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The medulla contains key structures involved in autonomic regulation, including the dorsal vagal nucleus and the nucleus tractus solitarius. Acute infarction may disrupt cardiac autonomic regulation pathways, resulting in altered parasympathetic and sympathetic outflow to the sinoatrial and atrioventricular nodes, with potentially life-threatening effects.<\/jats:p>","DOI":"10.1136\/bcr-2012-007783","type":"journal-article","created":{"date-parts":[[2013,2,5]],"date-time":"2013-02-05T02:13:12Z","timestamp":1360030392000},"page":"bcr2012007783","source":"Crossref","is-referenced-by-count":10,"title":["An unexpected Holter monitor result: multiple sinus arrests in a patient with lateral medullary syndrome"],"prefix":"10.1136","volume":"2013","author":[{"given":"Shiwen","family":"Koay","sequence":"first","affiliation":[{"name":"Department of Acute Medicine, Lister Hospital, East and North Hertfordshire NHS Trust, Stevenage, Hertfordshire, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bikash","family":"Dewan","sequence":"additional","affiliation":[{"name":"Department of Neurosciences, Royal Free London NHS Foundation Trust, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2013,2,4]]},"reference":[{"key":"2025082802500993000_2013.feb04_1.bcr2012007783.1","doi-asserted-by":"publisher","DOI":"10.1136\/practneurol-2011-000014"},{"key":"2025082802500993000_2013.feb04_1.bcr2012007783.2","doi-asserted-by":"crossref","first-page":"1187","DOI":"10.1161\/01.STR.31.5.1187","article-title":"Solitary tract nuclei in acute heart failure","volume":"31","author":"De Caro","year":"2000","journal-title":"Stroke"},{"key":"2025082802500993000_2013.feb04_1.bcr2012007783.3","doi-asserted-by":"crossref","unstructured":"Von Heinemann P Grauer O Schuierer G . 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