Monomorphic Ventricular Tachycardia Originating From Right
... This case clearly indicated that catheter ablation can be considered as a viable option in patients with BrS and frequent ICD discharge. During EPS, intravenous procainamide may also be used to reveal arrhythmogenic focus of VT/VF in this group of the patients in the future. Copyright © 2014, Rajaie ...
... This case clearly indicated that catheter ablation can be considered as a viable option in patients with BrS and frequent ICD discharge. During EPS, intravenous procainamide may also be used to reveal arrhythmogenic focus of VT/VF in this group of the patients in the future. Copyright © 2014, Rajaie ...
Atrial thrombus in a premature newborn following cardio
... thrombus at inter-atrial septum as a possible consequence of cardiopulmonary resuscitation, detected by echocardiography. Conversely, there is always a possibility of paradoxical emboli in neonates with patent foramen ovale (PFO). Subsequent clinical course remained asymptomatic and baby was dischar ...
... thrombus at inter-atrial septum as a possible consequence of cardiopulmonary resuscitation, detected by echocardiography. Conversely, there is always a possibility of paradoxical emboli in neonates with patent foramen ovale (PFO). Subsequent clinical course remained asymptomatic and baby was dischar ...
Special Report
... such as systolic and diastolic heart failure, valvular heart disease, and myocardial infarction, and cardiovascular risk factors, such as hypertension, diabetes mellitus, obesity, and cigarette smoking.6,8,11–13 Subclinical markers indicating increased AF risk include increased arterial stiffness14 ...
... such as systolic and diastolic heart failure, valvular heart disease, and myocardial infarction, and cardiovascular risk factors, such as hypertension, diabetes mellitus, obesity, and cigarette smoking.6,8,11–13 Subclinical markers indicating increased AF risk include increased arterial stiffness14 ...
New Insights into Mechanisms of Atrial Fibrillation
... 15% of all strokes are attributable to this disorder. AF is characterized by very rapid, chaotic electrical activity of the atria, resulting in accelerated and irregular ventricular activity, loss of atrial mechanical function and increased risk of atrial clot formation. AF can occasionally affect a ...
... 15% of all strokes are attributable to this disorder. AF is characterized by very rapid, chaotic electrical activity of the atria, resulting in accelerated and irregular ventricular activity, loss of atrial mechanical function and increased risk of atrial clot formation. AF can occasionally affect a ...
Left Atrial Enlargement in Young High
... high static and dynamic exertion induce the morphologic adaptation of the heart to the highest degree. Therefore, the biggest LA enlargement can be expected in those groups of athletes (Pelliccia et al., 2005). The hypothesis of the study was that LA enlargement in athletes was physiologic, fitnessr ...
... high static and dynamic exertion induce the morphologic adaptation of the heart to the highest degree. Therefore, the biggest LA enlargement can be expected in those groups of athletes (Pelliccia et al., 2005). The hypothesis of the study was that LA enlargement in athletes was physiologic, fitnessr ...
PDF - Circulation: Arrhythmia and Electrophysiology
... paroxysmal to persistent and permanent forms, the prevalence of comorbidities, such as heart failure (32.9%, 44.3%, and 55.6%), coronary artery disease (30.0%, 32.9%, and 34.3%), cerebrovascular disease (11.7%, 10.8%, and 17.6%), and valvular disease (16.7%, 21.2%, and 35.8%), increased, and the pre ...
... paroxysmal to persistent and permanent forms, the prevalence of comorbidities, such as heart failure (32.9%, 44.3%, and 55.6%), coronary artery disease (30.0%, 32.9%, and 34.3%), cerebrovascular disease (11.7%, 10.8%, and 17.6%), and valvular disease (16.7%, 21.2%, and 35.8%), increased, and the pre ...
The Role Of Renin Angiotensin System In Atrial Fibrillation
... processes in humans.22 Systemic hypertension and heart failure are the most important risk factors associated with the development of AF.3,6,23,24 The activation of RAS plays an integral part in the neurohumoral processes leading to changes seen in systemic hypertension and heart failure. There is s ...
