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https://www.readbyqxmd.com/read/29783234/-myocardial-bridge-as-the-only-cause-of-acute-coronary-syndrome-among-the-young-patients
#1
Liudmila O Miakinkova, Yurii V Teslenko, Irina V Tsyhanenko
OBJECTIVE: Introduction: Myocardial bridge is an inborn anomaly of coronary artery development, when a part of it is submerged in a myocard, which is pressing the coronary artery to a systola and restrains coronary blood circulation. Generally this feature of coronary blood circulation does not cause any clinical symptoms because the 85% of coronary blood stream of the left ventricle is provided by diastolic filling. Hemodynamic changes in atherosclerosis, tahicardie, hypertrophie of myocard are leading to the manifestation of clinical symptoms of ischemia...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29780643/late-diagnosis-of-anomalous-aortic-origin-of-a-coronary-artery-from-the-inappropriate-sinus-of-valsalva-during-investigation-of-chest-pain
#2
Brunna Priscylla Américo Carvalho, Marcio Antônio Dos Santos, Wilson Pedro Guimarães Neto, Júlio César Queiroz De França, Márcio Rogério de Souza Braite, Rodrigo Bottura De Araújo, Isabella Gomes Carvalho, Moacir Fernandes de Godoy
In this work are reported two cases of anomalous aortic origin of a coronary artery (AAOCA), with the left main coronary artery (LMCA) arising at the right sinus of Valsalva in a 77-year-old woman and in a 79-year-old man submitted to angiography after positive ischemic tests. The origin of the LMCA or the left descendant artery (LDA) from the right sinus of Valsalva has a prevalence of 0.2%, the origin of the circumflex artery (CXA) from the right sinus 0.5%, and the origin of the right coronary artery (RCA) from the left sinus of Valsalva has a prevalence of 0...
2018: Case Reports in Cardiology
https://www.readbyqxmd.com/read/29764528/symptomatic-myocardial-bridging-a-frequently-occurring-coronary-variation-can-cause-severe-myocardial-ischaemia-in-affected-children-with-underlying-cardiac-conditions
#3
Alexandra Kiess, Marcel Vollroth, Farhad Bakhtiary, Hiroshi Seki, Martin Kostelka, Milan Djukic, Ingo Daehnert, Robert Wagner
Myocardial bridging is a congenital coronary artery anomaly in which the coronary artery has a partly "tunnelled" intramyocardial course. This tunnelling leads to compression of the affected vessel segment during ventricular systole. It is considered to be a benign variation of the norm in about 25% of the population caused by an aberrancy of embryologic coronary development. The bridging is also thought to cause severe cardiac conditions in a few of those affected. The series of six young patients presented here is the largest series so far to report on symptomatic myocardial bridging in children with different underlying heart diseases...
May 16, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29762678/using-statistical-anomaly-detection-models-to-find-clinical-decision-support-malfunctions
#4
Soumi Ray, Dustin S McEvoy, Skye Aaron, Thu-Trang Hickman, Adam Wright
Objective: Malfunctions in Clinical Decision Support (CDS) systems occur due to a multitude of reasons, and often go unnoticed, leading to potentially poor outcomes. Our goal was to identify malfunctions within CDS systems. Methods: We evaluated 6 anomaly detection models: (1) Poisson Changepoint Model, (2) Autoregressive Integrated Moving Average (ARIMA) Model, (3) Hierarchical Divisive Changepoint (HDC) Model, (4) Bayesian Changepoint Model, (5) Seasonal Hybrid Extreme Studentized Deviate (SHESD) Model, and (6) E-Divisive with Median (EDM) Model and characterized their ability to find known anomalies...
