Surgical consideration to optic nerve protrusion according to sinus computed tomography

Ying Lin Chen; Li Ang Lee; Kun Eng Lim

doi:10.1016/j.otohns.2005.10.036

Surgical consideration to optic nerve protrusion according to sinus computed tomography

Ying Lin Chen, Li Ang Lee, Kun Eng Lim^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

8 Scopus citations

Abstract

OBJECTIVES: This study aimed to investigate the prevalence of optic nerve protrusion (ONP) and its clinical indicators by using sinus computed tomography (CT) scan. STUDY DESIGN: Sinus CT scans of 260 consecutive patients with chronic inflammatory sinus disease were reviewed. RESULTS: The prevalence of ONP in our study population was 28%. Nineteen percent of the optic nerves protruded into the sphenoid sinuses including indentation of the sinus wall (12%) and coursing through the sphenoid sinus (8%). In the presence of contralateral ONP and/or ipsilateral anterior clinoid process pneumatization, the chance of ONP occurrence was significantly higher (both P < 0.01). They were reliable indicators of ONP (R² = 0.47, P < 0.01). CONCLUSIONS: ONP is a common anatomic variation observed in patients with chronic inflammatory sinus disease. To reduce optic nerve damage in surgeries, the presence of ONP according to sinus CT scans and the intraoperative findings should be carefully evaluated. EBM rating: C-4

Original language	English
Pages (from-to)	499-505
Number of pages	7
Journal	Otolaryngology - Head and Neck Surgery (United States)
Volume	134
Issue number	3
DOIs	https://doi.org/10.1016/j.otohns.2005.10.036
State	Published - 03 2006
Externally published	Yes

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10.1016/j.otohns.2005.10.036

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title = "Surgical consideration to optic nerve protrusion according to sinus computed tomography",

abstract = "OBJECTIVES: This study aimed to investigate the prevalence of optic nerve protrusion (ONP) and its clinical indicators by using sinus computed tomography (CT) scan. STUDY DESIGN: Sinus CT scans of 260 consecutive patients with chronic inflammatory sinus disease were reviewed. RESULTS: The prevalence of ONP in our study population was 28%. Nineteen percent of the optic nerves protruded into the sphenoid sinuses including indentation of the sinus wall (12%) and coursing through the sphenoid sinus (8%). In the presence of contralateral ONP and/or ipsilateral anterior clinoid process pneumatization, the chance of ONP occurrence was significantly higher (both P < 0.01). They were reliable indicators of ONP (R2 = 0.47, P < 0.01). CONCLUSIONS: ONP is a common anatomic variation observed in patients with chronic inflammatory sinus disease. To reduce optic nerve damage in surgeries, the presence of ONP according to sinus CT scans and the intraoperative findings should be carefully evaluated. EBM rating: C-4",

author = "Chen, {Ying Lin} and Lee, {Li Ang} and Lim, {Kun Eng}",

year = "2006",

month = mar,

doi = "10.1016/j.otohns.2005.10.036",

language = "英语",

volume = "134",

pages = "499--505",

journal = "Otolaryngology - Head and Neck Surgery (United States)",

issn = "0194-5998",

publisher = "John Wiley and Sons Inc",

number = "3",

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T1 - Surgical consideration to optic nerve protrusion according to sinus computed tomography

AU - Chen, Ying Lin

AU - Lee, Li Ang

AU - Lim, Kun Eng

PY - 2006/3

Y1 - 2006/3

N2 - OBJECTIVES: This study aimed to investigate the prevalence of optic nerve protrusion (ONP) and its clinical indicators by using sinus computed tomography (CT) scan. STUDY DESIGN: Sinus CT scans of 260 consecutive patients with chronic inflammatory sinus disease were reviewed. RESULTS: The prevalence of ONP in our study population was 28%. Nineteen percent of the optic nerves protruded into the sphenoid sinuses including indentation of the sinus wall (12%) and coursing through the sphenoid sinus (8%). In the presence of contralateral ONP and/or ipsilateral anterior clinoid process pneumatization, the chance of ONP occurrence was significantly higher (both P < 0.01). They were reliable indicators of ONP (R2 = 0.47, P < 0.01). CONCLUSIONS: ONP is a common anatomic variation observed in patients with chronic inflammatory sinus disease. To reduce optic nerve damage in surgeries, the presence of ONP according to sinus CT scans and the intraoperative findings should be carefully evaluated. EBM rating: C-4

AB - OBJECTIVES: This study aimed to investigate the prevalence of optic nerve protrusion (ONP) and its clinical indicators by using sinus computed tomography (CT) scan. STUDY DESIGN: Sinus CT scans of 260 consecutive patients with chronic inflammatory sinus disease were reviewed. RESULTS: The prevalence of ONP in our study population was 28%. Nineteen percent of the optic nerves protruded into the sphenoid sinuses including indentation of the sinus wall (12%) and coursing through the sphenoid sinus (8%). In the presence of contralateral ONP and/or ipsilateral anterior clinoid process pneumatization, the chance of ONP occurrence was significantly higher (both P < 0.01). They were reliable indicators of ONP (R2 = 0.47, P < 0.01). CONCLUSIONS: ONP is a common anatomic variation observed in patients with chronic inflammatory sinus disease. To reduce optic nerve damage in surgeries, the presence of ONP according to sinus CT scans and the intraoperative findings should be carefully evaluated. EBM rating: C-4

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DO - 10.1016/j.otohns.2005.10.036

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AN - SCOPUS:33144478968

SN - 0194-5998

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JO - Otolaryngology - Head and Neck Surgery (United States)

JF - Otolaryngology - Head and Neck Surgery (United States)

IS - 3

ER -

Surgical consideration to optic nerve protrusion according to sinus computed tomography

Abstract

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