Evaluation Pulmonary Arterial End-Diastolic Pressure
... may accurately reflect the level of left ventricular EDP, and therefore be useful in the continuous monitoring of left ventricular EDP in acutely ill patients. Accordingly, pulmonary arterial pressure was recorded simultaneously with left ventricular pressure in 24 patients with normal left ventricu ...
... may accurately reflect the level of left ventricular EDP, and therefore be useful in the continuous monitoring of left ventricular EDP in acutely ill patients. Accordingly, pulmonary arterial pressure was recorded simultaneously with left ventricular pressure in 24 patients with normal left ventricu ...
Magnetic Resonance and Computed Tomography Imaging of
... exact prevalence of this condition is not known, but is estimated to be around 1 in 5000. The disease rarely manifests before adolescence and usually presents in the second or third decade of life (1). Affected individuals are often men who have an athletic lifestyle. Presenting symptoms vary from a ...
... exact prevalence of this condition is not known, but is estimated to be around 1 in 5000. The disease rarely manifests before adolescence and usually presents in the second or third decade of life (1). Affected individuals are often men who have an athletic lifestyle. Presenting symptoms vary from a ...
Case-Based Curriculum in Clinical Electrophysiology
... Struck by lightning: A case of nature-induced pre-excited atrial fibrillation. Leiria TL, et al.41 Rare forms of preexcitation: A case study and brief overview of familial forms of preexcitation. Koneru JN, et al.42 Editors’ Perspective: Difficult Accessory Pathways and Ventricular Diseases It is im ...
... Struck by lightning: A case of nature-induced pre-excited atrial fibrillation. Leiria TL, et al.41 Rare forms of preexcitation: A case study and brief overview of familial forms of preexcitation. Koneru JN, et al.42 Editors’ Perspective: Difficult Accessory Pathways and Ventricular Diseases It is im ...
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation
... The New England Journal of Medicine Downloaded from nejm.org at LAC/HLTH SVCS ADMIN on June 29, 2015. For personal use only. No other uses without permission. Copyright © 2010 Massachusetts Medical Society. All rights reserved. ...
... The New England Journal of Medicine Downloaded from nejm.org at LAC/HLTH SVCS ADMIN on June 29, 2015. For personal use only. No other uses without permission. Copyright © 2010 Massachusetts Medical Society. All rights reserved. ...
Cardiac electrophysiology
... atria. Atrial fibrillation is often due to serious underlying medical conditions, and should be evaluated by a physician. It is not typically a medical emergency. Ventricular fibrillation occurs in the ventricles (lower chambers) of the heart; it is always a medical emergency. If left untreated, ven ...
... atria. Atrial fibrillation is often due to serious underlying medical conditions, and should be evaluated by a physician. It is not typically a medical emergency. Ventricular fibrillation occurs in the ventricles (lower chambers) of the heart; it is always a medical emergency. If left untreated, ven ...
Hemodynamic Effects of Heart Rate in Aortic
... Following informed consent, right heart catheterwas performed from the antecubital vein, and the left ventricle was catheterized in retrograde manner from a femoral artery. In six subjects a catheter was placed in the aorta from the opposite femoral artery to permit simultaneous left ventricular and ...
... Following informed consent, right heart catheterwas performed from the antecubital vein, and the left ventricle was catheterized in retrograde manner from a femoral artery. In six subjects a catheter was placed in the aorta from the opposite femoral artery to permit simultaneous left ventricular and ...
Levosimendan in Patients with Left Ventricular
... and with support by a mechanical cardiac assist device but remains associated with short-term mortality that is up to 15 times as high as that seen in cardiac surgical patients without this syndrome.4,7 Unfortunately, most of the available inotropic agents have either known adverse effects or an ina ...
... and with support by a mechanical cardiac assist device but remains associated with short-term mortality that is up to 15 times as high as that seen in cardiac surgical patients without this syndrome.4,7 Unfortunately, most of the available inotropic agents have either known adverse effects or an ina ...
Noninvasive Epicardial and Endocardial Electrocardiographic
... critical to the reentry circuit. If the circuit can be mapped with a combination of activation and entrainment mapping, its exit and isthmus can often be identified [1]. However, with invasive catheter mapping, this is only feasible in a small percentage of VTs that are hemodynamically stable [1]. F ...
... critical to the reentry circuit. If the circuit can be mapped with a combination of activation and entrainment mapping, its exit and isthmus can often be identified [1]. However, with invasive catheter mapping, this is only feasible in a small percentage of VTs that are hemodynamically stable [1]. F ...
Newly Diagnosed Atrial Fibrillation
... regularity of the cardiac cycle, especially when accompanied by short coupling intervals, and rapid heart rates in atrial fibrillation lead to a reduction in diastolic filling, stroke volume, and cardiac output. In a study of patients who were evaluated while in atrial fibrillation and again during ...
