4 Arrhythmias in Children and Young Adults Harinder R. Singh
... the exact incidence is unknown. However, it is a common problem in those who have had surgery for congenital heart disease (CHD), especially in patients with Mustard, Senning, and Fontan procedures (Fishberger 2001). Approximately 2/3 of all immediate posttransplant patients have SND (Jacquet et al. ...
... the exact incidence is unknown. However, it is a common problem in those who have had surgery for congenital heart disease (CHD), especially in patients with Mustard, Senning, and Fontan procedures (Fishberger 2001). Approximately 2/3 of all immediate posttransplant patients have SND (Jacquet et al. ...
Diagnosis of Heart Failure in Adults
... Systolic dysfunction is caused by impaired myocardial contractility and low ejection fraction. It is associated most often with coronary artery disease (especially myocardial infarction), idiopathic dilated cardiomyopathy, hypertension, and valvular disease. The five types of heart failure resulting ...
... Systolic dysfunction is caused by impaired myocardial contractility and low ejection fraction. It is associated most often with coronary artery disease (especially myocardial infarction), idiopathic dilated cardiomyopathy, hypertension, and valvular disease. The five types of heart failure resulting ...
The invention of the stethoscope: A milestone in cardiology
... heart beat when, in 1818, Laennec (Quimper, 1781–Douarnenez, 1826) invented a practical measuring instrument that he christened the stethoscope. The author’s writings discussing his invention are worthy of commentary, not only so as to understand the author’s chain of thought but also to see how a n ...
... heart beat when, in 1818, Laennec (Quimper, 1781–Douarnenez, 1826) invented a practical measuring instrument that he christened the stethoscope. The author’s writings discussing his invention are worthy of commentary, not only so as to understand the author’s chain of thought but also to see how a n ...
Bradycardia and Heart Block
... for symptoms, pacemaker implantation may be required. In an emergency situation or when the problem is thought to be temporary, a temporary transvenous pacemaker is placed. The pacing wire is introduced into a major vein (most commonly the jugular, subclavian or femoral) and the distal tip is advanc ...
... for symptoms, pacemaker implantation may be required. In an emergency situation or when the problem is thought to be temporary, a temporary transvenous pacemaker is placed. The pacing wire is introduced into a major vein (most commonly the jugular, subclavian or femoral) and the distal tip is advanc ...
Cardiac Arrhythmias
... b. β-blocking agents—β-blockers such as metoprolol or esmolol slow SA node impulse formation and slow conduction through the AV node. These medications should be used with caution in patients with a history of severe reactive airway disease and CHF. Metoprolol is an alternative to calcium channel bl ...
... b. β-blocking agents—β-blockers such as metoprolol or esmolol slow SA node impulse formation and slow conduction through the AV node. These medications should be used with caution in patients with a history of severe reactive airway disease and CHF. Metoprolol is an alternative to calcium channel bl ...
Fetal Arrhythmias: A Clinical Review
... premature atrial contractions (PACs), what are usually identified in third trimester fetuses and their frequency may be highly variable. These are usually benign, resolving just before or shortly after birth. The follow-up is necessary, because some (1-3%) of affected fetuses have intermittent runs ...
... premature atrial contractions (PACs), what are usually identified in third trimester fetuses and their frequency may be highly variable. These are usually benign, resolving just before or shortly after birth. The follow-up is necessary, because some (1-3%) of affected fetuses have intermittent runs ...
Electrocardiography in horses – part 2
... Atrial premature contractions (APCs) or atrial premature beats occur earlier than expected in the normal basic rhythm (Hilwig, 1977). In athletic horses, APCs occur occasionally, but the performance is affected only when they cause an excessive heart rate during exercise or predispose to paroxysmal ...
... Atrial premature contractions (APCs) or atrial premature beats occur earlier than expected in the normal basic rhythm (Hilwig, 1977). In athletic horses, APCs occur occasionally, but the performance is affected only when they cause an excessive heart rate during exercise or predispose to paroxysmal ...
Atrial Fibrillation in Acute Myocardial Infarction
... that AF complicating AMI is usually transient. We found significant differences in the onset and duration of AF in relation to the location of MI but Mohanad AL-Jashami17 demonstrated that there was no relation of AF to the site of infarction. Others1,4,13,18 have also demonstrated an equal distribu ...
