bioii ch15 ppt
... Contractility • Myocardial contractility, the strength of contraction at any given preload, is affected by positive and negative inotropic agents. – Positive inotropic agents increase contractility – Negative inotropic agents decrease contractility. ...
... Contractility • Myocardial contractility, the strength of contraction at any given preload, is affected by positive and negative inotropic agents. – Positive inotropic agents increase contractility – Negative inotropic agents decrease contractility. ...
CardioCase of the Month - STA HealthCare Communications
... Cardiac CT scan and nuclear scan can be used to assess RV function and structure. RV angiography Findings consistent with ARVD are an akinetic or dyskinetic bulging localized to the infundibular, apical and subtricuspid regions of the RV. The specificity is 90%; however, the test is observer depende ...
... Cardiac CT scan and nuclear scan can be used to assess RV function and structure. RV angiography Findings consistent with ARVD are an akinetic or dyskinetic bulging localized to the infundibular, apical and subtricuspid regions of the RV. The specificity is 90%; however, the test is observer depende ...
Cardiac Conditions - Kentucky Academy of Family Physicians
... Excessive exertional and unexplained dyspnea/fatigue, associated with exercise Prior recognition of a heart murmur Elevated systemic blood pressure *Parental verification is recommended for high school and middle school athletes †Judged not to be neurocardiogenic (vasovagal); of particular con ...
... Excessive exertional and unexplained dyspnea/fatigue, associated with exercise Prior recognition of a heart murmur Elevated systemic blood pressure *Parental verification is recommended for high school and middle school athletes †Judged not to be neurocardiogenic (vasovagal); of particular con ...
Hypertensive Vascular Disease
... immediately below the pulmonary valve, or thickening of the moderator ...
... immediately below the pulmonary valve, or thickening of the moderator ...
Cerebral Protection During MitraClip Implantation
... potentially conducive to cerebrovascular events was found in all patients. Debris was composed most often of acute thrombus, foreign material likely originating from the hydrophilic device coating, and valve/atrial wall tissue. Further studies are warranted to assess the impact of cerebral protectio ...
... potentially conducive to cerebrovascular events was found in all patients. Debris was composed most often of acute thrombus, foreign material likely originating from the hydrophilic device coating, and valve/atrial wall tissue. Further studies are warranted to assess the impact of cerebral protectio ...
Morphological and Functional Modeling of the Heart Valves and
... valve while Soncini et al. (2009) presented a realistic finite element model of the physiological aortic root from medical imaging data. Kunzelman et al. (2007) introduced the first three-dimensional finite element model of the mitral valve. Votta et al. (2008) presented an extended mitral valve mod ...
... valve while Soncini et al. (2009) presented a realistic finite element model of the physiological aortic root from medical imaging data. Kunzelman et al. (2007) introduced the first three-dimensional finite element model of the mitral valve. Votta et al. (2008) presented an extended mitral valve mod ...
Chapter 12 * Cardiovascular System
... Valves are supported by strong fibrous strings called chordae tendineae ...
... Valves are supported by strong fibrous strings called chordae tendineae ...
Thrombolysis
... treatment in 10–30% of patients, and 0.5–4% is diagnosed with chronic thromboembolic pulmonary hypertension (CTEPH) which represents the most severe long term complication of acute PE. From these numbers, it seems that CTEPH itself is the extreme manifestation of a much more common phenomenon of per ...
... treatment in 10–30% of patients, and 0.5–4% is diagnosed with chronic thromboembolic pulmonary hypertension (CTEPH) which represents the most severe long term complication of acute PE. From these numbers, it seems that CTEPH itself is the extreme manifestation of a much more common phenomenon of per ...
Atrial Baffle Stenosis: A Late Complication after Mustard Repair for d
... of the bulboventricular loop and ventriculoarterial discordance (1). Due to failure of spiral septation of the truncus arteriosus, the great arteries course parallel to each other rather than crossing. The aorta arises from the morphologic right ventricle and the main pulmonary artery from the morph ...
... of the bulboventricular loop and ventriculoarterial discordance (1). Due to failure of spiral septation of the truncus arteriosus, the great arteries course parallel to each other rather than crossing. The aorta arises from the morphologic right ventricle and the main pulmonary artery from the morph ...
