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article in press
... the administration of a drug capable of reducing the adrenergic response23 and possibly pulmonary vasculature blood pressure22 allowed the inclusion of this agent in the anesthesia. The bolus dose of dexmedetomidine (1 g kg−1 ) is purposely excluded. It is assumed that due to the effect on ␣2b rece ...
... the administration of a drug capable of reducing the adrenergic response23 and possibly pulmonary vasculature blood pressure22 allowed the inclusion of this agent in the anesthesia. The bolus dose of dexmedetomidine (1 g kg−1 ) is purposely excluded. It is assumed that due to the effect on ␣2b rece ...
Pediatric Cardiology and Cardiovascular Surgery
... including persistent fetal circulation or transitional myocardial ischemia of the newborn, the latter a phenomenon fully characterized by the late Richard Rowe. The central fetal circulation changes dramatically at birth. The inefficient separation of the oxygen uptake and delivery circulations of t ...
... including persistent fetal circulation or transitional myocardial ischemia of the newborn, the latter a phenomenon fully characterized by the late Richard Rowe. The central fetal circulation changes dramatically at birth. The inefficient separation of the oxygen uptake and delivery circulations of t ...
Corrected Transposition of the Great Arteries
... ◙◙ Specific Steps of Operation ◙◙ Recommended Reading ...
... ◙◙ Specific Steps of Operation ◙◙ Recommended Reading ...
Copyright HMP Communications - Vascular Disease Management
... Due to nonfunctioning pacemaker leads and SVC syndrome, definitive therapy was determined to include laser lead extraction in combination with possible superior vena cava stenting and replacement of the patient’s dual chamber pacemaker leads. The procedure was performed in a hybrid catheterization l ...
... Due to nonfunctioning pacemaker leads and SVC syndrome, definitive therapy was determined to include laser lead extraction in combination with possible superior vena cava stenting and replacement of the patient’s dual chamber pacemaker leads. The procedure was performed in a hybrid catheterization l ...
Disorders of the Cardiovascular System
... It implies that the patient has more dyspnea when he is lying down. 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 wit ...
... It implies that the patient has more dyspnea when he is lying down. 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 wit ...
Dynamics of the Pulmonary Venous Flow in the Fetus
... Key Words: fetus 䡲 echocardiography 䡲 blood flow 䡲 physiology 䡲 vessels ...
... Key Words: fetus 䡲 echocardiography 䡲 blood flow 䡲 physiology 䡲 vessels ...
Fetal interventions in congenital heart disease - sha
... patency (ie, not atresia) of the mitral and aortic valves and with only mild hypoplasia of the left ventricle, may be amenable to a 2-ventricle repair • In some cases, HLHS may be the consequence of abnormal myocyte proliferation, despite normal antegrade flow to the left ventricle ...
... patency (ie, not atresia) of the mitral and aortic valves and with only mild hypoplasia of the left ventricle, may be amenable to a 2-ventricle repair • In some cases, HLHS may be the consequence of abnormal myocyte proliferation, despite normal antegrade flow to the left ventricle ...
Heart valve closure timing intervals in response to left ventricular
... to the generation of heart sounds. The valve closure timings are thus defined by the relative pressures across the valves, as indicated by the arrows in Figure 3. The closure timings of the mitral valve, aortic valve, tricuspid valve and pulmonary valve are denoted as tm, ta, tt and tp, respectively ...
... to the generation of heart sounds. The valve closure timings are thus defined by the relative pressures across the valves, as indicated by the arrows in Figure 3. The closure timings of the mitral valve, aortic valve, tricuspid valve and pulmonary valve are denoted as tm, ta, tt and tp, respectively ...
Anatomy of the Human Heart
... after birth, these specialized fetal structures normally collapse, and the heart takes on the "adult" pattern of circulation. However, in rare cases, some fetal remnants and defects can occur. Although the heart is filled with blood, it provides very little nourishment and oxygen to the tissues of t ...
... after birth, these specialized fetal structures normally collapse, and the heart takes on the "adult" pattern of circulation. However, in rare cases, some fetal remnants and defects can occur. Although the heart is filled with blood, it provides very little nourishment and oxygen to the tissues of t ...
