Understanding your child`s heart Pulmonary atresia with intact
... natural breathing, and so your baby may need the support of a ventilator. Drug treatment is not usually recommended for very long periods, so your baby may need surgery to treat his or her condition within the first few weeks of life. The type of surgery needed will depend on how well the right vent ...
... natural breathing, and so your baby may need the support of a ventilator. Drug treatment is not usually recommended for very long periods, so your baby may need surgery to treat his or her condition within the first few weeks of life. The type of surgery needed will depend on how well the right vent ...
cardioverter-defibrillator related problems Troubleshooting
... (committed) device into a sophisticated multiprogrammable, multi-functional device with extensive diagnostic and therapeutic options. The more recent combination with cardiac resynchronisation therapy (CRT) further expanded its use to selected patients with severe symptoms of heart failure and left ...
... (committed) device into a sophisticated multiprogrammable, multi-functional device with extensive diagnostic and therapeutic options. The more recent combination with cardiac resynchronisation therapy (CRT) further expanded its use to selected patients with severe symptoms of heart failure and left ...
Noncardiac surgery: Postoperative arrhythmias
... ity should also be considered (12). Short bursts of atrial tachycardia do not require specific drug therapy unless they are frequent and symptomatic. Multifocal atrial tachycardia usually occurs in acutely ill, elderly patients, or in patients with pulmonary disease (13). Multifocal atrial tachycard ...
... ity should also be considered (12). Short bursts of atrial tachycardia do not require specific drug therapy unless they are frequent and symptomatic. Multifocal atrial tachycardia usually occurs in acutely ill, elderly patients, or in patients with pulmonary disease (13). Multifocal atrial tachycard ...
Diagnosis, Treatment and Prognosis of Cardiac Rupture in Acute
... (1,5,17,20,39) but its proportion is likely to be higher when considering also those patients who die suddenly outside of the hospital (16,40). In this initial presentation, factors such as a persistent strain in the infarcted zone due to sustained arterial hypertension (2,9,17 -19,41) or to mainten ...
... (1,5,17,20,39) but its proportion is likely to be higher when considering also those patients who die suddenly outside of the hospital (16,40). In this initial presentation, factors such as a persistent strain in the infarcted zone due to sustained arterial hypertension (2,9,17 -19,41) or to mainten ...
Left ventricular diastolic filling response to
... can be assessed by measuring the time for the deceleration of early left (mitral) ventricular filling.3 Exercise-induced tachycardia shortens the duration of diastole and thus the diastolic filling time. Diastolic filling must increase its filling rate in spite of the shortened diastole without incr ...
... can be assessed by measuring the time for the deceleration of early left (mitral) ventricular filling.3 Exercise-induced tachycardia shortens the duration of diastole and thus the diastolic filling time. Diastolic filling must increase its filling rate in spite of the shortened diastole without incr ...
Left Ventricular Performance Assessed by
... a normal systolic posterior wall movement of 1.1 cm. There was no systolic murmur and right heart catheterization did not indicate either mitral regurgitation or a ventricular septal defect. During the second study two months later the patient was no longer in congestive heart failure and the dyssyn ...
... a normal systolic posterior wall movement of 1.1 cm. There was no systolic murmur and right heart catheterization did not indicate either mitral regurgitation or a ventricular septal defect. During the second study two months later the patient was no longer in congestive heart failure and the dyssyn ...
Echocardiographic Assessment of Right Ventricular Volumes after
... method was developed. The method involves the acquisition of 2D echocardiographic images with a magnetic localizer attached to the ultrasound probe, allowing localization of the different 2D images in 3D space. The image acquisition protocol should provide good coverage of the different parts of the ...
... method was developed. The method involves the acquisition of 2D echocardiographic images with a magnetic localizer attached to the ultrasound probe, allowing localization of the different 2D images in 3D space. The image acquisition protocol should provide good coverage of the different parts of the ...
