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Cotter Paul E - - 2011
Ischemic stroke in younger people is common, and often remains unexplained. There is a well-documented association between unexplained stroke in younger people, and the presence of a patent foramen ovale. Therefore, in the absence of a clear cause of stroke, the heart is often assessed in detail for such lower ...
Thomas Collins R R - - 2012
This study aimed to identify the anatomic and pathologic structural cardiac abnormalities in conjoined twins and to focus on those that have prevented the successful separation of conjoined hearts. A retrospective review was undertaken to examine consecutive cases of thoracopagus conjoined twins with conjoined hearts evaluated at The Children's Hospital ...
Stankovic Ivan - - 2011
BACKGROUND: Wellens syndrome refers to a distinct electrocardiographic pattern of deeply inverted or biphasic T waves in the anterior precordial leads, in the presence of critical proximal stenosis of the left anterior descending coronary artery (LAD). The natural history of the syndrome is an extensive myocardial infarction within weeks of ...
Ruano Pérez R - - 2012
To determine the clinical utility of the gated myocardial perfusion SPECT to detect silent ischemia in asymptomatic diabetic patients without previous coronary events and to evaluate the prognosis of this population. A retrospective study of 56 asymptomatic diabetics referred for a gated myocardial perfusion SPECT for diagnosis of ischemic disease ...
Al-Zaiti Salah S - - 2011
Altered ventricular repolarization and cardiovascular mortality are closely correlated, and recent novel findings show that a distorted T wave loop morphology is also strongly correlated with subsequent onset of myocardial infarction among patients with stable angina. Therefore, we hypothesized that an abnormal T wave complexity ratio (CR) can indicate vulnerability ...
Wen Zhu-Zhi - - 2011
OBJECTIVES: The study aimed to investigate the predictive value of the combination of high-sensitivity C-reactive protein (hs-CRP) and apolipoprotein B (apoB)/apoA-1 ratio for the outcomes of coronary angiography (CAG), echocardiography and oral glucose tolerance tests (OGTTs). DESIGN AND METHODS: Hs-CRP, apoB, apoA-1, and the profiles of CAG, echocardiography and OGTTs ...
Du Wenhua - - 2011
We sought to investigate the role of two-dimensional stress echocardiography in the early assessment of myocardial contusion. For this purpose, 12 dogs, weighing 11.36 ± 1.50 kg, were selected and the myocardial contusion was experimentally induced. Two-dimensional dobutamine stress echocardiography (DSE) was used to detect abnormal myocardial motions segments at time phases of ...
Regueiro Ander - - 2011
BACKGROUND: Chagas' disease is becoming a public health problem in Europe because of migratory movements. Cardiac magnetic resonance (CMR) has emerged as a non-invasive tool to assess cardiac tissue characteristics. There is scarce data available on CMR in patients with Chagas' disease. OBJECTIVE: To describe CMR findings in patients with ...
Wolff Gregory A - - 2011
Physiologic changes incurred by pregnancy can cause severe decompensation in the parturient with underlying cardiac disease. The result is increased morbidity and mortality for both mother and child. Appropriate anesthetic management can significantly impact these outcomes. This review systematically presents the pathophysiology, peripartum risk, and anesthetic management in the puerperium ...
Bersani Iliana - - 2011
We present a five-year-old boy with an unremarkable medical history who was incidentally found to have bradycardia and electrocardiographic signs of right axial deviation. Initial echocardiogram showed left displacement of the cardiac apex with slight enlargement of the right ventricle, while frontal chest radiograph showed a lucent area between the ...
Leo Troy - - 2011
: To demonstrate the prevalence and patterns of ST elevation (STE) in ambulatory individuals and athletes and compare the clinical outcomes. : Retrospective cohort study. ST elevation was measured by computer algorithm and defined as ≥0.1 mV at the end of the QRS complex. Elevation was confirmed, and J waves ...
Fonfara S - - 2011
Leptin belongs to the group of adipokines and has recently attracted attention because of its effects on the cardiovascular system. Increased leptin concentrations are reported in obese dogs but its role in cardiac disease (CD) is not known. Therefore, we investigated leptin expression in blood samples from dogs with congestive ...
Iijima Kenichi - - 2011
Cardiac magnetic resonance demonstrated myocardial damage within the left ventricle (LV) in a patient with cardiac sarcoidosis. During inflammation, ST-segment elevation was observed in her ECG. The ST-segment deviation was attenuated following disappearance of the abnormal Gallium-67 uptake in the LV, suggesting transmural LV voltage gradient was a cause of ...
