Extracorporeal Membrane Oxygenation in Cardiopulmonary
... tricuspid valve, minimizing the amount of recirculation (6). Placement is typically accomplished under fluoroscopic or transesophageal echocardiographic guidance (14). For patients in whom mobilization is anticipated, particularly those awaiting transplantation whose candidacy depends in part on thei ...
... tricuspid valve, minimizing the amount of recirculation (6). Placement is typically accomplished under fluoroscopic or transesophageal echocardiographic guidance (14). For patients in whom mobilization is anticipated, particularly those awaiting transplantation whose candidacy depends in part on thei ...
Techniques for ventricular repolarization instability
... the body surface. This activity is the summed result of the different action potentials (APs), concurring simultaneously, from all excitable cells throughout the heart as they trigger contraction. The trace of each heartbeat in the ECG signal consists on a sequence of characteristic deflections or w ...
... the body surface. This activity is the summed result of the different action potentials (APs), concurring simultaneously, from all excitable cells throughout the heart as they trigger contraction. The trace of each heartbeat in the ECG signal consists on a sequence of characteristic deflections or w ...
threshold changes in blood lactate, beat-to
... For detection of the VT, the point of a consistent increase in the ventilatory equivalent for oxygen (VE/VO2) was used as described by Caizzeo et al. (6). The heart rate threshold (HT) was detected by applying a quadratic regression equation to the heart rate data. The linear component of the heart ...
... For detection of the VT, the point of a consistent increase in the ventilatory equivalent for oxygen (VE/VO2) was used as described by Caizzeo et al. (6). The heart rate threshold (HT) was detected by applying a quadratic regression equation to the heart rate data. The linear component of the heart ...
kinins and kinin receptors in the pathogenesis of heart - E
... 3. REVIEW OF THE LITERATURE 1. Heart Failure Heart failure (HF) is defined as a pathophysiological state in which the heart is unable to pump blood at a rate commensurate with the requirements of the metabolizing tissues, or when it can do so only with an elevated filling pressure. HF is usually, a ...
... 3. REVIEW OF THE LITERATURE 1. Heart Failure Heart failure (HF) is defined as a pathophysiological state in which the heart is unable to pump blood at a rate commensurate with the requirements of the metabolizing tissues, or when it can do so only with an elevated filling pressure. HF is usually, a ...
BAJ Reddi and RHS Carpenter
... blood enters the right atrium and is delivered in each cycle into the ventricle; rather, it prevents accumulation by guaranteeing that this volume is expelled. In the laboratory, we can manipulate this volume in different ways. We may alter the driving pressure, which, if the return resistance is sm ...
... blood enters the right atrium and is delivered in each cycle into the ventricle; rather, it prevents accumulation by guaranteeing that this volume is expelled. In the laboratory, we can manipulate this volume in different ways. We may alter the driving pressure, which, if the return resistance is sm ...
Clinical recommendations for cardiopulmonary exercise testing data
... Several CPX statements have been published by well-respected organizations in both the US and Europe.1 – 5 Despite these prominent reports and the plethora of pertinent medical literature which they feature, underutilization of CPX persists. This discrepancy is at least partly attributable to the fa ...
... Several CPX statements have been published by well-respected organizations in both the US and Europe.1 – 5 Despite these prominent reports and the plethora of pertinent medical literature which they feature, underutilization of CPX persists. This discrepancy is at least partly attributable to the fa ...
Relationship between Anemia and Diastolic Dysfunction of the Heart
... echocardiography. It is classified as primary or isolated when the systolic function is normal and secondary when there is systolic dysfunction. Aim of the study: This study is conducted to evaluate the relationship between anemia and diastolic dysfunction of the heart. Patients and methods: 200 par ...
... echocardiography. It is classified as primary or isolated when the systolic function is normal and secondary when there is systolic dysfunction. Aim of the study: This study is conducted to evaluate the relationship between anemia and diastolic dysfunction of the heart. Patients and methods: 200 par ...
Fontan Circulation
... – Most commonly intra-atrial re-entry tachycardia or atypical atrial flutter – Survival depends on ventricular contractility and vascular resistance – Safest treatment is immediate DC cardioversion – Long term treatments include medication, ablation, pacemaker, Fontan take-down ...
