{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T00:22:18Z","timestamp":1776730938042,"version":"3.51.2"},"reference-count":17,"publisher":"FapUNIFESP (SciELO)","issue":"6","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Assoc. Med. Bras."],"abstract":"<jats:p>SUMMARY  OBJECTIVE: The aim of this study was to identify the risk factors and potential causes of myocardial infarction with non-obstructive coronary arteries in patients presenting with acute coronary syndrome.  METHODS: This retrospective case series study was conducted at the coronary intensive care unit of our hospital between January 2019 and December 2023. Of 3,107 acute coronary syndrome patients, 195 diagnosed with myocardial infarction with non-obstructive coronary arteries were included. Clinical characteristics, risk factors, laboratory test results, and electrocardiographic, echocardiographic, and coronary angiography findings were analyzed. Additionally, vitamin D, homocysteine, folate, and vitamin B12 levels were compared between myocardial infarction with non-obstructive coronary arteries patients and controls with non-occlusive coronary artery disease without acute coronary syndrome.  RESULTS: Among a total of 3,107 acute coronary syndrome patients, 195 (6.28%) were diagnosed with myocardial infarction with non-obstructive coronary arteries. Their mean age was 53.9 years, and 83% of the patients were male. Hypertension (45%), diabetes mellitus (33%), and smoking (70%) were prominent risk factors. Myocardial bridge was the most common cause of myocardial infarction with non-obstructive coronary arteries (11.2%). The left anterior descending artery was the most frequent single vessel responsible for acute coronary syndrome (26%). Vitamin D, B12, and folate levels were statistically significantly lower in myocardial infarction with non-obstructive coronary arteries patients compared to controls (p&lt;0.05).  CONCLUSIONS: Smoking and hypertension were prominent risk factors for myocardial infarction with non-obstructive coronary arteries. Myocardial bridge was the most commonly identified cause, and vitamin D deficiency was significantly associated with myocardial infarction with non-obstructive coronary arteries.<\/jats:p>","DOI":"10.1590\/1806-9282.20242040","type":"journal-article","created":{"date-parts":[[2025,7,8]],"date-time":"2025-07-08T14:00:34Z","timestamp":1751983234000},"source":"Crossref","is-referenced-by-count":1,"title":["Identification of risk factors in myocardial infarction with non-obstructive coronary arteries"],"prefix":"10.1590","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2792-7685","authenticated-orcid":false,"given":"Ayd\u0131n","family":"Dursun","sequence":"first","affiliation":[{"name":"Mudanya University,  T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6326-663X","authenticated-orcid":false,"given":"Hakan","family":"Guven","sequence":"additional","affiliation":[{"name":"Mudanya University,  T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5077-0527","authenticated-orcid":false,"given":"Mehmet Cem","family":"Basel","sequence":"additional","affiliation":[{"name":"Mudanya University,  T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-3321-7170","authenticated-orcid":false,"given":"Mustafa Selcuk","family":"Atasoy","sequence":"additional","affiliation":[{"name":"University of Health Sciences, Bursa City Hospital,  T\u00fcrkiye"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6529-4845","authenticated-orcid":false,"given":"Ahmet","family":"Yuksel","sequence":"additional","affiliation":[{"name":"University of Health Sciences, Bursa City Hospital,  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