Prevalence and Clinical Predictors of Right Ventricular Dysfunction
... Background and Objectives: Numerous clinical studies have demonstrated chronic right ventricular (RV) pacing induced left ventricular (LV) dyssynchrony and LV systolic dysfunction in patients with permanent pacemaker. However, only a limited number of studies have focused on RV dysfunction. We sough ...
... Background and Objectives: Numerous clinical studies have demonstrated chronic right ventricular (RV) pacing induced left ventricular (LV) dyssynchrony and LV systolic dysfunction in patients with permanent pacemaker. However, only a limited number of studies have focused on RV dysfunction. We sough ...
Left Ventricular Performance Assessed by
... ejection phase indices is based on the assumption that the recorded segmental function is representative of the entire left ventricle. However, regional left ventricular wall motion abnormalities occur in most patients with acute transmural myocardial infarction and persist in the majority of postin ...
... ejection phase indices is based on the assumption that the recorded segmental function is representative of the entire left ventricle. However, regional left ventricular wall motion abnormalities occur in most patients with acute transmural myocardial infarction and persist in the majority of postin ...
Marfan Syndrome Guide
... tomography (CT) scan may be needed. sydell and arnold Miller family heart & vascular institute www.clevelandclinic.org/marfan ...
... tomography (CT) scan may be needed. sydell and arnold Miller family heart & vascular institute www.clevelandclinic.org/marfan ...
Effect of hydrosoluble coenzyme Q10 on blood pressures
... medication for more than 1 year and had coexisting CAD on admission to hospital were considered for inclusion to this substudy. This study is a part of the main trial of coenzyme Q10 in patients who present with acute CAD,18 therefore sample size calculations were not done. In the earlier paper, onl ...
... medication for more than 1 year and had coexisting CAD on admission to hospital were considered for inclusion to this substudy. This study is a part of the main trial of coenzyme Q10 in patients who present with acute CAD,18 therefore sample size calculations were not done. In the earlier paper, onl ...
Extending AED Safety Net Ca
... In a crowded Boston North Station, three bystanders waiting for a train heard a man cry out and immediately sprang into action. They removed his shirt, started chest compressions and cleared his airway while a transit police officer ran to get the station’s automated external defibrillator (AED). Th ...
... In a crowded Boston North Station, three bystanders waiting for a train heard a man cry out and immediately sprang into action. They removed his shirt, started chest compressions and cleared his airway while a transit police officer ran to get the station’s automated external defibrillator (AED). Th ...
Noninvasive and invasive evaluation of pulmonary arterial pressure in highlanders
... were investigated in the morning after 30 min of rest. Recordings were made on S-VHS videotape with simultaneous tracing of the ECG. The recordings were analysed by two independent echocardiographers, who were unaware of the clinical histories or cardiac catheter results. Right ventricle end-systoli ...
... were investigated in the morning after 30 min of rest. Recordings were made on S-VHS videotape with simultaneous tracing of the ECG. The recordings were analysed by two independent echocardiographers, who were unaware of the clinical histories or cardiac catheter results. Right ventricle end-systoli ...
Spontaneous baroreflex control of cardiac output during dynamic
... always translate into changes in cardiac output (CO) at rest. We have also shown that heart failure (HF) decreases this linkage between changes in HR and CO. Whether dynamic exercise and muscle metaboreflex activation (via imposed reductions in hindlimb blood flow) further alter this translation in ...
... always translate into changes in cardiac output (CO) at rest. We have also shown that heart failure (HF) decreases this linkage between changes in HR and CO. Whether dynamic exercise and muscle metaboreflex activation (via imposed reductions in hindlimb blood flow) further alter this translation in ...
Core curriculum for the heart rhythm specialist
... Heart rhythm management is a rapidly developing field with the most extensive and complex knowledge base in cardiology. This has been recognized by some organizations, such as the American Board of Internal Medicine, which considers HR management to be sufficient in itself to constitute a subspecial ...
... Heart rhythm management is a rapidly developing field with the most extensive and complex knowledge base in cardiology. This has been recognized by some organizations, such as the American Board of Internal Medicine, which considers HR management to be sufficient in itself to constitute a subspecial ...
Primary vagally mediated decelerations in heart rate during tonic
... computer under Windows 95. Our customized software provides color-coded plots of the R-R intervals, which make it feasible to identify decelerations that fit the criteria. The thresholds for the decelerations were entered before analysis. Any increase in R-R interval .20% was plotted by the computer ...
