Quadricuspid aortic valve and right ventricular type of myocardial bridging in an asymptomatic middle-aged woman:A case report  

作　　者：Ivana Sopek Merkaš Nenad Lakušić Maja Hrabak Paar 

机构地区：[1]Department of Cardiology,Special Hospital for Medical Rehabilitation Krapinske Toplice,Krapinske Toplice 49217,Croatia [2]Department of Clinical Medicine,Faculty of Dental Medicine and Health Osijek,Osijek 31000,Croatia [3]Department of Internal Medicine,Family Medicine and History of Medicine,Faculty of Medicine Osijek,Osjiek 31000,Croatia [4]Department of Diagnostic and Interventional Radiology,University Hospital Centre Zagreb,Zagreb 10000,Croatia [5]School of Medicine,University of Zagreb,Zagreb 10000,Croatia

出　　处：《World Journal of Clinical Cases》2022年第25期8954-8961,共8页世界临床病例杂志

摘　　要：BACKGROUND Quadricuspid aortic valve(QAV)is a very rare congenital cardiac defect with the incidence of 0.0125%-0.033%(<0.05%)predominantly causing aortic regurgitation.A certain number of patients(nearly one-half)have abnormal function and often require surgery,commonly in their fifth or sixth decade.QAV usually appears as an isolated anomaly but may also be associated with other cardiac congenital defects.Echocardiography is considered the main diagnostic method although more and more importance is given to computed tomography(CT)and magnetic resonance imaging(MRI)as complementary methods.CASE SUMMARY A 60-year-old female patient was referred for transthoracic ultrasound of the heart as part of a routine examination in the treatment of arterial hypertension.She did not have any significant symptoms.QAV was confirmed and there were no elements of valve stenosis with moderate aortic regurgitation.At first,it seemed that in the projection of the presumed left coronary cusp,there were two smaller and equally large cusps along with two larger and normally developed cusps.Cardiac CT imaging was performed to obtain an even more precise valve morphology and it showed that the location of the supernumerary cusp is between the right and left coronary cusp,with visible central malcoaptation of the cusps.Also,coronary computed angiography confirmed the right-type of myocardial bridging at the distal segment of the left anterior descending coronary artery.Significant valve dysfunction often occurs in middle-aged patients and results in surgical treatment,therefore,a 1-year transthoracic echocardiogram control examination and follow-up was recommended to our patient.CONCLUSION This case highlights the importance of diagnosing QAV since it leads to progressive valve dysfunction and can be associated with other congenital heart defects which is important to detect,emphasizing the role of cardiac CT and MRI.

关 键 词：Quadricuspid aortic valve Congenital cardiac defect Aortic insufficiency Multimodal imaging Myocardial bridging Case report 

分 类 号：R542.52[医药卫生—心血管疾病]