Sustained Effect 1 Month After CSF Tap Test in Normal Pressure Hydrocephalus
Background The response to CSF tap test (TT) has been considered an indicator of normal pressure hydrocephalus (NPH) and a predictor of shunt effectiveness. Although the effects of the CSF TT are thought to be transient, the duration of those effects has not been studied in detail. Method We perform...
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| Veröffentlicht in: | Alzheimer's & dementia 2023-06, Vol.19 (S2), p.n/a |
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| creator | Ryoo, Nayoung Park, Young Ho Han, Sang‐Won Kim, SangYun |
| description | Background
The response to CSF tap test (TT) has been considered an indicator of normal pressure hydrocephalus (NPH) and a predictor of shunt effectiveness. Although the effects of the CSF TT are thought to be transient, the duration of those effects has not been studied in detail.
Method
We performed a retrospective analysis of 32 consecutive patients with NPH who underwent quantitative gait analysis before, immediately after, and 1 month after the CSF TT. Responses to the TT were defined as a 15% or greater improvements in step length or walking speed.
Result
Immediately after the CSF TT, 24 of 32 patients showed a response on step length or walking speed. Among the 24 patients with a response immediately after the TT, a sustained response 1 month after the TT was maintained in 16 patients. Furthermore, among the 8 patients without an immediate response, 5 patients showed a delayed response 1 month after TT.
Conclusion
The effects of the CSF TT on gait parameters were sustained for 1 month in approximately half of the patients with NPH. Decreased tensile strength of the ventricular wall after the TT might explain the sustained effects. |
| doi_str_mv | 10.1002/alz.066132 |
| format | Article |
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The response to CSF tap test (TT) has been considered an indicator of normal pressure hydrocephalus (NPH) and a predictor of shunt effectiveness. Although the effects of the CSF TT are thought to be transient, the duration of those effects has not been studied in detail.
Method
We performed a retrospective analysis of 32 consecutive patients with NPH who underwent quantitative gait analysis before, immediately after, and 1 month after the CSF TT. Responses to the TT were defined as a 15% or greater improvements in step length or walking speed.
Result
Immediately after the CSF TT, 24 of 32 patients showed a response on step length or walking speed. Among the 24 patients with a response immediately after the TT, a sustained response 1 month after the TT was maintained in 16 patients. Furthermore, among the 8 patients without an immediate response, 5 patients showed a delayed response 1 month after TT.
Conclusion
The effects of the CSF TT on gait parameters were sustained for 1 month in approximately half of the patients with NPH. Decreased tensile strength of the ventricular wall after the TT might explain the sustained effects.</description><identifier>ISSN: 1552-5260</identifier><identifier>EISSN: 1552-5279</identifier><identifier>DOI: 10.1002/alz.066132</identifier><language>eng</language><ispartof>Alzheimer's & dementia, 2023-06, Vol.19 (S2), p.n/a</ispartof><rights>2023 the Alzheimer's Association.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Falz.066132$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Falz.066132$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids></links><search><creatorcontrib>Ryoo, Nayoung</creatorcontrib><creatorcontrib>Park, Young Ho</creatorcontrib><creatorcontrib>Han, Sang‐Won</creatorcontrib><creatorcontrib>Kim, SangYun</creatorcontrib><title>Sustained Effect 1 Month After CSF Tap Test in Normal Pressure Hydrocephalus</title><title>Alzheimer's & dementia</title><description>Background
The response to CSF tap test (TT) has been considered an indicator of normal pressure hydrocephalus (NPH) and a predictor of shunt effectiveness. Although the effects of the CSF TT are thought to be transient, the duration of those effects has not been studied in detail.
Method
We performed a retrospective analysis of 32 consecutive patients with NPH who underwent quantitative gait analysis before, immediately after, and 1 month after the CSF TT. Responses to the TT were defined as a 15% or greater improvements in step length or walking speed.