May 11, 2018: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/29759708/intra-atrial-right-coronary-artery-and-its-ablation-implications
#5
Balaji Krishnan, Caroline Cross, Richard Dykoski, David G Benditt, Mackenzie Mbai, Edward McFalls, Jian-Ming Li, Stefan Bertog, Venkatakrishna N Tholakanahalli
OBJECTIVES: The study examined the frequency in which a right coronary artery (RCA) anomaly resulting in intra-atrialization of the vessel might increase risk of RCA damage during routine radiofrequency ablation in the right atrium even with low power or temperature. BACKGROUND: Right coronary artery (RCA) injury with endocardial RF ablation of the right atrium is a rare complication. METHODS: This prospective observational study comprised an analysis of coronary artery anatomies in 331 patients who underwent autopsies at our institution from 2005 to 2014...
September 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29755910/coronary-artery-fistula-causing-acute-myocardial-infarction-and-right-ventricle-thrombus
#6
Eduardo L Santos, Milena M Gouveia, Ricardo F Silva, Renata Ávila, Maria A Aquino, Luca T Dompieri, Renato D Lopes
Coronary artery fistula (CAF) is a rare congenital anomaly, which is most commonly asymptomatic. In symptomatic cases, aneurysms can occur with complications of thromboembolic events. This report describes a rare case of CAF presenting with complications of inferior acute myocardial infarction and thrombus formation in the right ventricle.
March 13, 2018: Curēus
https://www.readbyqxmd.com/read/29755631/anomalous-coronary-artery-from-the-opposite-sinus-acaos-technical-challenges-during-percutaneous-coronary-intervention
#7
Santosh Kumar Sinha, Mahmodula Razi, Anupam Mahrotra, Puneet Aggarwal, Anupam Singh, Lokendra Rekwal, Sunil Tripathi, Nishant Kumar Abhishekh, Vinay Krishna
Anomalies of the coronary arteries are reported in 1-2% of patients among diagnostic angiogram. Ectopic origin of right coronary artery (RCA) from opposite sinus is one of the most common and they are mainly benign, but at times may be malignant. We report a case of a 69-year-old male who underwent early invasive percutaneous coronary intervention for non-ST-segment elevation myocardial infarction (NSTEMI) where RCA arising from left sinus at the root of left main artery was culprit and various technical challenges were encountered while intervening in form of cannulation to tracking of hardwares...
April 2018: Cardiology Research
https://www.readbyqxmd.com/read/29749648/adult-type-alcapa-syndrome-a-rare-coronary-artery-anomaly
#8
Alexandros P Patrianakos, Adam Hatzidakis, Maria Marketou, Fragiskos I Parthenakis
Anomalous origin of the left coronary artery arising from the pulmonary artery (ALCAPA or Bland-White-Garland syndrome) is a rare but serious congenital coronary artery anomaly, with a poor prognosis without surgical repair. There are two types of ALCAPA syndrome: infant type and adult type. We present a rare case of a 63-year-old female patient, with isolated left anterior descending artery origin from the pulmonary artery. Coronary computed tomography angiography revealed giant and tortuous coronary arteries with many collaterals between the left and right coronary system...
May 11, 2018: Echocardiography
https://www.readbyqxmd.com/read/29744224/right-coronary-artery-originating-from-the-left-do-not-miss-the-diagnosis
#9
Sedat Türkoğlu, Serkan Ünlü, Gülten Aydoğdu Taçoy, Murat Özdemir
Objective: Left circumflex (LCx) artery originating from the right coronary arterial (RCA) system has been reported as the most common form of anomalous origination of a coronary artery from the opposite sinus (ACAOS). However, some studies claim that RCA originating from the left coronary sinus (LCS) is the most frequent form. The aim of this study was to determine the most common type of ACAOS in a single center. Materials and Methods: The database of the catheterization laboratory was retrospectively searched...
