Determination of right ventricular volume and function using multiple
... segmentation and its volume calculated (figures 1 and 2). Two observers measured all the data independently. For the short axis datasets, a consensus was reached before segmentation on which basal slice to include. The volume of added, as well as of deleted slices was analyzed independently and the ...
... segmentation and its volume calculated (figures 1 and 2). Two observers measured all the data independently. For the short axis datasets, a consensus was reached before segmentation on which basal slice to include. The volume of added, as well as of deleted slices was analyzed independently and the ...
Digitalis Toxicity: A Fading but Crucial Complication to Recognize REVIEW
... bigeminy.24 Arrhythmias such as junctional tachycardia, junctional escape rhythm, parasystole, and bidirectional ventricular tachycardia are more likely due to automatic foci triggered by digoxin. On the other hand, atrial flutter, atrial fibrillation, premature ventricular complexes, and ventricula ...
... bigeminy.24 Arrhythmias such as junctional tachycardia, junctional escape rhythm, parasystole, and bidirectional ventricular tachycardia are more likely due to automatic foci triggered by digoxin. On the other hand, atrial flutter, atrial fibrillation, premature ventricular complexes, and ventricula ...
The cone reconstruction of the tricuspid valve in Ebstein`s anomaly
... true tricuspid annulus and the proper subvalvular apparatus are left in place (Figure 1, B). Then the free edge of the posterior leaflet is rotated clockwise and sutured to the anterior leaflet septal edge, forming a new TV resembling a cone (Figure 1, C). An important technical consideration is man ...
... true tricuspid annulus and the proper subvalvular apparatus are left in place (Figure 1, B). Then the free edge of the posterior leaflet is rotated clockwise and sutured to the anterior leaflet septal edge, forming a new TV resembling a cone (Figure 1, C). An important technical consideration is man ...
Diagnosis of Acute Myocardial Infarction
... For purposes of regional wall motion analysis, the ASE has recommended a 16-segment model or, optionally, a 17-segment model with an addition of the apical cap. A scoring system for grading wall motion has been developed depending upon the appearance on echocardiography and is shown in Table 3. On t ...
... For purposes of regional wall motion analysis, the ASE has recommended a 16-segment model or, optionally, a 17-segment model with an addition of the apical cap. A scoring system for grading wall motion has been developed depending upon the appearance on echocardiography and is shown in Table 3. On t ...
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... the left atrial aneurysm related to pericardial defect. Aneurysm or pseudoaneurysm arising from the left atrium or the left atrial appendage is a rare cause of atrial arrhythmia in childhood. In our patient, mitral insufficiency was related to compression of aneurysm and it disappeared after surgica ...
... the left atrial aneurysm related to pericardial defect. Aneurysm or pseudoaneurysm arising from the left atrium or the left atrial appendage is a rare cause of atrial arrhythmia in childhood. In our patient, mitral insufficiency was related to compression of aneurysm and it disappeared after surgica ...
... fragmentation, the more likely that daytime somnolence will be reported. As a consequence of arousal, muscle tone, heart rate, blood pressure and ventilation will increase. Hyperventilation following an apnoea will usually restore normal blood gases. Patients with severe OSA, but also those with par ...
Syncope in patients with structural heart disease
... Syncope is a common condition and the differential diagnosis is extensive. It has been reported that the frequency of syncope amongst users of emergency departments in Europe is approximately 1% [1, 2]. The causes of syncope are frequently benign, but can occasionally be due to a potentially life-th ...
... Syncope is a common condition and the differential diagnosis is extensive. It has been reported that the frequency of syncope amongst users of emergency departments in Europe is approximately 1% [1, 2]. The causes of syncope are frequently benign, but can occasionally be due to a potentially life-th ...
Average T-wave alternans activity in ambulatory ECG records
... a TWA⫹ outcome than patients with narrow QRS (ⱕ120 ms) (29.9% vs 19.4%; p ⫽ .002). However, IAA was not significantly different in wide vs narrow QRS patients: 3.44 ⫾ 1.45 V vs 3.16 ⫾ 2.44 V (p ⫽ .085). Survival rate was significantly higher in the TWA– group for primary and secondary end points ( ...
... a TWA⫹ outcome than patients with narrow QRS (ⱕ120 ms) (29.9% vs 19.4%; p ⫽ .002). However, IAA was not significantly different in wide vs narrow QRS patients: 3.44 ⫾ 1.45 V vs 3.16 ⫾ 2.44 V (p ⫽ .085). Survival rate was significantly higher in the TWA– group for primary and secondary end points ( ...
Relation of tissue Doppler derived myocardial velocities to
... Kesavan Shan, MD,* Roger J. Bick, PHD,‡ Brian J. Poindexter, MSC,‡ Sarah Shimoni, MD,* George V. Letsou, MD,† Michael J. Reardon, MD,† Jimmy F. Howell, MD,† ...
