Left Ventricular Ejection Fraction (EF) of 55% as
... >50%. We analyzed data from 100 patients who underwent follow-up with echocardiography at least 1 year after discharge. The remaining 179 patients were not enrolled in the present investigation: 15 patients died in the hospital during the emergency admission, 55 patients died within 1 year of discha ...
... >50%. We analyzed data from 100 patients who underwent follow-up with echocardiography at least 1 year after discharge. The remaining 179 patients were not enrolled in the present investigation: 15 patients died in the hospital during the emergency admission, 55 patients died within 1 year of discha ...
Active myocyte shortening during the `isovolumetric relaxation
... [5,4,9]. However, the existence of such a contracting element is counterintuitive in the sense that its contracting action (like any contracting element) should only result in the shortening of some linear dimension and subsequently in an increase of pressure or decrease of volume bounded by such co ...
... [5,4,9]. However, the existence of such a contracting element is counterintuitive in the sense that its contracting action (like any contracting element) should only result in the shortening of some linear dimension and subsequently in an increase of pressure or decrease of volume bounded by such co ...
Diagnosis and Treatment of Bicuspid Aortic Valve Disease
... cases with aortic valve disease. Transthoracic echocardiography (TTE) is the gold standard for its diagnosis (Figure 1a). The diagnosis depends on finding two leaflets and two commissures on short-axis cardiac images. Features such as eccentric valve closure and one cooptation line support the diagn ...
... cases with aortic valve disease. Transthoracic echocardiography (TTE) is the gold standard for its diagnosis (Figure 1a). The diagnosis depends on finding two leaflets and two commissures on short-axis cardiac images. Features such as eccentric valve closure and one cooptation line support the diagn ...
pericardial effusions by echocardiography - Heart
... to the aortic root and left atrium (Fig. 2A). Only a narrow echo-free space, wider in systole than in diastole, is visualised between the ventricular posterior wall and parietal pericardium at mid left ventricular level. This echo-free space widens considerably (to about 1-5 cm) behind the basal lef ...
... to the aortic root and left atrium (Fig. 2A). Only a narrow echo-free space, wider in systole than in diastole, is visualised between the ventricular posterior wall and parietal pericardium at mid left ventricular level. This echo-free space widens considerably (to about 1-5 cm) behind the basal lef ...
A ngiographic Study of Normal Coronary A rteries as First
... Electrical impulses cause heart contraction. These electrical signals begin in the sinoatrial node which is located at the top of the right atrium the SA node sometimes called " heart natural pacemaker." An electrical impulse from this natural pacemaker travels through the muscle fibers of the atria ...
... Electrical impulses cause heart contraction. These electrical signals begin in the sinoatrial node which is located at the top of the right atrium the SA node sometimes called " heart natural pacemaker." An electrical impulse from this natural pacemaker travels through the muscle fibers of the atria ...
DIFFERENTIAL DIAGNOSIS AND TREATMENT EDEMA.TACTICS GP.
... algorithm is to make it cumbersome and non-functional.Factors contributing to the development of edema, are:Reduction of tissue pressure in the connective tissue collagen depletion with increasing its looseness, for example, with the release of hyaluronidase, which is observed Ave inflammatory and t ...
... algorithm is to make it cumbersome and non-functional.Factors contributing to the development of edema, are:Reduction of tissue pressure in the connective tissue collagen depletion with increasing its looseness, for example, with the release of hyaluronidase, which is observed Ave inflammatory and t ...
pdf 12 MB - Cardio Symposium 2011
... He pioneered the use of plasma BNP to identify heart failure patients and the use of aldosterone blockers to reduce their mortality. Another research interest is in allopurinol and he has recently shown it to have antianginal oxygen sparing effects. He is also using cardiac MRI to assess novel ways ...
... He pioneered the use of plasma BNP to identify heart failure patients and the use of aldosterone blockers to reduce their mortality. Another research interest is in allopurinol and he has recently shown it to have antianginal oxygen sparing effects. He is also using cardiac MRI to assess novel ways ...
Endocarditis
... move with the leaflet but in a more chaotic (‘oscillating’) manner. It is common for a vegetation to prolapse through the valve as it opens. Vegetations vary in size, often being just a few mm in diameter but sometimes reaching 2–3 cm. Vegetations resulting from fungal infections (e.g. Candida, Aspe ...
