Full Text - European Respiratory Journal
... Current guidelines advise against the use of β-blockers in pulmonary arterial hypertension (PAH) to avoid systemic hypotension [1]. In addition, PAH patients have a fixed stroke volume, and are therefore highly dependent on heart rate to increase their cardiac output [2–4]. Indeed, PROVENCHER et al. ...
... Current guidelines advise against the use of β-blockers in pulmonary arterial hypertension (PAH) to avoid systemic hypotension [1]. In addition, PAH patients have a fixed stroke volume, and are therefore highly dependent on heart rate to increase their cardiac output [2–4]. Indeed, PROVENCHER et al. ...
Document
... D. atrial contraction, ventricular filling, isovolumic ventricular contraction, ventricular ejection, isovolumic ventricular relaxation E. isovolumic ventricular relaxation, atrial contraction, ventricular filling, isovolumic ventricular contraction, ventricular ejection 20. A heart rate of 45 beat/ ...
... D. atrial contraction, ventricular filling, isovolumic ventricular contraction, ventricular ejection, isovolumic ventricular relaxation E. isovolumic ventricular relaxation, atrial contraction, ventricular filling, isovolumic ventricular contraction, ventricular ejection 20. A heart rate of 45 beat/ ...
Cardiac Devices and Peri-Operative Cardiac Surgery Appearances
... • Pre- and retro-sternal soft tissue inflammatory stranding/edema • Fluid/blood • Locules of air ...
... • Pre- and retro-sternal soft tissue inflammatory stranding/edema • Fluid/blood • Locules of air ...
12c - Macmillan Academy
... • The tissue is said to be myogenic i.e. it does not need electrical impulses from a nerve to make it contract. If the cardiac muscle is supplied with oxygen and nutrients (a task carried out by the coronary arteries which you can see running over the surface of the heart) it will continue to contr ...
... • The tissue is said to be myogenic i.e. it does not need electrical impulses from a nerve to make it contract. If the cardiac muscle is supplied with oxygen and nutrients (a task carried out by the coronary arteries which you can see running over the surface of the heart) it will continue to contr ...
Inherited Cardiac Arrhythmias
... most often cause LQTS, which encode cardiac potassium or sodium channels; for CPVT it is the RYR2 gene, which encodes the calcium release channel in the cardiac sarcoplasmic reticulum. In dilated cardiomyopathy, a familial form of the disease is seen in about 30% of patients. In this case the hit ra ...
... most often cause LQTS, which encode cardiac potassium or sodium channels; for CPVT it is the RYR2 gene, which encodes the calcium release channel in the cardiac sarcoplasmic reticulum. In dilated cardiomyopathy, a familial form of the disease is seen in about 30% of patients. In this case the hit ra ...
A transcatheter intracardiac shunt device for heart failure with
... Funding: Corvia Medical Inc. (Formerly DC Devices Inc.) ...
... Funding: Corvia Medical Inc. (Formerly DC Devices Inc.) ...
Anesthetic Consideration for an Adult Heart Transplant Recipient
... without wall motion abnormality. Cardiac allograft vasculopathy was excluded by a normal myocardial biopsy specimen obtained 3 months after transplant. According to Ng and Cassorla,10 vasculopathy is common in patients more than 1 year after transplant and is the most frequent cause of repeated tran ...
... without wall motion abnormality. Cardiac allograft vasculopathy was excluded by a normal myocardial biopsy specimen obtained 3 months after transplant. According to Ng and Cassorla,10 vasculopathy is common in patients more than 1 year after transplant and is the most frequent cause of repeated tran ...
ECG How to’s - CecchiniCuore
... and repolarization from the ventricular myocardium, not the SA node. In addition, if the impulse originated in the left ventricle, the wave of depolarization will be travel up, and the Ventricular Premature Contraction would be a downward deflection on the ECG. However, if the impulse originated ...
... and repolarization from the ventricular myocardium, not the SA node. In addition, if the impulse originated in the left ventricle, the wave of depolarization will be travel up, and the Ventricular Premature Contraction would be a downward deflection on the ECG. However, if the impulse originated ...