12603144_Main
... Experimental investigations of ventricular interaction have been most often carried out on anaesthetized dogs and usually involve surgically removing the heart from the circulation system and carrying out static tests [Maughan87, Weber81, Glantz78, Santamore98]. A known quantity of blood is then inj ...
... Experimental investigations of ventricular interaction have been most often carried out on anaesthetized dogs and usually involve surgically removing the heart from the circulation system and carrying out static tests [Maughan87, Weber81, Glantz78, Santamore98]. A known quantity of blood is then inj ...
... Several factors interact to determine diastolic function—ie, to maintain adequate cardiac output under normal filling pressure (TABLE 1 ) 5 : the most important are LV relaxation and stiffness and left atrial function. Patients with diastolic dysfunction can have varying degrees of abnormality in th ...
Inflammatory Response and Congestive Heart Failure Following
... syndrome.3 Singh et al suggested that this syndrome may be related to a combination of volume overload, increased circulating cytokine levels, or reduction in natriuretic peptides with extensive ablation of atrial tissue.4 The appearance of symptoms 3-4 days post-ablation procedure makes direct volu ...
... syndrome.3 Singh et al suggested that this syndrome may be related to a combination of volume overload, increased circulating cytokine levels, or reduction in natriuretic peptides with extensive ablation of atrial tissue.4 The appearance of symptoms 3-4 days post-ablation procedure makes direct volu ...
ABCs of Heart Disease
... to the RA overlap each other where the indentation between the ascending aorta and right heart border meet ...
... to the RA overlap each other where the indentation between the ascending aorta and right heart border meet ...
Managing low cardiac output syndrome after congenital heart surgery
... When systemic blood pressure is elevated and cardiac output appears low or normal, a primary vasodilator is indicated to normalize blood pressure and to decrease the afterload on the left ventricle. This is especially true for the newborn myocardium, which is especially sensitive to changes in after ...
... When systemic blood pressure is elevated and cardiac output appears low or normal, a primary vasodilator is indicated to normalize blood pressure and to decrease the afterload on the left ventricle. This is especially true for the newborn myocardium, which is especially sensitive to changes in after ...
Alternate Sites of Permanent Cardiac Pacing: A Randomized Study
... patients underwent DDDR pacemaker implantation. The study was approved by the local medical ethics committee and the institutional review board. With regard to the technical characteristics, the new pacing lead (3830, Medtronic) is a bipolar, active fixation, thin (4.1 F) and compact (bearing no sty ...
... patients underwent DDDR pacemaker implantation. The study was approved by the local medical ethics committee and the institutional review board. With regard to the technical characteristics, the new pacing lead (3830, Medtronic) is a bipolar, active fixation, thin (4.1 F) and compact (bearing no sty ...
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 ...
the physiology of the alligator heart
... table and an infrared lamp above it. Rectal temperature was monitored continuously. The whole heart and the arterial arches were exposed, in the initial experiments, by a ventral incision through the midline of the sternum, beginning midway between the front and rear legs and continuing forward to t ...
... table and an infrared lamp above it. Rectal temperature was monitored continuously. The whole heart and the arterial arches were exposed, in the initial experiments, by a ventral incision through the midline of the sternum, beginning midway between the front and rear legs and continuing forward to t ...
Management of Acute Decompensated Heart Failure
... • A clinical syndrome resulting from any structural or functional cardiac defect limiting ventricular filling, a syndrome is described by specific symptoms and signs • Around 5.8 million people in the United States have heart failure. • About one in five people who have heart failure die within one ...
... • A clinical syndrome resulting from any structural or functional cardiac defect limiting ventricular filling, a syndrome is described by specific symptoms and signs • Around 5.8 million people in the United States have heart failure. • About one in five people who have heart failure die within one ...
Left Ventricular Hypertrophy in Obese Hypertensives: Is It Really
... and left atrial hypertrophy with the BMI values was considerably better in the group of moderate than in the group of mild hypertension. The r values were 0.62 vs. 0.22 for left ventricular mass and 0.64 vs. 0.26 for left atrial dimension. The group of patients with severe hypertension was character ...
