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Pulmonary Hypertension Advances in Hypertension and
... reviewing and editing the manuscripts. As Dr Oudiz points out in his introduction, this issue focuses on the very common but poorly understood problem of pulmonary hypertension due to left heart disease, including reviews examining the relationship between diastolic heart failure and pulmonary hyper ...
... reviewing and editing the manuscripts. As Dr Oudiz points out in his introduction, this issue focuses on the very common but poorly understood problem of pulmonary hypertension due to left heart disease, including reviews examining the relationship between diastolic heart failure and pulmonary hyper ...
Subclinical Atrial Fibrillation and the Risk of Stroke
... no etiologic factor is identified.4,8,9 Subclinical atrial fibrillation is often suspected to be the cause of stroke in these patients.10 However, the prevalence and prognostic value of subclinical atrial fibrillation has been difficult to assess.8,9,11,12 An implanted atrial lead that is in positio ...
... no etiologic factor is identified.4,8,9 Subclinical atrial fibrillation is often suspected to be the cause of stroke in these patients.10 However, the prevalence and prognostic value of subclinical atrial fibrillation has been difficult to assess.8,9,11,12 An implanted atrial lead that is in positio ...
EAE/ASE Recommendations for Image Acquisition and Display
... multiple-beat 3DE imaging. Real-time or live 3DE refers to the acquisition of multiple pyramidal data sets per second in a single heartbeat. Most ultrasound systems have real-time 3DE volume imaging available in the following modes: live 3D narrow volume, live 3D zoomed, live 3D wide angled (full vo ...
... multiple-beat 3DE imaging. Real-time or live 3DE refers to the acquisition of multiple pyramidal data sets per second in a single heartbeat. Most ultrasound systems have real-time 3DE volume imaging available in the following modes: live 3D narrow volume, live 3D zoomed, live 3D wide angled (full vo ...
EAE/ASE recommendations for image acquisition and display using
... computer and transducer technologies permit real-time 3DE acquisition and presentation of cardiac structures from any spatial point of view. The usefulness of 3D echocardiography has been demonstrated in (1) the evaluation of cardiac chamber volumes and mass, which avoids geometric assumptions; (2) ...
... computer and transducer technologies permit real-time 3DE acquisition and presentation of cardiac structures from any spatial point of view. The usefulness of 3D echocardiography has been demonstrated in (1) the evaluation of cardiac chamber volumes and mass, which avoids geometric assumptions; (2) ...
Screening for undiagnosed atrial fibrillation in the community
... detecting it is expanding. Whether this will translate into improved outcomes for patients remains to be proven. Keywords ambulatory ECG, atrial fibrillation, screening, stroke, systemic embolism ...
... detecting it is expanding. Whether this will translate into improved outcomes for patients remains to be proven. Keywords ambulatory ECG, atrial fibrillation, screening, stroke, systemic embolism ...
View Presentation - Society of Thoracic Radiology
... is likely to encounter. Congenital absence most commonly is partial and on the left. Complete congenital absence is rare. This is thought to be related to regression of the left common cardinal vien, which in turn devascularizes the pleuropericardial membrane, resulting in loss of that portion of th ...
... is likely to encounter. Congenital absence most commonly is partial and on the left. Complete congenital absence is rare. This is thought to be related to regression of the left common cardinal vien, which in turn devascularizes the pleuropericardial membrane, resulting in loss of that portion of th ...
Atrial Remodeling and Atrial Fibrillation
... remains sustained for prolonged periods, remains uncertain.24 Figure 5 summarizes the molecular mechanisms that underlie ATR promotion of reentrant AF. ATR abbreviates atrial refractoriness by decreasing APD, primarily by ICaL downregulation5 but also via increased inward-rectifier K⫹ currents such ...
... remains sustained for prolonged periods, remains uncertain.24 Figure 5 summarizes the molecular mechanisms that underlie ATR promotion of reentrant AF. ATR abbreviates atrial refractoriness by decreasing APD, primarily by ICaL downregulation5 but also via increased inward-rectifier K⫹ currents such ...
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... People with atrial fibrillation may be asymptomatic or experience symptoms such as palpitations, dizziness, breathlessness and fatigue (NHS Choices 2015). Atrial fibrillation can be classified as paroxysmal (an intermittent episode of atrial fibrillation which spontaneously terminates within 7 days, ...
... People with atrial fibrillation may be asymptomatic or experience symptoms such as palpitations, dizziness, breathlessness and fatigue (NHS Choices 2015). Atrial fibrillation can be classified as paroxysmal (an intermittent episode of atrial fibrillation which spontaneously terminates within 7 days, ...
PDF Full-text
... In human, the embryonic heart chamber the sinus venosus remodels during development to the sinus venarum, and a subpopulation thereof harbors the dominant pacemaker of the heart, which is of paramount importance for initiating the heart beat [1–4]. Sinus venarum myocardium may also give rise to arrh ...
... In human, the embryonic heart chamber the sinus venosus remodels during development to the sinus venarum, and a subpopulation thereof harbors the dominant pacemaker of the heart, which is of paramount importance for initiating the heart beat [1–4]. Sinus venarum myocardium may also give rise to arrh ...
