The Heart - USD Biology
... equilibrates through the foramen of Panizza. This keeps the left aortic pressure high enough to keep the left aortic valve closed. During ventricular contraction, a cusp on the aortic valve of the right aorta closes the foramen of Pinazza. The pressure generated by the right ventricle (low pressure ...
... equilibrates through the foramen of Panizza. This keeps the left aortic pressure high enough to keep the left aortic valve closed. During ventricular contraction, a cusp on the aortic valve of the right aorta closes the foramen of Pinazza. The pressure generated by the right ventricle (low pressure ...
Cardiac Defects: Tetralogy of Fallot Tetralogy of Fallot has four
... body and lungs. Overriding aorta—The aorta, the large artery that takes blood to the body, is on top of both ventricles, instead of just the left ventricle as in a normal heart. Pulmonary stenosis—There is a narrowing of the pulmonary valve, the area below the valve, or the pulmonary arteries, w ...
... body and lungs. Overriding aorta—The aorta, the large artery that takes blood to the body, is on top of both ventricles, instead of just the left ventricle as in a normal heart. Pulmonary stenosis—There is a narrowing of the pulmonary valve, the area below the valve, or the pulmonary arteries, w ...
Document
... • Here an anatomically abnormal bundle of cardiac muscle joins the atria to the ventricles, bypassing the AV node. • Thus the ventricles may be excited prematurely via this short circuit in addition to the normal pathway via the AV node to the bundle of His. • Following excitation via the latter pa ...
... • Here an anatomically abnormal bundle of cardiac muscle joins the atria to the ventricles, bypassing the AV node. • Thus the ventricles may be excited prematurely via this short circuit in addition to the normal pathway via the AV node to the bundle of His. • Following excitation via the latter pa ...
IMPACT OF BODY MASS INDEX ON LEFT VENTRICULAR MASS
... M-mode echocardiography provides an accurate assessment of LVM that is more sensitive and specific than the electrocardiogram for detecting LVH15 which is an important prognostic finding to evaluate the high risk of subsequent cardiovascular morbidity and mortality14–16. The invasive biplane angiogr ...
... M-mode echocardiography provides an accurate assessment of LVM that is more sensitive and specific than the electrocardiogram for detecting LVH15 which is an important prognostic finding to evaluate the high risk of subsequent cardiovascular morbidity and mortality14–16. The invasive biplane angiogr ...
Relationship of Mitral Annular Plane Systolic Excursion
... problems, acute myocardial infarction, atrial fibrillation/flutter, severe systolic dysfunction, severe arterial hypertension, valvular disease, and/or mechanical valves. Results: Mean patient age was 58.1±12.7 years and 69% were men. Mean LV EF was 39.1±6.4%, while mean value of average MAPSE was 9 ...
... problems, acute myocardial infarction, atrial fibrillation/flutter, severe systolic dysfunction, severe arterial hypertension, valvular disease, and/or mechanical valves. Results: Mean patient age was 58.1±12.7 years and 69% were men. Mean LV EF was 39.1±6.4%, while mean value of average MAPSE was 9 ...
Etiology,Natural History,Pathophysiology,Symptoms,Signs of Mitral
... Class I:: Conditions for which there is evidence for and/or general agreement that the procedure or treatment is beneficial,, useful,, and effective.. Class II:: Conditions for which there is conflicting evidence and/or a divergence of opinion about the usefulness/efficacy of a procedure or treatm ...
... Class I:: Conditions for which there is evidence for and/or general agreement that the procedure or treatment is beneficial,, useful,, and effective.. Class II:: Conditions for which there is conflicting evidence and/or a divergence of opinion about the usefulness/efficacy of a procedure or treatm ...
automatic external defibrillators
... The sudden cardiac arrest victim will die without rapid intervention. Used properly, the AED can only help. What if the device fails to work? If you properly maintain your device, a malfunction is highly unlikely. However, if the device should fail to work, do CPR until help arrives and contact the ...
... The sudden cardiac arrest victim will die without rapid intervention. Used properly, the AED can only help. What if the device fails to work? If you properly maintain your device, a malfunction is highly unlikely. However, if the device should fail to work, do CPR until help arrives and contact the ...
Cardiovascular Magnetic Resonance Evaluation of Patients with
... ejection fraction of 55% and an LV ejection fraction of 60%. The interventricular septum was flattened and bowed towards the LV during systole. The stroke volumes in the pulmonary and systemic circulations were equal, suggesting that there was no left-to-right or right-to-left shunt. By combining vo ...