... that AF complicating AMI is usually transient. We found significant differences in the onset and duration of AF in relation to the location of MI but Mohanad AL-Jashami17 demonstrated that there was no relation of AF to the site of infarction. Others1,4,13,18 have also demonstrated an equal distribu ...
The Cardiac Conduction System
... is slower in structures further along the activation pathway. For example, the atrioventricular (AV) nodal rate is slower than the SA nodal rate. This prevents the AV node from generating a spontaneous rhythm under normal conditions because it remains refractory at rates above 55 beats/ min. If the ...
... is slower in structures further along the activation pathway. For example, the atrioventricular (AV) nodal rate is slower than the SA nodal rate. This prevents the AV node from generating a spontaneous rhythm under normal conditions because it remains refractory at rates above 55 beats/ min. If the ...
Cardiomyopathy Related to Transthyretin Val30met Mutation in
... audible in all areas, especially in the aortic area and in the left sternal border, without irradiation and unchanged to dynamic auscultation. In the neurological test she was lucid and oriented, without focal signs, slowed walking, decreased algic, light tactile and thermal sensitivity, and reduced ...
... audible in all areas, especially in the aortic area and in the left sternal border, without irradiation and unchanged to dynamic auscultation. In the neurological test she was lucid and oriented, without focal signs, slowed walking, decreased algic, light tactile and thermal sensitivity, and reduced ...
Chest Pain In Children And Adolescents
... Arterial Switch Operation-switching the 2 major vessels that carry blood away from the heart – the aorta and the pulmonary artery which are transposed at birth, are at risk of developing coronary artery ostial stenosis Ross Procedure-aortic valve replacement using pulmonary autograft provides excell ...
... Arterial Switch Operation-switching the 2 major vessels that carry blood away from the heart – the aorta and the pulmonary artery which are transposed at birth, are at risk of developing coronary artery ostial stenosis Ross Procedure-aortic valve replacement using pulmonary autograft provides excell ...
CORONARY ARTERIES
... the SA node is in charge. The impulse starts here and has an intrinsic rate of 60100 beats per minute. Internodal tracts and Bachmann’s Bundle- impulse travels through the right and left atrium causing depolarization AV Node (Atrioventricular Node) – Located at the base of the right atrium. Impulse ...
... the SA node is in charge. The impulse starts here and has an intrinsic rate of 60100 beats per minute. Internodal tracts and Bachmann’s Bundle- impulse travels through the right and left atrium causing depolarization AV Node (Atrioventricular Node) – Located at the base of the right atrium. Impulse ...
Glucagon in Congestive Heart Failure
... failure of propranolol to block inotropy, and absence of tachyphylaxis. Although glucagon is in relatively wide use for its inotropic actions (and chronotropic in cardiac arrest as well ) , reported experience with this agent in continuous intravenous infusion is limited and conflicting. While unifo ...
... failure of propranolol to block inotropy, and absence of tachyphylaxis. Although glucagon is in relatively wide use for its inotropic actions (and chronotropic in cardiac arrest as well ) , reported experience with this agent in continuous intravenous infusion is limited and conflicting. While unifo ...
Asymptomatic Patient Screening
... MCG for Early Detection of Heart Disease Are there any individuals who should not take an MCG exam? Individuals who are not able to lie down cannot take an MCG exam. Pacemakers create electrical signals that interfere with the MCG measurement; therefore, patients with pacemakers are not advised to ...
... MCG for Early Detection of Heart Disease Are there any individuals who should not take an MCG exam? Individuals who are not able to lie down cannot take an MCG exam. Pacemakers create electrical signals that interfere with the MCG measurement; therefore, patients with pacemakers are not advised to ...
Congestive Heart Failure Survival Kit
... enough blood to meet the body’s needs. Heart failure does not mean that the heart has failed completely, but rather that the heart is not strong enough to meet the body’s needs at times of stress or increased activity. As you have learned the left ventricle normally receives blood from the lungs and ...
... enough blood to meet the body’s needs. Heart failure does not mean that the heart has failed completely, but rather that the heart is not strong enough to meet the body’s needs at times of stress or increased activity. As you have learned the left ventricle normally receives blood from the lungs and ...
Netherlands Heart Journal Supplements Abstracts of the Scientifi c Spring
... Between 1998 and 2013, 54 type B aortic dissections occurred in 600 Marfan patients (36±14 years, 52% male). Mean diameter of the proximal descending aorta before type B aortic dissection was 31±7 mm. Independent variables associated with type B aortic dissection were (A) prior prophylactic aortic s ...
