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Sandeep Nefthi N Division of Pediatric Cardiology, Children's National Health System, Washington, District of Columbia, United States of - - 2014
Coronary sinus atrial septal defects are the rarest defects of the atrial septum comprising <1% of the five different types of atrial septal defects. Despite the widespread adoption of percutaneous device closure of secundum atrial septal defects, the published experience with percutaneous device closure of coronary sinus atrial septal defects ...
Warraich Haider J HJ From the Departments of Medicine, Cardiovascular Division (H.J.W., M.G., W.J.M.) and Radiology (W.J.M.), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, - - 2014
Thromboembolism in paroxysmal atrial fibrillation (AF) has often been attributed to occult AF. We hypothesized that the surface ECG may not always reflect left atrial appendage (LAA) mechanical function. Transesophageal echocardiographic images from 201 consecutive patients undergoing transesophageal echocardiography by a single operator were reviewed. LAA pulse wave Doppler phenotype, ...
Gonna Hanney H Department of Cardiology, St. George's Hospital, Blackshaw Rd, SW17 0QT, London, - - 2014
A number of therapeutic strategies exist for the restoration and maintenance of sinus rhythm in patients presenting with atrial fibrillation. The acute success rate with electrical cardioversion is high. However, many patients relapse into atrial fibrillation. A major challenge faced by those who care for patients with atrial fibrillation is ...
Nakano Yusuke Y 1 Department of Pediatric Cardiology, Yokohama City University School of Medicine, - - 2014
We report a case of unroofed coronary sinus not associated with the persistent left superior vena cava. Definite diagnosis of the unroofed coronary sinus was obtained by trans-oesophageal echocardiography, which revealed the unroofed portion with left-to-right shunt. Real-time three-dimensional trans-oesophageal echocardiography could show the whole pictures of the defect, which ...
Bhattacharya Shamik S Tissue Mechanics Laboratory Biomedical Engineering Program and Department of Mechanical Engineering University of Connecticut, Storrs, CT 06269, United - - 2014
The transcatheter mitral valve repair (TMVR) technique utilizes a stent to cinch a segment of the mitral annulus (MA) and reduces mitral regurgitation. The cinching mechanism results in reduction of the septal-lateral distance. However, the mechanism has not been characterized completely. In this study, a method was developed to quantify ...
Liu Xiao-yan - - 2014
The significance of isolated diastolic potentials (IDPs) in patients with idiopathic ventricular arrhythmias (IVAs) arising from right ventricular outflow tract (RVOT) is currently unknown. The objective of this study was to clarify the characteristics of IDPs and its role in guiding ablation in RVOT-IVAs. Twenty-five consecutive patients with RVOT-IVAs and ...
Ciaccio Edward J EJ 1Department of Medicine, Division of Cardiology, Columbia University Medical Center, New York, - - 2014
-Improved understanding of the mechanisms underlying infarct border zone (IBZ) electrogram fractionation may be helpful to identify arrhythmogenic regions in the post-infarction heart. We describe the generation of electrogram fractionation from changes in activation wavefront curvature in experimental canine infarction. -A model was developed to estimate the extracellular signal shape ...
Akerström Finn F Cardiac Arrhythmia and Electrophysiology Unit, Department of Cardiology, Hospital Virgen de la Salud, Toledo, - - 2014
An 80-year-old man with a history of ischemic cardiomyopathy with healed anterior myocardial infarction, severe left ventricular systolic dysfunction, sinus node dysfunction and ventricular tachycardia (VT) received a dual-chamber Medtronic® Maximo® II DR ICD model D284DRG in 2008. This article is protected by copyright. All rights reserved.
Boyle Patrick M PM Institute for Computational Medicine, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, United States of - - 2014
Organ-scale arrhythmogenic consequences of source-sink mismatch caused by impaired excitability remain unknown, hindering the understanding of pathophysiology in disease states like Brugada syndrome and ischemia. We sought to determine whether sodium current (INa) reduction in the structurally normal heart unmasks a regionally heterogeneous substrate for the induction of sustained arrhythmia ...
Raza Ali A Department of Cardiology, Castle Hill Hospital, East Yorkshire, - - 2014
A 46-year-old man was found to have an abnormal ECG taken during a routine health and blood pressure check. His only symptom was non-specific central chest discomfort, unrelated to exertion. His ECG showed sinus rhythm, a normal axis and poor R wave progression across the chest leads and lateral T ...
Fadel Bahaa M BM King Faisal Specialist Hospital & Research Center, Riyadh, Saudi - - 2013
Proper interpretation of the spectral Doppler signal and elucidation of the underlying hemodynamics can at times be problematic due to confounding factors, one of them being a rapid heart rate. In this article, we discuss the use of carotid sinus massage (CSM) in the echocardiography laboratory as a maneuver to ...