... computer under Windows 95. Our customized software provides color-coded plots of the R-R intervals, which make it feasible to identify decelerations that fit the criteria. The thresholds for the decelerations were entered before analysis. Any increase in R-R interval .20% was plotted by the computer ...
AED
... • When using around pool, place victim in a dry area by sure feet are dry • Keep all bystanders sway from puddles of water ...
... • When using around pool, place victim in a dry area by sure feet are dry • Keep all bystanders sway from puddles of water ...
Changes in QT Dispersion Magnitude During
... lower QT dispersion value during maximum expiration may also be related to the close proximity of the heart to the chest wall. Nevertheless, it is hard to say that the change in QT d ispersion magnitude is completely due to the position of the heart during respiration. The partial alveolar Oı and CO ...
... lower QT dispersion value during maximum expiration may also be related to the close proximity of the heart to the chest wall. Nevertheless, it is hard to say that the change in QT d ispersion magnitude is completely due to the position of the heart during respiration. The partial alveolar Oı and CO ...
Academic Activites Physiology Dept. 2012
... Cardiovascular System : (a) Functional anatomy of heart (b) Origin and spread of cardiac impulse (c) Cardiac cycle (with heart sounds and pressure changes) (d) Electrocardiogram (e) Heart rate (f) Cardiac output (g) Arterial blood pressure (h) Arterial and venous pulse (i) Capillary and regional cir ...
... Cardiovascular System : (a) Functional anatomy of heart (b) Origin and spread of cardiac impulse (c) Cardiac cycle (with heart sounds and pressure changes) (d) Electrocardiogram (e) Heart rate (f) Cardiac output (g) Arterial blood pressure (h) Arterial and venous pulse (i) Capillary and regional cir ...
Arrhythmic Mitral Valve Prolapse and Sudden Cardiac Death
... performed using an Image-Pro Plus program (Version 4.0. Media Cybernetics, MD, USA) to quantify the fibrous tissue percent area of LV myocardium on Heidenhain trichrome stained sections at 25x magnification. Mean cardiomyocytes diameter was calculated on Haematoxylineosin stained sections at 400x ma ...
... performed using an Image-Pro Plus program (Version 4.0. Media Cybernetics, MD, USA) to quantify the fibrous tissue percent area of LV myocardium on Heidenhain trichrome stained sections at 25x magnification. Mean cardiomyocytes diameter was calculated on Haematoxylineosin stained sections at 400x ma ...
ASSOCIATION OF SYSTOLIC DYSFUNCTION WITH LEFT
... independently of afterload and the degree of left ventricular hypertrophy is evident since the very beginning of hypertension (21). The presence of the clinical syndrome of heart failure beyond that systolic function is preserved or not, seems to be the most relevant information about the prognosis ...
... independently of afterload and the degree of left ventricular hypertrophy is evident since the very beginning of hypertension (21). The presence of the clinical syndrome of heart failure beyond that systolic function is preserved or not, seems to be the most relevant information about the prognosis ...
Stenotic Semilunar Valve in Persistent Truncus Arteriosus
... pathologic features of our case 1 were similar to the case of truncal valvular stenosis reported by Burnell and associates, with the exceptions that their infant had diminished peripheral pulses, whereas ours did not; and their infant had a left aortic arch, and our case 1 had a right arch. Except f ...
... pathologic features of our case 1 were similar to the case of truncal valvular stenosis reported by Burnell and associates, with the exceptions that their infant had diminished peripheral pulses, whereas ours did not; and their infant had a left aortic arch, and our case 1 had a right arch. Except f ...
Right ventricular dysfunction in patients with idiopathic dilated
... to 65% [13,14]. Several studies have demonstrated the additional prognostic value of RV dysfunction in HF and, most particularly, in idiopathic DCM [15—18]. Propensity analyses are rarely used in clinical studies; they are mostly used in pharmacological and epidemiological studies, to counter the ef ...
... to 65% [13,14]. Several studies have demonstrated the additional prognostic value of RV dysfunction in HF and, most particularly, in idiopathic DCM [15—18]. Propensity analyses are rarely used in clinical studies; they are mostly used in pharmacological and epidemiological studies, to counter the ef ...