Fang Xiangshao - - 2011
OBJECTIVES: Though there is evidence to implicate that the mitochondrion may play an important role in the development of postresuscitation myocardial dysfunction, limited data are available regarding the ultrastructural alterations of the mitochondria, mitochondrial energy-producing ability, and their relationship to postresuscitation myocardial dysfunction. This study was designed to determine whether ...
Behaghel Albin - - 2011
Hypocalcaemia is a rare cause of reversible heart failure. We reported a 76-year-old woman who had a severe systolic heart failure. She had severe hypocalcaemia due to hypoparathyroidism after thyroidectomy. Echocardiography showed a dilated left ventricle with a depressed left ventricular ejection fraction. Serum calcium level was low without other ...
Díaz Infante Ernesto E Unidad de Arritmias, Servicio de Cardiología, Hospital Universitario Virgen Macarena, Sevilla, - - 2011
Premature ventricular contractions originating in the right ventricular outflow tract may respond poorly to pharmacological treatment, and ablation using conventional fluoroscopically-guided systems may be complicated by the difficulty in inducing arrhythmias. We describe the use of a non-contact mapping system to ablate difficult-to-induce premature ventricular contractions originating in the right ...
López-Alvarez Jordi - - 2011
A 12-week-old male Golden Retriever was presented with signs of right-sided congestive heart failure and a grade V/VI left craniosternal systolic murmur. Echocardiography identified a double-chambered right ventricle and dilated coronary sinus (CS) running into an inter-atrial chamber. This was confirmed to be an imperforate cor triatriatum dexter (CTD) by ...
Matyal Robina - - 2011
Assessment of diastolic function should be a component of a comprehensive perioperative transesophageal echocardiographic examination. Abnormal diastolic function exists in >50% of patients presenting for cardiac and high-risk noncardiac surgery, and has been shown to be an independent predictor of adverse postoperative outcome. Normalcy of systolic function in 50% of ...
Kwofie Michael A - - 2011
T-wave alternans (TWA) has been investigated as a marker for susceptibility to lethal ventricular arrhythmia. In this article, we studied intracardiac TWA and ischemia as predictors of spontaneous ventricular tachycardia (VT) or ventricular fibrillation (VF) in a canine model of coronary artery occlusion (CAO). Anesthetized, open-chest dogs were studied. Electrograms ...
Wakili Reza - - 2011
Atrial fibrillation (AF) is an extremely common cardiac rhythm disorder that causes substantial morbidity and contributes to mortality. The mechanisms underlying AF are complex, involving both increased spontaneous ectopic firing of atrial cells and impulse reentry through atrial tissue. Over the past ten years, there has been enormous progress in ...
Borlaug Barry A - - 2011
Nearly half of all patients who have heart failure have preserved ejection fraction (HFpEF). Patients who have HFpEF tend to be older, female, and hypertensive, and characteristically display increased ventricular and arterial stiffening. In this article, we discuss the pathophysiology of abnormal ventriculoarterial stiffening and how it affects ventricular function, ...
Fujita Shuhei - - 2011
This report describes a 2-year-old girl with congenitally corrected transposition of the great arteries (ccTGA) who presented with transient complete atrioventricular (AV) block after a mild chest blow. Running around the house with her older sister, she fell to the floor. Her sister also fell and landed on her. The ...
Yarbrough William M WM Division of Cardiothoracic Surgery, Department of Medicine, Medical University of South Carolina, Charleston, SC, - - 2012
Aortic valve stenosis is a common cause of left ventricular pressure overload, a pathologic process that elicits myocyte hypertrophy and alterations in extracellular matrix composition, both of which contribute to increases in left ventricular stiffness. However, clinical and animal studies suggest that increased myocardial extracellular matrix fibrillar collagen content occurs ...
Zastrow Arne - - 2011
We report on a patient suffering from chronic anorexia nervosa who in the course of treatment showed elevated high-sensitive troponin T, creatine kinase and most markedly N-terminal pro-brain natriuretic peptide (NT-proBNP). Elevated enzymes improved significantly throughout the course of treatment without cardiac specific medication but exceeded the normal range for ...
Delgado Gabriel A - - 2011
The precise cause of takotsubo cardiomyopathy (TC) remains controversial. Plaque rupture with transient thrombotic occlusion of a transapical left anterior descending coronary artery (LAD) has been advanced as a potential mechanism. To explore this hypothesis, the investigators analyzed data from 11 patients prospectively enrolled in the Rhode Island Takotsubo Cardiomyopathy ...
