{"id":"https://openalex.org/W2012601447","doi":"https://doi.org/10.1016/j.amjcard.2012.06.054","title":"Ambulatory Electrocardiogram-Based T-Wave Alternans in Patients With Vasospastic Angina During Asymptomatic Periods","display_name":"Ambulatory Electrocardiogram-Based T-Wave Alternans in Patients With Vasospastic Angina During Asymptomatic Periods","publication_year":2012,"publication_date":"2012-08-02","ids":{"openalex":"https://openalex.org/W2012601447","doi":"https://doi.org/10.1016/j.amjcard.2012.06.054","mag":"2012601447","pmid":"https://pubmed.ncbi.nlm.nih.gov/22858183"},"language":"en","primary_location":{"id":"doi:10.1016/j.amjcard.2012.06.054","doi":"https://doi.org/10.1016/j.amjcard.2012.06.054","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.amjcard.2012.06.054","pdf_url":null,"source":{"id":"https://openalex.org/S185186944","display_name":"The American Journal of Cardiology","issn_l":"0002-9149","issn":["0002-9149","1879-1913"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Journal of Cardiology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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":"https://openalex.org/A5069641755","display_name":"Hiroshi Shimada","orcid":"https://orcid.org/0000-0002-4049-6376","observed_orcids":["https://orcid.org/0000-0002-4049-6376"]},"institutions":[{"id":"https://openalex.org/I4210090395","display_name":"Yokohama Minami Kyosai Hospital","ror":"https://ror.org/00d0rvy84","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090395"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Hiroshi Shimada","raw_affiliation_strings":["Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan. shimada.hrs@gmail.com","Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan. shimada.hrs@gmail.com","institution_ids":["https://openalex.org/I4210090395"]},{"raw_affiliation_string":"Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210090395"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032775172","display_name":"Mitsuhiro Nishizaki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210090395","display_name":"Yokohama Minami Kyosai Hospital","ror":"https://ror.org/00d0rvy84","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090395"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mitsuhiro Nishizaki","raw_affiliation_strings":["Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210090395"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100868182","display_name":"Hiroyuki Fujii","orcid":"https://orcid.org/0009-0004-8946-6970","observed_orcids":["https://orcid.org/0009-0004-8946-6970"]},"institutions":[{"id":"https://openalex.org/I4210090395","display_name":"Yokohama Minami Kyosai Hospital","ror":"https://ror.org/00d0rvy84","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090395"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroyuki Fujii","raw_affiliation_strings":["Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210090395"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064420250","display_name":"Noriyoshi Yamawake","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210090395","display_name":"Yokohama Minami Kyosai Hospital","ror":"https://ror.org/00d0rvy84","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210090395"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Noriyoshi Yamawake","raw_affiliation_strings":["Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Yokohama Minami Kyosai Hospital, Yokohama, Japan","institution_ids":["https://openalex.org/I4210090395"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074996156","display_name":"Seiji Fukamizu","orcid":"https://orcid.org/0000-0002-0291-9702","observed_orcids":["https://orcid.org/0000-0002-0291-9702"]},"institutions":[{"id":"https://openalex.org/I4210121469","display_name":"Tokyo Metropolitan Hiroo Hospital","ror":"https://ror.org/02sxz8h41","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210121469"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Seiji Fukamizu","raw_affiliation_strings":["Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Tokyo, Japan","institution_ids":["https://openalex.org/I4210121469"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112142175","display_name":"Harumizu Sakurada","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210121469","display_name":"Tokyo Metropolitan Hiroo Hospital","ror":"https://ror.org/02sxz8h41","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210121469"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Harumizu Sakurada","raw_affiliation_strings":["Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, Tokyo, Japan","institution_ids":["https://openalex.org/I4210121469"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085280644","display_name":"Masayasu Hiraoka","orcid":"https://orcid.org/0000-0001-9533-6153","observed_orcids":["https://orcid.org/0000-0001-9533-6153"]},"institutions":[{"id":"https://openalex.org/I125602781","display_name":"Tokyo Medical and Dental University","ror":"https://ror.org/051k3eh31","country_code":"JP","type":"education","lineage":["https://openalex.org/I125602781","https://openalex.org/I4400009020"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masayasu Hiraoka","raw_affiliation_strings":["Department of Cardiology, Tokyo Medical and Dental University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Tokyo Medical and Dental University, Tokyo, Japan","institution_ids":["https://openalex.org/I125602781"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5069641755"],"corresponding_institution_ids":["https://openalex.org/I4210090395"],"apc_list":{"value":3380,"currency":"USD","value_usd":3380},"apc_paid":null,"fwci":1.651,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.85384581,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":97},"biblio":{"volume":"110","issue":"10","first_page":"1446","last_page":"1451"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.95169997215271,"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/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.95169997215271,"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/T11021","display_name":"ECG Monitoring and Analysis","score":0.014600000344216824,"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/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.011599999852478504,"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/t-wave-alternans","display_name":"T-wave