... ejection fraction of 55% and an LV ejection fraction of 60%. The interventricular septum was flattened and bowed towards the LV during systole. The stroke volumes in the pulmonary and systemic circulations were equal, suggesting that there was no left-to-right or right-to-left shunt. By combining vo ...
Treatment Of Heart Failure With Normal Ejection Fraction
... - more sensitive (bio)marker of systolic and diastolic function - more specific pathophysiological features characterizing HFNEF ...
... - more sensitive (bio)marker of systolic and diastolic function - more specific pathophysiological features characterizing HFNEF ...
Noninvasive Assessment of Myocardial Composition
... conditions is an important compensatory mechanism that tends to minimize abnormalities in myocardial stress related to the inciting load.4 However, recent See p 925 studies have indicated that hypertrophied muscle differs from normal muscle in many respects, including its structure, mechanical prope ...
... conditions is an important compensatory mechanism that tends to minimize abnormalities in myocardial stress related to the inciting load.4 However, recent See p 925 studies have indicated that hypertrophied muscle differs from normal muscle in many respects, including its structure, mechanical prope ...
Cardiovascular System Prof. Dr. Malak A. Al
... Cardiac progenitor cells lie in the epiblast, lateral to the primitive streak. From there they migrate through the streak. Cells destined to form cranial segments of the heart( the outflow tract) migrate first, and cells forming more caudal portions( right ventricle, left ventricle, and sinus venosu ...
... Cardiac progenitor cells lie in the epiblast, lateral to the primitive streak. From there they migrate through the streak. Cells destined to form cranial segments of the heart( the outflow tract) migrate first, and cells forming more caudal portions( right ventricle, left ventricle, and sinus venosu ...
Inferior and Rt Vent MI ppt
... infusion) may cause shifting of the septum into the left ventricle which then impairs left ventricular filling and function. ...
... infusion) may cause shifting of the septum into the left ventricle which then impairs left ventricular filling and function. ...
Supplementary Information (doc 58K)
... using echocardiography machine (Nemio, Toshiba Co., Tokyo, Japan) 1 week before and 3, 6, 9, 12, 15 and 20 weeks after the creation of the suprarenal aortic constriction (SAC) model. Rats were lightly sedated with the lowest possible dose of isoflurane (initially 4%, then approximately 2-3%) mixed w ...
... using echocardiography machine (Nemio, Toshiba Co., Tokyo, Japan) 1 week before and 3, 6, 9, 12, 15 and 20 weeks after the creation of the suprarenal aortic constriction (SAC) model. Rats were lightly sedated with the lowest possible dose of isoflurane (initially 4%, then approximately 2-3%) mixed w ...
2. CARDIAC CYCLE
... A fourth heart sound (S4) is abnormal and is associated with the end of atrial emptying after atrial contraction. It occurs with hypertrophic congestive heart failure, massive pulmonary embolism, tricuspid incompetence, or cor pulmonale. ...
... A fourth heart sound (S4) is abnormal and is associated with the end of atrial emptying after atrial contraction. It occurs with hypertrophic congestive heart failure, massive pulmonary embolism, tricuspid incompetence, or cor pulmonale. ...
2. CARDIAC CYCLE - badripaudel.com
... The electrical impulse propagates from the AV node through the His bundle and Purkinje system to allow the ventricles to contract from the apex of the heart towards the base. The QRS complex is due to ventricular depolarization, and it marks the beginning of ventricular systole. It is so large that ...
... The electrical impulse propagates from the AV node through the His bundle and Purkinje system to allow the ventricles to contract from the apex of the heart towards the base. The QRS complex is due to ventricular depolarization, and it marks the beginning of ventricular systole. It is so large that ...
Назва наукового напрямку (модуля): Семестр: 10 Ішемічна
... Such a normal QRS A similar blockade of the right bundle branch block legs Similar regulations Similar to symptoms of acute coronary syndrome When endocardial electrode dislocation: Burst stimulator is realized in part, or all Accelerated heart rhythm The rhythm of the heart does not change I get pa ...
... Such a normal QRS A similar blockade of the right bundle branch block legs Similar regulations Similar to symptoms of acute coronary syndrome When endocardial electrode dislocation: Burst stimulator is realized in part, or all Accelerated heart rhythm The rhythm of the heart does not change I get pa ...
Mitral Valve Prolapse
... pumping action. This allows the blood to move in a forward direction. The mitral valve is a heart valve made of 2 tissue flaps, called leaflets, which open and close. It is located between the upper chamber (atrium) and lower chamber (ventricle) on the left side of the heart. When one or both of the ...