Thesis, Emmanuel Moss 20110625 Final
... denervation, from 365±252 at baseline to 53±106mm2 following RAGP ablation (p<0.03). With retrograde denervation, chronotropic and repolarisation changes were suppressed following RAGP ablation in two canines, and following Ao/SVC ablation in three. Surface area of REPOL∆ diminished following RAGP a ...
... denervation, from 365±252 at baseline to 53±106mm2 following RAGP ablation (p<0.03). With retrograde denervation, chronotropic and repolarisation changes were suppressed following RAGP ablation in two canines, and following Ao/SVC ablation in three. Surface area of REPOL∆ diminished following RAGP a ...
Atrial Fibrillation in the Wolff-Parkinson-White Syndrome
... lateral bypass tract, had a higher incidence of double atrial potentials and induced AF than patients with AVNRT. Furthermore, WPW patients with double atrial potentials had a higher incidence of induced AF than those WPW patients without double atrial potentials. Campbell et al 23 demonstrated a hi ...
... lateral bypass tract, had a higher incidence of double atrial potentials and induced AF than patients with AVNRT. Furthermore, WPW patients with double atrial potentials had a higher incidence of induced AF than those WPW patients without double atrial potentials. Campbell et al 23 demonstrated a hi ...
the postmortem rigor of the mammalian heart and the influence of an
... presents itself after the death of man and beast without any special preparation, the condition of the heart can be observed only after special dissection. Furthermore, autopsies being usually made only for special purposes-pathologic or forensic-were frequently performed some time after death, when ...
... presents itself after the death of man and beast without any special preparation, the condition of the heart can be observed only after special dissection. Furthermore, autopsies being usually made only for special purposes-pathologic or forensic-were frequently performed some time after death, when ...
catalogue CSF PDF
... the peritoneal cavity or other appropriate drainage site such as the heart’s right atrium. ...
... the peritoneal cavity or other appropriate drainage site such as the heart’s right atrium. ...
The azygos vein pathway: an overview from anatomical variations to
... Milne and co-workers [5], who identified an azygos enlargement in the supine position or in case of overhydratation, renal failure or being in the mid-trimester of pregnancy [5–7]. Moreover, the Fig. 2 CT of the normal azygos venous system. Contrastenhanced CT axial images show the normal appearance ...
... Milne and co-workers [5], who identified an azygos enlargement in the supine position or in case of overhydratation, renal failure or being in the mid-trimester of pregnancy [5–7]. Moreover, the Fig. 2 CT of the normal azygos venous system. Contrastenhanced CT axial images show the normal appearance ...
Catheter Ablation as Treatment for Atrial Fibrillation
... common focal trigger of AF appears to be located within the cardiac muscle that extends into the pulmonary veins. AF accounts for approximately one-third of hospitalizations for cardiac rhythm disturbances. Symptoms of AF (e.g., palpitations, decreased exercise tolerance, dyspnea) are primarily rela ...
... common focal trigger of AF appears to be located within the cardiac muscle that extends into the pulmonary veins. AF accounts for approximately one-third of hospitalizations for cardiac rhythm disturbances. Symptoms of AF (e.g., palpitations, decreased exercise tolerance, dyspnea) are primarily rela ...
EAE/ASE Recommendations for Image Acquisition and Display
... Perez de Isla, MD, PhD, FESC, Otto Kamp, MD, PhD, Patrizio Lancellotti, MD, PhD, FESC, Thomas H. Marwick, MBBS, PhD, Marti L. McCulloch, MBA, RDCS, FASE, Petros Nihoyannopoulos, MD, FESC, Mauro Pepi, MD, FESC, Wendy Tsang, MD, Jose Luis Zamorano, MD, FESC, FASE, and William A. Zoghbi, MD, FASE. The ...
... Perez de Isla, MD, PhD, FESC, Otto Kamp, MD, PhD, Patrizio Lancellotti, MD, PhD, FESC, Thomas H. Marwick, MBBS, PhD, Marti L. McCulloch, MBA, RDCS, FASE, Petros Nihoyannopoulos, MD, FESC, Mauro Pepi, MD, FESC, Wendy Tsang, MD, Jose Luis Zamorano, MD, FESC, FASE, and William A. Zoghbi, MD, FASE. The ...
EAE/ASE Recommendations for Image Acquisition and Display
... triggered multiple-beat 3DE imaging. Real-time or live 3DE refers to the acquisition of multiple pyramidal data sets per second in a single heartbeat. Most ultrasound systems have real-time 3DE volume imaging available in the following modes: live 3D narrow volume, live 3D zoomed, live 3D wide angle ...
... triggered multiple-beat 3DE imaging. Real-time or live 3DE refers to the acquisition of multiple pyramidal data sets per second in a single heartbeat. Most ultrasound systems have real-time 3DE volume imaging available in the following modes: live 3D narrow volume, live 3D zoomed, live 3D wide angle ...
