Electronystagmography in 166 patients with acoustic neuroma before and after surgery
To analyze the preoperative patterns of caloric test, eye tracking test (ETT), and optokinetic pattern (OKP) in patients with acoustic neuroma (AN) and compare them with the postoperative patterns of ETT and OKP results A total of 166 patients with AN (102 women; mean age: 41 years, range: 11–79 yea...
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| Veröffentlicht in: | Auris, nasus, larynx nasus, larynx, 2022-08, Vol.49 (4), p.571-576 |
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| creator | Itani, Shigeto Otsuka, Koji Ogawa, Yasuo Inagaki, Taro Nagai, Noriko Konomi, Ujimoto Kohno, Michihiro Tsukahara, Kiyoaki |
| description | To analyze the preoperative patterns of caloric test, eye tracking test (ETT), and optokinetic pattern (OKP) in patients with acoustic neuroma (AN) and compare them with the postoperative patterns of ETT and OKP results
A total of 166 patients with AN (102 women; mean age: 41 years, range: 11–79 years) who were being treated at our hospital between 2013 and 2016 were enrolled. Preoperatively, a detailed history was taken regarding the presence of subjective symptoms of equilibrium dysfunction, and the patients underwent caloric test, ETT, and OKP. They were classified into three groups based on the preoperative ETT and OKP results as follows: Group A, normal ETT and OKP; Group B, either ETT or OKP was abnormal; and Group C, both ETT and OKP were abnormal. All patients were evaluated for subjective symptoms of vestibular dysfunction and were also grouped based on the tumor size on imaging. All surgeries were performed by a neurosurgeon using the lateral suboccipital retrosigmoid approach. About one month later after surgery, postoperatively ETT was performed on 150 patients and OKP was performed on 148 patients. The preoperative and postoperative ETT and OKP results were compared. The same two specialists analyzed the postoperative ETT and OKP findings as improved, unchanged, or worse. Student t-test was used for statistical analysis and a P-value of |
| doi_str_mv | 10.1016/j.anl.2021.10.010 |
| format | Article |
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A total of 166 patients with AN (102 women; mean age: 41 years, range: 11–79 years) who were being treated at our hospital between 2013 and 2016 were enrolled. Preoperatively, a detailed history was taken regarding the presence of subjective symptoms of equilibrium dysfunction, and the patients underwent caloric test, ETT, and OKP. They were classified into three groups based on the preoperative ETT and OKP results as follows: Group A, normal ETT and OKP; Group B, either ETT or OKP was abnormal; and Group C, both ETT and OKP were abnormal. All patients were evaluated for subjective symptoms of vestibular dysfunction and were also grouped based on the tumor size on imaging. All surgeries were performed by a neurosurgeon using the lateral suboccipital retrosigmoid approach. About one month later after surgery, postoperatively ETT was performed on 150 patients and OKP was performed on 148 patients. The preoperative and postoperative ETT and OKP results were compared. The same two specialists analyzed the postoperative ETT and OKP findings as improved, unchanged, or worse. Student t-test was used for statistical analysis and a P-value of <0.05 was considered to indicate a statistically significant difference.
The average canal paresis(CP) % was 65.8%. No correlation was found between tumor size and CP%. The other side, the average tumor size in each group was 26.6 mm, 28.7 mm, and 37.8 mm in the Group A, B, and C, respectively. The average tumor size in Group C was significantly greater than those of Group A and B (P<0.01). The presence of gait disturbance in Group C was significantly higher than the other groups (P<0.01). The other side, abnormal ETT and OKP were seen in 32.5% and 31.9% of all patients, respectively. ETT and OKP results improved postoperatively in 67.4% and 68.9% of these patients.