... processes in humans.22 Systemic hypertension and heart failure are the most important risk factors associated with the development of AF.3,6,23,24 The activation of RAS plays an integral part in the neurohumoral processes leading to changes seen in systemic hypertension and heart failure. There is s ...
n-3 (omega-3) polyunsaturated fatty acids prevent acute atrial
... the ECG in either the non-paced or atrial tachypaced groups receiving n-3 PUFA infusions. Furthermore, in the present study, the lack of prolongation of the atrial ERP, in the absence of atrial tachypacing, is also consistent with a lack of a direct effect of n-3 PUFAs on atrial electrophysiology. I ...
... the ECG in either the non-paced or atrial tachypaced groups receiving n-3 PUFA infusions. Furthermore, in the present study, the lack of prolongation of the atrial ERP, in the absence of atrial tachypacing, is also consistent with a lack of a direct effect of n-3 PUFAs on atrial electrophysiology. I ...
Abbott Announces CE Mark for TactiCath™ Contact Force Ablation
... apply optimal contact force (pressure) when creating a lesion during a cardiac ablation to correct a heart rhythm abnormality. The Sensor Enabled technology allows physicians to create a more detailed heart model during ablation procedures than a catheter without a sensor. The CE Mark is the latest ...
... apply optimal contact force (pressure) when creating a lesion during a cardiac ablation to correct a heart rhythm abnormality. The Sensor Enabled technology allows physicians to create a more detailed heart model during ablation procedures than a catheter without a sensor. The CE Mark is the latest ...
Zaporozhye State Medical University
... If more lead placements are used, specific areas of heart dysfunction can be identified. Therefore the positive or exploring electrode is positioned at other sites and by using combinations of other electrodes for the neutral or negative pole, unipolar lead sites are formed. Unipolar limb leads aVR, ...
... If more lead placements are used, specific areas of heart dysfunction can be identified. Therefore the positive or exploring electrode is positioned at other sites and by using combinations of other electrodes for the neutral or negative pole, unipolar lead sites are formed. Unipolar limb leads aVR, ...
Lesson №1 Anatomy of cardiovascular system. The coronary
... 7. Lower blood pressure on the legs than on the hands is characteristic of: 1) aortic insufficiency; 2) coarctation of aorta; 3) health people; 4) patients with heart failure 8. A positive venous pulse is observed at: 1) aortic insufficiency; 2) stenosis of left atrioventricular aperture; 3) trikusp ...
... 7. Lower blood pressure on the legs than on the hands is characteristic of: 1) aortic insufficiency; 2) coarctation of aorta; 3) health people; 4) patients with heart failure 8. A positive venous pulse is observed at: 1) aortic insufficiency; 2) stenosis of left atrioventricular aperture; 3) trikusp ...
Accelerated idioventricular rhythm observed under total intravenous
... severe when their doses were decreased (+1), because the surgery 1 year prior had no episode of an AIVR with balanced anesthesia using sevoflurane, remifentanil, and propofol, the doses of which were lower than those at this time. The arrhythmias were objectively recorded on an ECG trace (+1). Most ...
... severe when their doses were decreased (+1), because the surgery 1 year prior had no episode of an AIVR with balanced anesthesia using sevoflurane, remifentanil, and propofol, the doses of which were lower than those at this time. The arrhythmias were objectively recorded on an ECG trace (+1). Most ...
Anticoagulation in Patients with Dilated Cardiomyopathy, Low
... outcome the rate of any embolic event at 3 years (stroke, embolic MI, pulmonary, or peripheral embolism), with concomitant safety outcome that would include death and major bleeding, would be extremely helpful in deciding whether anticoagulant treatment is really of any help in this setting. Embolic ...
... outcome the rate of any embolic event at 3 years (stroke, embolic MI, pulmonary, or peripheral embolism), with concomitant safety outcome that would include death and major bleeding, would be extremely helpful in deciding whether anticoagulant treatment is really of any help in this setting. Embolic ...