... – Most commonly intra-atrial re-entry tachycardia or atypical atrial flutter – Survival depends on ventricular contractility and vascular resistance – Safest treatment is immediate DC cardioversion – Long term treatments include medication, ablation, pacemaker, Fontan take-down ...
Northwest Community EMS System VENTRICULAR
... For cardioversion to be carried out safely, the electrical energy discharge is synchronized with the early part of the QRS complex (typically the large R wave of the QRS) in order to avoid energy delivery during the vulnerable period of repolarization, that is, around the peak of the T wave on the E ...
... For cardioversion to be carried out safely, the electrical energy discharge is synchronized with the early part of the QRS complex (typically the large R wave of the QRS) in order to avoid energy delivery during the vulnerable period of repolarization, that is, around the peak of the T wave on the E ...
Resistance With Elevated Pulmonary Vascular Evaluation of
... Physicians. It has been published monthly since 1935. Copyright 1998 by the American College of Chest Physicians, 3300 Dundee Road, Northbrook, IL 60062. All rights reserved. No part of this article or PDF may be reproduced or distributed without the prior written permission of the copyright holder. ...
... Physicians. It has been published monthly since 1935. Copyright 1998 by the American College of Chest Physicians, 3300 Dundee Road, Northbrook, IL 60062. All rights reserved. No part of this article or PDF may be reproduced or distributed without the prior written permission of the copyright holder. ...
CARDIOVASCULAR AND RESPIRATORY
... the central nervous system, interact with medullary neurone pools and have an influence on physiological responses to exercise in man is mainly circumstantial. Recent advances have been made in functionally dissecting central afferent input from peripheral afferent input (for example from muscle che ...
... the central nervous system, interact with medullary neurone pools and have an influence on physiological responses to exercise in man is mainly circumstantial. Recent advances have been made in functionally dissecting central afferent input from peripheral afferent input (for example from muscle che ...
ACE Inhibition as a Cornerstone of Hypertension Treatment
... greater extent than perindopril 4 mg, for a similar reduction in ambulatory BP.5 In hypertensives, a 1-year treatment with perindopril normalized the media-to-lumen ratio of small arteries, whereas atenolol did not.10 These BP-independent effects of ACE inhibitors could confer additional efficacy in ...
... greater extent than perindopril 4 mg, for a similar reduction in ambulatory BP.5 In hypertensives, a 1-year treatment with perindopril normalized the media-to-lumen ratio of small arteries, whereas atenolol did not.10 These BP-independent effects of ACE inhibitors could confer additional efficacy in ...
Arrhythmogenic right ventricular cardiomyopathy (ARVC
... is an inherited cardiomyopathy characterized by fibro-fatty replacement of predominantly the right ventricular (RV) myocardium, which predisposes patients to life-threatening ventricular arrhythmias and RV dysfunction [1-3]. ARVC is present in up to 20% of individuals who experience sudden cardiac d ...
... is an inherited cardiomyopathy characterized by fibro-fatty replacement of predominantly the right ventricular (RV) myocardium, which predisposes patients to life-threatening ventricular arrhythmias and RV dysfunction [1-3]. ARVC is present in up to 20% of individuals who experience sudden cardiac d ...
Alternative venous drainage of heart ventricles in rabbits
... ventricle and apex cordis. Often originated as two veins in the distal third of the heart (Fig. 4). Branches of the VMVS were observed to anastomose with the collateral branches of the VIP in 17% of cases (Fig. 1B) and with the MCV in 3% of cases. A double vein was seen in 3% of cases. The VMVS open ...
... ventricle and apex cordis. Often originated as two veins in the distal third of the heart (Fig. 4). Branches of the VMVS were observed to anastomose with the collateral branches of the VIP in 17% of cases (Fig. 1B) and with the MCV in 3% of cases. A double vein was seen in 3% of cases. The VMVS open ...
Downloaded - Circulation
... related to left ventricular muscle mass, whereas the depth of the T wave in V6 and patient age were found not to have independent value for prediction of LVH. Based on these findings, our previously reported multiple logistic regression equation7 was modified to achieve mathematical optimization of ...