Hemodynamic and Echocardiographic Evaluation of
... well-maintained RA architecture and function (contraction) reduces the incidence of TVR. The hemodynamic and echocardiographic data for our patients undergoing the mBCAT resembled those previously reported for the original BCAT.13–17 The values for RA, right ventricular, pulmonary arterial and pulmo ...
... well-maintained RA architecture and function (contraction) reduces the incidence of TVR. The hemodynamic and echocardiographic data for our patients undergoing the mBCAT resembled those previously reported for the original BCAT.13–17 The values for RA, right ventricular, pulmonary arterial and pulmo ...
The intensive care management of patients following heart
... Today heart transplantation (HTx) is accepted worldwide as a treatment option for terminal cardiac failure. In approximately 90% of HTx patients the indication is ischemic or dilative cardiomyopathy. Seventy-five percent of the organ recipients are more than 40 years old and most of them are men (1) ...
... Today heart transplantation (HTx) is accepted worldwide as a treatment option for terminal cardiac failure. In approximately 90% of HTx patients the indication is ischemic or dilative cardiomyopathy. Seventy-five percent of the organ recipients are more than 40 years old and most of them are men (1) ...
Cardiac work and efficiency
... disprove the concept of FLA, was also given by Fenn [13] who reported that, for skeletal muscle, a contraction with shortening (thus smaller FLA) generated more heat (used more oxygen) than an isometric contraction (with larger FLA). However, this so-called Fenn effect is difficult to show in cardia ...
... disprove the concept of FLA, was also given by Fenn [13] who reported that, for skeletal muscle, a contraction with shortening (thus smaller FLA) generated more heat (used more oxygen) than an isometric contraction (with larger FLA). However, this so-called Fenn effect is difficult to show in cardia ...
Applied physiology: Understanding shock
... cells. These factors ensure that the diffusion of oxygen from the blood to the cells is facilitated. The oxygen made available to the body (or organ) is the oxygen delivery and is the product of the arterial concentration of oxygen and the flow to the body (or organ) per minute: Oxygen delivery ¼ ca ...
... cells. These factors ensure that the diffusion of oxygen from the blood to the cells is facilitated. The oxygen made available to the body (or organ) is the oxygen delivery and is the product of the arterial concentration of oxygen and the flow to the body (or organ) per minute: Oxygen delivery ¼ ca ...
Type of article: Original
... artery, pericardium (7-8%),and interventricular septum (8%) being less commonly involved. The disease may be asymptomatic or may present with clinical findings owing to the number, localization, and size of the cysts. In hydatid cysts located in the interventricular septum, disturbances of rhythm an ...
... artery, pericardium (7-8%),and interventricular septum (8%) being less commonly involved. The disease may be asymptomatic or may present with clinical findings owing to the number, localization, and size of the cysts. In hydatid cysts located in the interventricular septum, disturbances of rhythm an ...
CPR
... the depth of the chest. Then, relax pressure on the sternum completely. Do not remove your hands from the person’s sternum, but do allow the chest to return to its normal position between compressions. Relaxation and compression should be of equal duration. Avoid interruptions in chest compressions ...
... the depth of the chest. Then, relax pressure on the sternum completely. Do not remove your hands from the person’s sternum, but do allow the chest to return to its normal position between compressions. Relaxation and compression should be of equal duration. Avoid interruptions in chest compressions ...
Intraluminal Ascending Aorta Fibroma
... the rarity of different benign cardiac tumors prevents an accurate determination of a male-to-female ratio.6 On twodimensional echocardiography, cardiac fibromas are seen as a single, bright, intramural, echogenic mass. CT scanning is often performed and might provide clues regarding tissue characte ...
... the rarity of different benign cardiac tumors prevents an accurate determination of a male-to-female ratio.6 On twodimensional echocardiography, cardiac fibromas are seen as a single, bright, intramural, echogenic mass. CT scanning is often performed and might provide clues regarding tissue characte ...