Tetralogy of Fallot
... pumping chambers of the heart. The right ventricle pumps blood to the lungs to receive oxygen and the left ventricle pumps this oxygenated blood out of heart to the body. A VSD is a “hole” (an opening) in the wall between these two pumping chambers. This causes oxygen-rich blood to leak from the lef ...
... pumping chambers of the heart. The right ventricle pumps blood to the lungs to receive oxygen and the left ventricle pumps this oxygenated blood out of heart to the body. A VSD is a “hole” (an opening) in the wall between these two pumping chambers. This causes oxygen-rich blood to leak from the lef ...
Q and A: Tetralogy of Fallot - Canadian Congenital Heart Alliance
... and tricuspid valves may also leak (for more details, see below). How would I know if I have a problem with a leaky valve? A leaky valve can be a sneaky valve! There are often few or no symptoms to alert you. The first sign can often be rhythm problems, like an unusually fast heartbeat or feeling y ...
... and tricuspid valves may also leak (for more details, see below). How would I know if I have a problem with a leaky valve? A leaky valve can be a sneaky valve! There are often few or no symptoms to alert you. The first sign can often be rhythm problems, like an unusually fast heartbeat or feeling y ...
Electric properties of cardiac muscles
... Phase 4: entering Na+ through funny channels (no K+ go out) and last third part of this phase sodium will stop and Ca++ begins to enter the myocyte thought transit channels (T- channels). Why it is called funny channel? Because sodium enter during hyperpolarization Function of phase 4: Sympathetic ...
... Phase 4: entering Na+ through funny channels (no K+ go out) and last third part of this phase sodium will stop and Ca++ begins to enter the myocyte thought transit channels (T- channels). Why it is called funny channel? Because sodium enter during hyperpolarization Function of phase 4: Sympathetic ...
Assessment of Heart and Neck Vessels ANATOMY AND
... PRELOAD. Preload refers to the degree of myocardial fiber stretch at the end of diastole and just before contraction. The stretch imposed on the muscle fibers results from the volume contained within the ventricle at the end of diastole. Preload is determined by left ventricular end-diastolic (LVED) ...
... PRELOAD. Preload refers to the degree of myocardial fiber stretch at the end of diastole and just before contraction. The stretch imposed on the muscle fibers results from the volume contained within the ventricle at the end of diastole. Preload is determined by left ventricular end-diastolic (LVED) ...
Pathogenesis of heart failure
... (A) In left HF, the pulmonary venous pressure will increase, pulmonary congestion and edema will occur. (B) In right HF, the systemic venous pressure will increase . ...
... (A) In left HF, the pulmonary venous pressure will increase, pulmonary congestion and edema will occur. (B) In right HF, the systemic venous pressure will increase . ...
Transcatheter mitral valve (MV) repair is a potential alternative to
... functional class III-IV symptoms and severe LV dysfunction who have chronic severe MR due to a primary abnormality of the mitral apparatus and have a high likelihood of successful MV repair. Standard open MV repair includes quadrangular leaf resection (if MV prolapse is present), transposition of no ...
... functional class III-IV symptoms and severe LV dysfunction who have chronic severe MR due to a primary abnormality of the mitral apparatus and have a high likelihood of successful MV repair. Standard open MV repair includes quadrangular leaf resection (if MV prolapse is present), transposition of no ...
A Rare Cause of Dyspnea: Left Atrial Myxoma Mimicking Pulmonary
... diagnosis, in our case pulmonary embolism with typically clinical symptoms was diagnosed as a priority in the emergency department. Despite the advanced age, the patient previosly had no cardiac disease. Atrial myxoma were diagnosed by pulmonary CT angiography incidentally. CT, magnetic resonance im ...
... diagnosis, in our case pulmonary embolism with typically clinical symptoms was diagnosed as a priority in the emergency department. Despite the advanced age, the patient previosly had no cardiac disease. Atrial myxoma were diagnosed by pulmonary CT angiography incidentally. CT, magnetic resonance im ...
Chapter 5 Clinical Assessment Of cardiovascular Structure
... There is no perfect measure for left ventricular (LV) function due to its complex volumetric and geometric functions. In addition, an assessment of ventricular ejection is sensitive to changes in ventricular loading conditions. The routinely used parameters to assess systolic function are the ejecti ...
