{"id":"https://openalex.org/W1986348956","doi":"https://doi.org/10.1136/hrt.40.6.602","title":"Long-term haemodynamic evaluation of aortic pericardial xenograft.","display_name":"Long-term haemodynamic evaluation of aortic pericardial xenograft.","publication_year":1978,"publication_date":"1978-06-01","ids":{"openalex":"https://openalex.org/W1986348956","doi":"https://doi.org/10.1136/hrt.40.6.602","mag":"1986348956","pmid":"https://pubmed.ncbi.nlm.nih.gov/656233","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/483455"},"language":"en","primary_location":{"id":"doi:10.1136/hrt.40.6.602","doi":"https://doi.org/10.1136/hrt.40.6.602","is_oa":true,"landing_page_url":"https://doi.org/10.1136/hrt.40.6.602","pdf_url":"https://heart.bmj.com/content/heartjnl/40/6/602.full.pdf","source":{"id":"https://openalex.org/S191565391","display_name":"Heart","issn_l":"1355-6037","issn":["1355-6037","1468-201X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Heart","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://heart.bmj.com/content/heartjnl/40/6/602.full.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5111831791","display_name":"Anand P. Tandon","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"A P Tandon","raw_affiliation_strings":["From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds","institution_ids":["https://openalex.org/I1295121038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074940124","display_name":"Donald R. Smith","orcid":"https://orcid.org/0000-0002-4919-1042","observed_orcids":["https://orcid.org/0000-0002-4919-1042"]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"D R Smith","raw_affiliation_strings":["From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds","institution_ids":["https://openalex.org/I1295121038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111641002","display_name":"W Whitaker","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"W Whitaker","raw_affiliation_strings":["From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds","institution_ids":["https://openalex.org/I1295121038"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111895023","display_name":"M. I. Ionescu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1295121038","display_name":"Leeds General Infirmary","ror":"https://ror.org/04hrjej96","country_code":"GB","type":"healthcare","lineage":["https://openalex.org/I1295121038","https://openalex.org/I2799390153"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"M I Ionescu","raw_affiliation_strings":["From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"From the Departments of Cardiology and Cardiothoracic Surgery, The General Infirmary, Leeds","institution_ids":["https://openalex.org/I1295121038"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1295121038"],"apc_list":null,"apc_paid":null,"fwci":6.5063,"has_fulltext":true,"cited_by_count":32,"citation_normalized_percentile":{"value":0.96487016,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":93},"biblio":{"volume":"40","issue":"6","first_page":"602","last_page":"607"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10172","display_name":"Cardiac Valve Diseases and Treatments","score":0.9911999702453613,"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":0.9911999702453613,"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/T10618","display_name":"Aortic Disease and Treatment Approaches","score":0.008299999870359898,"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/T10300","display_name":"Congenital Heart Disease Studies","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/aortic-valve-replacement","display_name":"aortic valve replacement","score":0.925000011920929},{"id":"https://openalex.org/keywords/hemodynamics","display_name":"hemodynamics","score":0.7129999995231628},{"id":"https://openalex.org/keywords/transvalvular-pressure-gradient","display_name":"transvalvular gradient","score":0.7879999876022339},{"id":"https://openalex.org/keywords/cardiac-output","display_name":"cardiac output","score":0.718999981880188},{"id":"https://openalex.org/keywords/left-ventricular-end-diastolic-pressure","display_name":"left ventricular end-diastolic