Cardiovascular Structure and Function Cardiovascular System
... • Cardiac muscle cells shorter and joined by intercalated disks with gap junctions so minimal electrical resistance between cells • Cardiac muscle in atria and ventricles contracts synchronously • All or none principle applies to an entire area of heart muscle but only to a motor unit in skeletal mu ...
... • Cardiac muscle cells shorter and joined by intercalated disks with gap junctions so minimal electrical resistance between cells • Cardiac muscle in atria and ventricles contracts synchronously • All or none principle applies to an entire area of heart muscle but only to a motor unit in skeletal mu ...
determinants of cardiac output and principles of oxygen delivery
... – A balloon catheter is advanced into PA – Balloon at the tip is inflated – Creates static column of blood between catheter tip and left atrium – Thus, pressure at tip = pressure in LA ...
... – A balloon catheter is advanced into PA – Balloon at the tip is inflated – Creates static column of blood between catheter tip and left atrium – Thus, pressure at tip = pressure in LA ...
Mechanical Circulatory Support - OSU CCME account
... TEE recommended Q24 hours and to assess wall motion while weaning. Average recovery occurs in 3-6 days. ...
... TEE recommended Q24 hours and to assess wall motion while weaning. Average recovery occurs in 3-6 days. ...
Congenital Heart Center - The University of Chicago Medicine
... problems call for surgical care, pediatric cardiologists work closely with cardiovascular surgeons to build the best treatment plan for patients. Non-surgical options are always considered first. When surgery is needed, the most advanced surgical treatments for congenital heart disease are available ...
... problems call for surgical care, pediatric cardiologists work closely with cardiovascular surgeons to build the best treatment plan for patients. Non-surgical options are always considered first. When surgery is needed, the most advanced surgical treatments for congenital heart disease are available ...
InaHRS_2016_-_SND_apoplexy_rhd1
... with EF 46-48% suggestive of rheumatic heart disease. CTA and MRI reveals pituitary macroadenoma with feature of apoplexy. Patient was diagnosed with pituitary apoplexy and panhypopituitarism with stable bradycardia and rheumatic heart disease. Endoscopic transphenoidal surgery was performed. Patien ...
... with EF 46-48% suggestive of rheumatic heart disease. CTA and MRI reveals pituitary macroadenoma with feature of apoplexy. Patient was diagnosed with pituitary apoplexy and panhypopituitarism with stable bradycardia and rheumatic heart disease. Endoscopic transphenoidal surgery was performed. Patien ...
3Age 14-16 - SchoolScience.co.uk
... The effects of adrenalin on heart rate and pressure can be seen using the animation in figure 2.3 The animation allows students to add a beta-blocker to show how this can be used to lower high blood pressure. Students complete the worksheet Know your blood vessels to show how each type is specialised ...
... The effects of adrenalin on heart rate and pressure can be seen using the animation in figure 2.3 The animation allows students to add a beta-blocker to show how this can be used to lower high blood pressure. Students complete the worksheet Know your blood vessels to show how each type is specialised ...
presentation source
... with increasing concentrations of caffeine added. We hypothesized this because caffeine inhibits the activity of phosphodiesterase, which breaks down cyclic AMP. This increase in the amount of cyclic AMP affects the sympathetic nerves in the heart because it is a second messenger that causes the SA ...
... with increasing concentrations of caffeine added. We hypothesized this because caffeine inhibits the activity of phosphodiesterase, which breaks down cyclic AMP. This increase in the amount of cyclic AMP affects the sympathetic nerves in the heart because it is a second messenger that causes the SA ...
south florida community college
... become incompetent, allowing venous blood flow to be reversed. As back pressure increases and the calf muscle pump (muscle movement that squeezes venous blood back to the heart) fails, further venous distention results. - Discomfort from varicose veins varies dramatically among people and tends to b ...
... become incompetent, allowing venous blood flow to be reversed. As back pressure increases and the calf muscle pump (muscle movement that squeezes venous blood back to the heart) fails, further venous distention results. - Discomfort from varicose veins varies dramatically among people and tends to b ...