The importance of basic science in clinical cardiology
... bedside and are invaluable in daily clinical practice. An even larger group of biomarkers have been linked to underlying disease processes such as inflammation, thrombosis, and increased oxidative stress, and have shown an incremental value for risk stratification, but have not made the transition i ...
... bedside and are invaluable in daily clinical practice. An even larger group of biomarkers have been linked to underlying disease processes such as inflammation, thrombosis, and increased oxidative stress, and have shown an incremental value for risk stratification, but have not made the transition i ...
CARDIO-RESPIRATORY EXERCISE PHYSIOLOGY WORKBOOK
... minute time period. During this time, count the number of times you inhale. RECORD this information in the table in the data section. 2. Repeat Step 1 two more times. Record your trials. Calculate an mean resting breathing rate. 3. Determine your breathing rate during exercise. Run in place for 1 mi ...
... minute time period. During this time, count the number of times you inhale. RECORD this information in the table in the data section. 2. Repeat Step 1 two more times. Record your trials. Calculate an mean resting breathing rate. 3. Determine your breathing rate during exercise. Run in place for 1 mi ...
Cardiovascular - Aurora Health Care
... Tim Rappis, 70, underwent Aug. 8, 2013, the 800th heart transplant at Aurora St. Luke’s Medical Center, Milwaukee, since the program started in 1968. While the milestone pushed Aurora St. Luke’s Cardiac Transplant Program into the top 5 percent in the nation, more importantly, it ended Rappis’ strug ...
... Tim Rappis, 70, underwent Aug. 8, 2013, the 800th heart transplant at Aurora St. Luke’s Medical Center, Milwaukee, since the program started in 1968. While the milestone pushed Aurora St. Luke’s Cardiac Transplant Program into the top 5 percent in the nation, more importantly, it ended Rappis’ strug ...
Arrhythmia
... through rest of heart muscle. Muscle depolarized by normally conducted impulse repolarized by time impulse traveling through area of slow conduction reaches it, thus initiating another cycle of depolarization. b. Altered conductivity (result from failure or delay of impulse transmission) 1) Block in ...
... through rest of heart muscle. Muscle depolarized by normally conducted impulse repolarized by time impulse traveling through area of slow conduction reaches it, thus initiating another cycle of depolarization. b. Altered conductivity (result from failure or delay of impulse transmission) 1) Block in ...
Surgical therapy for ischemic heart failure: Single
... classic aneurysm but also to ischemic dilated cardiomyopathy with akinesia or dyskinesia.6 SVR for patients with HF is increasingly performed, but the results are somewhat difficult to compare because the type of damage (ie, true aneurysm or dilated cardiomyopathy) is not well defined in the reporte ...
... classic aneurysm but also to ischemic dilated cardiomyopathy with akinesia or dyskinesia.6 SVR for patients with HF is increasingly performed, but the results are somewhat difficult to compare because the type of damage (ie, true aneurysm or dilated cardiomyopathy) is not well defined in the reporte ...
Paediatric cardiothoracic CTA
... • Example: Scan onset differs for conditions like caval-to-pulmonary artery connection compared to systemic arterial-to-pulmonary artery connection. • Artifacts: Coils, stents, clips, valves, septal occluders, pacing wires etc. Know about them before the scan! ...
... • Example: Scan onset differs for conditions like caval-to-pulmonary artery connection compared to systemic arterial-to-pulmonary artery connection. • Artifacts: Coils, stents, clips, valves, septal occluders, pacing wires etc. Know about them before the scan! ...
An Electronic Stethoscope with Diagnosis Capability
... At the beginning of systole, the mitral and tricuspid valves close, causing the S1 sound. The ventricles squeeze, forcing blood through the aortic and pulmonary valves into the atria and on to the body and lungs. When ventricular pressure drops, the arotic and pulmonary valves close, causing S2, sig ...
... At the beginning of systole, the mitral and tricuspid valves close, causing the S1 sound. The ventricles squeeze, forcing blood through the aortic and pulmonary valves into the atria and on to the body and lungs. When ventricular pressure drops, the arotic and pulmonary valves close, causing S2, sig ...
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.