Summers Matthew R - - 2011
Aims Coronary endothelial dysfunction (ED), by predisposing to abnormal vasomotion, may cause chest pain in individuals with non-obstructed coronary arteries. The aim of this study was to correlate the magnitude of coronary ED with the presence and extent of inducible myocardial ischaemia using body surface electrocardiogram (ECG) mapping in symptomatic ...
Merabet Yasmina - - 2011
Gated radionuclide ventriculography (RNV), combined with inter- and intraventricular dyssynchrony measurement by phase analysis, is able to evidence right and left ventricular mechanical cardiac disorders and may contribute to the diagnosis of arrhythmogenic right ventricular dysplasia (ARVD). Nevertheless, the patients referred for suspicion of ARVD on the basis of symptoms, ...
Tsutsumi Takeshi - - 2011
BACKGROUND: Ventricular late potentials (VLPs) have been known to be a predictor of lethal ventricular arrhythmias (L-VAs); however, detection of other arrhythmogenic signals within the QRS complex remains obscure. OBJECTIVE: The aim of this study was to evaluate whether abnormal intra-QRS high frequency powers (IQHFP) within the QRS complex become ...
Youn Young-Nam - - 2011
BACKGROUND: Left ventricular diastolic dysfunction (DD) causes adverse outcomes after cardiac surgery; however, the effects of DD during off-pump coronary artery bypass grafting (OPCAB) are not well understood. We aimed to assess the influence of DD on early mortality and morbidity of patients undergoing OPCAB. METHODS: This prospective observational study ...
Patel Sandeep M - - 2011
Understanding the precise distribution of the regional wall motion abnormality (RWMA) in apical ballooning syndrome (ABS) is important because the cardiomyopathy can mimic an acute anterior ST-elevation myocardial infarction (STEMI). The aim of the study was to quantify the severity and distribution of RWMA in ABS, compare it to anterior ...
Borges-Cancel William - - 2011
Left ventricular non-compaction cardiomyopathy (LVNC) is a rare disorder characterized by a thick myocardial wall with two distinct layers consisting of compacted and noncompacted myocardium. The major clinical manifestations of LVNC have been described as heart failure, cardiac arrhythmias, and cardioembolic events. In this report we present a case of ...
Owen Mallory - - 2011
Newborns with complex congenital heart defects are at high risk for developing neurological abnormalities. It is important to understand the timing, progression, and extent of these abnormalities to better elucidate their potential impact on neurodevelopment, and their implications for early screening and intervention. This review synthesizes the recent literature describing ...
Shim Chi Young - - 2011
Vascular stiffening of the large arteries is a common feature of human aging. Increased aortic stiffness with age may contribute to pathological changes in the left ventricle and this can induce ventricular stiffening. Vascular-ventricular stiffening combined with abnormal arterial-cardiac interaction is considered an important pathophysiology of heart failure with a ...
Daniele Stefania - - 2011
BACKGROUND: We assessed the prognostic value of coronary flow reserve (CFR) estimated by single-photon emission computed tomography (SPECT) in patients with suspected myocardial ischemia. METHODS AND RESULTS: Myocardial perfusion and CFR were assessed in 106 patients using dipyridamole/rest Tc-99m sestamibi SPECT and follow-up was obtained in 103 (97%) patients. Four ...
Weiner Rory B - - 2011
Background The European Society of Cardiology (ESC) recently published revised criteria for ECG interpretation in the athlete. Objective To examine the performance of the 2010 ESC ECG criteria in a population of athletes undergoing preparticipation cardiovascular disease screening. Methods University athletes (n=508) underwent routine medical history/physical examination and ECG before ...
Aletras Anthony H - - 2011
In hypertrophic cardiomyopathy (HCM), myocardial abnormalities are commonly heterogeneous. Two patterns of late gadolinium enhancement (LGE) have been reported: a bright "confluent" and an intermediate intensity abnormality termed "diffuse," each representing different degrees of myocardial scarring. We used MRI to study the relation between intramural cardiac function and the extent ...
Ahn Byung-Hoon - - 2011
BACKGROUND: There has been no systematic study that carefully investigates the characteristic features of abnormal cervical vestibular-evoked myogenic potential (cVEMP) response associated with the AICA territory infarction. OBJECTIVES: To investigate the frequency, the characteristic patterns of abnormal cVEMP associated with AICA territory infarction, and the crucial site for producing abnormal ...
Mondillo S - - 2011
A 41-year-old male asymptomatic athlete with unremarkable personal and family history of heart disease underwent annual preparticipation screening. No abnormalities were noted on prior testing. On this occasion, a 12-lead electrocardiogram showed diffused and marked repolarization abnormalities. He was therefore referred for echocardiography, which showed moderate asymmetric hypertrophy localized at ...