... move with the leaflet but in a more chaotic (‘oscillating’) manner. It is common for a vegetation to prolapse through the valve as it opens. Vegetations vary in size, often being just a few mm in diameter but sometimes reaching 2–3 cm. Vegetations resulting from fungal infections (e.g. Candida, Aspe ...
Cost-effectiveness of implantable cardiac devices in patients with
... issued by HTA organisations such as the National Institute for Health and Care Excellence (NICE)13 14 is based on a subset of these parameters. The great majority of published ICD/CRT economic evaluations, however, including those informing NICE decisions, have been based on data or populations from ...
... issued by HTA organisations such as the National Institute for Health and Care Excellence (NICE)13 14 is based on a subset of these parameters. The great majority of published ICD/CRT economic evaluations, however, including those informing NICE decisions, have been based on data or populations from ...
GK Mechanical Heart Valve GK Mechanical Heart Valve
... placed at the lower intercostal position, sutured incisions and closed thoracic cavity in sequence. 1.5 Postoperative Care After closure of thoracic cavity, breathing machine was used for mechanical ventilation. After the removal of endotracheal intubation, the animals changed into standing position ...
... placed at the lower intercostal position, sutured incisions and closed thoracic cavity in sequence. 1.5 Postoperative Care After closure of thoracic cavity, breathing machine was used for mechanical ventilation. After the removal of endotracheal intubation, the animals changed into standing position ...
Do clinically relevant transthoracic defibrillation energies cause
... arrhythmia varies. Unlike internal defibrillators, which are tested at implantation, efficacy of an external defibrillator is determined only once, when it is most needed. This review discusses shock damage and dysfunction caused by monophasic waveforms as well as biphasic waveforms. Evidence is pre ...
... arrhythmia varies. Unlike internal defibrillators, which are tested at implantation, efficacy of an external defibrillator is determined only once, when it is most needed. This review discusses shock damage and dysfunction caused by monophasic waveforms as well as biphasic waveforms. Evidence is pre ...
Atrial Fibrillation: Diagnosis and Treatment
... Atrial fibrillation is the most common cardiac arrhythmia. It impairs cardiac function and increases the risk of stroke. The incidence of atrial fibrillation increases with age. Key treatment issues include deciding when to restore normal sinus rhythm, when to control rate only, and how to prevent t ...
... Atrial fibrillation is the most common cardiac arrhythmia. It impairs cardiac function and increases the risk of stroke. The incidence of atrial fibrillation increases with age. Key treatment issues include deciding when to restore normal sinus rhythm, when to control rate only, and how to prevent t ...
Anatomical variations of the coronary arteries: I. The most frequent
... 1983). The bifurcation of the anterior interventricular artery should be distinguished from cases of voluminous diagonal arteries, which course in parallel to the anterior interventricular artery (Figure 7), wrongly described as a bifurcation by some authors (James 1961, Paulin 1964, Baroldi and Sco ...
... 1983). The bifurcation of the anterior interventricular artery should be distinguished from cases of voluminous diagonal arteries, which course in parallel to the anterior interventricular artery (Figure 7), wrongly described as a bifurcation by some authors (James 1961, Paulin 1964, Baroldi and Sco ...
Cold acclimation alters the connective tissue content of the zebrafish
... was not expected, as other fish that remain active during cold acclimation demonstrate cardiac hypertrophy (Klaiman et al., 2011). We have recently demonstrated that cold-induced cardiac hypertrophy in the trout is due to an increase in the spongy myocardium (Klaiman et al., 2011). Spongy myocardium ...
... was not expected, as other fish that remain active during cold acclimation demonstrate cardiac hypertrophy (Klaiman et al., 2011). We have recently demonstrated that cold-induced cardiac hypertrophy in the trout is due to an increase in the spongy myocardium (Klaiman et al., 2011). Spongy myocardium ...
Congestive heart failure
... Systole - ventricles begin to contract, valves close Systole - ventricles contract, aortic and pulmonary valves open, blood to aorta Diastole - ventricles empty, valves close Elsevier items and derived items © 2009 by Saunders, an imprint of Elsevier Inc. ...
... Systole - ventricles begin to contract, valves close Systole - ventricles contract, aortic and pulmonary valves open, blood to aorta Diastole - ventricles empty, valves close Elsevier items and derived items © 2009 by Saunders, an imprint of Elsevier Inc. ...