Staged approach for the management of atrial septal defect in the
... times/day, bisoprolol 2.5 mg/day and furosemide 20 mg/day. The addition of bosentan aimed to decrease pulmonary resistance, thus decreasing the right-to-left shunt caused by the tricuspid valve jet through the ASD. Marked clinical and symptomatic improvements were documented soon thereafter and she ...
... times/day, bisoprolol 2.5 mg/day and furosemide 20 mg/day. The addition of bosentan aimed to decrease pulmonary resistance, thus decreasing the right-to-left shunt caused by the tricuspid valve jet through the ASD. Marked clinical and symptomatic improvements were documented soon thereafter and she ...
Coexistence of Sick Sinus Rhythm and Atrial Flutter
... sinus-like activity with flutter-fibrillation of the right and left atria suggests that a mass of atrial tissue surrounding the sinus node was protected by entrance block. The observation that capture of the low atrium did not result in capture and suppression of the sinus node area supports this hy ...
... sinus-like activity with flutter-fibrillation of the right and left atria suggests that a mass of atrial tissue surrounding the sinus node was protected by entrance block. The observation that capture of the low atrium did not result in capture and suppression of the sinus node area supports this hy ...
NURS1004 Week 10 Lecture the Heart Part II Prepared by Didy
... heartbeat and the beginning of the next – Includes both contraction and relaxation ...
... heartbeat and the beginning of the next – Includes both contraction and relaxation ...
Importance of Atrial Compliance in Cardiac Performance
... the magnitude of the changes in venous return flow and atrial pressure became smaller, the mean level of venous return flow increased, the atrial volume increased, the mean atrial pressure decreased, the ventricular stroke volume increased, and the enddiastolic volume increased; end-systolic volume, ...
... the magnitude of the changes in venous return flow and atrial pressure became smaller, the mean level of venous return flow increased, the atrial volume increased, the mean atrial pressure decreased, the ventricular stroke volume increased, and the enddiastolic volume increased; end-systolic volume, ...
QUIZ # 1 - Cognella Titles Store
... is contraction of the ventricles. Since the ventricles are contracting, you know that the impulse has been received by the AV node and is traveling through the bundle branches and the Purkinje fibers as the ventricles contract. It is important for you to know how long it is taking for the ventricles ...
... is contraction of the ventricles. Since the ventricles are contracting, you know that the impulse has been received by the AV node and is traveling through the bundle branches and the Purkinje fibers as the ventricles contract. It is important for you to know how long it is taking for the ventricles ...
to First Heart Sound and Opening Snap in Patients with Mitral Stenosis
... conical shape. The Figure shows an example of each type of valve in systole and diastole. There were four phases of motion of the mitral valve cusps and annulus during a complete cardiac cycle. In early systole, 0 03-0-04 sec. after the Q wave of the electrocardiogram, there was a sudden ascent of t ...
... conical shape. The Figure shows an example of each type of valve in systole and diastole. There were four phases of motion of the mitral valve cusps and annulus during a complete cardiac cycle. In early systole, 0 03-0-04 sec. after the Q wave of the electrocardiogram, there was a sudden ascent of t ...
Importance of Atrial Compliance in Cardiac Performance
... twice ventricular stroke volume, while the parameters of ventricular contractility were kept unchanged. Cardiac output increased from 2,400 to 3,240 ml/min with increases in atrial compliance from 0.1 to 20 ml/mm Hg (venous return resistance 0.1 mm Hg sec/ml), whereas mean atrial pressure simultaneo ...
... twice ventricular stroke volume, while the parameters of ventricular contractility were kept unchanged. Cardiac output increased from 2,400 to 3,240 ml/min with increases in atrial compliance from 0.1 to 20 ml/mm Hg (venous return resistance 0.1 mm Hg sec/ml), whereas mean atrial pressure simultaneo ...
Spectral characteristics of ventricular response to atrial fibrillation
... which the spectrum was separated into long-term and shortterm components with different spectral characteristics. The short-term component showed a white noise-like flat spectrum with a spectral exponent (absolute value of the regression slope) of 0.05 6 0.08 and an intercept at 1022 Hz of 4.9 6 0.3 ...