... and left atrial hypertrophy with the BMI values was considerably better in the group of moderate than in the group of mild hypertension. The r values were 0.62 vs. 0.22 for left ventricular mass and 0.64 vs. 0.26 for left atrial dimension. The group of patients with severe hypertension was character ...
Effect of Heart Rate on Aortic Insufficiency as Measured by a Dye
... into the aorta. The distribution of the injected dye between the left subelavian artery and the descending aorta following each injection was determined by recording dye concentration continuously in the left radial and the left femoral artery blood. The dye was injected through the arterial cathete ...
... into the aorta. The distribution of the injected dye between the left subelavian artery and the descending aorta following each injection was determined by recording dye concentration continuously in the left radial and the left femoral artery blood. The dye was injected through the arterial cathete ...
Chordal rupture - Heart
... this paper we have reviewed all cases of surgically treated ruptured chordae seen recently at this hospital and made such a comparison. Patients and methods The case records of all 213 patients found to have ruptured chordae at open heart surgery for mitral regurgitation in the years 1970-81 inclusi ...
... this paper we have reviewed all cases of surgically treated ruptured chordae seen recently at this hospital and made such a comparison. Patients and methods The case records of all 213 patients found to have ruptured chordae at open heart surgery for mitral regurgitation in the years 1970-81 inclusi ...
Chapter 18 Powerpoint A
... • Anterior interventricular sulcus – Anterior position of interventricular septum ...
... • Anterior interventricular sulcus – Anterior position of interventricular septum ...
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... A 36-year-old male patient with an atypical intermittent chest pain for one month was referred to our radiology department for evaluation of the coronary arteries. However, he had no history of significant medical problems. Contrast enhanced 256-slice MDCT (SOMATOM Definition Flash, Siemens Medical ...
... A 36-year-old male patient with an atypical intermittent chest pain for one month was referred to our radiology department for evaluation of the coronary arteries. However, he had no history of significant medical problems. Contrast enhanced 256-slice MDCT (SOMATOM Definition Flash, Siemens Medical ...
Slide 1
... artery begins to die. The longer a person goes without treatment, the greater the damage. Symptoms of a heart attack may be immediate and intense. More often, though, symptoms start slowly and persist for hours, days or even weeks before the heart attack. The heart usually does not stop beating duri ...
... artery begins to die. The longer a person goes without treatment, the greater the damage. Symptoms of a heart attack may be immediate and intense. More often, though, symptoms start slowly and persist for hours, days or even weeks before the heart attack. The heart usually does not stop beating duri ...
Diagnosis and Management of Rheumatic Heart
... Which valves are affected? Mitral valve is affected in over 90% of cases of RHD Mitral regurgitation most commonly found in children & adolescents Mitral stenosis represents longer term chronic disease, commonly in adults Most common complication of mitral stenosis is atrial fibrillation ...
... Which valves are affected? Mitral valve is affected in over 90% of cases of RHD Mitral regurgitation most commonly found in children & adolescents Mitral stenosis represents longer term chronic disease, commonly in adults Most common complication of mitral stenosis is atrial fibrillation ...
Sudden unexpected death in heart failure may be preceded by short
... Apart from the time gap problem, another problem with cross sectional studies is that most parameters have greater interindividual variability than they do intraindividual variability, and high interindividual variability severely limits the ability of cross sectional studies to identify individual ...
... Apart from the time gap problem, another problem with cross sectional studies is that most parameters have greater interindividual variability than they do intraindividual variability, and high interindividual variability severely limits the ability of cross sectional studies to identify individual ...
doppler evaluation of valvular stenosis #3
... flow is undisturbed (laminar) with a peak systolic velocity of about 1 m/s. When the sample volume is positioned distal to the diseased pulmonic valve (Fig. 3.15, B) the systolic flow becomes ...
... flow is undisturbed (laminar) with a peak systolic velocity of about 1 m/s. When the sample volume is positioned distal to the diseased pulmonic valve (Fig. 3.15, B) the systolic flow becomes ...
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.