{"id":"https://openalex.org/W7201859237","doi":"https://doi.org/10.2169/internalmedicine.7346-26","title":"Domestically Acquired Leptospirosis Complicated by Myocardial Involvement: A Case Report from Japan","display_name":"Domestically Acquired Leptospirosis Complicated by Myocardial Involvement: A Case Report from Japan","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7201859237","doi":"https://doi.org/10.2169/internalmedicine.7346-26","pmid":"https://pubmed.ncbi.nlm.nih.gov/42572319"},"language":"en","primary_location":{"id":"doi:10.2169/internalmedicine.7346-26","doi":"https://doi.org/10.2169/internalmedicine.7346-26","is_oa":true,"landing_page_url":"https://doi.org/10.2169/internalmedicine.7346-26","pdf_url":"https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7346-26/_pdf","source":{"id":"https://openalex.org/S154471048","display_name":"Internal Medicine","issn_l":"0918-2918","issn":["0918-2918","1349-7235"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","medline","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310313351","host_organization_name":"The Japanese Society of Internal Medicine","host_organization_lineage":["https://openalex.org/P4310313351"],"host_organization_lineage_names":["The Japanese Society of Internal Medicine"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Internal Medicine","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7346-26/_pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5146048069","display_name":"Hiroaki Matsuda","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210149146","display_name":"Shimane University Hospital","ror":"https://ror.org/03nvpm562","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210149146"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroaki Matsuda","raw_affiliation_strings":["Postgraduate Clinical Training Center, Shimane University Hospital, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Postgraduate Clinical Training Center, Shimane University Hospital, Japan","institution_ids":["https://openalex.org/I4210149146"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101563494","display_name":"Takahiro Sakamoto","orcid":"https://orcid.org/0000-0001-8846-1239","observed_orcids":["https://orcid.org/0000-0001-8846-1239"]},"institutions":[{"id":"https://openalex.org/I169016828","display_name":"Shimane University","ror":"https://ror.org/01jaaym28","country_code":"JP","type":"education","lineage":["https://openalex.org/I169016828"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takahiro Sakamoto","raw_affiliation_strings":["Department of internal medicine, Izumo City General Medical Center, Japan","Division of Cardiology, Shimane University Faculty of Medicine, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of internal medicine, Izumo City General Medical Center, Japan","institution_ids":[]},{"raw_affiliation_string":"Division of Cardiology, Shimane University Faculty of Medicine, Japan","institution_ids":["https://openalex.org/I169016828"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057680129","display_name":"Yuki Yoshioka","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yuki Yoshioka","raw_affiliation_strings":["Department of internal medicine, Izumo City General Medical Center, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of internal medicine, Izumo City General Medical Center, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087346764","display_name":"\u91d1\u4e95\u514b\u6a39","orcid":"https://orcid.org/0009-0000-2057-2514","observed_orcids":["https://orcid.org/0009-0000-2057-2514"]},"institutions":[{"id":"https://openalex.org/I4210129087","display_name":"Shimane Prefectural Central Hospital","ror":"https://ror.org/03rq2h425","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210129087"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Katsuki Kanai","raw_affiliation_strings":["Emergency and critical medicine, Shimane Prefectural Central Hospital, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Emergency and critical medicine, Shimane Prefectural Central Hospital, Japan","institution_ids":["https://openalex.org/I4210129087"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Keiichi Yamasaki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210129087","display_name":"Shimane Prefectural Central Hospital","ror":"https://ror.org/03rq2h425","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210129087"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Keiichi Yamasaki","raw_affiliation_strings":["Emergency and critical medicine, Shimane Prefectural Central Hospital, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Emergency and