{"id":"https://openalex.org/W2256809781","doi":"https://doi.org/10.1161/circoutcomes.7.suppl_1.202","title":"Abstract 202: Association Between Implantable Ventricular Assist Device Receipt at Medicare Destination Therapy Centers and Mortality: An Instrumental Variable Analysis","display_name":"Abstract 202: Association Between Implantable Ventricular Assist Device Receipt at Medicare Destination Therapy Centers and Mortality: An Instrumental Variable Analysis","publication_year":2014,"publication_date":"2014-07-01","ids":{"openalex":"https://openalex.org/W2256809781","doi":"https://doi.org/10.1161/circoutcomes.7.suppl_1.202","mag":"2256809781"},"language":"en","primary_location":{"id":"doi:10.1161/circoutcomes.7.suppl_1.202","doi":"https://doi.org/10.1161/circoutcomes.7.suppl_1.202","is_oa":false,"landing_page_url":"https://doi.org/10.1161/circoutcomes.7.suppl_1.202","pdf_url":null,"source":{"id":"https://openalex.org/S52278559","display_name":"Circulation Cardiovascular Quality and Outcomes","issn_l":"1941-7705","issn":["1941-7705","1941-7713"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1"],"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":"Circulation: Cardiovascular Quality and Outcomes","raw_type":"journal-article"},"volume":null,"type":"conference-abstract","indexed_in":["crossref"],"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/A5070960029","display_name":"Jacqueline Baras Shreibati","orcid":"https://orcid.org/0000-0002-1410-9432","observed_orcids":["https://orcid.org/0000-0002-1410-9432"]},"institutions":[{"id":"https://openalex.org/I97018004","display_name":"Stanford University","ror":"https://ror.org/00f54p054","country_code":"US","type":"education","lineage":["https://openalex.org/I97018004"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jacqueline Baras Shreibati","raw_affiliation_strings":["Stanford Univ, Stanford, CA","Jacqueline Baras Shreibati"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Stanford Univ, Stanford, CA","institution_ids":["https://openalex.org/I97018004"]},{"raw_affiliation_string":"Jacqueline Baras Shreibati","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048757486","display_name":"Laurence C. Baker","orcid":"https://orcid.org/0000-0001-5032-794X","observed_orcids":["https://orcid.org/0000-0001-5032-794X"]},"institutions":[{"id":"https://openalex.org/I97018004","display_name":"Stanford University","ror":"https://ror.org/00f54p054","country_code":"US","type":"education","lineage":["https://openalex.org/I97018004"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Laurence C Baker","raw_affiliation_strings":["Stanford Univ, Stanford, CA","Laurence C Baker"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Stanford Univ, Stanford, CA","institution_ids":["https://openalex.org/I97018004"]},{"raw_affiliation_string":"Laurence C Baker","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042027478","display_name":"Dipanjan Banerjee","orcid":"https://orcid.org/0000-0003-3331-958X","observed_orcids":["https://orcid.org/0000-0003-3331-958X"]},"institutions":[{"id":"https://openalex.org/I97018004","display_name":"Stanford University","ror":"https://ror.org/00f54p054","country_code":"US","type":"education","lineage":["https://openalex.org/I97018004"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dipanjan Banerjee","raw_affiliation_strings":["Stanford Univ, Stanford, CA","Dipanjan Banerjee"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Stanford Univ, Stanford, CA","institution_ids":["https://openalex.org/I97018004"]},{"raw_affiliation_string":"Dipanjan Banerjee","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010870828","display_name":"Mark Andrew Hlatky","orcid":"https://orcid.org/0000-0003-4686-9441","observed_orcids":["https://orcid.org/0000-0003-4686-9441"]},"institutions":[{"id":"https://openalex.org/I97018004","display_name":"Stanford University","ror":"https://ror.org/00f54p054","country_code":"US","type":"education","lineage":["https://openalex.org/I97018004"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mark A Hlatky","raw_affiliation_strings":["Stanford Univ, Stanford, CA","Mark A Hlatky"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Stanford