Abnormal ETT and OKP results showed positive correlations with the tumor size and presence of subjective symptoms. Further, dysfunction of cerebellum and brain stem owing to tumor compression was observed to recover in many cases after surgery.</description><identifier>ISSN: 0385-8146</identifier><identifier>EISSN: 1879-1476</identifier><identifier>DOI: 10.1016/j.anl.2021.10.010</identifier><identifier>PMID: 34802775</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Acoustic neuroma ; Adolescent ; Adult ; Aged ; Caloric test ; Caloric Tests ; Child ; Electronystagmography ; Eye tracking test ; Female ; Humans ; Middle Aged ; Neuroma, Acoustic - diagnostic imaging ; Neuroma, Acoustic - pathology ; Neuroma, Acoustic - surgery ; Optokinetic pattern ; Postoperative Period ; Vestibular schwannoma ; Young Adult</subject><ispartof>Auris, nasus, larynx, 2022-08, Vol.49 (4), p.571-576</ispartof><rights>2021</rights><rights>Copyright © 2021. Published by Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c377t-5ecbef78dadfd873f14ee045d8fe4525fbef997f2bea9f2a748cf079532c8b243</citedby><cites>FETCH-LOGICAL-c377t-5ecbef78dadfd873f14ee045d8fe4525fbef997f2bea9f2a748cf079532c8b243</cites><orcidid>0000-0002-4625-4319</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0385814621002534$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34802775$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Itani, Shigeto</creatorcontrib><creatorcontrib>Otsuka, Koji</creatorcontrib><creatorcontrib>Ogawa, Yasuo</creatorcontrib><creatorcontrib>Inagaki, Taro</creatorcontrib><creatorcontrib>Nagai, Noriko</creatorcontrib><creatorcontrib>Konomi, Ujimoto</creatorcontrib><creatorcontrib>Kohno, Michihiro</creatorcontrib><creatorcontrib>Tsukahara, Kiyoaki</creatorcontrib><title>Electronystagmography in 166 patients with acoustic neuroma before and after surgery</title><title>Auris, nasus, larynx</title><addtitle>Auris Nasus Larynx</addtitle><description>To analyze the preoperative patterns of caloric test, eye tracking test (ETT), and optokinetic pattern (OKP) in patients with acoustic neuroma (AN) and compare them with the postoperative patterns of ETT and OKP results
A total of 166 patients with AN (102 women; mean age: 41 years, range: 11–79 years) who were being treated at our hospital between 2013 and 2016 were enrolled. Preoperatively, a detailed history was taken regarding the presence of subjective symptoms of equilibrium dysfunction, and the patients underwent caloric test, ETT, and OKP. They were classified into three groups based on the preoperative ETT and OKP results as follows: Group A, normal ETT and OKP; Group B, either ETT or OKP was abnormal; and Group C, both ETT and OKP were abnormal. All patients were evaluated for subjective symptoms of vestibular dysfunction and were also grouped based on the tumor size on imaging. All surgeries were performed by a neurosurgeon using the lateral suboccipital retrosigmoid approach. About one month later after surgery, postoperatively ETT was performed on 150 patients and OKP was performed on 148 patients. The preoperative and postoperative ETT and OKP results were compared. The same two specialists analyzed the postoperative ETT and OKP findings as improved, unchanged, or worse. Student t-test was used for statistical analysis and a P-value of <0.05 was considered to indicate a statistically significant difference.
The average canal paresis(CP) % was 65.8%. No correlation was found between tumor size and CP%. The other side, the average tumor size in each group was 26.6 mm, 28.7 mm, and 37.8 mm in the Group A, B, and C, respectively. The average tumor size in Group C was significantly greater than those of Group A and B (P<0.01). The presence of gait disturbance in Group C was significantly higher than the other groups (P<0.01). The other side, abnormal ETT and OKP were seen in 32.5% and 31.9% of all patients, respectively. ETT and OKP results improved postoperatively in 67.4% and 68.9% of these patients.
Abnormal ETT and OKP results showed positive correlations with the tumor size and presence of subjective symptoms. Further, dysfunction of cerebellum and brain stem owing to tumor compression was observed to recover in many cases after surgery.</description><subject>Acoustic neuroma</subject><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Caloric test</subject><subject>Caloric Tests</subject><subject>Child</subject><subject>Electronystagmography</subject><subject>Eye tracking test</subject><subject>Female</subject><subject>Humans</subject><subject>Middle Aged</subject><subject>Neuroma, Acoustic - diagnostic imaging</subject><subject>Neuroma, Acoustic - pathology</subject><subject>Neuroma, Acoustic - surgery</subject><subject>Optokinetic pattern</subject><subject>Postoperative Period</subject><subject>Vestibular schwannoma</subject><subject>Young Adult</subject><issn>0385-8146</issn><issn>1879-1476</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kMtOAyEUhonR2Fp9ADeGpZupwFxg4so09ZI0cVPXhGEOLc3cBEbTt5em1aUrAnz_n3M-hG4pmVNCi4fdXHXNnBFG431OKDlDUyp4mdCMF-doSlKRJ4JmxQRdeb8jhKQ8LS_RJM0EYZznU7ReNqCD67u9D2rT9hunhu0e2w7TosCDCha64PG3DVusdD_6YDXuYHR9q3AFpneAVVdjZQI47Ee3Abe_RhdGNR5uTucMfTwv14vXZPX-8rZ4WiU65TwkOejYwEWtalMLnhqaAZAsr4WBLGe5ib9lyQ2rQJWGKZ4JbQgv85RpUbEsnaH7Y-_g-s8RfJCt9RqaRnUQR5WsIERETpQRpUdUu957B0YOzrbK7SUl8iBT7mSUKQ8yD09RZszcnerHqoX6L_FrLwKPRwDikl8WnPQ6-tJQWxetyrq3_9T_ALw9hmA</recordid><startdate>202208</startdate><enddate>202208</enddate><creator>Itani, Shigeto</creator><creator>Otsuka, Koji</creator><creator>Ogawa, Yasuo</creator><creator>Inagaki, Taro</creator><creator>Nagai, Noriko</creator><creator>Konomi, Ujimoto</creator><creator>Kohno, Michihiro</creator><creator>Tsukahara, Kiyoaki</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-4625-4319</orcidid></search><sort><creationdate>202208</creationdate><title>Electronystagmography