Cardiac Arrhythmias
... Congenital long QT syndrome is generally treated by betablockade, left cardiac sympathetic denervation, and pacemaker therapy. Patients who remain symptomatic despite conventional therapy and those with a strong family history of sudden death usually need ICD therapy. ...
... Congenital long QT syndrome is generally treated by betablockade, left cardiac sympathetic denervation, and pacemaker therapy. Patients who remain symptomatic despite conventional therapy and those with a strong family history of sudden death usually need ICD therapy. ...
Transcatheter Aortic Valve Implantation, Patient Selection Process
... Introduction: Transcatheter aortic valve implantation (TAVI) is an emerging technique for the treatment of aortic stenosis. With the advent of percutaneous suture devices for the access point and prosthesis delivery systems of smaller diameter, TAVI has become a truly percutaneous procedure: percuta ...
... Introduction: Transcatheter aortic valve implantation (TAVI) is an emerging technique for the treatment of aortic stenosis. With the advent of percutaneous suture devices for the access point and prosthesis delivery systems of smaller diameter, TAVI has become a truly percutaneous procedure: percuta ...
Transthoracic echocardiography in the perioperative setting
... severely impaired ventricular filling can be visualized as ‘kissing walls’ when the papillary muscles touch each other at end-systole corresponding to full emptying of the ventricle (parasternal short-axis ...
... severely impaired ventricular filling can be visualized as ‘kissing walls’ when the papillary muscles touch each other at end-systole corresponding to full emptying of the ventricle (parasternal short-axis ...
to the entire presentation in format - Amiodarone-IV
... • Considered within “standard of care”: reasonably prudent physicians can use. • Considered optional or alternative interventions by majority of experts (versus an intervention of choice for IIa recommendation) Circulation 2000 (Aug 22), 102:I-147 ...
... • Considered within “standard of care”: reasonably prudent physicians can use. • Considered optional or alternative interventions by majority of experts (versus an intervention of choice for IIa recommendation) Circulation 2000 (Aug 22), 102:I-147 ...
Cardiac Imaging: Part 1, MR Pulse Sequences, Imaging Planes, and
... useful for tumor imaging, delayed enhancement imaging, and coronary angiography. Fat suppression is accomplished in a similar manner, in which the inversion time of the additional selective 180° pulse is set to match the null time of fat. Similar to IR, saturation-recover preparatory pulses also imp ...
... useful for tumor imaging, delayed enhancement imaging, and coronary angiography. Fat suppression is accomplished in a similar manner, in which the inversion time of the additional selective 180° pulse is set to match the null time of fat. Similar to IR, saturation-recover preparatory pulses also imp ...
Health Science of South Carolina
... Participants should possess the following competencies at the end of the course: At the end of the course, the student should be able to list, define, and diagnose common unstable and/or life-threatening cardiac, pulmonary, and neurologic states. The student will be expected to explain the differenc ...
... Participants should possess the following competencies at the end of the course: At the end of the course, the student should be able to list, define, and diagnose common unstable and/or life-threatening cardiac, pulmonary, and neurologic states. The student will be expected to explain the differenc ...
Hemodynamic and Echocardiographic Evaluation of
... parisons of these surgical techniques have been conducted to date,13–17 most of which favor the BCAT because the well-maintained RA architecture and function (contraction) reduces the incidence of TVR. The hemodynamic and echocardiographic data for our patients undergoing the mBCAT resembled those p ...
... parisons of these surgical techniques have been conducted to date,13–17 most of which favor the BCAT because the well-maintained RA architecture and function (contraction) reduces the incidence of TVR. The hemodynamic and echocardiographic data for our patients undergoing the mBCAT resembled those p ...
Early mitral deceleration and left atrial stiffness - AJP
... measurements of the mitral valve flow velocity were then obtained using a pulse repetition rate of 4.5 kHz, with the Doppler beam aligned perpendicular to and bisecting the plane of the mitral anulus and with the 3-mm-wide sample volume placed at the level of the anulus, together with synchronized L ...
... measurements of the mitral valve flow velocity were then obtained using a pulse repetition rate of 4.5 kHz, with the Doppler beam aligned perpendicular to and bisecting the plane of the mitral anulus and with the 3-mm-wide sample volume placed at the level of the anulus, together with synchronized L ...
Long-Term Outcome of the Right Ventricular Outflow Tract Palliation
... to stent malposition and tricuspid valve injury; however, their study covered a short-term follow-up study. In Dohlen study (13), RVOT stenting improved arterial oxygen saturation from a median of 73% to 94%. Median Z-score for the left pulmonary artery increased from -4.9 before stent implantation ...