Prosthetic Heart Valves in the Aortic Position: A Review Hadi
... normal conditions, there is absolutely no contribution from the neural system or any external regulatory mechanisms to stimulate the regular cardiac muscle. In fact, the root of this rhythmic mechanism is in the cardiac muscle. This originates during the cardiac development in the embryo long before ...
... normal conditions, there is absolutely no contribution from the neural system or any external regulatory mechanisms to stimulate the regular cardiac muscle. In fact, the root of this rhythmic mechanism is in the cardiac muscle. This originates during the cardiac development in the embryo long before ...
as a PDF
... (Fig. 1), and then summing their lengths in 10” intervals. The expression of values as percentages enabled a meaningful comparison of the different regions to be made. This method is technically simple and the results are essentially the same as direct measurements on individual skeletonized trabecu ...
... (Fig. 1), and then summing their lengths in 10” intervals. The expression of values as percentages enabled a meaningful comparison of the different regions to be made. This method is technically simple and the results are essentially the same as direct measurements on individual skeletonized trabecu ...
Pacemakers - British Heart Foundation
... Heart block is when there is a problem with the AV node, and there is a delay or block in the electrical impulses travelling between the atria (the top two chambers of the heart) and the ventricles (the bottom two chambers). There are many causes of heart block, but it is commonly caused by ageing, ...
... Heart block is when there is a problem with the AV node, and there is a delay or block in the electrical impulses travelling between the atria (the top two chambers of the heart) and the ventricles (the bottom two chambers). There are many causes of heart block, but it is commonly caused by ageing, ...
1 AS FILED WITH THE SECURITIES AND EXCHANGE
... graft applications. The Company's first product, the Thoratec Ventricular Assist Device System (the "VAD System"), is being marketed in the U.S. and internationally for use as a bridge to heart transplant and is currently the only device approved by the U.S. Food and Drug Administration (the "FDA") ...
... graft applications. The Company's first product, the Thoratec Ventricular Assist Device System (the "VAD System"), is being marketed in the U.S. and internationally for use as a bridge to heart transplant and is currently the only device approved by the U.S. Food and Drug Administration (the "FDA") ...
A clinical approach to the assessment of left ventricular diastolic
... filling pressures by mitral valve inflow velocities appears to be accurate only in those patients with systolic dysfunction, as patients with normal systolic function show wide scatter of filling pressures.4 13 This is related to the progression of disease that occurs, so that in an advanced state o ...
... filling pressures by mitral valve inflow velocities appears to be accurate only in those patients with systolic dysfunction, as patients with normal systolic function show wide scatter of filling pressures.4 13 This is related to the progression of disease that occurs, so that in an advanced state o ...
bYTEBoss Ventricular arrhythmias EP overview Medtronic
... outflow tract • Find the electrograms that precede the onset of the QRS complex during tachycardia • This area identifies the site of earliest activation, and possibly the “site of origin” of the arrhythmia ...
... outflow tract • Find the electrograms that precede the onset of the QRS complex during tachycardia • This area identifies the site of earliest activation, and possibly the “site of origin” of the arrhythmia ...
Three-dimensional alignment of the aggregated myocytes in the
... experimental groups. Immediately prior to euthenasia, fractional shortening was obtained in conscious mice from transthoracic echocardiograms (Acuson, Sonoma Health Products. Imaging was performed by M-mode at the midventricular level. LV, left ventricle. *P value ⬍0.05 was considered significant. ...
... experimental groups. Immediately prior to euthenasia, fractional shortening was obtained in conscious mice from transthoracic echocardiograms (Acuson, Sonoma Health Products. Imaging was performed by M-mode at the midventricular level. LV, left ventricle. *P value ⬍0.05 was considered significant. ...
Coronary tortuosity and its role in myocardial ischemia in patients
... two models of tortuous anterior descending arteries of different patients, and reconstructed the arteries, in a three-dimensional model, without the presence of tortuosity. After that, simulations of rest and exercise of the models were carried out, in appropriate conditions, and it was verified tha ...
... two models of tortuous anterior descending arteries of different patients, and reconstructed the arteries, in a three-dimensional model, without the presence of tortuosity. After that, simulations of rest and exercise of the models were carried out, in appropriate conditions, and it was verified tha ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.