PMID- 36939314 OWN - NLM STAT- MEDLINE DCOM- 20230929 LR - 20230929 IS - 1784-973X (Electronic) IS - 0001-5385 (Linking) VI - 78 IP - 8 DP - 2023 Oct TI - Plaque morphology and distribution in patients with and without myocardial bridge - an intravascular ultrasound study. PG - 894-900 LID - 10.1080/00015385.2023.2187117 [doi] AB - BACKGROUND: Myocardial bridging (MB) is a common congenital cardiovascular anomaly. There are reported associations of MB with different clinical presentations like effort angina, acute coronary syndromes (ACS) and sudden cardiac death. Acceleration of atherosclerosis in proximal vessel is reported in patients with MB, while bridged segments are reported to be free of atherosclerosis. METHODS: We assessed patients who underwent intravascular ultrasound (IVUS) guided percutaneous intervention (PCI) of left anterior descending (LAD) artery. Plaque characteristics derived from IVUS analysis were compared between those who displayed myocardial bridge versus those who did not harbour the anomaly. RESULTS: One hundred and forty-seven (147) patients underwent IVUS guided PCI. Incidence of MB was 44/147 (29.9%). Mean age of patients who had MB + was higher (62.1 +/- 10.3 vs. 57.8 +/- 11.2 (p = .03). 142/147 (96.6%) patients presented with ACS. ST elevation myocardial infarction (STEMI) was the most common presenting diagnosis (110/147 to 74.8%). There were no differences in qualitative plaque characteristics - attenuated plaque, calcification or calcium score between two groups. Plaque burden and length of the lesion in the proximal vessel were not different. Among patients with MB +, atheromatous extension to segments underlying the bridge was seen in 31/44 (70.5%) cases. CONCLUSIONS: In a series of patients who presented with advanced clinical atherosclerosis, plaque characteristics were not different in patients who harboured myocardial bridge vs. those who did not have the anomaly. Atheromatous involvement was seen extending into bridged segment contrary to previous reports. FAU - Narayanan, Sajan AU - Narayanan S AUID- ORCID: 0000-0003-4000-4041 AD - Little Flower Hospital & Research Institute, Angamaly, India. FAU - Joseph, Stigi AU - Joseph S AD - Little Flower Hospital & Research Institute, Angamaly, India. FAU - Varghese, Anwar Chennakkadan AU - Varghese AC AD - Little Flower Hospital & Research Institute, Angamaly, India. FAU - Nair, Rajesh Govindan AU - Nair RG AD - Little Flower Hospital & Research Institute, Angamaly, India. FAU - Mohan, Hareesh AU - Mohan H AD - Little Flower Hospital & Research Institute, Angamaly, India. FAU - Edger, Denim AU - Edger D AD - Little Flower Hospital & Research Institute, Angamaly, India. FAU - Sudhakar, Abish AU - Sudhakar A AD - Amrita Institute of Medical Sciences, Kochi, India. LA - eng PT - Journal Article DEP - 20230320 PL - England TA - Acta Cardiol JT - Acta cardiologica JID - 0370570 SB - IM MH - Humans MH - *Coronary Artery Disease/complications MH - *Percutaneous Coronary Intervention/adverse effects MH - Ultrasonography, Interventional MH - *Plaque, Atherosclerotic/diagnostic imaging/complications MH - Coronary Vessels/diagnostic imaging/pathology MH - *Acute Coronary Syndrome/diagnostic imaging/epidemiology MH - *Atherosclerosis MH - Coronary Angiography/adverse effects OTO - NOTNLM OT - Myocardial bridging OT - acute coronary syndrome OT - atherosclerosis OT - intravascular ultrasound OT - plaque burden OT - remodelling index EDAT- 2023/03/21 06:00 MHDA- 2023/09/29 06:44 CRDT- 2023/03/20 09:52 PHST- 2023/09/29 06:44 [medline] PHST- 2023/03/21 06:00 [pubmed] PHST- 2023/03/20 09:52 [entrez] AID - 10.1080/00015385.2023.2187117 [doi] PST - ppublish SO - Acta Cardiol. 2023 Oct;78(8):894-900. doi: 10.1080/00015385.2023.2187117. Epub 2023 Mar 20.