... related to left ventricular muscle mass, whereas the depth of the T wave in V6 and patient age were found not to have independent value for prediction of LVH. Based on these findings, our previously reported multiple logistic regression equation7 was modified to achieve mathematical optimization of ...
hyperoxia - Anaesthetics
... to a SPO2 of greater or equal to 94%. Cardiac arrest provides an even more contentious topic. During cardiopulmonary resuscitation, delivery of 100% oxygen remains recommended protocol with hypoxia being the predominant state in most resuscitations. There is however compelling evidence from animal s ...
... to a SPO2 of greater or equal to 94%. Cardiac arrest provides an even more contentious topic. During cardiopulmonary resuscitation, delivery of 100% oxygen remains recommended protocol with hypoxia being the predominant state in most resuscitations. There is however compelling evidence from animal s ...
Original Article MRI shows limited mixing between systemic and
... struggle in the postoperative period and was found to have pulmonary hypertension. A cardiac catheterisation at 6 weeks of age revealed a pulmonary vascular resistance of 25 Wood units∙m2 and the patient died of right ventricular failure 6 months later. The aortogram performed during this catheteris ...
... struggle in the postoperative period and was found to have pulmonary hypertension. A cardiac catheterisation at 6 weeks of age revealed a pulmonary vascular resistance of 25 Wood units∙m2 and the patient died of right ventricular failure 6 months later. The aortogram performed during this catheteris ...
New methods of studying affections of the heart.
... dlsease, I had noted an increase in the a-c interval for some years. During labour it frequently happens that the pulse becomes irregular, the irregularity often being of a respiratory type. The radial tracing in Fig. 5 shows such an irregularity. The tracing of the carotid and jugular slhows a rise ...
... dlsease, I had noted an increase in the a-c interval for some years. During labour it frequently happens that the pulse becomes irregular, the irregularity often being of a respiratory type. The radial tracing in Fig. 5 shows such an irregularity. The tracing of the carotid and jugular slhows a rise ...
dbl dobutamine hydrochloride injection
... intraventricular pressure during systole; (b) changes in afterload, generally proportional to changes in systolic blood pressure; and (c) changes in heart rate. When the use of an inotropic agent in a patient with a failing, dilated heart results in a decrease in ventricular diameter, oxygen demand ...
... intraventricular pressure during systole; (b) changes in afterload, generally proportional to changes in systolic blood pressure; and (c) changes in heart rate. When the use of an inotropic agent in a patient with a failing, dilated heart results in a decrease in ventricular diameter, oxygen demand ...
Essentials of Anatomy and Physiology, 9e (Marieb)
... 19) The coronary veins empty blood from the myocardium into a large vein on the posterior side of the heart known as the __________. Answer: coronary sinus Diff: 3 ...
... 19) The coronary veins empty blood from the myocardium into a large vein on the posterior side of the heart known as the __________. Answer: coronary sinus Diff: 3 ...
Prosthesis–patient mismatch after aortic valve replacement
... ventricular mass regression after aortic valve replacement remains controversial. Data on whether the clinical effect of prosthesis–patient mismatch depends on left ventricular function at the time of aortic valve replacement are lacking. This study examined the long-term clinical and echocardiograp ...
... ventricular mass regression after aortic valve replacement remains controversial. Data on whether the clinical effect of prosthesis–patient mismatch depends on left ventricular function at the time of aortic valve replacement are lacking. This study examined the long-term clinical and echocardiograp ...
Myocardial Lysosomes in Experimental Atrial Septal Defects
... right shunt in atrial septal defects bypasses the left ventricle. However, although the heart does have a right and a left side, it Circulation Research, Vol. XXI, July 1967 ...
... right shunt in atrial septal defects bypasses the left ventricle. However, although the heart does have a right and a left side, it Circulation Research, Vol. XXI, July 1967 ...
Effect of Caloric Restriction or Aerobic Exercise
... In obese older individuals without heart failure, weight loss via dietary caloric restriction (diet) improves left ventricular hypertrophy and diastolic function; exercise capacity; glucose, lipid, and blood pressure control; inflammation markers; body composition; and skeletal muscle function.8,11- ...
... In obese older individuals without heart failure, weight loss via dietary caloric restriction (diet) improves left ventricular hypertrophy and diastolic function; exercise capacity; glucose, lipid, and blood pressure control; inflammation markers; body composition; and skeletal muscle function.8,11- ...
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.