{"id":"https://openalex.org/W148807966","doi":null,"title":"Myxomatous mitral valve chordae. I: Mechanical properties.","display_name":"Myxomatous mitral valve chordae. I: Mechanical properties.","publication_year":2001,"publication_date":"2001-05-01","ids":{"openalex":"https://openalex.org/W148807966","mag":"148807966","pmid":"https://pubmed.ncbi.nlm.nih.gov/11380094"},"language":"en","primary_location":{"id":"pmid:11380094","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/11380094","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":"The Journal of heart valve disease","raw_type":"Journal Article"},"volume":null,"type":"article","indexed_in":["pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5110552388","display_name":"J. Barber","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1316902750","display_name":"Cleveland Clinic","ror":"https://ror.org/03xjacd83","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1316902750"]},{"id":"https://openalex.org/I4405287411","display_name":"Cleveland Clinic Research","ror":"https://ror.org/053229s83","country_code":"US","type":"facility","lineage":["https://openalex.org/I1316902750","https://openalex.org/I4405287411"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"J E Barber","raw_affiliation_strings":["Department of Biomedical Engineering, The Lerner Research Institute, The Cleveland Clinic Foundation, Ohio 44195, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, The Lerner Research Institute, The Cleveland Clinic Foundation, Ohio 44195, USA","institution_ids":["https://openalex.org/I1316902750","https://openalex.org/I4405287411"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113632934","display_name":"Norman B. Ratliff","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1316902750","display_name":"Cleveland Clinic","ror":"https://ror.org/03xjacd83","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1316902750"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"N B Ratliff","raw_affiliation_strings":["Cleveland Clinic Foundation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cleveland Clinic Foundation","institution_ids":["https://openalex.org/I1316902750"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111464927","display_name":"D M Cosgrove","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"D M Cosgrove","raw_affiliation_strings":["Board of Governors"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Board of Governors","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088924413","display_name":"Brian P. Griffin","orcid":"https://orcid.org/0000-0001-6831-8611","observed_orcids":["https://orcid.org/0000-0001-6831-8611"]},"institutions":[{"id":"https://openalex.org/I1316902750","display_name":"Cleveland Clinic","ror":"https://ror.org/03xjacd83","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1316902750"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"B P Griffin","raw_affiliation_strings":["Cleveland Clinic Foundation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cleveland Clinic Foundation","institution_ids":["https://openalex.org/I1316902750"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033486502","display_name":"Ivan Vesel\u00fd","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1316902750","display_name":"Cleveland Clinic","ror":"https://ror.org/03xjacd83","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1316902750"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"I Vesely","raw_affiliation_strings":["Cleveland Clinic Foundation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cleveland Clinic Foundation","institution_ids":["https://openalex.org/I1316902750"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.4372,"has_fulltext":false,"cited_by_count":87,"citation_normalized_percentile":{"value":0.88864613,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"10","issue":"3","first_page":"320","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10172","display_name":"Cardiac Valve Diseases and Treatments","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10172","display_name":"Cardiac Valve Diseases and Treatments","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"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/T11366","display_name":"Elasticity and Material Modeling","score":0.0012000000569969416,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12598","display_name":"Cardiac Structural Anomalies and Repair","score":0.000699999975040555,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/myxomatous-mitral-valve","display_name":"myxomatous mitral valve","score":0.9309999942779541},{"id":"https://openalex.org/keywords/chordal-rupture","display_name":"chordal rupture","score":0.9789999723434448},{"id":"https://openalex.org/keywords/mitral-regurgitation","display_name":"mitral regurgitation","score":0.9549999833106995},{"id":"https://openalex.org/keywords/tensile-strength","display_name":"tensile strength","score":0.9190000295639038},{"id":"https://openalex.org/keywords/chordal-preservation","display_name":"chordal preservation","score":0.7879999876022339},{"id":"https://openalex.org/keywords/mitral-valve-repair","display_name":"mitral valve repair","score":0.6930000185966492}],"concepts":[{"id":"https://openalex.org/C2780870192","wikidata":"https://www.wikidata.org/wiki/Q1076385","display_name":"Chordae tendineae","level":3,"score":0.810478925704956},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7872828245162964},{"id":"https://openalex.org/C2993373945","wikidata":"https://www.wikidata.org/wiki/Q268292","display_name":"Mitral