Differences in mastoid pneumatization between Asians and Caucasians
Background: Anatomical differences of the mastoid pneumatization in Asian and Caucasian patients must be considered when performing the retrosigmoid craniotomy since it may have implications to avoid specific complications such as cerebrospinal fluid infections or fistula. Methods: We selected crani...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
March 2023
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| In: |
Journal of clinical neuroscience
Year: 2023, Volume: 109, Pages: 39-43 |
| ISSN: | 1532-2653 |
| DOI: | 10.1016/j.jocn.2023.01.009 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.jocn.2023.01.009 Verlag, lizenzpflichtig, Volltext: https://linkinghub.elsevier.com/retrieve/pii/S0967586823000188 
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| Author Notes: | Saiko Watanabe, Till Schneider, Kenichi Amagasaki, Hiroshi Nakaguchi, Andreas Unterberg, Philip Dao Trong |
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| 520 | |a Background: Anatomical differences of the mastoid pneumatization in Asian and Caucasian patients must be considered when performing the retrosigmoid craniotomy since it may have implications to avoid specific complications such as cerebrospinal fluid infections or fistula. Methods: We selected cranial CT scans of 120 Asian and 120 Caucasian patients, who were treated at the Mitsui Memorial Hospital (Japan) and at the Heidelberg University Hospital (Germany). Mastoid pneumatization was classified according to the relationship of the mastoid air cells (MAC) to the sigmoid sinus (Type I - III). The risk of mastoid air cell opening through craniotomy increases from Type I to III. Comparative analyses between gender and ethnicities were performed using the Chi2 Test and the independent T-Test and considered significant if p < 0.05. Result: In Caucasians, Type III pneumatization was significantly overrepresented compared to Type II or I, compared to the Asian cohort (Type III:II:I in Caucasians = 60 %:26 %:14 %; in Asians = 28 %:43 %:29 %). Importantly, we found significant differences in pneumatization types between Caucasians and Asians in both gender subgroups (m: Type III 60 % vs 35 %; Type II 30 % vs 36.7 %; Type I 10 % vs 28.3 %, p = 0.008; f: Type III 60 % vs 23.3 %, Type II 21.7 % vs 48.3 %, Type III 18.3 % vs 28.3 %, p < 0.001; Chi2 Test). Conclusion: Caucasian patients are more prone to the opening of the mastoid air cells than Asian patients when performing a retrosigmoid craniotomy due to differences in the degree of mastoid pneumatization. This may help to avoid complications such as postoperative infections or cerebrospinal-fluid fistula. | ||
| 650 | 4 | |a cerebellopontine | |
| 650 | 4 | |a management | |
| 650 | 4 | |a Mastoid air cells | |
| 650 | 4 | |a Mastoid pneumatization | |
| 650 | 4 | |a Racial differences | |
| 650 | 4 | |a removal | |
| 650 | 4 | |a Retrosigmoid craniotomy | |
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