The Heart: Part One
... and intraventricular pressure falls, blood flows back from arteries, filling the cusps of semilunar valves and forcing them to close. (b) Semilunar valves closed ...
... and intraventricular pressure falls, blood flows back from arteries, filling the cusps of semilunar valves and forcing them to close. (b) Semilunar valves closed ...
The Single Ventricle
... In 1958, Noonan and Nadas termed these lesions as “hypoplastic left heart syndrome”. ...
... In 1958, Noonan and Nadas termed these lesions as “hypoplastic left heart syndrome”. ...
cpr guidelines introduced
... victims 8 years of age of older. Child pads, if available, are recommended for use with children 1 to 8 years of age. The current recommendations do not include the use of an AED for unwitnessed arrests in children less than one year of age. ...
... victims 8 years of age of older. Child pads, if available, are recommended for use with children 1 to 8 years of age. The current recommendations do not include the use of an AED for unwitnessed arrests in children less than one year of age. ...
The Single Ventricle
... In 1958, Noonan and Nadas termed these lesions as “hypoplastic left heart syndrome”. ...
... In 1958, Noonan and Nadas termed these lesions as “hypoplastic left heart syndrome”. ...
a comparative doppler-catheterization study of the left ventricular
... age of 56 ± 11 and exclusion of patients with poor acoustic windows who may be obese. It is well known and also identified in this study that diabetes mellitus (DM), hypertension (Hpt) and females are associated with diastolic dysfunction, that is raised LVEDP. Patients with traditional risk factors ...
... age of 56 ± 11 and exclusion of patients with poor acoustic windows who may be obese. It is well known and also identified in this study that diabetes mellitus (DM), hypertension (Hpt) and females are associated with diastolic dysfunction, that is raised LVEDP. Patients with traditional risk factors ...
Tetralogy of Fallot | SpringerLink
... Anomalous origins of the coronary arteries occur in up to one-sixth of patients, and should be documented prior to surgical repair. The most common and relevant anomaly is origin of the left anterior descending artery from the right coronary artery, with the anomalous artery then coursing anterior t ...
... Anomalous origins of the coronary arteries occur in up to one-sixth of patients, and should be documented prior to surgical repair. The most common and relevant anomaly is origin of the left anterior descending artery from the right coronary artery, with the anomalous artery then coursing anterior t ...
Induced Pressure Gradients Across Infundibular Zone of Right
... the product of consistent increases of heart rate and stroke volume. When the infusion rate of isopropylarterenol was increased to 5.0 /ng/min, the average increase of the outflow-tract pressure gradient during systolic ejection was 19 mm Hg. The means of the differences between values obtained at t ...
... the product of consistent increases of heart rate and stroke volume. When the infusion rate of isopropylarterenol was increased to 5.0 /ng/min, the average increase of the outflow-tract pressure gradient during systolic ejection was 19 mm Hg. The means of the differences between values obtained at t ...
How to diagnose heart failure with preserved ejection fraction
... However, ejection fraction obtained by any modality is susceptible to changes related to altered loading conditions. A 10% test-retest variation in ejection fraction is common, implying that an ejection fraction of 45% today could be under 35% or over 55% tomorrow, possibly with no change in myocard ...
... However, ejection fraction obtained by any modality is susceptible to changes related to altered loading conditions. A 10% test-retest variation in ejection fraction is common, implying that an ejection fraction of 45% today could be under 35% or over 55% tomorrow, possibly with no change in myocard ...
Serum carnitine concentrations in patients with
... HCM subgroups were classified as follows : 36 patients with hypertrophic non-obstructive cardiomyopathy (HNCM), seven with hypertrophic obstructive cardiomyopathy (HOCM), and 13 with apical hypertrophic cardiomyopathy (APH). Twelve patients had a family history of HCM. The diagnosis of HCM was based ...
... HCM subgroups were classified as follows : 36 patients with hypertrophic non-obstructive cardiomyopathy (HNCM), seven with hypertrophic obstructive cardiomyopathy (HOCM), and 13 with apical hypertrophic cardiomyopathy (APH). Twelve patients had a family history of HCM. The diagnosis of HCM was based ...