... to stent malposition and tricuspid valve injury; however, their study covered a short-term follow-up study. In Dohlen study (13), RVOT stenting improved arterial oxygen saturation from a median of 73% to 94%. Median Z-score for the left pulmonary artery increased from -4.9 before stent implantation ...
Chapter 8: Arrhythmias and Sudden Cardiac Death
... disease. Better management of atrial fibrillation will reduce mortality from stroke. Prompt treatment of arrhythmias will be an important part of the work to guarantee a maximum 18-week wait by 2008. Improved care for this large group of patients can also make a significant contribution to the deliv ...
... disease. Better management of atrial fibrillation will reduce mortality from stroke. Prompt treatment of arrhythmias will be an important part of the work to guarantee a maximum 18-week wait by 2008. Improved care for this large group of patients can also make a significant contribution to the deliv ...
Size: 3 MB
... • At therapeutic concentration, digoxin reduces the automaticity, increases the diastolic resting membrane potential, prolongs the effective refractory period and decreases the conduction velocity or time, predominantly of AV nodal tissues. • All these may be due to the increased vagal tone and dec ...
... • At therapeutic concentration, digoxin reduces the automaticity, increases the diastolic resting membrane potential, prolongs the effective refractory period and decreases the conduction velocity or time, predominantly of AV nodal tissues. • All these may be due to the increased vagal tone and dec ...
Long-term outcome in congenitally corrected transposition of
... Roger A. Hurwitz, MD, FACC,§§ Harald Kaemmerer, MD,㛳 㛳 John D. Kugler, MD, FACC,¶¶ Daniel J. Murphy, MD, FACC,## Jacqueline A. Noonan, MD, FACC,*** Cynthia Morris, MD,††† Joseph K. Perloff, MD, FACC,††† Stephen P. Sanders, MD, FACC,§§§ ...
... Roger A. Hurwitz, MD, FACC,§§ Harald Kaemmerer, MD,㛳 㛳 John D. Kugler, MD, FACC,¶¶ Daniel J. Murphy, MD, FACC,## Jacqueline A. Noonan, MD, FACC,*** Cynthia Morris, MD,††† Joseph K. Perloff, MD, FACC,††† Stephen P. Sanders, MD, FACC,§§§ ...
left border of heart
... Between the crista and blind extremity of auricle is rough area produced by pectinate muscles it is true auricular chamber. Smooth walled part is produced by incorporation of the right horn of sinus venosus THE RIGHT ATRIUM Opening of vena cava have small cresenteric ridge the remains of its valve c ...
... Between the crista and blind extremity of auricle is rough area produced by pectinate muscles it is true auricular chamber. Smooth walled part is produced by incorporation of the right horn of sinus venosus THE RIGHT ATRIUM Opening of vena cava have small cresenteric ridge the remains of its valve c ...
Left anterior hemiblock masking coronary insufficiency - Heart
... The cause of the change in repolarisation in the present case is uncertain. It is possible, however, that in this patient the normal and late repolarisation of the anterior and superior wall of the left ventricle counterbalanced the vector of ischaemia originating from the lateral and inferior wall ...
... The cause of the change in repolarisation in the present case is uncertain. It is possible, however, that in this patient the normal and late repolarisation of the anterior and superior wall of the left ventricle counterbalanced the vector of ischaemia originating from the lateral and inferior wall ...
Left-to-right interatrial shunt percutaneously
... Published data and feasibility studies in an HF animal model demonstrate that shunting of 1000–1500 cc/ min for 6 mmHg pressure gradient (between LAP and right arterial presure [RAP]) and 1500–1900 cc/min for 10 mmHg pressure gradient is expected to result in a reduction in LAP of 20 and 30%, respec ...
... Published data and feasibility studies in an HF animal model demonstrate that shunting of 1000–1500 cc/ min for 6 mmHg pressure gradient (between LAP and right arterial presure [RAP]) and 1500–1900 cc/min for 10 mmHg pressure gradient is expected to result in a reduction in LAP of 20 and 30%, respec ...
Horse Stress Horse Sense - Performance Equine Nutrition
... elevated lactate in their blood and a notable percentage was low in “ionized” calcium and magnesium. What they failed to point out, of course, is that lactate gets produced when the body can’t metabolize glucose with oxygen, as noted above. No doubt you’re wondering, “Well, when does that ...