... regularity of the cardiac cycle, especially when accompanied by short coupling intervals, and rapid heart rates in atrial fibrillation lead to a reduction in diastolic filling, stroke volume, and cardiac output. In a study of patients who were evaluated while in atrial fibrillation and again during ...
July - Congenital Cardiology Today
... morphologic tricuspid valve, ventricular septal defect, morphologic left ventricular (pulmonary) outflow tract obstruction and complete heart block.8-10 Extensive study of the atrioventricular conduction system in corrected transposition with situs solitus patients by several investigators11-16 dete ...
... morphologic tricuspid valve, ventricular septal defect, morphologic left ventricular (pulmonary) outflow tract obstruction and complete heart block.8-10 Extensive study of the atrioventricular conduction system in corrected transposition with situs solitus patients by several investigators11-16 dete ...
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation
... out an absolute increase of 10 percentage points in the rate of the primary outcome at 2.5 years in the lenient-control group, with a one-sided alpha level of 0.05. Pretrial estimates of the expected event rates were based on the observed event rate in the (lenient) rate-control group of the Rate Co ...
... out an absolute increase of 10 percentage points in the rate of the primary outcome at 2.5 years in the lenient-control group, with a one-sided alpha level of 0.05. Pretrial estimates of the expected event rates were based on the observed event rate in the (lenient) rate-control group of the Rate Co ...
Premature Ventricular Complex-induced Cardiomyopathy
... entirely clear. Early descriptions referred to PVC-induced cardiomyopathy as a tachycardia-mediated cardiomyopathy; however, this explanation is not likely to be valid as many such patients have average or even low heart rates. A more likely explanation is abnormal ventricular activation resulting i ...
... entirely clear. Early descriptions referred to PVC-induced cardiomyopathy as a tachycardia-mediated cardiomyopathy; however, this explanation is not likely to be valid as many such patients have average or even low heart rates. A more likely explanation is abnormal ventricular activation resulting i ...
Paediatric rheumatology Myocardial performance index in active
... Studies reported new imaging modalities, including mean myocardial peak systolic velocity by tissue Doppler imaging or strain imaging that advanced echocardiography method, provided earlier insight into cardiovascular involvements in SLE which significantly associated with enhanced disease activity ...
... Studies reported new imaging modalities, including mean myocardial peak systolic velocity by tissue Doppler imaging or strain imaging that advanced echocardiography method, provided earlier insight into cardiovascular involvements in SLE which significantly associated with enhanced disease activity ...
Implantable Ventricular Assist Devices and Total
... treated with a newer generation HeartWare VAD. This device was smaller than previous versions and implanted within the pericardial space. Patients were followed until transplantation, myocardial recovery, device explant, or death. The median duration of time on the LVAD was 322 days. Nine patients d ...
... treated with a newer generation HeartWare VAD. This device was smaller than previous versions and implanted within the pericardial space. Patients were followed until transplantation, myocardial recovery, device explant, or death. The median duration of time on the LVAD was 322 days. Nine patients d ...
PDF Article
... patients were male and white was the predominant race. Ischemic heart disease was the most common etiology of LV dysfunction. Most patients (85%) were in NYHA functional class I or II at the time of enrollment into the study. Comparison of the subgroup of patients that participated in the SOLVD Tria ...
... patients were male and white was the predominant race. Ischemic heart disease was the most common etiology of LV dysfunction. Most patients (85%) were in NYHA functional class I or II at the time of enrollment into the study. Comparison of the subgroup of patients that participated in the SOLVD Tria ...
Sudden Cardiac Death Syndrome: Age, Gender, Ethnicity, and
... protein, “hot spots” associated with malignant prognosis have been identified, e.g. R403, R719 and R663 in MYH7, R502, D778 in MYBP3, R162 in TNNI3 and R58 in MYL2.45 Of note, mutations in the TNNT2 gene have been reported to be associated with no or mild left ventricular hypertrophy with a high ris ...
... protein, “hot spots” associated with malignant prognosis have been identified, e.g. R403, R719 and R663 in MYH7, R502, D778 in MYBP3, R162 in TNNI3 and R58 in MYL2.45 Of note, mutations in the TNNT2 gene have been reported to be associated with no or mild left ventricular hypertrophy with a high ris ...
Capability of B-Type Natriuretic Peptide (BNP) and Amino
... were done with the indication to evaluate whether cardiac structural disease was present in asymptomatic patients with essential arterial hypertension but without known cardiac structural disease. Echocardiography was unsatisfactory in 3 patients. Thus, 157 patients with complete clinical evaluation ...