Kittnar O O Institute of Physiology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic. - - 2013
Spontaneous depolarization similar to that from the sinus node was documented from the myocardial sleeves of pulmonary veins (PV) after isolation procedures. It was then hypothesized that sinus node-like tissue is present in the PVs of humans. Based on a number of features, the myocardium of myocardial sleeves (MS) is ...
Nazinitsky Allison - - 2013
Transient bradycardia in the critical care setting is frequently caused by hypoxemia or oropharyngeal manipulation. Central lines have been associated with a variety of cardiac arrhythmias, but sinus arrest and asystole have not been previously reported. A 38-year-old woman with multisystem organ failure had several episodes of prolonged sinus arrest, ...
Prom Rathasen - - 2013
To review the thromboembolic risk, pathophysiology associated with the risk, and literature investigating the use of antithrombotics in patients with heart failure with reduced ejection fraction and normal sinus rhythm (HFrEF-NSR). An English language literature search was performed with MEDLINE/PubMed and Embase from January 1950 to October 2013 using the ...
Durukan A B - - 2013
Aim: Atrial fibrillation is the most common arrhythmia and complication following coronary bypass surgery. Besides well-known risk factors, inflammatory parameters have gained popularity assessing the risk of postoperative atrial fibrillation. In this study, we aimed to document the relation between neutrophil/lymphocyte ratio and postoperative atrial fibrillation. Methods: Between January 2011 ...
Lim Paul Chun Yih PC Department of Cardiology, National Heart Centre Singapore, Singapore, - - 2013
A 48-year-old male patient underwent cardiac resynchronization therapy defibrillator implantation, and he was found to have atresia of the coronary sinus ostium with venous drainage occurring via a persistent left-sided superior vena cava, which was connected to the right-sided superior vena cava by the innominate vein. This is a rare ...
Siddiqui Adeel M AM Adeel M Siddiqui, Long-Bao Cao, Assad Movahed, Department of Cardiovascular Sciences, East Carolina University, Brody School of Medicine, East Carolina Heart Institute, Greenville, NC 27834, United - - 2013
Persistent left superior vena cava, usually an incidental finding, is the most common thoracic vein anatomical variation draining into the coronary sinus. Central venous catheter procedures may be complicated secondary to the presence of a persistent left superior vena cava, leading to life-threatening complications such as arrhythmias, cardiogenic shock, and ...
Kobayashi Yukari - - 2013
A case of acute myocardial infarction (AMI) due to thrombus in the left coronary cusp to the ascending aorta is described. There was no clinical evidence of coagulopathy, immunodisability, or local erosive lesion of the aortic and sinus of Valsalva wall macroscopically. Secondary polycythemia, induced by heavy smoking, was the ...
El-Said Howaida - - 2013
The patient was a male infant with L-transposition of great arteries (L-TGA), Ebstein's anomaly of the tricuspid valve, subvalvar aortic stenosis, ventricular septal defect (VSD), hypoplastic right ventricle, arch hypoplasia, and congenital complete heart block. He underwent a Norwood procedure, aortic arch repair, permanent pacemaker implantation, and a 3.5-mm aortopulmonary ...
De Pauw Michel - - 2013
Sinus tachycardia due to sympathetic activation may be the ultimate response to support cardiac output. Abrupt heart rate reduction in this condition may be deleterious as is illustrated by two cases. Both patients were referred in cardiogenic shock after inappropriate treatment with a beta-blocking agent, initiated as a symptomatic treatment ...
Hong Man Yong - - 2013
Coronary artery anomalies are rare presentations in primary percutaneous coronary interventions of acute myocardial infarction. Herein, we report the case of a 59-year-old man with acute anterior myocardial infarction who had anomalous separate origin of left anterior descending artery (LAD) and left circumflex artery (LCX) from the left coronary aortic ...
Wu Xiaolin - - 2013
The case of a patient with narrow QRS-complex supraventricular tachycardia and atrial flutter is described. The 12-lead surface electrocardiogram (ECG) revealed sinus rhythm with ventricular pre-excitation and negative δ waves in leads II, III and aVF, indicating Wolff-Parkinson-White syndrome with a posteroseptal accessory pathway (AP). Coronary sinus angiography revealed the ...
Oh Kyungmi - - 2013
Post-stroke atrial fibrillation has been frequently reported especially in the patients with right insular infarct as an evidence of cerebrogenic mechanism affecting on cardiac rhythm. However, conversion to normal sinus rhythm after stroke in patients who had atrial fibrillation has not been reported. A 88-year-old men who had untreated atrial ...
