{"id":"https://openalex.org/W1997302366","doi":"https://doi.org/10.1212/wnl.28.8.835","title":"Normal pressure hydrocephalus due to membranous obstruction of the sylvian aqueduct","display_name":"Normal pressure hydrocephalus due to membranous obstruction of the sylvian aqueduct","publication_year":1978,"publication_date":"1978-08-01","ids":{"openalex":"https://openalex.org/W1997302366","doi":"https://doi.org/10.1212/wnl.28.8.835","mag":"1997302366","pmid":"https://pubmed.ncbi.nlm.nih.gov/308206"},"language":"en","primary_location":{"id":"doi:10.1212/wnl.28.8.835","doi":"https://doi.org/10.1212/wnl.28.8.835","is_oa":false,"landing_page_url":"https://doi.org/10.1212/wnl.28.8.835","pdf_url":null,"source":{"id":"https://openalex.org/S79704628","display_name":"Neurology","issn_l":"0028-3878","issn":["0028-3878","1526-632X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315671","host_organization_name":"Lippincott Williams & Wilkins","host_organization_lineage":["https://openalex.org/P4310315671","https://openalex.org/P4310318547"],"host_organization_lineage_names":["Lippincott Williams & Wilkins","Wolters Kluwer"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Neurology","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Martin J. Murphy","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I2802216851","display_name":"University of Iowa Hospitals and Clinics","ror":"https://ror.org/04g2swc55","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210142782"]},{"id":"https://openalex.org/I4210135841","display_name":"Iowa City VA Medical Center","ror":"https://ror.org/03r9k1585","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210132647","https://openalex.org/I4210135841","https://openalex.org/I4210159720"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Martin J. Murphy","raw_affiliation_strings":["Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210135841"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113964504","display_name":"Lynn W. Lyon","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I2802216851","display_name":"University of Iowa Hospitals and Clinics","ror":"https://ror.org/04g2swc55","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210142782"]},{"id":"https://openalex.org/I4210135841","display_name":"Iowa City VA Medical Center","ror":"https://ror.org/03r9k1585","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210132647","https://openalex.org/I4210135841","https://openalex.org/I4210159720"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lynn W. Lyon","raw_affiliation_strings":["Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210135841"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038003379","display_name":"Thomas A. Carlstrom","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I2802216851","display_name":"University of Iowa Hospitals and Clinics","ror":"https://ror.org/04g2swc55","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210142782"]},{"id":"https://openalex.org/I4210135841","display_name":"Iowa City VA Medical Center","ror":"https://ror.org/03r9k1585","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210132647","https://openalex.org/I4210135841","https://openalex.org/I4210159720"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Thomas A. Carlstrom","raw_affiliation_strings":["Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210135841"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080009061","display_name":"Dennis E. McDonnell","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},{"id":"https://openalex.org/I2802216851","display_name":"University of Iowa Hospitals and Clinics","ror":"https://ror.org/04g2swc55","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210142782"]},{"id":"https://openalex.org/I4210135841","display_name":"Iowa City VA Medical Center","ror":"https://ror.org/03r9k1585","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210132647","https://openalex.org/I4210135841","https://openalex.org/I4210159720"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dennis E. McDonnell","raw_affiliation_strings":["Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurology and Neurosurgery Services, Veterans Administration Hospital, Iowa City, and the Department of Neurology and Surgery (Neurosurgery), University of Iowa, College of Medicine, Iowa City, Iowa","institution_ids":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210135841"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.1351,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.36118715,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"28","issue":"8","first_page":"835","last_page":"835"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11406","display_name":"Cerebrospinal fluid and hydrocephalus","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2804","display_name":"Cellular and Molecular Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11406","display_name":"Cerebrospinal fluid and hydrocephalus","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2804","display_name":"Cellular and Molecular Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12622","display_name":"Neurosurgical Procedures and Complications","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11833","display_name":"Spinal Dysraphism and Malformations","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/normal-pressure-hydrocephalus","display_name":"normal pressure hydrocephalus","score":1.0},{"id":"https://openalex.org/keywords/membranous-obstruction","display_name":"membranous obstruction","score":0.8450000286102295},{"id":"https://openalex.org/keywords/aqueduct-of-sylvius","display_name":"aqueduct