... were done with the indication to evaluate whether cardiac structural disease was present in asymptomatic patients with essential arterial hypertension but without known cardiac structural disease. Echocardiography was unsatisfactory in 3 patients. Thus, 157 patients with complete clinical evaluation ...
Failure to prescribe anticoagulation (PDF 377K)
... of left atrial systolic function despite electrical sinus rhythm. It occurs regardless of whether the procedure was electrical, pharmacological or spontaneous cardioversion. The degree of stunning appears to be greater after electrical reversion, but there is no correlation to the amount of energy u ...
... of left atrial systolic function despite electrical sinus rhythm. It occurs regardless of whether the procedure was electrical, pharmacological or spontaneous cardioversion. The degree of stunning appears to be greater after electrical reversion, but there is no correlation to the amount of energy u ...
PDF Article - ScienceDirect
... stimulus artifact and the time of local ventricularactivation at each recording site rather than as the apparent pause between the time of the stimulusartifact and the time of the first evidence of ventricular activation at any site. The intrinsic latency (L I) at each recording site was defined as ...
... stimulus artifact and the time of local ventricularactivation at each recording site rather than as the apparent pause between the time of the stimulusartifact and the time of the first evidence of ventricular activation at any site. The intrinsic latency (L I) at each recording site was defined as ...
Internal atrial cardioversion in atrial fibrillation
... Electrical cardioversion is usually performed using the transthoracic technique with delivery of monophasic shocks at 200360 J and the efficacy results are 61-94%1,2. However as little as 4% of the current from an external shock effectively penetrates cardiac tissue, while the majority follows other ...
... Electrical cardioversion is usually performed using the transthoracic technique with delivery of monophasic shocks at 200360 J and the efficacy results are 61-94%1,2. However as little as 4% of the current from an external shock effectively penetrates cardiac tissue, while the majority follows other ...
Percutaneous Closure of Left Ventricular Pseudoaneurysm
... 36%3–5,7,9,13,14; however, is better than medical treatment, which carries an even higher mortality rate of 48%.7 This study is the first reported series of percutaneous closure of the left ventricular pseudoaneurysm to date. Despite the small number of patients, successful closure with no complicat ...
... 36%3–5,7,9,13,14; however, is better than medical treatment, which carries an even higher mortality rate of 48%.7 This study is the first reported series of percutaneous closure of the left ventricular pseudoaneurysm to date. Despite the small number of patients, successful closure with no complicat ...
Multidimensional Rhythm Disturbances as a Precursor of Sustained
... lthough substantial progress has been made in the understanding of arrhythmia mechanisms and identification of individuals at risk, short-term prediction of the timing of onset of sustained ventricular tachyarrhythmias (VTAs) has lagged, delaying development of preventive treatments.1 Because autono ...
... lthough substantial progress has been made in the understanding of arrhythmia mechanisms and identification of individuals at risk, short-term prediction of the timing of onset of sustained ventricular tachyarrhythmias (VTAs) has lagged, delaying development of preventive treatments.1 Because autono ...
Document
... of trials[16]. Some antiarrhythmics, such as dofetilide, are additionally restricted to prescribers who have completed appropriate educational forums[17]. In one study of 129 patients with AF or flutter, subjects were given 600mg daily of amiodarone for 4 weeks and none of the patients suffered vent ...
... of trials[16]. Some antiarrhythmics, such as dofetilide, are additionally restricted to prescribers who have completed appropriate educational forums[17]. In one study of 129 patients with AF or flutter, subjects were given 600mg daily of amiodarone for 4 weeks and none of the patients suffered vent ...
PDF - Cardiovascular Ultrasound
... Data are given as mean ± SD in absolute values. GLS indicates the global longitudinal strain; GLS-endo, the average value of global longitudinal strain in the endocardial layer at the basal, mid-ventricular and apical levels; GLS-mid, the average value of global longitudinal strain in the mid-myocar ...
... Data are given as mean ± SD in absolute values. GLS indicates the global longitudinal strain; GLS-endo, the average value of global longitudinal strain in the endocardial layer at the basal, mid-ventricular and apical levels; GLS-mid, the average value of global longitudinal strain in the mid-myocar ...
in Congestive Heart Failure
... traditional approach has consisted of increasing the force and velocity of myocardial contraction with inotropic stimulating agents.' More recently afterload reducing drugs have been utilized to enhance cardiac output through lowering of impedance to left ventricular ejection and thereby improving p ...
... traditional approach has consisted of increasing the force and velocity of myocardial contraction with inotropic stimulating agents.' More recently afterload reducing drugs have been utilized to enhance cardiac output through lowering of impedance to left ventricular ejection and thereby improving p ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.