in 166 patients with acoustic neuroma before and after surgery</title><author>Itani, Shigeto ; Otsuka, Koji ; Ogawa, Yasuo ; Inagaki, Taro ; Nagai, Noriko ; Konomi, Ujimoto ; Kohno, Michihiro ; Tsukahara, Kiyoaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-5ecbef78dadfd873f14ee045d8fe4525fbef997f2bea9f2a748cf079532c8b243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Acoustic neuroma</topic><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Caloric test</topic><topic>Caloric Tests</topic><topic>Child</topic><topic>Electronystagmography</topic><topic>Eye tracking test</topic><topic>Female</topic><topic>Humans</topic><topic>Middle Aged</topic><topic>Neuroma, Acoustic - diagnostic imaging</topic><topic>Neuroma, Acoustic - pathology</topic><topic>Neuroma, Acoustic - surgery</topic><topic>Optokinetic pattern</topic><topic>Postoperative Period</topic><topic>Vestibular schwannoma</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Itani, Shigeto</creatorcontrib><creatorcontrib>Otsuka, Koji</creatorcontrib><creatorcontrib>Ogawa, Yasuo</creatorcontrib><creatorcontrib>Inagaki, Taro</creatorcontrib><creatorcontrib>Nagai, Noriko</creatorcontrib><creatorcontrib>Konomi, Ujimoto</creatorcontrib><creatorcontrib>Kohno, Michihiro</creatorcontrib><creatorcontrib>Tsukahara, Kiyoaki</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Auris, nasus, larynx</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Itani, Shigeto</au><au>Otsuka, Koji</au><au>Ogawa, Yasuo</au><au>Inagaki, Taro</au><au>Nagai, Noriko</au><au>Konomi, Ujimoto</au><au>Kohno, Michihiro</au><au>Tsukahara, Kiyoaki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electronystagmography in 166 patients with acoustic neuroma before and after surgery</atitle><jtitle>Auris, nasus, larynx</jtitle><addtitle>Auris Nasus Larynx</addtitle><date>2022-08</date><risdate>2022</risdate><volume>49</volume><issue>4</issue><spage>571</spage><epage>576</epage><pages>571-576</pages><issn>0385-8146</issn><eissn>1879-1476</eissn><abstract>To analyze the preoperative patterns of caloric test, eye tracking test (ETT), and optokinetic pattern (OKP) in patients with acoustic neuroma (AN) and compare them with the postoperative patterns of ETT and OKP results
A total of 166 patients with AN (102 women; mean age: 41 years, range: 11–79 years) who were being treated at our hospital between 2013 and 2016 were enrolled. Preoperatively, a detailed history was taken regarding the presence of subjective symptoms of equilibrium dysfunction, and the patients underwent caloric test, ETT, and OKP. They were classified into three groups based on the preoperative ETT and OKP results as follows: Group A, normal ETT and OKP; Group B, either ETT or OKP was abnormal; and Group C, both ETT and OKP were abnormal. All patients were evaluated for subjective symptoms of vestibular dysfunction and were also grouped based on the tumor size on imaging. All surgeries were performed by a neurosurgeon using the lateral suboccipital retrosigmoid approach. About one month later after surgery, postoperatively ETT was performed on 150 patients and OKP was performed on 148 patients. The preoperative and postoperative ETT and OKP results were compared. The same two specialists analyzed the postoperative ETT and OKP findings as improved, unchanged, or worse. Student t-test was used for statistical analysis and a P-value of <0.05 was considered to indicate a statistically significant difference.
The average canal paresis(CP) % was 65.8%. No correlation was found between tumor size and CP%. The other side, the average tumor size in each group was 26.6 mm, 28.7 mm, and 37.8 mm in the Group A, B, and C, respectively. The average tumor size in Group C was significantly greater than those of Group A and B (P<0.01). The presence of gait disturbance in Group C was significantly higher than the other groups (P<0.01). The other side, abnormal ETT and OKP were seen in 32.5% and 31.9% of all patients, respectively. ETT and OKP results improved postoperatively in 67.4% and 68.9% of these patients.
Abnormal ETT and OKP results showed positive correlations with the tumor size and presence of subjective symptoms. Further, dysfunction of cerebellum and brain stem owing to tumor compression was observed to recover in many cases after surgery.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>34802775</pmid><doi>10.1016/j.anl.2021.10.010</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-4625-4319</orcidid></addata></record> |
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| ispartof | Auris, nasus, larynx, 2022-08, Vol.49 (4), p.571-576 |
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| subjects | Acoustic neuroma Adolescent Adult Aged Caloric test Caloric Tests Child Electronystagmography Eye tracking test Female Humans Middle Aged Neuroma, Acoustic - diagnostic imaging Neuroma, Acoustic - pathology Neuroma, Acoustic - surgery Optokinetic pattern Postoperative Period Vestibular schwannoma Young Adult |
| title | Electronystagmography in 166 patients with acoustic neuroma before and after surgery |
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