... which the spectrum was separated into long-term and shortterm components with different spectral characteristics. The short-term component showed a white noise-like flat spectrum with a spectral exponent (absolute value of the regression slope) of 0.05 6 0.08 and an intercept at 1022 Hz of 4.9 6 0.3 ...
ELECTROCARDIOGRAPHY
... occur during this time, a potentially fatal arrhythmia could result. Summary and Review • The P wave is the wave of atrial depolarization. The PR interval signifies the amount of time it takes the electrical impulse to travel from the SA node to the ...
... occur during this time, a potentially fatal arrhythmia could result. Summary and Review • The P wave is the wave of atrial depolarization. The PR interval signifies the amount of time it takes the electrical impulse to travel from the SA node to the ...
supplement
... fish of the same clutch and between clutches, animals were sorted about two hours prior to imaging. For sorting, the animals were placed under an epifluorescence dissecting microscope and the magnification changer dial was used to concentrate the light and assess how much light was needed to stop th ...
... fish of the same clutch and between clutches, animals were sorted about two hours prior to imaging. For sorting, the animals were placed under an epifluorescence dissecting microscope and the magnification changer dial was used to concentrate the light and assess how much light was needed to stop th ...
Atrioventricular Nodal Function in the Immature Canine
... providing little or no protection to the ventricle against rapid atrial rates and allowing closely coupled atrial beats to fall within the ventricular vulnerable period. We evaluated atrioventricular node function in 21 mongrel neonatal puppies, 3-15 days old, and 15 adult dogs utilizing intracardia ...
... providing little or no protection to the ventricle against rapid atrial rates and allowing closely coupled atrial beats to fall within the ventricular vulnerable period. We evaluated atrioventricular node function in 21 mongrel neonatal puppies, 3-15 days old, and 15 adult dogs utilizing intracardia ...
Improving Thromboprophylaxis Using Atrial Fibrillation Diagnostic
... arm of the project (Figure 1). The remaining 35 cardiological centers prospectively followed their patients according to their center’s standard clinical practice without reports and comprised the usual care control arm of the project. For patients involved in the active intervention arm, an automat ...
... arm of the project (Figure 1). The remaining 35 cardiological centers prospectively followed their patients according to their center’s standard clinical practice without reports and comprised the usual care control arm of the project. For patients involved in the active intervention arm, an automat ...
Atrial fibrillation
Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms. Occasionally there may be heart palpitations, fainting, shortness of breath, or chest pain. The disease increases the risk of heart failure, dementia, and stroke.Hypertension and valvular heart disease are the most common alterable risk factors for AF. Other heart-related risk factors include heart failure, coronary artery disease, cardiomyopathy, and congenital heart disease. In the developing world valvular heart disease often occurs as a result of rheumatic fever. Lung-related risk factors include COPD, obesity, and sleep apnea. Other factors include excess alcohol intake, diabetes mellitus, and thyrotoxicosis. However, half of cases are not associated with one of these risks. A diagnosis is made by feeling the pulse and may be confirmed using an electrocardiogram (ECG). The typical ECG shows no P waves and an irregular ventricular rate.AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable. Ablation may prevent recurrence in some people. Depending on the risk of stroke either aspirin or anti-clotting medications such as warfarin or a novel oral anticoagulant may be recommended. While these medications reduce this risk, they increase rates of major bleeding.Atrial fibrillation is the most common serious abnormal heart rhythm. In Europe and North America, as of 2014, it affects about 2% to 3% of the population. This is an increase from 0.4 to 1% of the population around 2005. In the developing world about 0.6% of males and 0.4% of females are affected. The percentage of people with AF increases with age with 0.14% under 50 years old, 4% between 60 and 70 years old, and 14% over 80 years old being affected. A-fib and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. The first known report of an irregular pulse was by John Baptist Senac in 1749. This was first documented by ECG in 1909 by Thomas Lewis.