{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T13:05:10Z","timestamp":1771938310079,"version":"3.50.1"},"reference-count":22,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2024,3,23]],"date-time":"2024-03-23T00:00:00Z","timestamp":1711152000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100012367","name":"MedStar Health Research Institute","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100012367","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cathet Cardio Intervent"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Full adoption of coronary microvascular dysfunction (CMD) assessment faces challenges due to its invasive nature and concerns about prolonged procedure time and increased contrast and\/or radiation exposure. We compared procedural aspects of CMD invasive assessment to diagnostic left heart catheterization (DLHC) in patients with chest pain who were not found to have obstructive coronary artery disease.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 227 patients in the Coronary Microvascular Disease Registry were compared to 1592 patients who underwent DLHC from August 2021 to November 2023. The two cohorts were compared using propensity\u2010score matching; primary outcomes were fluoroscopy time and total contrast use.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The participants' mean age was 64.1\u2009\u00b1\u200912.6 years. CMD\u2010assessed patients were more likely to be female (66.5% vs. 45.2%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001) and have hypertension (80.2% vs. 44.5%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), history of stroke (11.9% vs. 6.3%, <jats:italic>p<\/jats:italic>\u2009=\u20090.002), and history of myocardial infarction (20.3% vs. 7.7%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). CMD assessment was safe, without any reported adverse outcomes. A propensity\u2010matched analysis showed that patients who underwent CMD assessment had slightly higher median contrast exposure (50 vs. 40\u2009mL, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), and slightly longer fluoroscopy time (6.9 vs. 4.7\u2009min, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001). However, there was no difference in radiation dose (209.3 vs. 219 mGy, <jats:italic>p<\/jats:italic>\u2009=\u20090.58) and overall procedure time (31 vs. 29\u2009min, <jats:italic>p<\/jats:italic>\u2009=\u20090.37).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Compared to DLHC, CMD assessment is safe and requires only slightly additional contrast use (10\u2009mL) and slightly longer fluoroscopy time (2\u2009min) without clinical implications. These findings emphasize the favorable safety and feasibility of invasive CMD assessment.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ccd.30990","type":"journal-article","created":{"date-parts":[[2024,3,23]],"date-time":"2024-03-23T03:54:16Z","timestamp":1711166056000},"page":"703-709","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Coronary microvascular dysfunction assessment: A comparative analysis of procedural aspects"],"prefix":"10.1002","volume":"103","author":[{"given":"Ilan","family":"Merdler","sequence":"first","affiliation":[{"name":"Section of Interventional Cardiology MedStar Washington Hospital Center Washington District of Columbia USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3662-2832","authenticated-orcid":false,"given":"Ryan","family":"Wallace","sequence":"additional","affiliation":[{"name":"Section of Interventional Cardiology MedStar Washington 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