Univ, Stanford, CA","institution_ids":["https://openalex.org/I97018004"]},{"raw_affiliation_string":"Mark A Hlatky","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I97018004"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"7","issue":"suppl_1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10675","display_name":"Mechanical Circulatory Support Devices","score":0.9994999766349792,"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"}},"topics":[{"id":"https://openalex.org/T10675","display_name":"Mechanical Circulatory Support Devices","score":0.9994999766349792,"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/T11189","display_name":"Transplantation: Methods and Outcomes","score":9.999999747378752e-05,"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"}},{"id":"https://openalex.org/T10198","display_name":"Heart Failure Treatment and Management","score":9.999999747378752e-05,"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/implantable-ventricular-assist-device","display_name":"implantable ventricular assist device","score":0.9129999876022339},{"id":"https://openalex.org/keywords/destination-therapy","display_name":"destination therapy","score":0.8920000195503235},{"id":"https://openalex.org/keywords/advanced-heart-failure","display_name":"advanced heart failure","score":0.9599999785423279},{"id":"https://openalex.org/keywords/one-year-mortality","display_name":"one-year mortality","score":0.7620000243186951},{"id":"https://openalex.org/keywords/elderly-medicare-beneficiaries","display_name":"elderly Medicare beneficiaries","score":0.7850000262260437},{"id":"https://openalex.org/keywords/conservative-medical-management","display_name":"conservative medical management","score":0.6359999775886536},{"id":"https://openalex.org/keywords/heart-transplantation","display_name":"heart transplantation","score":0.7459999918937683},{"id":"https://openalex.org/keywords/hospital-accreditation","display_name":"hospital accreditation","score":0.5550000071525574},{"id":"https://openalex.org/keywords/selection-bias","display_name":"selection bias","score":0.6129999756813049},{"id":"https://openalex.org/keywords/comparative-effectiveness","display_name":"comparative effectiveness","score":0.8299999833106995},{"id":"https://openalex.org/keywords/instrumental-variables","display_name":"instrumental variables","score":0.41200000047683716}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8460313081741333},{"id":"https://openalex.org/C2779326848","wikidata":"https://www.wikidata.org/wiki/Q5265191","display_name":"Destination therapy","level":4,"score":0.584869384765625},{"id":"https://openalex.org/C2778979077","wikidata":"https://www.wikidata.org/wiki/Q330190","display_name":"Receipt","level":2,"score":0.5331411361694336},{"id":"https://openalex.org/C23131810","wikidata":"https://www.wikidata.org/wiki/Q818574","display_name":"Observational study","level":2,"score":0.5214763879776001},{"id":"https://openalex.org/C162144332","wikidata":"https://www.wikidata.org/wiki/Q1665305","display_name":"Instrumental variable","level":2,"score":0.5165718793869019},{"id":"https://openalex.org/C194828623","wikidata":"https://www.wikidata.org/wiki/Q2861470","display_name":"Emergency medicine","level":1,"score":0.47153240442276},{"id":"https://openalex.org/C2778198053","wikidata":"https://www.wikidata.org/wiki/Q181754","display_name":"Heart failure","level":2,"score":0.469772070646286},{"id":"https://openalex.org/C2778774980","wikidata":"https://www.wikidata.org/wiki/Q2897721","display_name":"Ventricular assist device","level":3,"score":0.43960025906562805},{"id":"https://openalex.org/C2911091166","wikidata":"https://www.wikidata.org/wiki/Q106419912","display_name":"Transplantation","level":2,"score":0.4197208881378174},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.31095486879348755},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1161/circoutcomes.7.suppl_1.202","doi":"https://doi.org/10.1161/circoutcomes.7.suppl_1.202","is_oa":false,"landing_page_url":"https://doi.org/10.1161/circoutcomes.7.suppl_1.202","pdf_url":null,"source":{"id":"https://openalex.org/S52278559","display_name":"Circulation Cardiovascular Quality and