Incidence and Morphological Study of Myocardial Bridge in the State of Ceará: A Cadaveric Study.

IF 2 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS

Arquivos Brasileiros de Cardiologia Pub Date : 2023-06-01 DOI:10.36660/abc.20220460

Jalles Dantas de Lucena, Hudson Martins de Brito, João Victor Souza Sanders, Jonathan Barros Cavalcante, Michelly Carneiro Collyer, Cecília de Lima Leite, Helson Freitas da Silveira, Julio Cesar Campos Ferreira Filho

{"title":"Incidence and Morphological Study of Myocardial Bridge in the State of Ceará: A Cadaveric Study.","authors":"Jalles Dantas de Lucena, Hudson Martins de Brito, João Victor Souza Sanders, Jonathan Barros Cavalcante, Michelly Carneiro Collyer, Cecília de Lima Leite, Helson Freitas da Silveira, Julio Cesar Campos Ferreira Filho","doi":"10.36660/abc.20220460","DOIUrl":null,"url":null,"abstract":"Background: Myocardial bridges (MB) are anatomical anomalies with possible clinical repercussions; hence, their understanding deserves attention.Objective: To determinate the prevalence and characterize MB in human hearts from the state of Ceará. Methods: Fifty hearts of adult human cadavers from the Medicine School of Federal University of Ceará, Brazil. The hearts were dissected to identify MBs that pass over part of the coronary artery. The segment of the artery (proximal, middle, and distal) with a bridge was identified. The external diameter of the artery at the proximal and distal points of the MB was measured. The length and thickness of the MB were also measured with an electronic caliper. The muscle index (MMI) of the MB was calculated as the product of length and thickness expressed in millimeters. The significance level adopted in the statistical analysis was 5%.Results: MB was confirmed in 40% of sample. Approximately one third of the sample had only 1 MB. MB was most frequently found over the anterior interventricular branch of the left coronary artery (59.25%, p=0.02), and its prevalence in other branches was much lower (22.23%). The most affected segments of arteries were the superior (44.44%) and medium (40.74%). The mean diameter of arteries proximal to the MB was 2.38±0.97mm (range=0.78-5.15mm), and the diameter distal to the MB was 1.71±0.75mm (range=0.42-3.58mm). The length was measured as mean=8.55±5.27mm, while the mean thickness was 0.89±0.33mm.Conclusion: A high prevalence of MB is more likely to affect the left coronary artery system with larger MMI than other affected branches.","PeriodicalId":8399,"journal":{"name":"Arquivos Brasileiros de Cardiologia","volume":"120 7","pages":"e20220460"},"PeriodicalIF":2.0000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10365010/pdf/","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arquivos Brasileiros de Cardiologia","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.36660/abc.20220460","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}

引用次数: 1

Abstract

Background: Myocardial bridges (MB) are anatomical anomalies with possible clinical repercussions; hence, their understanding deserves attention.

Objective: To determinate the prevalence and characterize MB in human hearts from the state of Ceará. Methods: Fifty hearts of adult human cadavers from the Medicine School of Federal University of Ceará, Brazil. The hearts were dissected to identify MBs that pass over part of the coronary artery. The segment of the artery (proximal, middle, and distal) with a bridge was identified. The external diameter of the artery at the proximal and distal points of the MB was measured. The length and thickness of the MB were also measured with an electronic caliper. The muscle index (MMI) of the MB was calculated as the product of length and thickness expressed in millimeters. The significance level adopted in the statistical analysis was 5%.

Results: MB was confirmed in 40% of sample. Approximately one third of the sample had only 1 MB. MB was most frequently found over the anterior interventricular branch of the left coronary artery (59.25%, p=0.02), and its prevalence in other branches was much lower (22.23%). The most affected segments of arteries were the superior (44.44%) and medium (40.74%). The mean diameter of arteries proximal to the MB was 2.38±0.97mm (range=0.78-5.15mm), and the diameter distal to the MB was 1.71±0.75mm (range=0.42-3.58mm). The length was measured as mean=8.55±5.27mm, while the mean thickness was 0.89±0.33mm.

Conclusion: A high prevalence of MB is more likely to affect the left coronary artery system with larger MMI than other affected branches.

Abstract Image

查看原文本刊更多论文

心肌桥在心肌缺血状态下的发生率和形态学研究:一项尸体研究。

背景:心肌桥(MB)是一种可能引起临床反应的解剖异常;因此，他们的理解值得关注。目的:了解心肌梗死患者心肌MB的患病率及特征。方法:取材于巴西塞埃尔联邦大学医学院成人尸体50具心脏。解剖心脏以确定通过部分冠状动脉的MBs。确定了带桥的动脉段(近、中、远)。测量MB近端和远端动脉外径。同时用电子卡尺测量MB的长度和厚度。MB的肌肉指数(muscle index, MMI)计算为长度与厚度的乘积，单位为毫米。统计学分析采用显著性水平5%。结果:40%的标本确诊为MB。大约三分之一的样本只有1 MB。MB最常见于左冠状动脉前室间支(59.25%，p=0.02)，其他分支的患病率要低得多(22.23%)。受影响最大的动脉段为上动脉(44.44%)和中动脉(40.74%)。动脉近端平均直径为2.38±0.97mm(范围0.78 ~ 5.15mm)，远端平均直径为1.71±0.75mm(范围0.42 ~ 3.58mm)。长度平均值为8.55±5.27mm，厚度平均值为0.89±0.33mm。结论:MMI较大的左冠状动脉系统比其他分支更易发生MB的高发。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Arquivos Brasileiros de Cardiologia 医学-心血管系统

CiteScore

3.70

自引率

30.80%

发文量

234

审稿时长

3-8 weeks

期刊介绍： With more than 70 years of existence, Arquivos Brasileiros de Cardiologia is the main channel for the dissemination of Brazilian scientific research on cardiovascular sciences. Published in two languages and indexed in major international databases, all scientific contributions are peer-reviewed and reviewed by editorial board members selected among the most reputable researchers in Brazil and abroad. The manuscripts are reviewed according to their relevance and originality, scientific accuracy and level of importance for the advancement of science. With an average time of nine months between the initial submission and the effective publication of the manuscripts, and less than seven months until they are published on PubMed, Arquivos Brasileiros de Cardiologia can ensure the quick inclusion of the researchers’ papers in the international literature.