Circadian distribution of acute myocardial infarction by anatomic location and coronary artery involvement

Paolo Moruzzi, Giancarlo Marenzi, Sergio Callegari, Mauro Contini

Research output: Contribution to journalArticle

Abstract

PURPOSE: Acute myocardial infarction follows a circadian pattern, with a morning peak ascribed to sympathetic activation. However, about 20% of myocardial infarctions occur between midnight and 6 AM; these events may have different characteristics. METHODS: We studied 1571 patients with acute myocardial infarction (866 anterior and 705 inferior myocardial infarctions) who were admitted to our coronary care units from January 1997 to February 2001. We noted the time of the infarction, its anatomic location, and the involved coronary arteries. RESULTS: Inferior myocardial infarctions were more frequent during the night (midnight to 6 AM) than during other periods of the day (n = 238, 34% of all inferior infarctions, P

Original languageEnglish
Pages (from-to)24-27
Number of pages4
JournalAmerican Journal of Medicine
Volume116
Issue number1
DOIs
Publication statusPublished - Jan 1 2004

ASJC Scopus subject areas

  • Nursing(all)

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