{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T23:31:41Z","timestamp":1777937501307,"version":"3.51.4"},"reference-count":12,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2019,12,10]],"date-time":"2019-12-10T00:00:00Z","timestamp":1575936000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Pediatr Dev Pathol"],"published-print":{"date-parts":[[2020,8]]},"abstract":"<jats:p>Cartilaginous metaplasia involving the atrioventricular (AV) node is an uncommon entity that may cause sudden cardiac death secondary to dysrhythmias. We report 2 autopsy cases of full-term male newborns: 1 stillborn and 1 live-born, with antemortem bradycardia who died in the peripartum period. An examination of the cardiac conduction system in both cases demonstrated extensive cartilaginous metaplasia of the central fibrous body and involvement of the AV node and bundle of His. The cases highlight the recognition of cardiac conduction system anomalies as a cause of sudden perinatal death. In cases of perinatal death with preceding arrhythmia, postmortem sections of the cardiac conduction system are recommended to examine for cardiac conduction system anomaly.<\/jats:p>","DOI":"10.1177\/1093526619892352","type":"journal-article","created":{"date-parts":[[2019,12,10]],"date-time":"2019-12-10T19:20:07Z","timestamp":1576005607000},"page":"312-316","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Cartilaginous Metaplasia Involving the Atrioventricular Node and Bundle of His Contributing to Sudden Early Neonatal Death"],"prefix":"10.1177","volume":"23","author":[{"given":"Linda J","family":"Szymanski","sequence":"first","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, Children\u2019s Hospital Los Angeles, Los Angeles, California"},{"name":"Keck School of Medicine, University of Southern California, Los Angeles, California"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Linda M","family":"Ernst","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, NorthShore University HealthSystem, Evanston, Illinois"},{"name":"The University of Chicago, Pritzker School of Medicine, Chicago, Illinois"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2019,12,10]]},"reference":[{"key":"bibr1-1093526619892352","first-page":"207","volume-title":"Sudden Infant Death Syndrome. 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