critical medicine, Shimane Prefectural Central Hospital, Japan","institution_ids":["https://openalex.org/I4210129087"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060096827","display_name":"Hiroyuki Fukuhara","orcid":"https://orcid.org/0009-0004-2440-1586","observed_orcids":["https://orcid.org/0009-0004-2440-1586"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hiroyuki Fukuhara","raw_affiliation_strings":["Department of internal medicine, Izumo City General Medical Center, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of internal medicine, Izumo City General Medical Center, Japan","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035282746","display_name":"Kazuaki Tanabe","orcid":"https://orcid.org/0000-0002-8910-8389","observed_orcids":["https://orcid.org/0000-0002-8910-8389"]},"institutions":[{"id":"https://openalex.org/I169016828","display_name":"Shimane University","ror":"https://ror.org/01jaaym28","country_code":"JP","type":"education","lineage":["https://openalex.org/I169016828"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kazuaki Tanabe","raw_affiliation_strings":["Division of Cardiology, Shimane University Faculty of Medicine, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Cardiology, Shimane University Faculty of Medicine, Japan","institution_ids":["https://openalex.org/I169016828"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101722454","display_name":"Shuichi Sato","orcid":"https://orcid.org/0000-0003-2879-4909","observed_orcids":["https://orcid.org/0000-0003-2879-4909"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Shuichi Sato","raw_affiliation_strings":["Department of internal medicine, Izumo City General Medical Center, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of internal medicine, Izumo City General Medical Center, Japan","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.55494946,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12223","display_name":"Leptospirosis research and findings","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"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/T12223","display_name":"Leptospirosis research and findings","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"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/T11899","display_name":"Brucella: diagnosis, epidemiology, treatment","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"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/T10823","display_name":"Research on Leishmaniasis Studies","score":9.999999747378752e-05,"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/leptospirosis","display_name":"leptospirosis","score":0.9919999837875366},{"id":"https://openalex.org/keywords/myocardial-involvement","display_name":"myocardial involvement","score":0.9300000071525574},{"id":"https://openalex.org/keywords/acute-myocarditis","display_name":"acute myocarditis","score":0.6629999876022339},{"id":"https://openalex.org/keywords/cardiac-dysfunction","display_name":"cardiac dysfunction","score":0.5619999766349792},{"id":"https://openalex.org/keywords/inflammatory-markers","display_name":"inflammatory markers","score":0.6069999933242798},{"id":"https://openalex.org/keywords/antimicrobial-therapy","display_name":"antimicrobial therapy","score":0.9020000100135803},{"id":"https://openalex.org/keywords/elderly-patients","display_name":"elderly patients","score":0.6700000166893005}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9549999833106995},{"id":"https://openalex.org/C2778033228","wikidata":"https://www.wikidata.org/wiki/Q155098","display_name":"Leptospirosis","level":2,"score":0.6735000014305115},{"id":"https://openalex.org/C177713679","wikidata":"https://www.wikidata.org/wiki/Q679690","display_name":"Intensive care medicine","level":1,"score":0.4684999883174896},{"id":"https://openalex.org/C545542383","wikidata":"https://www.wikidata.org/wiki/Q2751242","display_name":"Medical emergency","level":1,"score":0.4350999891757965},{"id":"https://openalex.org/C194828623","wikidata":"https://www.wikidata.org/wiki/Q2861470","display_name":"Emergency medicine","level":1,"score":0.383899986743927},{"id":"https://openalex.org/C2779473830","wikidata":"https://www.wikidata.org/wiki/Q1540899","display_name":"MEDLINE","level":2,"score":0.3828999996185303},{"id":"https://openalex.org/C2780875844","wikidata":"https://www.wikidata.org/wiki/Q186235","display_name":"Myocarditis","level":2,"score":0.27320000529289246},{"id":"https://openalex.org/C107130276","wikidata":"https://www.wikidata.org/wiki/Q133805","display_name":"Epidemiology","level":2,"score":0.2401999980211258},{"id":"https://openalex.org/C159047783","wikidata":"https://www.wikidata.org/wiki/Q7215","display_name":"Virology","level":1,"score":0.23109999299049377},{"id":"https://openalex.org/C138816342","wikidata":"https://www.wikidata.org/wiki/Q189603","display_name":"Public