Result
Immediately after the CSF TT, 24 of 32 patients showed a response on step length or walking speed. Among the 24 patients with a response immediately after the TT, a sustained response 1 month after the TT was maintained in 16 patients. Furthermore, among the 8 patients without an immediate response, 5 patients showed a delayed response 1 month after TT.
Conclusion
The effects of the CSF TT on gait parameters were sustained for 1 month in approximately half of the patients with NPH. Decreased tensile strength of the ventricular wall after the TT might explain the sustained effects.</description><issn>1552-5260</issn><issn>1552-5279</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LwzAchoMoOKcXP0HOQmeSNklzLGVzQv0DqxcvIc0fVunakrTI_PSrdHj09HsPz_vy4wHgHqMVRog8quZnhRjDMbkAC0wpiSjh4vIvM3QNbkL4QihBKaYLUOzGMKi6tQaunbN6gBi-dO2wh5kbrIf5bgNL1cPShgHWLXzt_EE18N3bEEZv4fZofKdtv1fNGG7BlVNNsHfnuwQfm3WZb6Pi7ek5z4pI4-mziDNEq7QSgmCCE1MllhtLqVOGC-WQS2OimdJIcEYSbQzhKmVCO6wrp6vExEvwMO9q34XgrZO9rw_KHyVG8teDnDzI2cME4xn-rht7_IeUWfF57pwAZJhfVg</recordid><startdate>202306</startdate><enddate>202306</enddate><creator>Ryoo, Nayoung</creator><creator>Park, Young Ho</creator><creator>Han, Sang‐Won</creator><creator>Kim, SangYun</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>202306</creationdate><title>Sustained Effect 1 Month After CSF Tap Test in Normal Pressure Hydrocephalus</title><author>Ryoo, Nayoung ; Park, Young Ho ; Han, Sang‐Won ; Kim, SangYun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1132-7605b8b9921214db4e7de55fad79af0f832c6ac097624cdd27a869cf1cbfcb4d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ryoo, Nayoung</creatorcontrib><creatorcontrib>Park, Young Ho</creatorcontrib><creatorcontrib>Han, Sang‐Won</creatorcontrib><creatorcontrib>Kim, SangYun</creatorcontrib><collection>CrossRef</collection><jtitle>Alzheimer's & dementia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ryoo, Nayoung</au><au>Park, Young Ho</au><au>Han, Sang‐Won</au><au>Kim, SangYun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sustained Effect 1 Month After CSF Tap Test in Normal Pressure Hydrocephalus</atitle><jtitle>Alzheimer's & dementia</jtitle><date>2023-06</date><risdate>2023</risdate><volume>19</volume><issue>S2</issue><epage>n/a</epage><issn>1552-5260</issn><eissn>1552-5279</eissn><abstract>Background
The response to CSF tap test (TT) has been considered an indicator of normal pressure hydrocephalus (NPH) and a predictor of shunt effectiveness. Although the effects of the CSF TT are thought to be transient, the duration of those effects has not been studied in detail.
Method
We performed a retrospective analysis of 32 consecutive patients with NPH who underwent quantitative gait analysis before, immediately after, and 1 month after the CSF TT. Responses to the TT were defined as a 15% or greater improvements in step length or walking speed.
Result
Immediately after the CSF TT, 24 of 32 patients showed a response on step length or walking speed. Among the 24 patients with a response immediately after the TT, a sustained response 1 month after the TT was maintained in 16 patients. Furthermore, among the 8 patients without an immediate response, 5 patients showed a delayed response 1 month after TT.
Conclusion
The effects of the CSF TT on gait parameters were sustained for 1 month in approximately half of the patients with NPH. Decreased tensile strength of the ventricular wall after the TT might explain the sustained effects.</abstract><doi>10.1002/alz.066132</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| title | Sustained Effect 1 Month After CSF Tap Test in Normal Pressure Hydrocephalus |
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