alternans","score":0.9909999966621399},{"id":"https://openalex.org/keywords/vasospastic-angina","display_name":"vasospastic angina","score":0.996999979019165},{"id":"https://openalex.org/keywords/repolarization-abnormalities","display_name":"repolarization abnormalities","score":0.800000011920929},{"id":"https://openalex.org/keywords/ventricular-arrhythmia-risk","display_name":"ventricular arrhythmia risk","score":0.8309999704360962},{"id":"https://openalex.org/keywords/ventricular-tachycardia","display_name":"ventricular tachycardia","score":0.8790000081062317},{"id":"https://openalex.org/keywords/calcium-channel-blockers","display_name":"calcium channel blockers","score":0.9150000214576721},{"id":"https://openalex.org/keywords/asymptomatic-phase","display_name":"asymptomatic phase","score":0.7799999713897705},{"id":"https://openalex.org/keywords/holter-monitoring","display_name":"Holter monitoring","score":0.8579999804496765},{"id":"https://openalex.org/keywords/coronary-spasm","display_name":"coronary vasospasm","score":0.7670000195503235}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9165147542953491},{"id":"https://openalex.org/C2777325121","wikidata":"https://www.wikidata.org/wiki/Q3613169","display_name":"T wave alternans","level":3,"score":0.8246010541915894},{"id":"https://openalex.org/C2777910003","wikidata":"https://www.wikidata.org/wiki/Q1707292","display_name":"Asymptomatic","level":2,"score":0.8138874769210815},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.7563152313232422},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.7246988415718079},{"id":"https://openalex.org/C146403970","wikidata":"https://www.wikidata.org/wiki/Q205729","display_name":"Repolarization","level":3,"score":0.6037039160728455},{"id":"https://openalex.org/C35785553","wikidata":"https://www.wikidata.org/wiki/Q756720","display_name":"Ambulatory","level":2,"score":0.5695798397064209},{"id":"https://openalex.org/C2910466647","wikidata":"https://www.wikidata.org/wiki/Q1469637","display_name":"Vasospastic angina","level":4,"score":0.4830535054206848},{"id":"https://openalex.org/C61511704","wikidata":"https://www.wikidata.org/wiki/Q1671857","display_name":"Incidence (geometry)","level":2,"score":0.4329086244106293},{"id":"https://openalex.org/C2778425758","wikidata":"https://www.wikidata.org/wiki/Q180762","display_name":"Angina","level":3,"score":0.42869582772254944},{"id":"https://openalex.org/C2775935837","wikidata":"https://www.wikidata.org/wiki/Q202837","display_name":"Sudden cardiac death","level":2,"score":0.3290058970451355},{"id":"https://openalex.org/C500558357","wikidata":"https://www.wikidata.org/wiki/Q12152","display_name":"Myocardial infarction","level":2,"score":0.1186419129371643},{"id":"https://openalex.org/C185263204","wikidata":"https://www.wikidata.org/wiki/Q1154774","display_name":"Electrophysiology","level":2,"score":0.08661046624183655},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D003329","descriptor_name":"Coronary Vasospasm","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D003329","descriptor_name":"Coronary Vasospasm","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D003329","descriptor_name":"Coronary Vasospasm","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":true},{"descriptor_ui":"D003937","descriptor_name":"Diagnosis, Differential","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":"D006339","descriptor_name":"Heart Rate","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":"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":"D011379","descriptor_name":"Prognosis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012189","descriptor_name":"Retrospective Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015716","descriptor_name":"Electrocardiography, Ambulatory","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":true},{"descriptor_ui":"D017180","descriptor_name":"Tachycardia, Ventricular","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":true},{"descriptor_ui":"D017180","descriptor_name":"Tachycardia, Ventricular","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false},{"descriptor_ui":"D017180","descriptor_name":"Tachycardia, Ventricular","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1016/j.amjcard.2012.06.054","doi":"https://doi.org/10.1016/j.amjcard.2012.06.054","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.amjcard.2012.06.054","pdf_url":null,"source":{"id":"https://openalex.org/S185186944","display_name":"The American Journal of Cardiology","issn_l":"0002-9149","issn":["0002-9149","1879-1913"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Journal of Cardiology","raw_type":"journal-article"},{"id":"pmid:22858183","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/22858183","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 American journal of cardiology","raw_type":"Comparative Study"}],"best_oa_location":null,"sustainable_development_goals":[{"score":1.0,"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":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W121250741","https://openalex.org/W289248960","https://openalex.org/W1699439896","https://openalex.org/W1967871761","https://openalex.org/W1968099409","https://openalex.org/W1968579064","https://openalex.org/W1970879663","https://openalex.org/W1971758500","https://openalex.org/W1987676379","https://openalex.org/W1995313811","https://openalex.org/W2018582480","https://openalex.org/W2020083803","https://openalex.org/W2021174692","https://openalex.org/W2021539194","https://openalex.org/W2046605331","https://openalex.org/W2047689651","https://openalex.org/W2055308800","https://openalex.org/W2075544103","https://openalex.org/W2081231690","https://openalex.org/W2094642863","https://openalex.org/W2122181287","https://openalex.org/W2144095002","https://openalex.org/W2144727953","https://openalex.org/W2148274682","https://openalex.org/W2161580584","https://openalex.org/W2313927993"],"related_works":["https://openalex.org/W1995278486","https://openalex.org/W1659386713","https://openalex.org/W2030452047","https://openalex.org/W2334252292","https://openalex.org/W289248960","https://openalex.org/W4250315771","https://openalex.org/W7099557221","https://openalex.org/W1993871695","https://openalex.org/W2131807939","https://openalex.org/W3205756193"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":2}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}