Psarras Stelios - - 2011
Aims Desmin, the muscle-specific intermediate filament protein, is a major target in dilated cardiomyopathy and heart failure in humans and mice. The hallmarks of desmin-deficient (des(-/-)) mice pathology include pronounced myocardial degeneration, extended fibrosis, and osteopontin (OPN) overexpression. We sought to identify the molecular and cellular events regulating adverse cardiac ...
Silbiger Jeffrey J - - 2011
Discrete subaortic stenosis (DSS) is characterized by the presence of an obstructing membrane in the left ventricular outflow tract (LVOT). Evidence suggests that the formation of DSS represents a fibroproliferative reaction of the endocardium occurring in response to alterations in shear stress caused by geometric abnormalities within the LVOT. The ...
Jacob M J - - 2011
Exercise ECG (TMT) is one of the very common investigations being used in the periodic medical examination of high risk professionals like airline pilots and executives. We have done a retrospective analysis of 152 asymptomatic persons who reported for myocardial perfusion imaging after being found to have positive TMT in ...
Wen Qiang - - 2011
The present study investigated the actions of des-aspartate-angiotensin I (DAA-I) on infarct size and three early inflammatory events in acute myocardial ischemia-reperfusion injury in rats. The rationale was based on earlier findings showing that chronic daily administration of DAA-I attenuated infarct size of ischemic reperfused rat heart, and cardiac hypertrophy ...
Liu Tong - - 2011
The long QT syndrome is an inherited arrhythmogenic disease characterized by prolongation of QT interval, syncope, and sudden cardiac death because of ventricular tachycardia, mainly in the form of Torsades de Pointes. We present an unusual case of prolonged QT interval and cardiac arrest caused by Torsades de Pointes in ...
Ishizu Tomoko - - 2011
The early diagnosis of myocardial ischemia is still challenging. The aim of the present study was to determine whether subendocardial hypokinesis and post-systolic contraction could be early markers of myocardial ischemia. Thirty-one consecutive patients with flow-limiting severe coronary stenosis but without visually abnormal left ventricular wall motion underwent quantitative echocardiography. ...
Yaegashi Takanori - - 2011
A 70-year-old man with a history of food-dependent exercise-induced anaphylaxis (FDEIA) since age 50 was admitted to the emergency department with chest pain and urticaria caused by FDEIA. Coronary angiography revealed total occlusion of the proximal left anterior descending coronary artery. After thrombus aspiration, a bare metal stent was placed ...
Sidek Khairul Azami KA Faculty of Engineering, International Islamic University Malaysia, PO Box 10, 50728 Kuala Lumpur, Malaysia. - - 2011
This paper presents a person identification mechanism in irregular cardiac conditions using ECG signals. A total of 30 subjects were used in the study from three different public ECG databases containing various abnormal heart conditions from the Paroxysmal Atrial Fibrillation Predicition Challenge database (AFPDB), MIT-BIH Supraventricular Arrthymia database (SVDB) and ...
Zuern Christine S - - 2011
Heart rate turbulence (HRT) is the baroreflex-mediated short-term oscillation of cardiac cycle lengths after spontaneous ventricular premature complexes. HRT is composed of a brief heart rate acceleration followed by a gradual heart rate deceleration. In high risk patients after myocardial infarction (MI) HRT is blunted or diminished. Since its first ...
Richard Christian - - 2011
Stress-related cardiomyopathies can be observed in the four following situations: Takotsubo cardiomyopathy or apical ballooning syndrome; acute left ventricular dysfunction associated with subarachnoid hemorrhage; acute left ventricular dysfunction associated with pheochromocytoma and exogenous catecholamine administration; acute left ventricular dysfunction in the critically ill. Cardiac toxicity was mediated more by catecholamines ...
Martis Roshan J RJ Indian Institute of Technology, Kharagpur, India. - - 2011
Electrocardiogram (ECG) is the P-QRS-T wave which indicates the electrical activity of the heart. The subtle changes in the amplitude and duration of the ECG signal depict the cardiac abnormality. It is very difficult to decipher these minute changes by the naked eye. Hence, a computer-aided diagnosis system will help ...
Cadeddu Christian C Department of Cardiovascular and Neurological Sciences, University Hospital of Cagliari, Strada Statale 554, Km 4.500, Monserrato, 09042 Cagliari, - - 2011
A 48-year-old woman was scheduled by our lab to perform a standard dobutamine/atropine stress echocardiogram. During the test, the patient referred to a slight chest discomfort and developed a progressive left ventricle akinesia of all midbasal LV segments, thus mimicking a midbasal ballooning. ECG persisted without significant abnormalities and with ...
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