Print - Circulation Research
... in heart rate affect the pump function curve in the appropriate manner; i.e., an increase in heart rate decreases the averaging period proportionally and vice versa. This is in contrast to relationships obtained by using values averaged over systole, values averaged over the ejection period, or peak ...
... in heart rate affect the pump function curve in the appropriate manner; i.e., an increase in heart rate decreases the averaging period proportionally and vice versa. This is in contrast to relationships obtained by using values averaged over systole, values averaged over the ejection period, or peak ...
Required Changes to Prior Submission
... Ventricular torsion has been measured using three methods. All three techniques are similar in that they essentially involve labelling cardiac muscle fibres and tracking their motion. One method, called implanted myocardial marking, involves physically attaching metallic markers on muscle fibres dur ...
... Ventricular torsion has been measured using three methods. All three techniques are similar in that they essentially involve labelling cardiac muscle fibres and tracking their motion. One method, called implanted myocardial marking, involves physically attaching metallic markers on muscle fibres dur ...
PDF file - Via Medica Journals
... days before the coronary artery by-pass grafting. Left ventricular contractility was assessed by analyzing the systolic increase in wall thickness, employing a division into 16 segments [3]. Wall motion score index (WMSI) was determined, assigning to each of the segments of the left ventricle a numb ...
... days before the coronary artery by-pass grafting. Left ventricular contractility was assessed by analyzing the systolic increase in wall thickness, employing a division into 16 segments [3]. Wall motion score index (WMSI) was determined, assigning to each of the segments of the left ventricle a numb ...
Acute Right Coronary Ostial Stenosis during Aortic Valve Replacement
... We report a rare case of acute right coronary artery stenosis developing in a patient undergoing aortic valve replacement. We present a case report with a brief overview of the literature relating to coronary artery occlusion associated with cardiac valve surgery – the theories and treatments are di ...
... We report a rare case of acute right coronary artery stenosis developing in a patient undergoing aortic valve replacement. We present a case report with a brief overview of the literature relating to coronary artery occlusion associated with cardiac valve surgery – the theories and treatments are di ...
The Cardiovascular System
... The left and right ventricles pump blood into the systemic and pulmonary arterial trees, respectively. Cardiac output, the volume of blood ejected from each ventricle during 1 minute, is the product of heart rate and stroke volume. Stroke volume (the volume of blood ejected with each heartbeat) depe ...
... The left and right ventricles pump blood into the systemic and pulmonary arterial trees, respectively. Cardiac output, the volume of blood ejected from each ventricle during 1 minute, is the product of heart rate and stroke volume. Stroke volume (the volume of blood ejected with each heartbeat) depe ...
Point of View Maladies Attributed to Myxomatous Mitral
... absence of severe mitral regurgitation and left ventricular dysfunction, the risk of sudden death in young people without ventricular dysrhythmias, syncope, or presyncope is so remote that patients should not be told of the possibility. Mitral Valve Prolapse Syndrome a When diagnosis of MVP is made ...
... absence of severe mitral regurgitation and left ventricular dysfunction, the risk of sudden death in young people without ventricular dysrhythmias, syncope, or presyncope is so remote that patients should not be told of the possibility. Mitral Valve Prolapse Syndrome a When diagnosis of MVP is made ...
Pulmonary Atresia Intact Ventricular Septum
... valve) Description based on the presence and/or absence of structures o Volume Estimated using the diameter of TV Smaller RV more likely to display signs of chronic hypertension and ischemia “Ebstein-like” variants 5-10% of cases Regurgitant TV leads to a large, dilated RV Coronary fis ...
... valve) Description based on the presence and/or absence of structures o Volume Estimated using the diameter of TV Smaller RV more likely to display signs of chronic hypertension and ischemia “Ebstein-like” variants 5-10% of cases Regurgitant TV leads to a large, dilated RV Coronary fis ...
Prosthetic Heart Valves
... million children and young adults; 90,000 patients die from this disease each year. The mortality rate from this disease remains 110% ...
... million children and young adults; 90,000 patients die from this disease each year. The mortality rate from this disease remains 110% ...
Anastomosis in Pulmonary Atresia with Intact Ventricular Septum
... PA/IVS shows variations in the size of tricuspid annulus and also in the size of RV cavity (3,5). This pathology is usually associated with coronary artery anomalies and an association with PA/IVS-RVDCC had been reported previously (6). The coronary sinusoids are the connections between the cavity o ...
