Cardiac Arrhythmias
... Most of this 12-lead recording is polymorphic ventricular tachycardia but, in the rhythm strip, the large deflection (arrowed) is the defibrillator discharging. Following the defibrillation a dual chamber pacemaker can be seen. ...
... Most of this 12-lead recording is polymorphic ventricular tachycardia but, in the rhythm strip, the large deflection (arrowed) is the defibrillator discharging. Following the defibrillation a dual chamber pacemaker can be seen. ...
valvular heart disease and risk score systems in clinical practice
... disease, mainly represented by calcific aortic stenosis in the elderly. In developing countries, valvular heart disease triggered by rheumatic fever is the most important aetiology and can lead to a heterogeneous heart valve disease, mainly represented by mitral stenosis in young female patients. Th ...
... disease, mainly represented by calcific aortic stenosis in the elderly. In developing countries, valvular heart disease triggered by rheumatic fever is the most important aetiology and can lead to a heterogeneous heart valve disease, mainly represented by mitral stenosis in young female patients. Th ...
Minimally Invasive Mitral Valve Surgery
... Long-standing or chronic mitral valve disease or insufficiency causes backwards flow of blood into the left atrium (LA) and destructively increases pressure on the left ventricle and heart. Over time, the left atrium dilates as a response to the larger volume. This remodeling produces an increase in ...
... Long-standing or chronic mitral valve disease or insufficiency causes backwards flow of blood into the left atrium (LA) and destructively increases pressure on the left ventricle and heart. Over time, the left atrium dilates as a response to the larger volume. This remodeling produces an increase in ...
ventricular tachycardia
... beats [known as “arrhythmias”]) or may be a consequence of abnormalities of heart muscle associated with cardiomyopathy (disease of the heart muscle), significant heart-valve disease or inflammation of the heart muscle (known as “myocarditis”) Ventricular tachycardia is a common cause of irregular ...
... beats [known as “arrhythmias”]) or may be a consequence of abnormalities of heart muscle associated with cardiomyopathy (disease of the heart muscle), significant heart-valve disease or inflammation of the heart muscle (known as “myocarditis”) Ventricular tachycardia is a common cause of irregular ...
Assessment of Diastolic Function in Heart Failure and Atrial Fibrillation
... velocity curves with worsening disease has a clinical application: the prognosis of patients with either dilated or infiltrative cardiomyopathy is indicated by a short mitral deceleration time, with values below 140 ms indicating a poor outcome, independently of the degree of systolic dysfunction [1 ...
... velocity curves with worsening disease has a clinical application: the prognosis of patients with either dilated or infiltrative cardiomyopathy is indicated by a short mitral deceleration time, with values below 140 ms indicating a poor outcome, independently of the degree of systolic dysfunction [1 ...
Cardiogenic Shock
... Early revascularization, either PCI or CABG, is recommended for patients less than 75 years old with ST elevation or LBBB who develop shock within 36 hours of MI and who are suitable for revascularization that can be performed within 18 hours of shock unless further support is futile because of the ...
... Early revascularization, either PCI or CABG, is recommended for patients less than 75 years old with ST elevation or LBBB who develop shock within 36 hours of MI and who are suitable for revascularization that can be performed within 18 hours of shock unless further support is futile because of the ...
Critical Congenital Heart Disease
... Pulmonary edema: left-sided obstructive cardiac disease (aortic stenosis), cardiomyopathy Pulmonary fibrosis Decrease Hemoglobin O2 affinity Methemoglobinemia (congenital, drugs) Decrease Peripheral circulation (peripheral cyanosis) Sepsis, shock of any cause, polycythemia, hypothermia, hypoglycemia ...
... Pulmonary edema: left-sided obstructive cardiac disease (aortic stenosis), cardiomyopathy Pulmonary fibrosis Decrease Hemoglobin O2 affinity Methemoglobinemia (congenital, drugs) Decrease Peripheral circulation (peripheral cyanosis) Sepsis, shock of any cause, polycythemia, hypothermia, hypoglycemia ...
M cells
... in dogs by removal of the right stellate ganglion. In addition, anecdotal evidence suggested that some LQT patients are effectively treated by βadrenergic blocking agents and by left stellate ganglionectomy. The second hypothesis for LQT-related arrhythmias suggested that mutations in cardiac-specif ...