... pumping action. This allows the blood to move in a forward direction. The mitral valve is a heart valve made of 2 tissue flaps, called leaflets, which open and close. It is located between the upper chamber (atrium) and lower chamber (ventricle) on the left side of the heart. When one or both of the ...
Downloaded - AJP
... contribute significantly to ventricular filling, as KE was preserved in rotational flow patterns of right atrial blood [Arvidsson et al. (3), Fig. 11]. Momentum contribution to cardiac function therefore remains an interesting concept with some support in data. Arutunyan notes, “During ventricular c ...
... contribute significantly to ventricular filling, as KE was preserved in rotational flow patterns of right atrial blood [Arvidsson et al. (3), Fig. 11]. Momentum contribution to cardiac function therefore remains an interesting concept with some support in data. Arutunyan notes, “During ventricular c ...
phys chapter 9 [12-11
... When ventricular contraction is over, AV valves open, allowing stored atrial blood to flow rapidly into ventricles, causing v wave to disappear Period of rapid filling of ventricles – after ventricles relax and sudden release of pressure on AV valves makes them open and allow blood to rapidly flow ...
... When ventricular contraction is over, AV valves open, allowing stored atrial blood to flow rapidly into ventricles, causing v wave to disappear Period of rapid filling of ventricles – after ventricles relax and sudden release of pressure on AV valves makes them open and allow blood to rapidly flow ...
JVP
... Prominent X and Y descent (FRIEDREICH`SIGN) Y descent is prominent as ventricular filling is unimpeded during early diastole. This is interrupted by a rapid raise in pressure as the filling is impeded by constricting Pericardium The Ventriclar pressure curve exhibit Square Root sign ...
... Prominent X and Y descent (FRIEDREICH`SIGN) Y descent is prominent as ventricular filling is unimpeded during early diastole. This is interrupted by a rapid raise in pressure as the filling is impeded by constricting Pericardium The Ventriclar pressure curve exhibit Square Root sign ...
2011 crit care us- heart
... This is achieved after the apical four chamber view by rotating the transducer approximately 45 to 90 degrees anticlockwise: probe marker to 12 o’clock. This visualizes the true anterior and true inferior walls of the left ventricle which is important for the assessment of regional wall motion abnor ...
... This is achieved after the apical four chamber view by rotating the transducer approximately 45 to 90 degrees anticlockwise: probe marker to 12 o’clock. This visualizes the true anterior and true inferior walls of the left ventricle which is important for the assessment of regional wall motion abnor ...
Dysrhythmias of the AV Node and Ventricles notes
... o Temporary with external box or pulse generator o Permanent with internal pulse generator Pacing leads can be placed in o Right ventricle o Right atrium Demand Pacing The pacemaker senses the client’s own heart beat and fires an impulse only when the heart needs it. This is the mode that pace ...
... o Temporary with external box or pulse generator o Permanent with internal pulse generator Pacing leads can be placed in o Right ventricle o Right atrium Demand Pacing The pacemaker senses the client’s own heart beat and fires an impulse only when the heart needs it. This is the mode that pace ...
CASE PRESENTATION
... • Chest pain (35%) ▫ most commonly described as a pleuritic, sharp, stabbing precordial pain ▫ may be substernal and squeezing ...
... • Chest pain (35%) ▫ most commonly described as a pleuritic, sharp, stabbing precordial pain ▫ may be substernal and squeezing ...
APPROACH TO CYANOTIC CONGENITAL HEART DISEASE IN
... A double-outlet right ventricle simply means both the aorta and pulmonary artery arise from the right ventricle, and the left ventricle outlet is through a large VSD. Patients may present with either heart failure or severe cyanosis. This condition is repaired with different types of surgery dependi ...
... A double-outlet right ventricle simply means both the aorta and pulmonary artery arise from the right ventricle, and the left ventricle outlet is through a large VSD. Patients may present with either heart failure or severe cyanosis. This condition is repaired with different types of surgery dependi ...
6. Development of circulatory system II. Cardiac looping. Septation
... o frequently associated with bicuspidal aortic valve o preductal type and postductal type o pressure gradient across the constricted area; post-stenotic dilatation o collateral circulation develops • internal thoracic artery → superior and inferior epigastric artery → external iliac artery • interco ...
... o frequently associated with bicuspidal aortic valve o preductal type and postductal type o pressure gradient across the constricted area; post-stenotic dilatation o collateral circulation develops • internal thoracic artery → superior and inferior epigastric artery → external iliac artery • interco ...
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.