Computer Simulation of Bundle Branch re
... activation. Single premature stimuli near the right ventricular &ee wall resulted in single ventricular echo beats. The premature beats were retrograde blocked at the right bundle branch but sufficiently delayed to excite the left sided His-Purkinje system in retrograde and the right bundle branch i ...
... activation. Single premature stimuli near the right ventricular &ee wall resulted in single ventricular echo beats. The premature beats were retrograde blocked at the right bundle branch but sufficiently delayed to excite the left sided His-Purkinje system in retrograde and the right bundle branch i ...
Ventricular Tachycardias - e
... Sustained VT lasts longer than 30 seconds, causes significant hemodynamic symptoms (hypotension, syncope), or requires therapeutic intervention to terminate (medications, cardioversion). VT may further be categorized as monomorphic (originating from one ventricular focus) (Figure 1) or polymorphic ( ...
... Sustained VT lasts longer than 30 seconds, causes significant hemodynamic symptoms (hypotension, syncope), or requires therapeutic intervention to terminate (medications, cardioversion). VT may further be categorized as monomorphic (originating from one ventricular focus) (Figure 1) or polymorphic ( ...
Effect of oral administration of pimobendan in cats with heart failure
... and no cat was hypertensive. The PCV and blood total solids concentration were less than the lower reference limit of 29% and 6.0 g/dL in 4 of 26 (15%) and 1 of 26 (4%) cats, respectively. Blood total solids concentrations were high (> 8.0 g/dL) in 6 of 26 (23%) cats, and a concurrently elevated PCV ...
... and no cat was hypertensive. The PCV and blood total solids concentration were less than the lower reference limit of 29% and 6.0 g/dL in 4 of 26 (15%) and 1 of 26 (4%) cats, respectively. Blood total solids concentrations were high (> 8.0 g/dL) in 6 of 26 (23%) cats, and a concurrently elevated PCV ...
Anomalous Origin of the Left Coronary Artery
... The recovery of the ventricular function, even in damaged myocardia, is the rule. An aggressive and early surgical approach is justified, since it represents the only viable possibility to save the hibernating myocardium. The mitral valve improves its function in a high percentage that is why routin ...
... The recovery of the ventricular function, even in damaged myocardia, is the rule. An aggressive and early surgical approach is justified, since it represents the only viable possibility to save the hibernating myocardium. The mitral valve improves its function in a high percentage that is why routin ...
Functional Anatomy of the Heart of Reptiles Fred N. White
... systemic and pulmonary venous blood through reptilian hearts. The lacertilian right aortic arch contains blood from the pulmonary, and the left from the pulmonary or sometimes both pulmonary and systemic veins. Traces made of the pressure and blood flow show that the lacertilian and chelonian cava v ...
... systemic and pulmonary venous blood through reptilian hearts. The lacertilian right aortic arch contains blood from the pulmonary, and the left from the pulmonary or sometimes both pulmonary and systemic veins. Traces made of the pressure and blood flow show that the lacertilian and chelonian cava v ...
Advances in Arrhythmia and Electrophysiology
... The online-only Data Supplement is available at http://circep.ahajournals.org/lookup/suppl/doi:10.1161/CIRCEP.111.962720/-/DC1. Correspondence to Siew Yen Ho, PhD, FRCPath, Cardiac Morphology Unit, Children’s Services, Royal Brompton Hospital, Sydney St, London SW3 ...
... The online-only Data Supplement is available at http://circep.ahajournals.org/lookup/suppl/doi:10.1161/CIRCEP.111.962720/-/DC1. Correspondence to Siew Yen Ho, PhD, FRCPath, Cardiac Morphology Unit, Children’s Services, Royal Brompton Hospital, Sydney St, London SW3 ...
Echocardiographic Effects of Eplerenone and Aldosterone in
... Figure 3. interval plot Cardiac index comparison between SHR and WKY strains over time. criteria for Grade I diastolic dysfunction (12). The calculation of index of myocardial performance (Tei Index) used aortic ejection time (ET) and mitral valve closure to opening time (MCO) (12). MCO is the sum o ...
... Figure 3. interval plot Cardiac index comparison between SHR and WKY strains over time. criteria for Grade I diastolic dysfunction (12). The calculation of index of myocardial performance (Tei Index) used aortic ejection time (ET) and mitral valve closure to opening time (MCO) (12). MCO is the sum o ...
www.XtremePapers.net
... programme to eradicate smallpox and as part of the continuing programmes against diseases such as polio and measles. Smallpox was eradicated from the world in the 1970s. Polio is likely to be the next infectious disease to be eradicated. TB and malaria continue to be important diseases. Explain how ...