of Sylvius","score":0.9580000042915344},{"id":"https://openalex.org/keywords/air-encephalography","display_name":"air encephalography","score":0.8360000252723694},{"id":"https://openalex.org/keywords/contrast-ventriculography","display_name":"contrast ventriculography","score":0.984000027179718},{"id":"https://openalex.org/keywords/ventriculoatrial-shunt","display_name":"ventriculoatrial shunt","score":0.953000009059906},{"id":"https://openalex.org/keywords/cerebrospinal-fluid-obstruction","display_name":"cerebrospinal fluid obstruction","score":0.6990000009536743}],"concepts":[{"id":"https://openalex.org/C2778134817","wikidata":"https://www.wikidata.org/wiki/Q193003","display_name":"Hydrocephalus","level":2,"score":0.8201783299446106},{"id":"https://openalex.org/C197328160","wikidata":"https://www.wikidata.org/wiki/Q7505161","display_name":"Shunting","level":2,"score":0.7857568264007568},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.6981263160705566},{"id":"https://openalex.org/C141904268","wikidata":"https://www.wikidata.org/wiki/Q474","display_name":"Aqueduct","level":2,"score":0.6923184394836426},{"id":"https://openalex.org/C2776820357","wikidata":"https://www.wikidata.org/wiki/Q623016","display_name":"Cerebral aqueduct","level":3,"score":0.6361156105995178},{"id":"https://openalex.org/C2781223406","wikidata":"https://www.wikidata.org/wiki/Q105402","display_name":"Ventricular system","level":3,"score":0.5483574867248535},{"id":"https://openalex.org/C2908926015","wikidata":"https://www.wikidata.org/wiki/Q7205999","display_name":"Cerebral Ventriculography","level":3,"score":0.5360062122344971},{"id":"https://openalex.org/C2909819602","wikidata":"https://www.wikidata.org/wiki/Q1712213","display_name":"Communicating hydrocephalus","level":3,"score":0.46610769629478455},{"id":"https://openalex.org/C2780954326","wikidata":"https://www.wikidata.org/wiki/Q1416096","display_name":"Intracranial pressure","level":2,"score":0.46177682280540466},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.3899480402469635},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.3662105202674866},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.3353298306465149},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2620156407356262},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000368","descriptor_name":"Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001927","descriptor_name":"Brain Diseases","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D001927","descriptor_name":"Brain Diseases","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":false},{"descriptor_ui":"D002535","descriptor_name":"Cerebral Aqueduct","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":true},{"descriptor_ui":"D003251","descriptor_name":"Constriction, Pathologic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006849","descriptor_name":"Hydrocephalus","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":true},{"descriptor_ui":"D006850","descriptor_name":"Hydrocephalus, Normal Pressure","qualifier_ui":"Q000000981","qualifier_name":"diagnostic imaging","is_major_topic":false},{"descriptor_ui":"D006850","descriptor_name":"Hydrocephalus, Normal Pressure","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":true},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011011","descriptor_name":"Pneumoencephalography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D014695","descriptor_name":"Cerebral Ventriculography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1212/wnl.28.8.835","doi":"https://doi.org/10.1212/wnl.28.8.835","is_oa":false,"landing_page_url":"https://doi.org/10.1212/wnl.28.8.835","pdf_url":null,"source":{"id":"https://openalex.org/S79704628","display_name":"Neurology","issn_l":"0028-3878","issn":["0028-3878","1526-632X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310315671","host_organization_name":"Lippincott Williams & Wilkins","host_organization_lineage":["https://openalex.org/P4310315671","https://openalex.org/P4310318547"],"host_organization_lineage_names":["Lippincott Williams & Wilkins","Wolters Kluwer"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Neurology","raw_type":"journal-article"},{"id":"pmid:308206","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/308206","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Neurology","raw_type":"Case Reports"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.9391000270843506,"display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/case-report","display_name":"Case Report"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2424763985","https://openalex.org/W2038827326","https://openalex.org/W2409973819","https://openalex.org/W2055795427","https://openalex.org/W1976937071","https://openalex.org/W2139551361","https://openalex.org/W2466031316","https://openalex.org/W4400573057","https://openalex.org/W2407128207","https://openalex.org/W7099397790"],"abstract_inverted_index":{"In":[0],"a":[1,12],"patient":[2],"presenting":[3],"with":[4],"the":[5,16],"clinical":[6,33],"features":[7],"of":[8,15,18],"normal":[9],"pressure":[10],"hydrocephalus,":[11],"membranous":[13],"obstruction":[14],"aqueduct":[17],"Sylvius":[19],"was":[20],"demonstrated":[21],"by":[22],"combined":[23],"air":[24],"encephalography":[25],"and":[26],"contrast":[27],"ventriculography.":[28],"Ventriculoatrial":[29],"shunting":[30],"resulted":[31],"in":[32,38],"improvement":[34],"without":[35],"significant":[36],"change":[37],"ventricular":[39],"size.":[40]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