... elevated lactate in their blood and a notable percentage was low in “ionized” calcium and magnesium. What they failed to point out, of course, is that lactate gets produced when the body can’t metabolize glucose with oxygen, as noted above. No doubt you’re wondering, “Well, when does that ...
stabilization of the congestive heart failure patient in the er
... disease such as the presence or absence of CHF, serious arrhythmia or ATE and the size of the left atrium. It is also the author’s opinion that many cats originally documented to have HCM will have their heart disease progress to having a degree of left ventricular dilation with reduced contractile ...
... disease such as the presence or absence of CHF, serious arrhythmia or ATE and the size of the left atrium. It is also the author’s opinion that many cats originally documented to have HCM will have their heart disease progress to having a degree of left ventricular dilation with reduced contractile ...
Elasticity-based determination of isovolumetric phases in the human
... the resulting indices (e.g., Tei index) are frequently used to describe overall cardiac function [1]. The standard method for measuring cardiac time intervals is echocardiography, which exploits the opening and closing times of aortic and mitral valves [2]. Isovolumetric cardiac phases are character ...
... the resulting indices (e.g., Tei index) are frequently used to describe overall cardiac function [1]. The standard method for measuring cardiac time intervals is echocardiography, which exploits the opening and closing times of aortic and mitral valves [2]. Isovolumetric cardiac phases are character ...
Elasticity-based determination of isovolumetric
... the resulting indices (e.g., Tei index) are frequently used to describe overall cardiac function [1]. The standard method for measuring cardiac time intervals is echocardiography, which exploits the opening and closing times of aortic and mitral valves [2]. Isovolumetric cardiac phases are character ...
... the resulting indices (e.g., Tei index) are frequently used to describe overall cardiac function [1]. The standard method for measuring cardiac time intervals is echocardiography, which exploits the opening and closing times of aortic and mitral valves [2]. Isovolumetric cardiac phases are character ...
Bidirectional Ventricular Septal Defect Shunt: Quantification
... physiologist carried out the test. We used colour doppler across interventricular septum to identify the VSD. Once it was identified, we tilted the probe to optimize VSD capture. Sample volume was then placed through VSD to obtain pulsed doppler images at rest (Figure 1). Similar pulsed doppler imag ...
... physiologist carried out the test. We used colour doppler across interventricular septum to identify the VSD. Once it was identified, we tilted the probe to optimize VSD capture. Sample volume was then placed through VSD to obtain pulsed doppler images at rest (Figure 1). Similar pulsed doppler imag ...
Gated MIBI myocardial SPECT showing balanced ischemia and
... development of significant chest pain or significant ischemic electrocardiographic changes during test is more likely due to ischemia.8 This patient showed >2 mm ST segment depression at peak exercise. Other evidences on electrocardiographic exercise test include reduced exercise capacity (<5 metabo ...
... development of significant chest pain or significant ischemic electrocardiographic changes during test is more likely due to ischemia.8 This patient showed >2 mm ST segment depression at peak exercise. Other evidences on electrocardiographic exercise test include reduced exercise capacity (<5 metabo ...
The Architecture of the Right Ventricular Outflow Tract
... right ventricle were performed on 15 dog hearts and seven normal human hearts. The hearts in six cases of ventricular septal defect were dissected completely, and partially in four others, including two cases of truncus arteriosus. Twenty-two additional human hearts with cono-truncal abnormalities f ...
... right ventricle were performed on 15 dog hearts and seven normal human hearts. The hearts in six cases of ventricular septal defect were dissected completely, and partially in four others, including two cases of truncus arteriosus. Twenty-two additional human hearts with cono-truncal abnormalities f ...
BUNDLE OF HIS
... CO = volume of blood ejected from left (or right) ventricle into aorta (or pulmonary trunk) each minute CO = stroke volume (SV) x heart rate (HR) In typical resting male ...
... CO = volume of blood ejected from left (or right) ventricle into aorta (or pulmonary trunk) each minute CO = stroke volume (SV) x heart rate (HR) In typical resting male ...
Left ventricle
... aortic orifices • Left and right fibrous trigons • right fibrous trigon sits among the annuli of the bicuspid valve, the tricuspid valve and the aotric valve. Inferiorly it adheres to the muscular part of the interventricular septum, and forward connects with the membranous part of the interventricu ...
... aortic orifices • Left and right fibrous trigons • right fibrous trigon sits among the annuli of the bicuspid valve, the tricuspid valve and the aotric valve. Inferiorly it adheres to the muscular part of the interventricular septum, and forward connects with the membranous part of the interventricu ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.