SOD-1 expression in pig coronary arterioles is
... procedure was standardized for small differences in starting material amount, efficiency of the reactions, and recovery by coamplifying SOD-1 with GAPDH in the same reaction tube. GAPDH primers were the same as those previously used in our laboratory (46, 47): sense, 5⬘-CCACCCATGGCAAATTCCATGGCA-3⬘; ...
... procedure was standardized for small differences in starting material amount, efficiency of the reactions, and recovery by coamplifying SOD-1 with GAPDH in the same reaction tube. GAPDH primers were the same as those previously used in our laboratory (46, 47): sense, 5⬘-CCACCCATGGCAAATTCCATGGCA-3⬘; ...
Subacute cardiac perforations associated with active
... pericardial effusion (up to 6 mm). Both sensing and pacing parameters, as well as the lead position on fluoroscopy, were similar to those obtained during the implantation and before the discharge. On the next day, the patient resuffered from the stabbing chest pain recurrence. The second echocardiog ...
... pericardial effusion (up to 6 mm). Both sensing and pacing parameters, as well as the lead position on fluoroscopy, were similar to those obtained during the implantation and before the discharge. On the next day, the patient resuffered from the stabbing chest pain recurrence. The second echocardiog ...
A rare case of cardiac anomaly: prenatally diagnosed ectopia cordis
... lost in a short time in the follow-up. Written informed consent was obtained from the family of the patient. Discussion Ectopia cordis has been known for 5 000 years, but its etiology and pathogenesis has not been elucidated yet (2, 6-8). In the pathogenesis, lack of completion of the normal develop ...
... lost in a short time in the follow-up. Written informed consent was obtained from the family of the patient. Discussion Ectopia cordis has been known for 5 000 years, but its etiology and pathogenesis has not been elucidated yet (2, 6-8). In the pathogenesis, lack of completion of the normal develop ...
Direct Determinations of Aortic Blood Flow
... was studied by right and left heart catheterization preoperatively, and in six patients the results of the studies indicated isolated, severe aortic regurgitation without associated aortic stenosis. The other three patients (R.O., A.A., and L.S.) also had severe aortic regurgitation, but associated ...
... was studied by right and left heart catheterization preoperatively, and in six patients the results of the studies indicated isolated, severe aortic regurgitation without associated aortic stenosis. The other three patients (R.O., A.A., and L.S.) also had severe aortic regurgitation, but associated ...
Thermal Therapy Improves Left Ventricular Diastolic Function in
... in patients with diastolic dysfunction.11）Therefore, our data strongly suggest that LV relaxation was improved after sauna compared to before sauna, probably due to the acute effects of thermal vasodilation. E/E’has been accepted as a reliable estimate of LV filling pressures. E/E’shows strong corre ...
... in patients with diastolic dysfunction.11）Therefore, our data strongly suggest that LV relaxation was improved after sauna compared to before sauna, probably due to the acute effects of thermal vasodilation. E/E’has been accepted as a reliable estimate of LV filling pressures. E/E’shows strong corre ...
Balance Between Right and Left Ventricular Output
... Downloaded from http://circres.ahajournals.org/ by guest on April 28, 2017 ...
... Downloaded from http://circres.ahajournals.org/ by guest on April 28, 2017 ...
Optimal ventricular rate slowing during atrial fibrillation - AJP
... mg/kg iv) and intubated and ventilated with room air supplemented with oxygen as needed to maintain normal arterial blood gases by a respirator (NARKOMED 2, North American Drager; Telford, PA). Anesthesia was then maintained with 1–2% isoflurane throughout the experiment. The left external jugular v ...
... mg/kg iv) and intubated and ventilated with room air supplemented with oxygen as needed to maintain normal arterial blood gases by a respirator (NARKOMED 2, North American Drager; Telford, PA). Anesthesia was then maintained with 1–2% isoflurane throughout the experiment. The left external jugular v ...
Conus arteriosus: an anatomic and terminologic evaluation
... Objectives: The aim of this study was to evaluate the anatomy and terminology for the conus arteriosus, thereby revealing possible differences among various sources of this information. Methods: Twenty-four textbooks, nine anatomy atlases, and six original articles related to terminology were examin ...
... Objectives: The aim of this study was to evaluate the anatomy and terminology for the conus arteriosus, thereby revealing possible differences among various sources of this information. Methods: Twenty-four textbooks, nine anatomy atlases, and six original articles related to terminology were examin ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.