... Kesavan Shan, MD,* Roger J. Bick, PHD,‡ Brian J. Poindexter, MSC,‡ Sarah Shimoni, MD,* George V. Letsou, MD,† Michael J. Reardon, MD,† Jimmy F. Howell, MD,† ...
Device Closure of Atrial Septal Defect in Patients of Age More than
... Background: Transcatheter closure of atrial septal defect (ASD) is an established procedure in children and young adults, but the benefit of this procedure in older patients is still controversial. This study was performed to evaluate the immediate and intermediate outcome of transcatheter closure o ...
... Background: Transcatheter closure of atrial septal defect (ASD) is an established procedure in children and young adults, but the benefit of this procedure in older patients is still controversial. This study was performed to evaluate the immediate and intermediate outcome of transcatheter closure o ...
Disorders of the Cardiovascular System
... The patient relates that he must use two or three pillows in order to have a restful night. Orthopnea is often associated with congestive heart failure, but may also be associated with severe lung disease. The fatigue associated with the exertion of breathing seems to be less when dyspnea is due to ...
... The patient relates that he must use two or three pillows in order to have a restful night. Orthopnea is often associated with congestive heart failure, but may also be associated with severe lung disease. The fatigue associated with the exertion of breathing seems to be less when dyspnea is due to ...
Digitalis Toxicity: A Fading but Crucial Complication to Recognize
... bigeminy.24 Arrhythmias such as junctional tachycardia, junctional escape rhythm, parasystole, and bidirectional ventricular tachycardia are more likely due to automatic foci triggered by digoxin. On the other hand, atrial flutter, atrial fibrillation, premature ventricular complexes, and ventricula ...
... bigeminy.24 Arrhythmias such as junctional tachycardia, junctional escape rhythm, parasystole, and bidirectional ventricular tachycardia are more likely due to automatic foci triggered by digoxin. On the other hand, atrial flutter, atrial fibrillation, premature ventricular complexes, and ventricula ...
Human cardiac high-energy phosphate metabolite concentrations
... failure or other dysfunction (6, 9). In this picture, the mere presence of metabolite in a region of tissue is indicative of living or viable cells. Cell loss through infarction will reduce the metabolite concentration, especially ATP, when it is measured as a regional average (9). Evidence for redu ...
... failure or other dysfunction (6, 9). In this picture, the mere presence of metabolite in a region of tissue is indicative of living or viable cells. Cell loss through infarction will reduce the metabolite concentration, especially ATP, when it is measured as a regional average (9). Evidence for redu ...
Green tea extract catechin improves internal cardiac muscle
... Background: Diastolic dysfunction refers to an impaired relaxation and an abnormality in a heart’s filling during diastole while left ventricular systolic function is preserved. Diastolic dysfunction is commonly observed in patients with primary hypertension, diabetes and cardiomyopathies such as hy ...
... Background: Diastolic dysfunction refers to an impaired relaxation and an abnormality in a heart’s filling during diastole while left ventricular systolic function is preserved. Diastolic dysfunction is commonly observed in patients with primary hypertension, diabetes and cardiomyopathies such as hy ...
Secondary Cardiac Pleomorphic Rhabdomyosarcoma – A
... rhabdomyosarcoma until 1995 [16], [17]. Myf4, a skeletal musclespecific myogenin, has only been studied on four cases of PRMS in the literature [17]. Metastatic heart involvement is gaining increased attention. It has been recognized that heart metastases are more common (at least 2% of all the diss ...
... rhabdomyosarcoma until 1995 [16], [17]. Myf4, a skeletal musclespecific myogenin, has only been studied on four cases of PRMS in the literature [17]. Metastatic heart involvement is gaining increased attention. It has been recognized that heart metastases are more common (at least 2% of all the diss ...
Cardiac patterning and morphogenesis in zebrafish
... dispensable for nkx2.5 induction but essential for myocardial differentiation (Yelon et al., 2000). hand2 is expressed in a broad domain of the ALPM, and mutation of the hands off/hand2 locus results in a dramatic reduction of differentiated myocardium, especially ventricular myocardium, without aff ...
... dispensable for nkx2.5 induction but essential for myocardial differentiation (Yelon et al., 2000). hand2 is expressed in a broad domain of the ALPM, and mutation of the hands off/hand2 locus results in a dramatic reduction of differentiated myocardium, especially ventricular myocardium, without aff ...
2012 Guidelines of the Taiwan Society of Cardiology (TSOC) for the
... cause of symptoms. This may play an important role especially in primary care. High levels of natriuretic peptides despite optimal treatment indicate a poor prognosis. B-type natriuretic peptide (BNP) and N-terminal pro B-type natriuretic peptide (NT-proBNP) measurements were introduced as tools for ...