... in dogs by removal of the right stellate ganglion. In addition, anecdotal evidence suggested that some LQT patients are effectively treated by βadrenergic blocking agents and by left stellate ganglionectomy. The second hypothesis for LQT-related arrhythmias suggested that mutations in cardiac-specif ...
English
... In the past, the diagnosis of Uhl’s anomaly was usually made on autopsy. Currently, the development of graphic and imaging methods have made an early and more accurate clinical diagnosis possible, even though controversies about its etiopathogeny still remain. We report the case of a female infant w ...
... In the past, the diagnosis of Uhl’s anomaly was usually made on autopsy. Currently, the development of graphic and imaging methods have made an early and more accurate clinical diagnosis possible, even though controversies about its etiopathogeny still remain. We report the case of a female infant w ...
Investigation of distal aortic compliance and
... vasomotor responses and dynamic compliance in isolated abdominal aortae after chronic constriction of the ascending aorta. Guinea pigs underwent constriction of the ascending aorta or sham operation. Sections of descending aorta were removed for studies of contractile performance and compliance. Dyn ...
... vasomotor responses and dynamic compliance in isolated abdominal aortae after chronic constriction of the ascending aorta. Guinea pigs underwent constriction of the ascending aorta or sham operation. Sections of descending aorta were removed for studies of contractile performance and compliance. Dyn ...
Arrhythmias: Hyperfunction
... In normal heart, usually benign In heart disease, PVCs may decrease CO and precipitate angina and HF Patient’s response to PVCs must be monitored PVCs often do not generate a sufficient ventricular contraction to result in a peripheral pulse Apical-radial pulse rate should be assessed to determi ...
... In normal heart, usually benign In heart disease, PVCs may decrease CO and precipitate angina and HF Patient’s response to PVCs must be monitored PVCs often do not generate a sufficient ventricular contraction to result in a peripheral pulse Apical-radial pulse rate should be assessed to determi ...
when we talk about cardiac muscles we s
... - Gastrocnemius and Soleus muscles are called muscle pump “heart in the leg “when they contract, blood return upward. -Smooth muscle also has tone but it is myogenic not neurogenic. -NO summation in cardiac muscles due to the presence of gap junctions. ...
... - Gastrocnemius and Soleus muscles are called muscle pump “heart in the leg “when they contract, blood return upward. -Smooth muscle also has tone but it is myogenic not neurogenic. -NO summation in cardiac muscles due to the presence of gap junctions. ...
Regional Wall Motion Abnormalities During Early Diastole in
... with significant valvular disease, asymmetric septal hypertrophy, episode of congestive heart failure, renal dysfunction, or thyroid disease were excluded from this study. All patients were receiving one or more antihypertensive drugs. Medications included calcium-channel antagonists, angiotensin co ...
... with significant valvular disease, asymmetric septal hypertrophy, episode of congestive heart failure, renal dysfunction, or thyroid disease were excluded from this study. All patients were receiving one or more antihypertensive drugs. Medications included calcium-channel antagonists, angiotensin co ...
the surgical treatment of the tetralogy of fallot
... When the pulmonary stenosis is mild, whether the ventricular septal defect is small or large, a left-to-right shunt is always present, giving the clinical picture of a ventricular septal defect. On the other hand, if the stenosis is severe and the ventricular septal defect is small, anatomically or ...
... When the pulmonary stenosis is mild, whether the ventricular septal defect is small or large, a left-to-right shunt is always present, giving the clinical picture of a ventricular septal defect. On the other hand, if the stenosis is severe and the ventricular septal defect is small, anatomically or ...
Vital Sign Measurements
... Felt as double beats should be confirmed as bigeminy with ECG. Pulsus Paradoxus Inspiration decreases intrathoracic pressure, normally increasing blood flow into the chest and right ventricle. Despite the increased right ventricular stroke volume, inspiratory dilation of the pulmonary vasculature de ...
... Felt as double beats should be confirmed as bigeminy with ECG. Pulsus Paradoxus Inspiration decreases intrathoracic pressure, normally increasing blood flow into the chest and right ventricle. Despite the increased right ventricular stroke volume, inspiratory dilation of the pulmonary vasculature de ...