health","level":2,"score":0.23029999434947968}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.2169/internalmedicine.7346-26","doi":"https://doi.org/10.2169/internalmedicine.7346-26","is_oa":true,"landing_page_url":"https://doi.org/10.2169/internalmedicine.7346-26","pdf_url":"https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7346-26/_pdf","source":{"id":"https://openalex.org/S154471048","display_name":"Internal Medicine","issn_l":"0918-2918","issn":["0918-2918","1349-7235"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","medline","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310313351","host_organization_name":"The Japanese Society of Internal Medicine","host_organization_lineage":["https://openalex.org/P4310313351"],"host_organization_lineage_names":["The Japanese Society of Internal Medicine"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Internal Medicine","raw_type":"journal-article"},{"id":"pmid:42572319","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/42572319","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":"Internal medicine (Tokyo, Japan)","raw_type":"Journal Article"}],"best_oa_location":{"id":"doi:10.2169/internalmedicine.7346-26","doi":"https://doi.org/10.2169/internalmedicine.7346-26","is_oa":true,"landing_page_url":"https://doi.org/10.2169/internalmedicine.7346-26","pdf_url":"https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7346-26/_pdf","source":{"id":"https://openalex.org/S154471048","display_name":"Internal Medicine","issn_l":"0918-2918","issn":["0918-2918","1349-7235"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","doyens","jufo-1","medline","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310313351","host_organization_name":"The Japanese Society of Internal Medicine","host_organization_lineage":["https://openalex.org/P4310313351"],"host_organization_lineage_names":["The Japanese Society of Internal Medicine"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Internal Medicine","raw_type":"journal-article"},"sustainable_development_goals":[{"score":1.0,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Case Report","id":"https://openalex.org/study-designs/case-report"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7201859237.pdf","grobid_xml":"https://content.openalex.org/works/W7201859237.grobid-xml"},"referenced_works_count":13,"referenced_works":["https://openalex.org/W1990838658","https://openalex.org/W1996955134","https://openalex.org/W2151958459","https://openalex.org/W2209112852","https://openalex.org/W2803674135","https://openalex.org/W2935951045","https://openalex.org/W3103940138","https://openalex.org/W4211105424","https://openalex.org/W4313488475","https://openalex.org/W4313893845","https://openalex.org/W4362523744","https://openalex.org/W4379769274","https://openalex.org/W4406924991"],"related_works":["https://openalex.org/W7171487642","https://openalex.org/W2415468510","https://openalex.org/W1996955134","https://openalex.org/W4384568690","https://openalex.org/W4390664646","https://openalex.org/W4403255577","https://openalex.org/W4400959564","https://openalex.org/W2935951045","https://openalex.org/W2419421756","https://openalex.org/W1979480084"],"abstract_inverted_index":{"Leptospirosis":[0],"can":[1],"cause":[2],"myocardial":[3],"involvement":[4,66],"that":[5],"mimics":[6],"viral":[7],"myocarditis.":[8],"We":[9],"herein":[10],"report":[11],"the":[12,43,61,79,83],"case":[13,77],"of":[14,21,81],"a":[15,19,48],"77-year-old":[16],"man":[17],"without":[18],"history":[20],"overseas":[22],"travel":[23],"who":[24],"presented":[25],"with":[26,68],"flu-like":[27],"symptoms,":[28],"elevated":[29],"inflammatory":[30],"marker":[31],"levels,":[32],"and":[33,60],"an":[34],"impaired":[35],"cardiac":[36,84],"function.":[37],"As":[38],"acute":[39],"myocarditis":[40],"was":[41,45,54,58],"suspected,":[42],"patient":[44],"transferred":[46],"to":[47],"tertiary":[49],"care":[50],"center,":[51],"where":[52],"leptospirosis":[53,69],"diagnosed.":[55],"Antimicrobial":[56],"therapy":[57],"initiated,":[59],"patient's":[62],"condition":[63],"improved.":[64],"Myocardial":[65],"associated":[67],"should":[70],"be":[71],"considered":[72],"in":[73],"selected":[74],"patients.":[75],"This":[76],"highlights":[78],"importance":[80],"assessing":[82],"function":[85],"during":[86],"clinical":[87],"evaluation.":[88]},"counts_by_year":[],"updated_date":"2026-10-11T09:32:39.932853","created_date":"2026-08-08T00:00:00"}