... programme to eradicate smallpox and as part of the continuing programmes against diseases such as polio and measles. Smallpox was eradicated from the world in the 1970s. Polio is likely to be the next infectious disease to be eradicated. TB and malaria continue to be important diseases. Explain how ...
Heart Physiology
... Electrical Event resulting in Mechanical Event ECG (measurement of electrical event) P = atrial depolarization QRS = ventricular depolarization T = ventricular repolarization ...
... Electrical Event resulting in Mechanical Event ECG (measurement of electrical event) P = atrial depolarization QRS = ventricular depolarization T = ventricular repolarization ...
Marfan Syndrome Guide
... When the walls of the aorta weaken or stretch, there is an increased risk of aortic aneurysm, aortic dissection or rupture (bursting). All portions of the aorta can dilate or dissect. These conditions can result in a medical emergency and in some cases are life-threatening. (See next page for more i ...
... When the walls of the aorta weaken or stretch, there is an increased risk of aortic aneurysm, aortic dissection or rupture (bursting). All portions of the aorta can dilate or dissect. These conditions can result in a medical emergency and in some cases are life-threatening. (See next page for more i ...
Advances 22/1 - Advances in Physiology Education
... e developed a laboratory exercise that involves the construction and subsequent manipulation of a model of the cardiovascular system. The laboratory was designed to engage students in interactive, inquiry-based learning and to stimulate interest for future science study. The model presents a concret ...
... e developed a laboratory exercise that involves the construction and subsequent manipulation of a model of the cardiovascular system. The laboratory was designed to engage students in interactive, inquiry-based learning and to stimulate interest for future science study. The model presents a concret ...
Blood Pressure
... – Hypertrophic cardiomyopathy: Overgrowth of heart muscle – Restrictive cardiomyopathy: Ventricles stiffen and do not fill normally Treatment: – Drug therapy (ACE inhibitors, anticoagulants, diuretics) ...
... – Hypertrophic cardiomyopathy: Overgrowth of heart muscle – Restrictive cardiomyopathy: Ventricles stiffen and do not fill normally Treatment: – Drug therapy (ACE inhibitors, anticoagulants, diuretics) ...
What do we know about the natural history of severe symptomatic
... After hypertension and coronary artery disease, aortic valve stenosis (AS) is the most frequent cardiovascular disease. AS is increasingly observed in octogenarians and even in nonagenarians. The prevalence of AS is currently reported to be 2.5% at the age of 75 years and almost 8% at 85 years [1] . ...
... After hypertension and coronary artery disease, aortic valve stenosis (AS) is the most frequent cardiovascular disease. AS is increasingly observed in octogenarians and even in nonagenarians. The prevalence of AS is currently reported to be 2.5% at the age of 75 years and almost 8% at 85 years [1] . ...
Radiology Packet 1 - University of Prince Edward Island
... A large, ~ 6cm circular mass is present in the dorsal part of the left caudal lung lobe.The mass has a radiolucent center surrounded by a soft-tissue opacity outer portion. A second small mass, about 4cm x 3cm is present in the dorsal portion of the right cranial lung lobe. The mass also has a radio ...
... A large, ~ 6cm circular mass is present in the dorsal part of the left caudal lung lobe.The mass has a radiolucent center surrounded by a soft-tissue opacity outer portion. A second small mass, about 4cm x 3cm is present in the dorsal portion of the right cranial lung lobe. The mass also has a radio ...
Pericardial Disease
... Patients have larger effusion Patients have a suspected cause other than idiopathic ...
... Patients have larger effusion Patients have a suspected cause other than idiopathic ...
! General introduction Taco Kind
... to distention and recruitment if pressure increases. In PAH, however, resistance in these vessel can hardly be reduced due to medial hypertrophy10 and because most vessels have already been recruited11. As a consequence, total resting resistance is high and arterial compliance is low in PAH. The pre ...
... to distention and recruitment if pressure increases. In PAH, however, resistance in these vessel can hardly be reduced due to medial hypertrophy10 and because most vessels have already been recruited11. As a consequence, total resting resistance is high and arterial compliance is low in PAH. The pre ...