2018: Cardiology Research and Practice
https://www.readbyqxmd.com/read/29735395/is-fractional-flow-reserve-useful-in-assessing-coronary-artery-fistula-a-case-based-discussion-and-review
#10
Samual Hayman, Aashish Goela, Shahar Lavi
We present two cases where fractional flow reserve (FFR) was utilised to guide management of coronary artery fistula (CAF), an approach advocated in recent case studies. CAF is a coronary anomaly that may present with a variety of syndromes though is frequently asymptomatic. When to exclude the fistula (surgically or percutaneously) is not always clear. A way to quantify if the fistula is physiologically meaningful would be advantageous. Our findings suggest FFR may only be assessing the concomitant epicardial coronary artery disease (CAD) rather than the degree of coronary steal and its routine use in this setting is not supported...
April 19, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29734837/pulmonary-and-paradoxical-coronary-embolism-with-a-patent-foramen-ovale
#11
Giosuè Falcetta, Giovanni Scioti, Carlo Barzaghi, Uberto Bortolotti
Paradoxical embolism through a patent foramen ovale is a very unusual event considering that this cardiac anomaly may be present in as much as 26% of the general population. We describe the case of a 68-year-old man with a pulmonary and paradoxical coronary embolism in the presence of a patent foramen ovale. The finding of a worm-shaped thrombus though the atrial septum together with the risk of further embolization through the atrial septum prompted surgical treatment.
January 1, 2018: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29730694/intracardiac-echocardiography-to-guide-catheter-ablation-of-an-accessory-pathway-in-ebstein-s-anomaly-a-case-report
#12
Gabriel Cismaru, Lucian Muresan, Radu Rosu, Mihai Puiu, Gabriel Gusetu, Rodica Toganel, Dana Pop, Dumitru Zdrenghea
We present the case of a 17-year-old girl with Ebstein anomaly and repeated episodes of reentrant tachycardia due to a right posterior accessory pathway. Catheter ablation was performed using intracardiac echocardiography. A ViewFlex Xtra probe was inserted and showed an anormal tricuspid valve with elongated anterior leaflet and low insertion of the septal leaflet towards the apex. The anatomical annulus was identified by the course of the right coronary artery. RF application on the posterior annulus stopped the reentrant arrhythmia...
May 2, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29730348/epicardial-intraoperative-3-d-mapping-of-wolff-parkinson-white-in-a-child-with-ebstein-s-anomaly
#13
James C Perry, Andras Bratincsak, Suzanne Shepard, Matthew R Williams, Joseph Loslo, Raghav Murthy, John J Lamberti
Catheter ablation of arrhythmias in small patients has inherent significant risk due to patient, catheter, and lesion size. Heart block, perforation and coronary damage may occur. This report shows adaptation of a 3-D electroanatomic mapping system for intraoperative use in a small patient with Ebstein's anomaly undergoing Cone procedure and bidirectional Glenn. Use of this technique gave clear identification of the epicardial insertion points of two accessory pathways causing Wolff-Parkinson-White and resistant episodes of supraventricular tachycardia...
May 3, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29717103/angina-pectoris-in-young-male-due-to-agenesis-of-left-circumflex-artery
#14
Thomas J Guterbaum, Kristian A Øvrehus, Karsten T Veien, Jacob E Møller, Hans Mickley
BACKGROUND This case study demonstrated that although highly symptomatic, agenesis of the left circumflex artery was a benign finding. Anomalies of the coronary arteries were found to be the cause of sudden death in a young individual. Left circumflex anomalies were not associated with major cardiac events. CASE REPORT A 20-year-old male was admitted due to syncope preceded by chest pain. His electrocardiogram (ECG) showed global ST segment elevation as well as biphasic T waves in anterior precordial leads...
May 2, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29715702/incidence-and-risk-factors-for-right-ventricular-outflow-tract-obstruction-after-the-arterial-switch-operation
#15
Julie Cleuziou, Keti Vitanova, Jelena Pabst von Ohain, Masamichi Ono, Daniel Tanase, Melchior Burri, Rüdiger Lange
BACKGROUND:  The aim of this study was to evaluate the incidence and risk factors for the development of right ventricular outflow tract obstruction (RVOTO) after the arterial switch operation (ASO). METHODS:  Between 1983 and 2014, a total of 688 patients underwent ASO. RVOTO was defined as any obstruction of the right ventricular outflow tract (RVOT) requiring reintervention. RESULTS:  RVOTO developed in 79 patients (11%) at a median time of 3...