Cardiac Defects: Ventricular Septal Defect
... child is older. Diagnosis of a ventricular septal defect may require some or all of these tests: • echocardiogram (also called “echo” or ultrasound)— sound waves create an image of the heart • electrocardiogram (ECG)—a record of the electrical activity of the heart • chest X ray • cardiac cathet ...
... child is older. Diagnosis of a ventricular septal defect may require some or all of these tests: • echocardiogram (also called “echo” or ultrasound)— sound waves create an image of the heart • electrocardiogram (ECG)—a record of the electrical activity of the heart • chest X ray • cardiac cathet ...
BIOLOGY 2060 LECTURE NOTES
... c. LV BP is less than aortic BP. As a result, blood tries to back flow from the aorta into the LV and this forces the aortic semilunar valve closed. d. Neither atrial nor ventricular muscle is contracting. Both are in diastole. e. About 80% of the ultimate ventricular volume will enter in t ...
... c. LV BP is less than aortic BP. As a result, blood tries to back flow from the aorta into the LV and this forces the aortic semilunar valve closed. d. Neither atrial nor ventricular muscle is contracting. Both are in diastole. e. About 80% of the ultimate ventricular volume will enter in t ...
Reducing Heart Failure Hospital Readmissions: Are You
... Force that stretches muscle fibers of a resting heart – how much they are stretched just prior to contraction • What determines stretch? ...
... Force that stretches muscle fibers of a resting heart – how much they are stretched just prior to contraction • What determines stretch? ...
Heart rhythm at the time of death documented by an implantable
... causes received beta-blockers and diuretics significantly more often than those dying of non-cardiac causes. This is most likely explained by the difference in NYHA class at discharge, the prevalence of prior AMI, and the significantly higher frequency of preexisting congestive heart failure among p ...
... causes received beta-blockers and diuretics significantly more often than those dying of non-cardiac causes. This is most likely explained by the difference in NYHA class at discharge, the prevalence of prior AMI, and the significantly higher frequency of preexisting congestive heart failure among p ...
The Adult With Congenital Heart Disease
... residual systemic hypertension, which is very common in such patients. Other late cardiovascular complications requiring subsequent surgery are common. In two series from the Mayo Clinic (8,10), the most common reason for re-operation was aortic valve replacement, but mitral valve repair or replacem ...
... residual systemic hypertension, which is very common in such patients. Other late cardiovascular complications requiring subsequent surgery are common. In two series from the Mayo Clinic (8,10), the most common reason for re-operation was aortic valve replacement, but mitral valve repair or replacem ...
Spontaneously terminating ventricular fibrillation and
... and asystole induced by silent ischaemia causing recurrent syncope M U A Mustafa, C S R Baker, J D Stephens ...
... and asystole induced by silent ischaemia causing recurrent syncope M U A Mustafa, C S R Baker, J D Stephens ...
Do Angiographic Characteristics Explain Racial Differences In
... pressure waveform may indicate over engagement of the catheter or significant vessel stenosis. Extreme care should be taken before instillation of contrast medium without normal pressure waveforms. ...
... pressure waveform may indicate over engagement of the catheter or significant vessel stenosis. Extreme care should be taken before instillation of contrast medium without normal pressure waveforms. ...
Transapical left ventricular access for difficult to reach
... with recurrence leading to shock. As this area of the left ventricle proved difficult to reach using conventional approaches, and because larger diameter and/or cooled ablation catheters would be required to deliver adequate energy for a clinical result, transapical access ...
... with recurrence leading to shock. As this area of the left ventricle proved difficult to reach using conventional approaches, and because larger diameter and/or cooled ablation catheters would be required to deliver adequate energy for a clinical result, transapical access ...
cardiovascular system
... 1: Apex is blunt and fused with the roots of the great vessels and the pericardium fascia behind the sternal angle. 2: Base is broad & lies on diaphragm and in seprably blended with the central of the diaphragm. But in lawer animal it is separated from diaphragm. 3: Anteriorly it is connected to the ...
... 1: Apex is blunt and fused with the roots of the great vessels and the pericardium fascia behind the sternal angle. 2: Base is broad & lies on diaphragm and in seprably blended with the central of the diaphragm. But in lawer animal it is separated from diaphragm. 3: Anteriorly it is connected to the ...
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.