.2 mm², with an average of ï¼-0.4±2.3ï¼ mm². There was no significant difference in intraoperative cavity changes between the two groupsï¼P>0.05ï¼.Conclusion:
The application of ß-tricalcium phosphate to fill the mastoid cavity during the operation of endoscopic middle ear cholesteatoma has no adverse effect on the hearing of patients, can shorten the postoperative dry ear time, and results in good postoperative healing, which is worth promoting.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Calcium Phosphates
/
Cholesteatoma, Middle Ear
/
Mastoid
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Language:
Zh
Journal:
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Year:
2024
Document type:
Article