Peng David M - - 2013
The coronary sinus can become obstructed with any instrumentation at or near the ostium such as in atrioventricular canal defect repairs. This complication may lead to a wide range of consequences including dyspnea, angina, myocardial infarction, and sudden death. The following report illustrates the importance of careful perioperative echocardiographic evaluation ...
Takazawa Takanori - - 2013
We describe asymptomatic sinus arrest and post-hiccup cough syncope in a patient with medullary infarction. A 78-year-old woman developed arrhythmia, hiccup, and cough syncope attacks. Neurological examination was not remarkable. Cough syncope occurs after hiccup attacks. Bradycardia and decreased blood pressure were also present after the beginning cough. Holter 24-hour ...
Mittal S R SR Department of Cardiology, St. Francis Hospital, - - 2013
One case of inferior vena cava type sinus venosus defect is reported. It is likely to be missed on transthoracic echocardiography. Transesophageal echocardiography is useful. Unlike superior sinus venosus defect which are easily visible on transesophageal echocardiography, a careful search is needed to detect inferior sinus venosus defects. All patients ...
Shimizu Takahiro - - 2013
BACKGROUND: This study aimed to investigate whether left atrial appendage (LAA) dysfunction evaluated by transesophageal echocardiography (TEE) during sinus rhythm is predictable of paroxysmal atrial fibrillation (PAF) as an embolic source in the acute stage of stroke. METHODS AND RESULTS: We measured and analyzed LAA flow velocity (LAA-FV) and LAA ...
Yoon Ji Hyun - - 2013
BACKGROUND: Paroxysmal atrial fibrillation (PaAF) may present as a single self-terminating episode of atrial fibrillation (AF) or a more persistent form after sinus conversion. We investigated predictors of recurrence in patients with PaAF. HYPOTHESIS: Left atrial function would be an useful parameter for predicting PaAF recurrence. METHODS: The study population ...
Parikh Keyur - - 2013
Objective: The ORBIT I trial evaluated the safety and performance of an orbital atherectomy system (OAS) for the treatment of de novo calcified coronary lesions. Background: Severely calcified coronary arteries pose an ongoing treatment challenge. Stent placement in calcified lesions can result in stent under expansion, malapposition, and procedural complications. ...
Otsuji Ken - - 2013
A 71-year-old man underwent intracoronary stent implantation for acute inferior myocardial infarction (MI). Immediately after diagnostic intravascular ultrasound (IVUS) at 8 months' follow-up, an acute occlusion of the sinus node (SN) artery appeared, which developed sinus arrest with junctional escape rhythm. The serum level of high-sensitivity troponin T (TpT) was ...
El Batti Salma - - 2013
Invasive thymoma is a malignant tumor of the anterior mediastinum that could have intravenous affinity associated with a high recurrence rate. This report highlights the need of coronary sinus exploration when intraatrial thymoma recurrence is diagnosed. Surgical resection of invaded coronary sinus can be achieved safely with a good result.
Kantharia Bharat K - - 2013
A 68-year-old woman with a history of dilated non-ischemic cardiomyopathy presented with syncope. The index ECG showed sinus rhythm with left bundle branch block. On telemetry episodes of sinus rhythm with narrower QRS complexes conduced in 2:1 pattern were noted. Invasive electrophysiological study was performed to determine cause of syncope. Normal conduction ...
Jolic Ur E Marc - - 2013
ABSTRACT: BACKGROUND: A growing population of patients lives with severe coronary artery disease not amenable to coronary revascularization and with refractory angina despite optimal medical therapy. Percutaneous reduction of the coronary sinus is an emerging treatment for myocardial ischemia that increases coronary sinus pressure to promote a transcollateral redistribution of ...
Song Sang Hee - - 2013
Anomalous origin of a coronary artery is rare and does not generally lead to myocardial infarction and paroxysmal supraventricular tachycardia (PSVT). We report an uncommon case of anomalous origin of the right coronary artery (RCA) originating from the left sinus of Valsalva with PSVT and myocardial ischemia. A 58-year-old man ...
Dadu Razvan T - - 2013
The ventriculophasic response (VR) refers to shortening of sinus cycle length during heart block when a QRS complex is interposed between 2 P waves. Our purpose was to analyze its relationship to respiratory sinus arrhythmia (SA) and to compare VR in relation to paced versus intrinsic QRS complexes. Patients with ...
Sanchez Mejia Aura - - 2013
We report a rare case of a 5-year-old child who presented with chronic hypoxemia and a normal cardiac examination, and was found to have a persistent left superior vena cava draining directly into the left atrium. The coronary sinus was absent. This case introduces a contradiction to the generally accepted ...
Karabay Can Yücel - - 2013
The aim of this study was to evaluate left atrial deformations using speckle tracking echocardiography for predicting left atrial appendage (LAA) thrombus in patients with suspected cardioembolic stroke who were in normal sinus rhythm. A total of 153 ischemic stroke patients (89 males, 64 females) in sinus rhythm who were ...