Assessment of left heart and pulmonary circulation flow dynamics by
... across the valve or (2) mitral regurgitation that occurs when the valve is leaking during cardiac contraction, which leads to a volume overload in the left atrium (LA). Both types of dysfunction will thus cause an increase in the LA pressure and then to a passive elevation of the pressure in the pul ...
... across the valve or (2) mitral regurgitation that occurs when the valve is leaking during cardiac contraction, which leads to a volume overload in the left atrium (LA). Both types of dysfunction will thus cause an increase in the LA pressure and then to a passive elevation of the pressure in the pul ...
Pulmonary Arterial Hypertension - The Association of Physicians of
... Gandharba Ray, L Ravi Kumar ...
... Gandharba Ray, L Ravi Kumar ...
Congenital Pseudohorseshoe Lung Associated with Scimitar
... and an accessory diaphragm. Minor components are tracheal trifurcation, eventration and partial absence of the diaphragm, phrenic cyst, horseshoe lung, superior vena cava anomalous and absence of the left pericardium (1, 2, 4) (Figure 4). Anomalous pulmonary venous drainage is an extracardiac left-t ...
... and an accessory diaphragm. Minor components are tracheal trifurcation, eventration and partial absence of the diaphragm, phrenic cyst, horseshoe lung, superior vena cava anomalous and absence of the left pericardium (1, 2, 4) (Figure 4). Anomalous pulmonary venous drainage is an extracardiac left-t ...
Left Septal Atrial Tachycardias: Electrocardiographic
... The anatomic location of focal ATs is determined by a complex interplay between atrial anatomy and electrophysiology. The interatrial septum is a relatively limited structure composed of the floor of the fossa, the antero-inferior rim of the fossa abutting the tricuspid valve vestibule and the flap ...
... The anatomic location of focal ATs is determined by a complex interplay between atrial anatomy and electrophysiology. The interatrial septum is a relatively limited structure composed of the floor of the fossa, the antero-inferior rim of the fossa abutting the tricuspid valve vestibule and the flap ...
Chp31Heart as Pump - Notes For ANZCA Primary Exam
... o A – atrial systole o C – isovolumetric contraction - bulging of AV-valves into atrial chambers o V – rise in atrial pressure until tricuspid valve opens (due to atrial filling during ventricular systole (lasts until end of isovolumetric relaxation)) o x-descent: (follows c wave) initial pressure d ...
... o A – atrial systole o C – isovolumetric contraction - bulging of AV-valves into atrial chambers o V – rise in atrial pressure until tricuspid valve opens (due to atrial filling during ventricular systole (lasts until end of isovolumetric relaxation)) o x-descent: (follows c wave) initial pressure d ...
Full Text - Res Cardiovasc Med
... cardiac arrhythmia, including 19 (8.2%) transient and 5 (2.2 %) permanent arrhythmia. During their ICU stay, ventricular arrhythmia and complete heart block were observed in 34 (14.7%) and 5 patients (2.2%), respectively. At the time of the last follow-up, incomplete right bundle branch block (RBBB) ...
... cardiac arrhythmia, including 19 (8.2%) transient and 5 (2.2 %) permanent arrhythmia. During their ICU stay, ventricular arrhythmia and complete heart block were observed in 34 (14.7%) and 5 patients (2.2%), respectively. At the time of the last follow-up, incomplete right bundle branch block (RBBB) ...
Parasympathetic-mediated atrial fibrillation during tilt test
... history pointed towards neurocardiogenic or postural hypotension related syncope. Therefore, we decided to submit the patient to another tilt test following the same protocol one day later, while the patient was still in sinus rhythm. During the second tilt test, the patient developed pallor, sweati ...
... history pointed towards neurocardiogenic or postural hypotension related syncope. Therefore, we decided to submit the patient to another tilt test following the same protocol one day later, while the patient was still in sinus rhythm. During the second tilt test, the patient developed pallor, sweati ...
Personalized Pulmonary Trunk Modeling for Intervention Planning
... dynamics is crucial for the pre-procedural planning and successful intervention of PPVI. Cardiac CT imaging is often performed when high spatial resolution, soft tissue contrast or dynamics is essential. The key advantage is the ability to acquire multiple non-invasive and accurate scans required fo ...
... dynamics is crucial for the pre-procedural planning and successful intervention of PPVI. Cardiac CT imaging is often performed when high spatial resolution, soft tissue contrast or dynamics is essential. The key advantage is the ability to acquire multiple non-invasive and accurate scans required fo ...