Outcomes","issn_l":"1941-7705","issn":["1941-7705","1941-7713"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1"],"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":"Circulation: Cardiovascular Quality and Outcomes","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","score":1.0,"id":"https://metadata.un.org/sdg/3"}],"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/W1993975919","https://openalex.org/W1503061522","https://openalex.org/W7134950303","https://openalex.org/W2791025072","https://openalex.org/W4283027915","https://openalex.org/W137277510","https://openalex.org/W2901535687","https://openalex.org/W4214924769","https://openalex.org/W2174418367","https://openalex.org/W2855641831"],"abstract_inverted_index":{"Background:":[0],"Comparing":[1],"the":[2,53,146,155,164,167,278],"effectiveness":[3,314],"of":[4,20,34,80,86,148,157,166,184,299,316],"contemporary":[5,43],"implantable":[6,44,88],"ventricular":[7],"assist":[8],"devices":[9],"(VAD)":[10],"with":[11,38,47,243,267,282,290,294],"medical":[12,103,214,291],"therapy":[13,104,131,188,215],"using":[14,105],"observational":[15],"data":[16],"is":[17],"challenging":[18],"because":[19],"treatment":[21],"selection":[22],"bias.":[23],"Objective:":[24],"To":[25],"use":[26,147],"instrumental":[27,110,236,268,308],"variable":[28,111,143,237,269,309],"analysis":[29,112],"to":[30,77,123,200,230,257],"examine":[31],"1-year":[32,98,204,249,287],"mortality":[33,99,205,250,288],"elderly":[35,274],"Medicare":[36,74,122,275],"beneficiaries":[37,75,173],"advanced":[39],"heart":[40,57,158,201],"failure":[41,58],"receiving":[42],"VADs":[45,125],"compared":[46,289],"conservative":[48],"management.":[49],"Methods:":[50],"We":[51,93],"identified":[52],"first":[54],"hospitalization":[55],"for":[56,59,100,138,209,213],"at":[60,154,163,180],"least":[61,108],"14":[62],"days":[63],"between":[64,190],"January":[65],"1,":[66],"2009,":[67],"and":[68,192],"December":[69],"31,":[70],"2011,":[71],"among":[72,273],"all":[73],"65":[76],"80":[78],"years":[79],"age,":[81],"as":[82,84,126,135,306],"well":[83],"receipt":[85,240],"an":[87,136,307],"VAD":[89,101,139,149,178,195,210,239,271,317],"during":[90],"that":[91,116],"hospitalization.":[92],"estimated":[94],"risk-adjusted":[95],"differences":[96],"in":[97,248,286],"versus":[102,211],"a":[106,117,244,283,300],"2-stage":[107],"squares":[109],"method.":[113],"The":[114,221],"date":[115,156,305],"hospital":[118],"was":[119,133,225,241,265,280],"certified":[120],"by":[121],"implant":[124],"permanent":[127],"circulatory":[128],"support":[129],"(\u201cdestination":[130],"facility\u201d)":[132],"used":[134],"instrument":[137],"receipt,":[140],"since":[141],"this":[142],"directly":[144],"influences":[145],"therapy.":[150,318],"Patients":[151],"were":[152,207],"censored":[153],"transplantation":[159],"or":[160,162],"death,":[161],"end":[165],"study":[168],"period.":[169],"Results:":[170],"Of":[171],"33,483":[172],"hospitalized,":[174],"827":[175],"(2.5%)":[176],"underwent":[177],"implantation":[179,272],"104":[181],"hospitals,":[182],"30":[183],"which":[185],"became":[186],"destination":[187],"centers":[189],"2009":[191],"2011.":[193],"Among":[194],"recipients,":[196],"71":[197],"(8.5%)":[198],"proceeded":[199],"transplantation.":[202],"Unadjusted":[203],"rates":[206],"26.5%":[208],"51.9%":[212],"(risk":[216,251],"difference,-25.4%;":[217],"P":[218,232,259],"<":[219,233,260],"0.001).":[220,234,261],"adjusted":[222],"risk":[223],"difference":[224],"-23.6%":[226],"(95%":[227],"CI":[228,255],"-27.0%":[229],"-20.1%,":[231],"Using":[235],"analysis,":[238,270],"associated":[242,281],"significantly":[245],"larger":[246],"decrease":[247],"difference,":[252],"-40.6%,":[253],"95%":[254],"-52.2%":[256],"-29.0%;":[258],"Conclusions:":[262],"When":[263],"confounding":[264],"controlled":[266],"beneficiaries,":[276],"on":[277],"margin,":[279],"41%":[284],"reduction":[285],"therapy,":[292],"consistent":[293],"randomized":[295],"trial":[296],"results.":[297],"Use":[298],"hospital\u2019s":[301],"\u201cdestination":[302],"therapy\u201d":[303],"certification":[304],"may":[310],"facilitate":[311],"future":[312],"comparative":[313],"analyses":[315]},"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