regurgitation","level":2,"score":0.6286923885345459},{"id":"https://openalex.org/C2777543888","wikidata":"https://www.wikidata.org/wiki/Q369939","display_name":"Mitral valve","level":2,"score":0.5695964097976685},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.5056376457214355},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.48589247465133667},{"id":"https://openalex.org/C2778022156","wikidata":"https://www.wikidata.org/wiki/Q576145","display_name":"Strain (injury)","level":2,"score":0.46339136362075806},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.4187224507331848}],"mesh":[{"descriptor_ui":"D001696","descriptor_name":"Biomechanical Phenomena","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D002815","descriptor_name":"Chordae Tendineae","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":true},{"descriptor_ui":"D002815","descriptor_name":"Chordae Tendineae","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008943","descriptor_name":"Mitral Valve","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":true},{"descriptor_ui":"D008943","descriptor_name":"Mitral Valve","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":true},{"descriptor_ui":"D008944","descriptor_name":"Mitral Valve Insufficiency","qualifier_ui":"Q000473","qualifier_name":"pathology","is_major_topic":true},{"descriptor_ui":"D008944","descriptor_name":"Mitral Valve Insufficiency","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":true},{"descriptor_ui":"D013718","descriptor_name":"Tensile Strength","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D066298","descriptor_name":"In Vitro Techniques","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"pmid:11380094","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/11380094","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":"The Journal of heart valve disease","raw_type":"Journal Article"},{"id":"mag:148807966","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/11380094","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":null,"is_accepted":false,"is_published":false,"raw_source_name":"PubMed","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.9391000270843506,"id":"https://metadata.un.org/sdg/3"}],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2121553184","https://openalex.org/W166127242","https://openalex.org/W2028999521","https://openalex.org/W2057853244","https://openalex.org/W4407926361","https://openalex.org/W4225940571","https://openalex.org/W2087843588","https://openalex.org/W2397714097","https://openalex.org/W1514792792","https://openalex.org/W2190165151"],"abstract_inverted_index":{"BACKGROUND":[0],"AND":[1],"AIM":[2],"OF":[3],"THE":[4],"STUDY:":[5],"Chordal":[6],"rupture":[7,234],"is":[8,235],"the":[9,33,79,209,236],"most":[10],"common":[11],"reason":[12],"for":[13,239],"severe":[14],"mitral":[15,42,55,94,213,243],"regurgitation":[16],"requiring":[17],"surgery.":[18],"The":[19],"features":[20],"that":[21,249],"predispose":[22],"myxomatous":[23,41,54],"chordae":[24,44,132,195,219,260],"to":[25,66],"rupture,":[26],"however,":[27],"have":[28],"not":[29],"been":[30],"studied.":[31],"Thus,":[32],"physical":[34],"and":[35,40,52,63,74,83,87,112,151,172,193,201],"mechanical":[36,210,266],"properties":[37,211],"of":[38,199,212,224,226,241],"normal":[39,51,129,190,227],"valve":[43,214],"were":[45,57,81,96],"measured.":[46,89],"METHODS:":[47],"Chordae":[48,91],"from":[49,92],"24":[50],"59":[53],"valves":[56,95],"cut":[58],"into":[59],"10":[60],"mm-long":[61],"segments":[62],"mechanically":[64],"tested":[65],"measure":[67],"extensibility,":[68],"modulus,":[69],"failure":[70,72,75,202],"stress,":[71],"strain,":[73],"load.":[76],"After":[77],"testing,":[78],"specimens":[80],"weighed":[82],"their":[84],"cross-sectional":[85],"area":[86],"volume":[88],"RESULTS:":[90],"myxoid":[93,194,218,242,259],"larger":[97],"(1.9":[98],"+/-":[99,104,115,120,138,143,159,164,176,181],"0.1":[100,105],"mm2":[101],"versus":[102,118,141,162,179],"0.8":[103],"mm2,":[106],"p":[107,123,146,167,184],"<":[108,124,147,168,185],"or":[109,125,148,169,186],"=":[110,126,149,170,187],"0.001)":[111,127,150,171,188],"heavier":[113],"(16.6":[114],"1.0":[116],"mg":[117],"6.5":[119],"0.4":[121],"mg,":[122],"than":[128,189],"chordae.":[130,191,215,228],"Myxoid":[131],"had":[133,196],"significantly":[134,154],"lower":[135,155],"moduli":[136],"(40.4":[137],"10.2":[139],"MPa":[140,161],"132":[142],"15":[144],"MPa,":[145,166],"failed":[152,220],"at":[153,221],"tensile":[156],"stress":[157],"(6.0":[158],"0.6":[160],"25.7":[163],"1.8":[165],"absolute":[173],"load":[174],"(728":[175],"50":[177],"g":[178],"1,450":[180],"135":[182],"g,":[183],"Normal":[192],"similar":[197],"measurements":[198],"extensibility":[200],"strain.":[203],"CONCLUSION:":[204],"Myxomatous":[205],"degeneration":[206],"severely":[207],"affects":[208],"Most":[216],"notably,":[217],"loads":[222],"one-half":[223],"those":[225],"This":[229],"may":[230],"explain":[231],"why":[232],"chordal":[233,250],"main":[237],"indication":[238],"repair":[240],"valves.":[244],"These":[245],"findings":[246],"also":[247],"suggest":[248],"preservation":[251],"should":[252],"be":[253],"carried":[254],"out":[255],"with":[256,264],"caution,":[257],"as":[258],"are":[261],"clearly":[262],"abnormal":[263],"compromised":[265],"strength.":[267]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":6},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":8},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":9}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