pressure","score":0.8709999918937683},{"id":"https://openalex.org/keywords/pulmonary-capillary-wedge-pressure","display_name":"pulmonary capillary wedge pressure","score":0.847000002861023},{"id":"https://openalex.org/keywords/graft-size","display_name":"graft size","score":0.5649999976158142},{"id":"https://openalex.org/keywords/paravalvular-leak","display_name":"paravalvular leak","score":0.9539999961853027},{"id":"https://openalex.org/keywords/long-term-outcomes","display_name":"long-term outcomes","score":0.6869999766349792}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9494137763977051},{"id":"https://openalex.org/C178853913","wikidata":"https://www.wikidata.org/wiki/Q1642137","display_name":"Hemodynamics","level":2,"score":0.7133237719535828},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.6639328598976135},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.6183603405952454},{"id":"https://openalex.org/C176752191","wikidata":"https://www.wikidata.org/wiki/Q1474138","display_name":"Cardiac skeleton","level":4,"score":0.5064185857772827},{"id":"https://openalex.org/C2777501473","wikidata":"https://www.wikidata.org/wiki/Q1796666","display_name":"Body surface area","level":2,"score":0.46533292531967163},{"id":"https://openalex.org/C2778875491","wikidata":"https://www.wikidata.org/wiki/Q193302","display_name":"Pericardium","level":2,"score":0.46177706122398376},{"id":"https://openalex.org/C2780714102","wikidata":"https://www.wikidata.org/wiki/Q616071","display_name":"Aortic valve","level":2,"score":0.46096229553222656},{"id":"https://openalex.org/C2777385415","wikidata":"https://www.wikidata.org/wiki/Q1615191","display_name":"Cardiac catheterization","level":2,"score":0.4431191086769104},{"id":"https://openalex.org/C146556889","wikidata":"https://www.wikidata.org/wiki/Q1414127","display_name":"Pulmonary wedge pressure","level":3,"score":0.43490350246429443},{"id":"https://openalex.org/C139940330","wikidata":"https://www.wikidata.org/wiki/Q596579","display_name":"Cardiac output","level":3,"score":0.43452784419059753},{"id":"https://openalex.org/C57900726","wikidata":"https://www.wikidata.org/wiki/Q492905","display_name":"Diastole","level":3,"score":0.4202178120613098},{"id":"https://openalex.org/C2779980429","wikidata":"https://www.wikidata.org/wiki/Q101004","display_name":"Aorta","level":2,"score":0.33442938327789307},{"id":"https://openalex.org/C2993369777","wikidata":"https://www.wikidata.org/wiki/Q2349469","display_name":"Aortic root","level":3,"score":0.29413992166519165},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.2230992615222931}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000368","descriptor_name":"Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001021","descriptor_name":"Aortic Valve","qualifier_ui":"Q000601","qualifier_name":"surgery","is_major_topic":true},{"descriptor_ui":"D001794","descriptor_name":"Blood Pressure","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002302","descriptor_name":"Cardiac Output","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005500","descriptor_name":"Follow-Up Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006350","descriptor_name":"Heart Valve Prosthesis","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006439","descriptor_name":"Hemodynamics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010496","descriptor_name":"Pericardium","qualifier_ui":"Q000637","qualifier_name":"transplantation","is_major_topic":true},{"descriptor_ui":"D014183","descriptor_name":"Transplantation, Heterologous","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":3,"locations":[{"id":"doi:10.1136/hrt.40.6.602","doi":"https://doi.org/10.1136/hrt.40.6.602","is_oa":true,"landing_page_url":"https://doi.org/10.1136/hrt.40.6.602","pdf_url":"https://heart.bmj.com/content/heartjnl/40/6/602.full.pdf","source":{"id":"https://openalex.org/S191565391","display_name":"Heart","issn_l":"1355-6037","issn":["1355-6037","1468-201X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Heart","raw_type":"journal-article"},{"id":"pmh:oai:pubmedcentral.nih.gov:483455","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/483455","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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":"Br