{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T23:42:38Z","timestamp":1792885358889,"version":"4.5.0"},"reference-count":10,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"10","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circ: Arrhythmia and Electrophysiology"],"published-print":{"date-parts":[[2016,10]]},"abstract":"<jats:sec>\n            <jats:title>Background\u2014<\/jats:title>\n            <jats:p>Radiofrequency catheter ablation (RFCA) of idiopathic ventricular arrhythmias (VAs) originating from the basal portion of the left ventricular (LV) summit, which is divided from the apical LV (A-LV) summit by the great cardiac vein (GCV), is challenging. This study investigated the efficacy of RFCA and electrocardiographic and electrophysiological characteristics of these VAs.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods and Results\u2014<\/jats:title>\n            <jats:p>Forty-five consecutive patients with symptomatic idiopathic LV summit VAs were studied. RFCA was successful within the main trunk of the GCV in 16 patients and within a branch of the GCV traversing the basal LV (B-LV) summit in 7. Transpericardial RFCA was successful on the epicardial surface in the A-LV summit in 6 patients and was abandoned in 14 with the B-LV summit VAs because of the close proximity to the coronary arteries and thick fat pads. RFCA was successful at the aortomitral continuity in 3 patients (2 with a failed transpericardial RFCA), and left coronary cusp in 1. The RFCA success rate of the A-LV summit VAs including the GCV VAs was 100% (22\/22), whereas that of the B-LV summit VAs was 48% (11\/23). The B-LV summit VAs could be differentiated from the A-LV summit VAs by left bundle branch block pattern, QRS duration \u2264175 ms, precordial transition \u2265V1, and maximum deflection index of \u22650.55.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions\u2014<\/jats:title>\n            <jats:p>This study revealed that \u224850% of the B-LV summit VAs could be eliminated by a direct approach through a GCV branch running below the proximal left coronary arteries and a remote approach from the adjacent endocardial sites.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circep.116.004202","type":"journal-article","created":{"date-parts":[[2016,10,12]],"date-time":"2016-10-12T01:51:39Z","timestamp":1476237099000},"update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":66,"title":["Challenging Radiofrequency Catheter Ablation of Idiopathic Ventricular Arrhythmias Originating From the Left Ventricular Summit Near the Left Main Coronary Artery"],"prefix":"10.1161","volume":"9","author":[{"given":"Takumi","family":"Yamada","sequence":"first","affiliation":[{"name":"From the Division of Cardiovascular Disease (T.Y., H.D., H.T.M., G.N.K.) and Department of Pathology (S.H.L.), University of Alabama at Birmingham."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Harish","family":"Doppalapudi","sequence":"additional","affiliation":[{"name":"From the Division of Cardiovascular Disease (T.Y., H.D., H.T.M., G.N.K.) and Department of Pathology (S.H.L.), University of Alabama at Birmingham."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvio H.","family":"Litovsky","sequence":"additional","affiliation":[{"name":"From the Division of Cardiovascular Disease (T.Y., H.D., H.T.M., G.N.K.) and Department of Pathology (S.H.L.), University of Alabama at Birmingham."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. Thomas","family":"McElderry","sequence":"additional","affiliation":[{"name":"From the Division of Cardiovascular Disease (T.Y., H.D., H.T.M., G.N.K.) and Department of Pathology (S.H.L.), University of Alabama at Birmingham."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G. Neal","family":"Kay","sequence":"additional","affiliation":[{"name":"From the Division of Cardiovascular Disease (T.Y., H.D., H.T.M., G.N.K.) and Department of Pathology (S.H.L.), University of Alabama at Birmingham."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.611640"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2008.09.029"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCEP.110.939744"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrcardio.2012.74"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2012.01.022"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCEP.114.001615"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCEP.111.967257"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2010.10.022"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCEP.114.002259"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-65983-6"}],"container-title":["Circulation: Arrhythmia and Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ahajournals.org\/doi\/full\/10.1161\/CIRCEP.116.004202","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,12]],"date-time":"2024-05-12T23:42:16Z","timestamp":1715557336000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ahajournals.org\/doi\/10.1161\/CIRCEP.116.004202"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,10]]},"references-count":10,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2016,10]]}},"alternative-id":["10.1161\/CIRCEP.116.004202"],"URL":"https:\/\/doi.org\/10.1161\/circep.116.004202","relation":{},"ISSN":["1941-3149","1941-3084"],"issn-type":[{"value":"1941-3149","type":"print"},{"value":"1941-3084","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,10]]},"assertion":[{"value":"2016-03-26","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-08-25","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2016-10-11","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e004202"}}