{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T13:40:32Z","timestamp":1781271632489,"version":"3.54.1"},"reference-count":12,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,8,4]],"date-time":"2021-08-04T00:00:00Z","timestamp":1628035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCDD"],"abstract":"<jats:p>In single coronary artery (SCA) anatomy, all coronary tributaries arise from a single ostium, providing perfusion to the entire myocardium. Coronary classification systems can facilitate the description of SCA anatomy. Aim: Evaluation of the applicability of Lipton classification and the Leiden Convention coronary coding system in SCA. Methods: All patients (n = 6209) who underwent computed tomography (CT) scanning between 2014 and 2018 were retrospectively examined for the presence of SCA and classified, according to Lipton classification and the Leiden Convention coronary coding system. Results: The prevalence of SCA was 0.51% (32\/6209). Twenty-eight patients (87.5%) had coexisting congenital heart disease (CHD), most frequently pulmonary atresia (9\/32, 28.1%). Ten patients (10\/32, 31.25%) could not be classified with either the Leiden Convention or Lipton classification (pulmonary atresia n = 9, common arterial trunk (CAT) n = 1). In one case with CAT, Lipton classification, but not the Leiden Convention, could be applied. In two cases with the transposition of the great arteries and in two cases of double outlet right ventricle, the Leiden Convention, but not the Lipton classification, could be applied. Conclusions: Both classifications are useful to detail information about SCA. As Lipton classification was not developed for structural heart disease cases, in complex CHD with abnormal position of the great arteries, the Leiden Convention is better applicable. The use of both systems is limited in pulmonary atresia. In this scenario, it is better to provide a precise description of the coronary origin and associated characteristics that might affect treatment and prognosis.<\/jats:p>","DOI":"10.3390\/jcdd8080093","type":"journal-article","created":{"date-parts":[[2021,8,4]],"date-time":"2021-08-04T03:57:41Z","timestamp":1628049461000},"page":"93","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Applicability of the Leiden Convention and the Lipton Classification in Patients with a Single Coronary Artery in the Setting of Congenital Heart Disease"],"prefix":"10.3390","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8334-0091","authenticated-orcid":false,"given":"Diana Isabel","family":"Katekaru-Tokeshi","sequence":"first","affiliation":[{"name":"Service of Cardiology, Hospital Nacional Dos de Mayo, Lima 150101, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mois\u00e9s","family":"Jim\u00e9nez-Santos","sequence":"additional","affiliation":[{"name":"Departament of Radiology, Service of Computed Tomography, Instituto Nacional de Cardiologia Ignacio Chavez, Juan Badiano 1, Col. Seccion XVI, Mexico City 14080, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire J.","family":"Koppel","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, Postal Zone B-04-P, 2300 RC Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hubert W.","family":"Vliegen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, Postal Zone B-04-P, 2300 RC Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariana","family":"D\u00edaz-Zamudio","sequence":"additional","affiliation":[{"name":"Departament of Radiology, Service of Computed Tomography, Instituto Nacional de Cardiologia Ignacio Chavez, Juan Badiano 1, Col. Seccion XVI, Mexico City 14080, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Castillo-Castell\u00f3n","sequence":"additional","affiliation":[{"name":"Departament of Radiology, Service of Computed Tomography, Instituto Nacional de Cardiologia Ignacio Chavez, Juan Badiano 1, Col. Seccion XVI, Mexico City 14080, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9132-0418","authenticated-orcid":false,"given":"Monique R. M.","family":"Jongbloed","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, Postal Zone B-04-P, 2300 RC Leiden, The Netherlands"},{"name":"Department of Anatomy and Embryology, Leiden University Medical Center, Einthovenweg 20, Postal Zone S-1-P, 2300 RC Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric","family":"Kimura-Hayama","sequence":"additional","affiliation":[{"name":"Departament of Radiology, Service of Computed Tomography, Instituto Nacional de Cardiologia Ignacio Chavez, Juan Badiano 1, Col. Seccion XVI, Mexico City 14080, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"391","DOI":"10.1016\/j.jcct.2013.11.009","article-title":"Single coronary artery: Spectrum of imaging findings with multidetector CT","volume":"7","author":"Restrepo","year":"2013","journal-title":"J. Cardiovasc. Comput. 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