Indications and Guidelines for Performance of
... ventricular systolic function and size.16,17 Previous authors have addressed the utility and importance of intraoperative TEE in patients with congenital cardiac abnormalities.1-9,18,19 Performance of TEE in the patient with CHD immediately after surgery, but before chest closure, has been a contrib ...
... ventricular systolic function and size.16,17 Previous authors have addressed the utility and importance of intraoperative TEE in patients with congenital cardiac abnormalities.1-9,18,19 Performance of TEE in the patient with CHD immediately after surgery, but before chest closure, has been a contrib ...
NCD Watch August 2016
... Ethnicity — Atrial fibrillation is more common in Whites than in other racial groups, such as Blacks and Asians.11, 15 For example, a U.S. study found that Whites had 32% increased risk of atrial fibrillation at age 50 compared with non-Whites.15 Cardiovascular diseases, such as hypertension, corona ...
... Ethnicity — Atrial fibrillation is more common in Whites than in other racial groups, such as Blacks and Asians.11, 15 For example, a U.S. study found that Whites had 32% increased risk of atrial fibrillation at age 50 compared with non-Whites.15 Cardiovascular diseases, such as hypertension, corona ...
Management strategies for patients with pulmonary hypertension Continuing Medical Education Article
... ICU (preexisting pulmonary vascular disease, acute or chronic cardiovascular disease, and acute or chronic pulmonary disease), or other causes such as human immunodeficiency virus or liver disease. Physical examination of patients with right ventricular failure classically reveals an elevated jugula ...
... ICU (preexisting pulmonary vascular disease, acute or chronic cardiovascular disease, and acute or chronic pulmonary disease), or other causes such as human immunodeficiency virus or liver disease. Physical examination of patients with right ventricular failure classically reveals an elevated jugula ...
Management strategies for patients with pulmonary hypertension in
... ICU (preexisting pulmonary vascular disease, acute or chronic cardiovascular disease, and acute or chronic pulmonary disease), or other causes such as human immunodeficiency virus or liver disease. Physical examination of patients with right ventricular failure classically reveals an elevated jugular ...
... ICU (preexisting pulmonary vascular disease, acute or chronic cardiovascular disease, and acute or chronic pulmonary disease), or other causes such as human immunodeficiency virus or liver disease. Physical examination of patients with right ventricular failure classically reveals an elevated jugular ...
Dissection of Sheep`s Pluck
... a. What happened to the lungs when air was forced into them? b. Do you think there is a limit to how much air can be pumped into the lungs? Explain your answer ...
... a. What happened to the lungs when air was forced into them? b. Do you think there is a limit to how much air can be pumped into the lungs? Explain your answer ...
Success of Surgical Left Atrial Appendage Closure
... exclusion and 67% in stapler exclusion). However, it remains to be determined whether appendages with residual flow or a residual stump are associated with increased risk of emboli. Nevertheless, it would seem unwise to discontinue anticoagulation in a patient with LAA thrombus and a persistent comm ...
... exclusion and 67% in stapler exclusion). However, it remains to be determined whether appendages with residual flow or a residual stump are associated with increased risk of emboli. Nevertheless, it would seem unwise to discontinue anticoagulation in a patient with LAA thrombus and a persistent comm ...
Diminished stroke volume during inspiration
... preparation appeared to be reflex tachycardia and autonomic changes associated with inspiration. However, when heart rate was controlled by atrial pacing or pharmacologic autonomic attenuation (propranolol and atropine), stroke volume still decreased around 10%, with an inspiratory decrease in pleur ...
... preparation appeared to be reflex tachycardia and autonomic changes associated with inspiration. However, when heart rate was controlled by atrial pacing or pharmacologic autonomic attenuation (propranolol and atropine), stroke volume still decreased around 10%, with an inspiratory decrease in pleur ...
Atrial septal defect
![](https://commons.wikimedia.org/wiki/Special:FilePath/Asd-web.jpg?width=300)
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart. Normally, the atria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent, then oxygen-rich blood can flow directly from the left side of the heart to mix with the oxygen-poor blood in the right side of the heart, or vice versa. This can lead to lower-than-normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. However, an ASD may not produce noticeable signs or symptoms, especially if the defect is small.A ""shunt"" is the presence of a net flow of blood through the defect, either from left to right or right to left. The amount of shunting present, if any, determines the hemodynamic significance of the ASD. A ""right-to-left-shunt"" typically poses the more dangerous scenario.During development of the fetus, the interatrial septum develops to separate the left and right atria. However, a hole in the septum called the foramen ovale, allows blood from the right atrium to enter the left atrium during fetal development. This opening allows blood to bypass the nonfunctional fetal lungs while the fetus obtains its oxygen from the placenta. A layer of tissue called the septum primum acts as a valve over the foramen ovale during fetal development. After birth, the pressure in the right side of the heart drops as the lungs open and begin working, causing the foramen ovale to close entirely. In approximately 25% of adults, the foramen ovale does not entirely seal. In these cases, any elevation of the pressure in the pulmonary circulatory system (due to pulmonary hypertension, temporarily while coughing, etc.) can cause the foramen ovale to remain open. This is known as a patent foramen ovale (PFO), which is a type of atrial septal defect.