Required Changes to Prior Submission
... both contraction and relaxation. During the relaxation phase of the heart cycle the left ventricle actively rests – that is, proteins that were actively squeezed together during contraction now passively expand and push the ventricular chamber open (think squeezing a stress ball tightly then releasi ...
... both contraction and relaxation. During the relaxation phase of the heart cycle the left ventricle actively rests – that is, proteins that were actively squeezed together during contraction now passively expand and push the ventricular chamber open (think squeezing a stress ball tightly then releasi ...
Tunnel Subaortic Stenosis
... tional class I), seven patients were in functional class II, and one patient was in functional class III (table 1). The most common symptoms were dyspnea or fatigue with exertion (six patients), chest pain that was not typical of angina pectoris (four patients), typical angina pectoris (one patient) ...
... tional class I), seven patients were in functional class II, and one patient was in functional class III (table 1). The most common symptoms were dyspnea or fatigue with exertion (six patients), chest pain that was not typical of angina pectoris (four patients), typical angina pectoris (one patient) ...
Not All Chest Pain is Created Equal
... inspiration, not related to exertion and much worse with recumbency. The patient has not traveled recently, nor sustained any trauma to his thorax or his lower extremities. On examination, he appears well, but looks mildly uncomfortable due to his chest pain. His blood pressure is 130/80 mmHg in bot ...
... inspiration, not related to exertion and much worse with recumbency. The patient has not traveled recently, nor sustained any trauma to his thorax or his lower extremities. On examination, he appears well, but looks mildly uncomfortable due to his chest pain. His blood pressure is 130/80 mmHg in bot ...
Bronchial Obstruction Due to Pulmonary Artery Anomalies
... originally published in Circulation can be obtained via RightsLink, a service of the Copyright Clearance Center, not the Editorial Office. Once the online version of the published article for which permission is being requested is located, click Request Permissions in the middle column of the Web pa ...
... originally published in Circulation can be obtained via RightsLink, a service of the Copyright Clearance Center, not the Editorial Office. Once the online version of the published article for which permission is being requested is located, click Request Permissions in the middle column of the Web pa ...
Volume Changes in Painful and Painless Myocardial
... the occurrence of cardiac pain. Changes in left ventricular volume were continuously assessed in 12 patients during 11 spontaneous (two painful) and 12 ergometrine-induced (nine painful) ischemic attacks with a precordial scintillation probe and blood pool labeling with technetium99m. In all ischemi ...
... the occurrence of cardiac pain. Changes in left ventricular volume were continuously assessed in 12 patients during 11 spontaneous (two painful) and 12 ergometrine-induced (nine painful) ischemic attacks with a precordial scintillation probe and blood pool labeling with technetium99m. In all ischemi ...
Left ventricular wall mechanics in hypertension
... arterial resistance. Afterload is never constant during ventricular ejection, but continuously decline as the LV volume and mid wall radius decrease as predicted by Laplace relations i.e = P x r/ Th where = wall stress / tension, P = pressure, r = radius of LV and Th = thickness of LV wall. This typ ...
... arterial resistance. Afterload is never constant during ventricular ejection, but continuously decline as the LV volume and mid wall radius decrease as predicted by Laplace relations i.e = P x r/ Th where = wall stress / tension, P = pressure, r = radius of LV and Th = thickness of LV wall. This typ ...
Assessment of left ventricular diastolic function in bronchial asthma
... significant increase in CK-MB not associated with ...
... significant increase in CK-MB not associated with ...
Understanding your child`s heart Large ventricular septal defect
... which it is difficult for the surgeon to reach. It is possible to help these babies by a less complicated operation called pulmonary artery banding. Your child will have a general anaesthetic. This surgery involves placing a band around the pulmonary artery to narrow it. This is done without using ...
... which it is difficult for the surgeon to reach. It is possible to help these babies by a less complicated operation called pulmonary artery banding. Your child will have a general anaesthetic. This surgery involves placing a band around the pulmonary artery to narrow it. This is done without using ...
Mechanisms And Prevention Of TAVI
... considered procedure related [11, 25]. A vast majority of patients undergoing TAVI have multiple cardiovascular risk factors including hypertension, hyperlipidemia, a history of smoking, and diabetes mellitus, which often lead to atherosclerotic disease in this aged patient population. Thus, it is c ...
... considered procedure related [11, 25]. A vast majority of patients undergoing TAVI have multiple cardiovascular risk factors including hypertension, hyperlipidemia, a history of smoking, and diabetes mellitus, which often lead to atherosclerotic disease in this aged patient population. Thus, it is c ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.