... There is no perfect measure for left ventricular (LV) function due to its complex volumetric and geometric functions. In addition, an assessment of ventricular ejection is sensitive to changes in ventricular loading conditions. The routinely used parameters to assess systolic function are the ejecti ...
cardiovascular changes during pregnancy
... changes put pregnant women, especially those with heart disease, at an increased risk of volume overload and pulmonary edema. Cardiac output may take up to 6 months to return to pre-pregnancy levels (9). Structural Changes to the Heart and Blood Vessels A number of structural and functional changes ...
... changes put pregnant women, especially those with heart disease, at an increased risk of volume overload and pulmonary edema. Cardiac output may take up to 6 months to return to pre-pregnancy levels (9). Structural Changes to the Heart and Blood Vessels A number of structural and functional changes ...
cardiac output
... VENOUS RETURN TO THE HEART iv). Increased Sympathetic Vasoconstriction • Sympathetic Stimulation causes vasoconstriction, which increases venous pressure and drives more blood to right atrium, therefore, more venous returns and increase EDV. v). Cardiac suction effect • Heart plays role in its own ...
... VENOUS RETURN TO THE HEART iv). Increased Sympathetic Vasoconstriction • Sympathetic Stimulation causes vasoconstriction, which increases venous pressure and drives more blood to right atrium, therefore, more venous returns and increase EDV. v). Cardiac suction effect • Heart plays role in its own ...
2011 crit care us- heart
... darker and present in more than one view, often all around the heart) and pleural effusions (look at the lung base!). The diagnosis of cardiac tamponade requires not just an effusion but also: • A shocked patient (tamponade is a clinical diagnosis) • The demonstration of tamponade physiology, either ...
... darker and present in more than one view, often all around the heart) and pleural effusions (look at the lung base!). The diagnosis of cardiac tamponade requires not just an effusion but also: • A shocked patient (tamponade is a clinical diagnosis) • The demonstration of tamponade physiology, either ...
Complete valvular heart apparatus model from
... modeling and simulation, which will promote personalized, preventive and predictive healthcare. However, the majority of cardiac models to date are focused on representation of the left or right ventricle (Fritz et al., 2006), while very few include the left and right atrium (Zheng et al., 2008; Lor ...
... modeling and simulation, which will promote personalized, preventive and predictive healthcare. However, the majority of cardiac models to date are focused on representation of the left or right ventricle (Fritz et al., 2006), while very few include the left and right atrium (Zheng et al., 2008; Lor ...
Should right heart catheterization be realized in patients with a
... Swan-Ganz catheter (Edwards Lifesciences, CA, USA) introduced inside a 8 F Fast-Cath™ Ramp guiding introducer (St Jude Medical, MN, USA) positioned in front of the tricuspid mechanical prosthesis through the right femoral vein. (B) Extracorporeal reproduction and fluoroscopic view of a 0.025 inch St ...
... Swan-Ganz catheter (Edwards Lifesciences, CA, USA) introduced inside a 8 F Fast-Cath™ Ramp guiding introducer (St Jude Medical, MN, USA) positioned in front of the tricuspid mechanical prosthesis through the right femoral vein. (B) Extracorporeal reproduction and fluoroscopic view of a 0.025 inch St ...
hypertrophic obstructive cardiomyopathy
... disorganized and chaotic. This disorganized pattern can disrupt the heart’s rhythm resulting in irregular beats. 3. The left ventricle becomes stiff. The disorganized cells prevent the muscle from relaxing and stretching, reducing the amount of blood that can fill the heart. When less blood is pumpe ...
... disorganized and chaotic. This disorganized pattern can disrupt the heart’s rhythm resulting in irregular beats. 3. The left ventricle becomes stiff. The disorganized cells prevent the muscle from relaxing and stretching, reducing the amount of blood that can fill the heart. When less blood is pumpe ...
CVS - Notes For ANZCA Primary Exam
... CV01 [Mar96] [Jul97] [Mar99] [Feb00] [Jul01] [Jul02] [Feb04] In a normal cardiac cycle: A. RA systole precedes LA systole B. RV ejection precedes LV ejection in expiration C. RV contraction precedes LV contraction in inspiration D. Pulmonary valve closes after aortic in inspiration E. Pulmonary valv ...
... CV01 [Mar96] [Jul97] [Mar99] [Feb00] [Jul01] [Jul02] [Feb04] In a normal cardiac cycle: A. RA systole precedes LA systole B. RV ejection precedes LV ejection in expiration C. RV contraction precedes LV contraction in inspiration D. Pulmonary valve closes after aortic in inspiration E. Pulmonary valv ...
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.