... Between 1998 and 2013, 54 type B aortic dissections occurred in 600 Marfan patients (36±14 years, 52% male). Mean diameter of the proximal descending aorta before type B aortic dissection was 31±7 mm. Independent variables associated with type B aortic dissection were (A) prior prophylactic aortic s ...
Combined right ventricular systolic and diastolic dysfunction
... combination of significant systolic and diastolic dysfunction provides better prognostic information than does the left ventricular systolic dysfunction alone [7,8]. A similar additive prognostic impact of systolic and diastolic dysfunction can be expected analogically for the right ventricle. The D ...
... combination of significant systolic and diastolic dysfunction provides better prognostic information than does the left ventricular systolic dysfunction alone [7,8]. A similar additive prognostic impact of systolic and diastolic dysfunction can be expected analogically for the right ventricle. The D ...
Pediatric Heart Update - Le Bonheur Children`s Hospital
... common opening in the septum between the right and left atria. In most cases, this opening closes around the time of birth. If the opening remains after birth, it can allow the blood to mix in the two upper chambers of the heart. Untreated it may increase the risk for stroke by allowing clots to cro ...
... common opening in the septum between the right and left atria. In most cases, this opening closes around the time of birth. If the opening remains after birth, it can allow the blood to mix in the two upper chambers of the heart. Untreated it may increase the risk for stroke by allowing clots to cro ...
Print this article - Publicatii USAMV Cluj
... failure of descending and fusion of median line with lateral folds of the body, the fusion failure of median line as a result of the early rupture of chorionic sac and the amniotic band syndrome (Abi and Giamberti, 2008). In the majority of reported cases by different authors, the location, directio ...
... failure of descending and fusion of median line with lateral folds of the body, the fusion failure of median line as a result of the early rupture of chorionic sac and the amniotic band syndrome (Abi and Giamberti, 2008). In the majority of reported cases by different authors, the location, directio ...
Ch. 19 Physiology of the Cardiovascular System
... fluids surrounding the cells as waste products are removed. Blood must not only be kept moving through its closed circuit of vessels by the pumping activity of the heart, but it must also be directed and delivered to those capillary beds surrounding cells that need it most. Blood flow to cells at re ...
... fluids surrounding the cells as waste products are removed. Blood must not only be kept moving through its closed circuit of vessels by the pumping activity of the heart, but it must also be directed and delivered to those capillary beds surrounding cells that need it most. Blood flow to cells at re ...
Cardiac Perforation Associated with a Pacemaker or ICD Lead
... Cardiac perforation after pacemaker or implantable cardioverter-defibrillator (ICD) implantation is an infrequent complication. The reported rates of perforation are 0.1-0.8% after pacemaker implantation and 0.6-5.2% after ICD implantation (Khan et al., 2005; Mahapatra et al., 2005). From 1994 to 20 ...
... Cardiac perforation after pacemaker or implantable cardioverter-defibrillator (ICD) implantation is an infrequent complication. The reported rates of perforation are 0.1-0.8% after pacemaker implantation and 0.6-5.2% after ICD implantation (Khan et al., 2005; Mahapatra et al., 2005). From 1994 to 20 ...
The Effects of External Electric Currents on the Heart
... terminated by external application of electric countershock across the unopened chest.11-'5 In this report we also show that countershock electric current of the same type that has long been used in open-chest defibrillation will, when applied across the unopened chest, instantaneously terminate atr ...
... terminated by external application of electric countershock across the unopened chest.11-'5 In this report we also show that countershock electric current of the same type that has long been used in open-chest defibrillation will, when applied across the unopened chest, instantaneously terminate atr ...
Echocardiographic Diagnosis of Idiopathic
... trophic cardiomyopathy (HMC) and of 15 normal individuals. In patients with HMC, both end-diastolic and end-systolic volumes were relatively smaller than normal, but the difference was not statistically significant. The ejection fraction was significantly greater in HMC than in normal subjects (P < ...
... trophic cardiomyopathy (HMC) and of 15 normal individuals. In patients with HMC, both end-diastolic and end-systolic volumes were relatively smaller than normal, but the difference was not statistically significant. The ejection fraction was significantly greater in HMC than in normal subjects (P < ...