May 1, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29701356/arterial-switch-how-to-predict-reoperation
#16
Carolina Rodrigues, Rui Cerejo
INTRODUCTION: Jatene surgery or arterial switch is performed at our institution since 1989. It is mandatory to submit our results to an evaluation that allow us to identify the main causes of reoperation and, more importantly, to determine what variables predict the need of reoperation. METHODS: In this retrospective analysis were included all the 91 patients with d-TGA who underwent an arterial switch operation at Santa Marta Hospital between 1999 and 2016. RESULTS: Mean follow-up was 6 years (range 1-21 years)...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29691271/unusual-congenital-coronary-artery-anomaly-in-a-young-adult-presenting-as-sudden-cardiac-arrest
#17
Manuel Cortes, Carlos A Roldan, Stacey Clegg
A previously asymptomatic young female with no previous medical or cardiac history collapsed during indoor exercise. A portable automatic external defibrillator showed a shockable rhythm. She received multiple electrical shocks with return to normal sinus rhythm without ischaemic ECG changes. Her troponin level was mildly elevated. A transthoracic echocardiogram revealed moderately reduced left ventricular ejection fraction with global hypokinesis. During emergent coronary angiography, the left main coronary artery could not be found...
April 24, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29662811/management-of-coronary-sinus-ostial-atresia-during-a-staged-operation-of-a-functional-single-ventricle
#18
Seung Ri Kang, Won Kyoun Park, Bo Sang Kwon, Jae Kon Ko, Hyun Woo Goo, Jeong-Jun Park
Coronary sinus ostial atresia (CSOA) with persistent left superior vena cava (LSVC) in the absence of an unroofed coronary sinus is a benign and rare anomaly that may be taken lightly in most instances. However, if overlooked in patients undergoing univentricular heart repair such as bidirectional Glenn or Fontan-type surgery, fatal surgical outcomes may occur due to coronary venous drainage failure. We report a case of CSOA with a persistent LSVC that was managed through coronary sinus rerouting during a total cavopulmonary connection, and provide a review of the literature regarding this rare anomaly...
April 2018: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29662704/diagnosis-of-anomalous-origin-of-the-left-coronary-artery-from-the-pulmonary-artery-with-echocardiography-and-digital-subtraction-angiography
#19
Haiyan Yang, Jinqing Li, Xiaojuan Ji
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a common coronary artery anomaly associated with high mortality and may lead to sudden death if left unrecognized and untreated. This report describes an 8-year-old female who had cardiac murmur but with no clinical symptoms. Electrocardiogram (ECG) was normal, but echocardiography made the diagnosis of ALCAPA. Digital subtraction angiography (DSA) with cardiac catheterization angiography (CAG) confirmed the diagnosis, and finally, the patient received surgery...
2018: Case Reports in Cardiology
https://www.readbyqxmd.com/read/29656724/large-right-ventricular-sinusoids-in-an-infant-with-aorta-left-ventricular-tunnel-and-proximal-right-coronary-artery-atresia
#20
Peter C Chen, Joseph A Spinner, Jeffrey S Heinle
We report a 1-month-old infant diagnosed with an aorta-left ventricular tunnel, ventricular septal defect, and right coronary atresia with right ventricular sinusoids. The patient's anatomy and physiology did not indicate right-ventricular-dependent coronary circulation, and therefore right ventricular decompression could be performed without compromising coronary perfusion during surgical correction. A detailed understanding of the coronary anatomy is critical in managing this defect when coronary anomalies are present...
April 16, 2018: Cardiology in the Young
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