... PA/IVS shows variations in the size of tricuspid annulus and also in the size of RV cavity (3,5). This pathology is usually associated with coronary artery anomalies and an association with PA/IVS-RVDCC had been reported previously (6). The coronary sinusoids are the connections between the cavity o ...
The Third Heart Sound after Exercise in Athletes: An Exploratory Study
... Moreover, BHPCGT can be used as a new method for evaluating cardiac function in both athletes and nonathletes. However, our researches on the frequency and amplitude of S3 are only at a primary stage, and there are still several limitations. First, the potential maturation on the heart of males and ...
... Moreover, BHPCGT can be used as a new method for evaluating cardiac function in both athletes and nonathletes. However, our researches on the frequency and amplitude of S3 are only at a primary stage, and there are still several limitations. First, the potential maturation on the heart of males and ...
CHAPTER 20- The Cardiovascular System: The Heart
... 9) A medical student examines a valve that has been removed from a heart. He observes that the valve has 3 crescent moon shaped cusps, but no chordae tendinae. What conclusion could he draw based on those observations? A) The valve is the tricuspid valve. B) The valve is the bicuspid valve. C) The ...
... 9) A medical student examines a valve that has been removed from a heart. He observes that the valve has 3 crescent moon shaped cusps, but no chordae tendinae. What conclusion could he draw based on those observations? A) The valve is the tricuspid valve. B) The valve is the bicuspid valve. C) The ...
Anesthetic Challenges in the Blocked Cat Chantal
... the CBC tends to be pretty boring and liver values are often normal. So, if you have to omit something due to client cost constraints this is one thing to consider. 6. Get an ECG and look for arrhythmias. The ECG may alert us to the presence of cardiac arrhythmias, as well as the physical exam may a ...
... the CBC tends to be pretty boring and liver values are often normal. So, if you have to omit something due to client cost constraints this is one thing to consider. 6. Get an ECG and look for arrhythmias. The ECG may alert us to the presence of cardiac arrhythmias, as well as the physical exam may a ...
Reverse Takotsubo Cardiomyopathy
... LV outflow tract obstruction. This obstruction would be caused by compensatory hyperkinesis of the base of the heart, with associated anterior motion of the mitral valve during systole. In the absence of outflow obstruction, hypotension can be managed with pressors such as dopamine, dobutamine, and ...
... LV outflow tract obstruction. This obstruction would be caused by compensatory hyperkinesis of the base of the heart, with associated anterior motion of the mitral valve during systole. In the absence of outflow obstruction, hypotension can be managed with pressors such as dopamine, dobutamine, and ...
The right ventricle in patients with chronic heart failure and atrial
... arrhythmia, LV diastolic function is often worse and may result in deterioration of RV function [15]. Therefore, frequent coexistence of RV dysfunction and AF in the setting of CHF is probable. Cardiac resynchronization therapy (CRT) is a method of treatment in advanced CHF. It involves simultaneous ...
... arrhythmia, LV diastolic function is often worse and may result in deterioration of RV function [15]. Therefore, frequent coexistence of RV dysfunction and AF in the setting of CHF is probable. Cardiac resynchronization therapy (CRT) is a method of treatment in advanced CHF. It involves simultaneous ...
Structure and Function of the Developing Zebrafish Heart
... The cardiovascular system appears when needs for oxygen and nutrition cannot be met by diffusion alone, because of the volume or increased metabolic rate of an organism (Burggren and Pinder, 1991; Pelster and Burggren, 1996). As such, during the course of embryogenesis, the heart is the first defini ...
... The cardiovascular system appears when needs for oxygen and nutrition cannot be met by diffusion alone, because of the volume or increased metabolic rate of an organism (Burggren and Pinder, 1991; Pelster and Burggren, 1996). As such, during the course of embryogenesis, the heart is the first defini ...
Ventricular diastole- Form and Function
... (Diastole has 4 phases: isovolumic relaxation, early rapid filling, filling, diastasis, ...
... (Diastole has 4 phases: isovolumic relaxation, early rapid filling, filling, diastasis, ...
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.