Egan Kelly R - - 2013
An asymptomatic 5-year-old girl presented with bradycardia during a routine well-child visit. Further evaluation revealed profound sinus bradycardia, exercise-induced bidirectional ventricular tachycardia, and supraventricular tachycardia. An echocardiogram showed heavy trabeculations in the left ventricular myocardium. This patient's presentation suggested catecholaminergic polymorphic ventricular tachycardia and left ventricular noncompaction. Genetic testing revealed ...
Gilewski Wojciech - - 2013
Atrial fibrillation (AF) is the commonest complex cardiac arrhythmia, affecting approximately 2% of the general population. To describe cardiovascular changes in tissue Doppler echocardiography (TDE) and impedance cardiography (ICG) in AF patients subjected to cardioversion. Forty-one patients (22 males and 19 females) with acute or persistent AF were examined by ...
Eickholt Christian - - 2013
Cardiorespiratory autonomic control is in tight interaction with an intracardiac neural network modulating sinus node function. To gain novel mechanistical insights and to investigate possible novel targets concerning the treatment of inadequate sinus tachycardia, we aimed to characterize functionally and topographically the right atrial neural network modulating sinus node function. ...
Goswami Saileswar - - 2013
A young male patient was shot from a revolver on his left temple from a close range, but surprisingly he survived. On imaging, a complete bullet was found occupying his left maxillary sinus and infratemporal fossa. The bullet, after hitting and breaking the neck of the mandible on the left ...
TargoĊ„ski Ryszard - - 2013
Factors associated with the development of atrial fibrillation (AF) in general population have been described, but it is still unknown whether the same risk factors apply to heart failure (HF) patients. The aim of this study was to identify clinical factors related to various forms of AF in HF patients. ...
Justaniah Almamoon A Department of Radiology, Lahey Hospital & Medical Center, Tufts University School of Medicine, Burlington, Massachusetts, - - 2013
Coronary sinus anomalies are rare. They can be associated with other vascular anomalies such as persistent left superior vena cava or can occur in isolation. We present a rare case of an isolated coronary sinus communication to the left atrium. This anomaly may be clinically relevant in the setting of ...
Xie Ming-Xing - - 2012
OBJECTIVE: To explore the value of transthoracic and right heart contrast echocardiography in the diagnosis of coronary sinus septal defect (CSSD), also known as unroofed coronary sinus. METHODS: The echocardiographic characteristics of 20 patients with CSSD who underwent surgery in our hospital between October 1999 and June 2012 were reviewed ...
El-Eshmawi Ahmed - - 2012
Unroofed coronary sinus (UCS) is a rare cardiac anomaly that results in communication between the coronary sinus and the left atrium. We described an unusual presentation of UCS in a 48-year-old female that was not corrected during an initial secundum ASD repair 22 years ago.
Kim Ki-Hun - - 2012
Background: Prompt diagnosis and management of atrial tachyarrhythmias (ATAs) during catheter ablation of atrial fibrillation (AF) is still challenging. Methods and Results: In 88 patients undergoing catheter ablation of AF, 128 regular ATAs were induced or converted from AF. The coronary sinus activation time (CSAT) around the mitral annulus (MA) was measured ...
Hwang Ho Young - - 2012
BACKGROUND: Duration of anticoagulation therapy is one of the major concerns about management of new-onset atrial fibrillation (AF) after myocardial revascularization. We evaluated whether right and left atrial contractility was restored early after electrical sinus conversion in patients who experienced new-onset AF after off-pump coronary artery bypass grafting. METHODS: From ...
Falcone Adam M - - 2012
A 79-year-old woman underwent transesophageal echocardiography to evaluate the severity of her mitral regurgitation prior to urgent bypass. Evaluation of the right-sided chambers was notable for a mass in the right atrial appendage (RAA). Surgical excision and pathologic examination proved this to be a thrombus. This is the first reported ...
Ge Bei - - 2012
ABSTRACT: BACKGROUND: Radiofrequency catheter ablation (RFCA) has been used for the ablation of premature ventricular contractions (PVCs) or ventricular tachycardia (VT). To date, the mapping and catheter ablation of the arrhythmias originating from the left ventricular outflow tract (LVOT) has not been specified. This study investigates the electrocardiogram (ECG) feature ...
Nardi Paolo - - 2012
Background Left atrial ablation is a surgical standard technique for the treatment of persistent or chronic atrial fibrillation (p-AF and c-AF, respectively).Objective The aim of the study is to evaluate midterm results of left atrial ablation according to modified Maze procedure in patients affected by p-AF or c-AF and concomitant mitral or ...
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