Heart J","raw_type":"Text"},{"id":"pmid:656233","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/656233","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":"British heart journal","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.1136/hrt.40.6.602","doi":"https://doi.org/10.1136/hrt.40.6.602","is_oa":true,"landing_page_url":"https://doi.org/10.1136/hrt.40.6.602","pdf_url":"https://heart.bmj.com/content/heartjnl/40/6/602.full.pdf","source":{"id":"https://openalex.org/S191565391","display_name":"Heart","issn_l":"1355-6037","issn":["1355-6037","1468-201X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-2","ki-jl-2","medline","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319945","host_organization_name":"BMJ","host_organization_lineage":["https://openalex.org/P4310319945"],"host_organization_lineage_names":["BMJ"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Heart","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.98580002784729,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1986348956.pdf","grobid_xml":"https://content.openalex.org/works/W1986348956.grobid-xml"},"referenced_works_count":12,"referenced_works":["https://openalex.org/W1965980002","https://openalex.org/W2006160863","https://openalex.org/W2008450497","https://openalex.org/W2064628665","https://openalex.org/W2080369750","https://openalex.org/W2090725307","https://openalex.org/W2111030208","https://openalex.org/W2127346359","https://openalex.org/W2148120444","https://openalex.org/W2259262623","https://openalex.org/W2414865691","https://openalex.org/W2416573297"],"related_works":["https://openalex.org/W1965980002","https://openalex.org/W28468785","https://openalex.org/W2079345407","https://openalex.org/W2165178697","https://openalex.org/W168772811","https://openalex.org/W2401803638","https://openalex.org/W2091456682","https://openalex.org/W2076707942","https://openalex.org/W2056995374","https://openalex.org/W2066147734"],"abstract_inverted_index":{"Haemodynamic":[0],"studies":[1],"were":[2],"performed":[3],"in":[4,59,71,113,128,168,182,198],"30":[5,39,170],"patients":[6,114,199],"at":[7,80,106,153],"a":[8,54,68,173],"mean":[9,99],"interval":[10],"of":[11,47],"43.4":[12],"(range":[13],"27":[14,32,135],"to":[15,150,157,176],"59)":[16],"months":[17],"after":[18],"aortic":[19,201],"valve":[20,26],"replacements":[21],"with":[22,115,124,200],"pericardial":[23,202],"xenografts.":[24,203],"Five":[25],"sizes--19,":[27],"21,":[28],"23,":[29],"25,":[30],"and":[31,50,75,82,89,108,122,155,193],"mm":[33,136],"annulus":[34],"diameter--were":[35],"used.":[36],"Of":[37],"these":[38],"patients,":[40,171],"16":[41],"had":[42],"preoperative":[43],"haemodynamic":[44],"investigations.":[45],"Comparison":[46],"the":[48,72,95,98,116,134],"pre-":[49],"postoperative":[51,96],"data":[52],"showed":[53,165],"marginal":[55],"but":[56,172],"significant":[57,69,190],"increase":[58,127],"cardiac":[60],"output":[61],"(P":[62,85],"less":[63,86,91],"than":[64,87,92],"0.05).":[65],"There":[66],"was":[67,103,139,180],"reduction":[70],"pulmonary":[73],"wedge":[74],"left":[76],"ventricular":[77],"end-diastolic":[78],"pressures":[79],"rest":[81,107,154],"on":[83,111],"exercise":[84,112],"0.05":[88],"P":[90],"0.01).":[93],"At":[94],"study":[97,187],"peak":[100],"systolic":[101],"gradient":[102],"8.3":[104],"mmHg":[105,110],"12.3":[109],"smallest":[117],"xenograft":[118,144],"inserted":[119],"(19":[120],"mm)":[121],"decreased":[123],"each":[125],"corresponding":[126],"graft":[129,137],"size,":[130],"so":[131],"that":[132],"across":[133],"it":[138],"hardly":[140],"measurable.":[141],"The":[142],"calculated":[143],"surface":[145],"area":[146],"ranged":[147],"from":[148],"1.1":[149],"2.1":[151],"cm2":[152,159],"1.3":[156],"2.4":[158],"during":[160],"exercise.":[161],"Aortic":[162],"root":[163],"angiography":[164],"competent":[166],"valves":[167],"all":[169],"grade":[174],"1":[175],"2":[177],"perivalvular":[178],"leak":[179],"shown":[181],"8":[183],"patients.":[184],"This":[185],"long-term":[186],"has":[188],"indicated":[189],"circulatory":[191],"improvement":[192],"very":[194],"small":[195],"transvalvular":[196],"gradients":[197]},"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
