{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T17:31:42Z","timestamp":1793640702799,"version":"4.5.1"},"reference-count":4,"publisher":null,"issue":"9","license":[{"start":{"date-parts":[[2020,9,15]],"date-time":"2020-09-15T00:00:00Z","timestamp":1600128000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/lib.ossn.ru\/jour\/about\/editorialPolicies#openAccessPolicy"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Kardiologiia"],"abstract":"<jats:p>The left three-atrial heart (LTH) is a rare congenital abnormality where the left auricle (LA) is divided into two chambers with an additional membrane. This article describes for the first time a clinical case of congenital heart defect with four atrial chambers. A 41-old man was hospitalized for newly diagnosed paroxysmal atrial fibrillation. On transthoracic echocardiogram (EchoCG), LA was considerably enlarged and divided into two equal interconnected parts with a membrane. Additional examination with contrast-enhanced EchoCG and computed tomography revealed two membranes dividing the LA into three chambers. Prediction for the patient was beneficial since there were no other developmental abnormalities of the heart, and the LA transmembrane pressure gradient (PG) was small. Data of literature on the incidence and prognosis of LTH are provided.<\/jats:p>","DOI":"10.18087\/cardio.2020.9.n619","type":"journal-article","created":{"date-parts":[[2020,11,2]],"date-time":"2020-11-02T04:39:07Z","timestamp":1604291947000},"page":"149-152","source":"Crossref","is-referenced-by-count":0,"title":["Left fouratrial heart. First clinical case"],"prefix":"10.68900","volume":"60","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2373-1183","authenticated-orcid":true,"given":"O. S.","family":"Chumakova","sequence":"first","affiliation":[{"name":"Central state medical academy of department of presidential affairs, Moscow, Russia\r\nThe Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E. E.","family":"Mirzoev","sequence":"additional","affiliation":[{"name":"The Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. P.","family":"Pimonov","sequence":"additional","affiliation":[{"name":"The Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. V.","family":"Ushakova","sequence":"additional","affiliation":[{"name":"The Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N. M.","family":"Voloshina","sequence":"additional","affiliation":[{"name":"The Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. S.","family":"Arkhipkina","sequence":"additional","affiliation":[{"name":"The Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. N.","family":"Baklanova","sequence":"additional","affiliation":[{"name":"The Municipal clinical hospital #17, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":null,"published-online":{"date-parts":[[2020,9,15]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","unstructured":"Fuchs MM, Connolly HM, Said SM, Egbe AC. Outcomes in patients with cor triatriatum sinister. Congenital Heart Disease. 2018;13(4):628\u201332. DOI: 10.1111\/chd.12624","DOI":"10.1111\/chd.12624"},{"key":"ref2","doi-asserted-by":"crossref","unstructured":"Niwayama G. Cor triatriatum. American Heart Journal. 1960;59:291\u2013 317. DOI: 10.1016\/0002-8703(60)90287-8","DOI":"10.1016\/0002-8703(60)90287-8"},{"key":"ref3","doi-asserted-by":"crossref","unstructured":"Nassar PN, Hamdan RH. Cor Triatriatum Sinistrum: Classification and Imaging Modalities. The European Journal of Cardiovascular Medicine. 2011;1(3):84\u20137. DOI: 10.5083\/ejcm.20424884.21","DOI":"10.5083\/ejcm.20424884.21"},{"key":"ref4","doi-asserted-by":"crossref","unstructured":"Rozema TK, Arruda J, Snyder CS. Cor Triatriatum: A Tale of Two Membranes. CASE. 2019;3(1):25\u20137. DOI: 10.1016\/j.case.2018.08.003","DOI":"10.1016\/j.case.2018.08.003"}],"container-title":["Kardiologiia"],"original-title":[],"link":[{"URL":"https:\/\/lib.ossn.ru\/jour\/article\/viewFile\/619\/808","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T17:17:43Z","timestamp":1793639863000},"score":1,"resource":{"primary":{"URL":"https:\/\/cardio.elpub.ru\/jour\/article\/view\/619"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,9,15]]},"references-count":4,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2020,9,15]]}},"URL":"https:\/\/doi.org\/10.18087\/cardio.2020.9.n619","relation":{},"ISSN":["2412-5660","0022-9040"],"issn-type":[{"value":"2412-5660","type":"electronic"},{"value":"0022-9040","type":"print"}],"subject":[],"published":{"date-parts":[[2020,9,15]]}}}