Stroke prevention in atrial fibrillation (AF) is an important goal of
... stroke among patients with AF is stratified on the basis of several factors. A commonly used score, the CHADS2 score, assigns 1 point each for the presence of heart failure, hypertension, age 75 years or older, diabetes, or prior stroke or transient ischemic attack. The CHADS2-VASc score includes se ...
... stroke among patients with AF is stratified on the basis of several factors. A commonly used score, the CHADS2 score, assigns 1 point each for the presence of heart failure, hypertension, age 75 years or older, diabetes, or prior stroke or transient ischemic attack. The CHADS2-VASc score includes se ...
thesis frame 23 okt
... normally occur during end diastole-early systole and are augmented by the normal inspiration [11, 12]. The pressure reversal is further increased during augmented intra thoracic pressure swings; for example, during coughing, defecation and lifting. A PFO is present in about a quarter of the adult po ...
... normally occur during end diastole-early systole and are augmented by the normal inspiration [11, 12]. The pressure reversal is further increased during augmented intra thoracic pressure swings; for example, during coughing, defecation and lifting. A PFO is present in about a quarter of the adult po ...
Ebstein`s Anomaly of the Tricuspid Valve
... Shapiro12 in their reviews in 1937 stated that "it would appear impossible to make the diagnosis during life." We have recently studied three patients with Ebstein's malformation of the heart and have re-examined the case previously reported by Taussig.'9 Although the correct diagnosis was not made ...
... Shapiro12 in their reviews in 1937 stated that "it would appear impossible to make the diagnosis during life." We have recently studied three patients with Ebstein's malformation of the heart and have re-examined the case previously reported by Taussig.'9 Although the correct diagnosis was not made ...
pulmonary Hypertension
... Right heart catheterization – This procedure measures heart pressures and the rate at which your heart pumps blood. It also can find any leaks between the two sides of the heart. Ventilation perfusion scan (V/Q scan) – Scans for evidence of blood clots along the pathway to the lungs. Chest CT scan – ...
... Right heart catheterization – This procedure measures heart pressures and the rate at which your heart pumps blood. It also can find any leaks between the two sides of the heart. Ventilation perfusion scan (V/Q scan) – Scans for evidence of blood clots along the pathway to the lungs. Chest CT scan – ...
2.Heart as Pump - Notes For ANZCA Primary Exam
... • Myocardium – epicardium – pericardium Heart as a pump - ...
... • Myocardium – epicardium – pericardium Heart as a pump - ...
absence of the left pulmonary artery in fallot`s tetralogy - Heart
... the L.P.A. In the other group where the bulbus cordis has developed normally, it is more difficult to explain why the R.P.A. is absent in such a high proportion of cases. It is possible, however, at the time when the left sixth arch is normally absorbed, that in some cases the proximal part of the r ...
... the L.P.A. In the other group where the bulbus cordis has developed normally, it is more difficult to explain why the R.P.A. is absent in such a high proportion of cases. It is possible, however, at the time when the left sixth arch is normally absorbed, that in some cases the proximal part of the r ...
APPROACH TO AN INFANT WITH CYANOSIS –
... present for the first time with cyanotic spells. Occasional child will present with a cerebrovascular accident or brain abscess. Cyanotic children may be classified into those who have decreased pulmonary blood flow (↓ PBF) or those with increased pulmonary blood flow (PBF.) This is primarily answer ...
... present for the first time with cyanotic spells. Occasional child will present with a cerebrovascular accident or brain abscess. Cyanotic children may be classified into those who have decreased pulmonary blood flow (↓ PBF) or those with increased pulmonary blood flow (PBF.) This is primarily answer ...
Doubly Committed Ventricular Septal Defect: Single
... valve leaflets, but also between the aortic and tricuspid valve leaflets. Such defects are both doubly committed and perimembranous and present a higher risk of atrioventricular bundle injury by operative VSD closure [6]. In our study, we found a predominance of male patients (72%) in the operated g ...
... valve leaflets, but also between the aortic and tricuspid valve leaflets. Such defects are both doubly committed and perimembranous and present a higher risk of atrioventricular bundle injury by operative VSD closure [6]. In our study, we found a predominance of male patients (72%) in the operated g ...
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.