... cause of symptoms. This may play an important role especially in primary care. High levels of natriuretic peptides despite optimal treatment indicate a poor prognosis. B-type natriuretic peptide (BNP) and N-terminal pro B-type natriuretic peptide (NT-proBNP) measurements were introduced as tools for ...
ATRIOVENTRICULAR BLOCKS AND CARDIAC PACEMAKERS
... CARDIAC PACING PACING MODES Most pacemakers encountered are: AAIR – Useful for sinus node dysfunction with intact AV node VVIR – Useful for chronically ineffective atria (AF, AFlutter) DDD – Most common. Preserves AV synchrony Reduces risk of AF, reduces signs/symptoms HF, improves QOL ...
... CARDIAC PACING PACING MODES Most pacemakers encountered are: AAIR – Useful for sinus node dysfunction with intact AV node VVIR – Useful for chronically ineffective atria (AF, AFlutter) DDD – Most common. Preserves AV synchrony Reduces risk of AF, reduces signs/symptoms HF, improves QOL ...
AED Implementation Guide - CPR
... reopened quickly, the part of the heart normally nourished by that artery begins to die. Symptoms of a heart attack may be immediate and may include intense discomfort in the chest or other ares of the upper body, shortness of breath, cold sweats, and/or nausea/vomiting. More often, though, symptoms ...
... reopened quickly, the part of the heart normally nourished by that artery begins to die. Symptoms of a heart attack may be immediate and may include intense discomfort in the chest or other ares of the upper body, shortness of breath, cold sweats, and/or nausea/vomiting. More often, though, symptoms ...
Look4MySounds - Estudo Geral
... significantly improve efficiency of healthcare services, not only reducing overall costs but also improving patients’ quality of life. *2+ Most devices for cardiac remote monitoring are based on ECG, however, as opposed to cardiac auscultation, it doesn’t provide information on heart valves or hemod ...
... significantly improve efficiency of healthcare services, not only reducing overall costs but also improving patients’ quality of life. *2+ Most devices for cardiac remote monitoring are based on ECG, however, as opposed to cardiac auscultation, it doesn’t provide information on heart valves or hemod ...
Heart failure and PAH
... from the SR through the ryanodine receptor (RyR, see fig. e1)69. Intracellular Ca2+ binds to troponin C within the myofilaments, which initiates contraction. Subsequent relaxation depends on dissociation of Ca2+ from troponin C and Ca2+ reuptake by the SR through a Ca2+-ATPase (SERCA), interacting w ...
... from the SR through the ryanodine receptor (RyR, see fig. e1)69. Intracellular Ca2+ binds to troponin C within the myofilaments, which initiates contraction. Subsequent relaxation depends on dissociation of Ca2+ from troponin C and Ca2+ reuptake by the SR through a Ca2+-ATPase (SERCA), interacting w ...
the surgical treatment of the tetralogy of fallot
... From the Departments of Surgery and Medicine, University of Capetown, the Cardiac Clinic, Groote Schuur Hospital, and the Council for Scientific and Industriai Research Cardiopulmonary Group ...
... From the Departments of Surgery and Medicine, University of Capetown, the Cardiac Clinic, Groote Schuur Hospital, and the Council for Scientific and Industriai Research Cardiopulmonary Group ...
PDF - Circulation: Heart Failure
... Early disease with ATTRmt may be minimally symptomatic, especially compared with AL amyloidosis. Patients may complain of mild exercise intolerance or manifest arrhythmias. Clinical and imaging findings may be attributed to other causes of left ventricular hypertrophy and delay diagnosis, whereas mo ...
... Early disease with ATTRmt may be minimally symptomatic, especially compared with AL amyloidosis. Patients may complain of mild exercise intolerance or manifest arrhythmias. Clinical and imaging findings may be attributed to other causes of left ventricular hypertrophy and delay diagnosis, whereas mo ...
VENTRICULAR SEPTAL DEFECT SIMULATING PATENT DUCTUS
... The case reported below with a high ventricular septal defect just below the aortic valve, complicated by aortic regurgitation from distortion of an adjoining valve cusp, provides another example. This combination was described by Laubry and Pezzi (1921) and Laubry et al. (1933). In describing Eisen ...
... The case reported below with a high ventricular septal defect just below the aortic valve, complicated by aortic regurgitation from distortion of an adjoining valve cusp, provides another example. This combination was described by Laubry and Pezzi (1921) and Laubry et al. (1933). In describing Eisen ...
ACC/AHA Guidelines for Ambulatory - Doctors
... in clinical decision making by describing a range of generally acceptable approaches for the diagnosis, management, or prevention of specific diseases or conditions. These guidelines attempt to define practices that meet the needs of most patients in most circumstances. The ultimate judgment regardi ...
... in clinical decision making by describing a range of generally acceptable approaches for the diagnosis, management, or prevention of specific diseases or conditions. These guidelines attempt to define practices that meet the needs of most patients in most circumstances. The ultimate judgment regardi ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.