L-carnitina ENG
... • Do not use L-carnitine if you have an underactive thyroid gland: it may interfere with the thyroid hormone. • Do not take if you suffer from seizures. • Some anticoagulants interact with L-Carnitine: Acenocoumarol and Warfarin. ...
... • Do not use L-carnitine if you have an underactive thyroid gland: it may interfere with the thyroid hormone. • Do not take if you suffer from seizures. • Some anticoagulants interact with L-Carnitine: Acenocoumarol and Warfarin. ...
Echocardiogram Stress Test
... heart rhythm during the exam. A blood pressure cuff will be kept your arm. The Sonographer will then place a small ultrasound probe with gel on your chest to obtain the resting images of your heart in many different angles. Following the resting images, you will then begin to exercise by walking on ...
... heart rhythm during the exam. A blood pressure cuff will be kept your arm. The Sonographer will then place a small ultrasound probe with gel on your chest to obtain the resting images of your heart in many different angles. Following the resting images, you will then begin to exercise by walking on ...
pediatric cardiac disease notes
... Heart Failure Heart is not able to maintain cardiac output at level that meets demands of body Result from poor ventricular function Complication of many congenital heart defects Acquired Cardiovascular Disorders Systemic hypertension o In children defined as systolic and diastolic pressure ...
... Heart Failure Heart is not able to maintain cardiac output at level that meets demands of body Result from poor ventricular function Complication of many congenital heart defects Acquired Cardiovascular Disorders Systemic hypertension o In children defined as systolic and diastolic pressure ...
Slide 1
... headache(potentially due to mycotic aneurysm),seizure,encephalopathy Renal insufficiency due to glomerulonephritis ,emboli, impaired hemodynamic andvantimicrobial toxicities. ...
... headache(potentially due to mycotic aneurysm),seizure,encephalopathy Renal insufficiency due to glomerulonephritis ,emboli, impaired hemodynamic andvantimicrobial toxicities. ...
QHREDGS Peptide in Survival and Expansion of Human Stem Cells
... going to the heart and thus leading to myocardial necrosis and apoptosis. Each year for example, 17,000,000 people die from heart disease worldwide. The mortality rate reaches as high as 30%. With more than 650,000 new cases diagnosed every year in the US, the annual mortality for heart failure is 1 ...
... going to the heart and thus leading to myocardial necrosis and apoptosis. Each year for example, 17,000,000 people die from heart disease worldwide. The mortality rate reaches as high as 30%. With more than 650,000 new cases diagnosed every year in the US, the annual mortality for heart failure is 1 ...
Topics in Toxicology 2007
... Was the myth busted in 1939? “Our experiments suggest that the danger of injecting calcium into the digitalized patient is simply that of injecting calcium into any patient with cardiac disease . . . certainly this danger cannot be great in practice, considering the widespread use of calcium intrav ...
... Was the myth busted in 1939? “Our experiments suggest that the danger of injecting calcium into the digitalized patient is simply that of injecting calcium into any patient with cardiac disease . . . certainly this danger cannot be great in practice, considering the widespread use of calcium intrav ...
Chapter 42: Circulatory System Circulatory System – Heart, blood
... o Steroid used to keep membrane fluidity (temp buffer) o Low-density lipoprotein (LDL from liver) delivers cholesterol to cells for membrane production o High-density lipoprotein (HDL) scavenges cholesterol for return to liver o High LDL/HDL ratio = High risk of heart disease Atherosclerosis o Gro ...
... o Steroid used to keep membrane fluidity (temp buffer) o Low-density lipoprotein (LDL from liver) delivers cholesterol to cells for membrane production o High-density lipoprotein (HDL) scavenges cholesterol for return to liver o High LDL/HDL ratio = High risk of heart disease Atherosclerosis o Gro ...
Heart 3: Valves
... These valves prevent the backflow of blood into the atria during ventricular contraction/ systolic phase of cardiac cycle. The right atrioventricular (AV) valve has three cusps/flaps, therefore known as ‘tricuspid valve’, while, the left AV valve has two cusps and known as Bicuspid valve or the Mitr ...
... These valves prevent the backflow of blood into the atria during ventricular contraction/ systolic phase of cardiac cycle. The right atrioventricular (AV) valve has three cusps/flaps, therefore known as ‘tricuspid valve’, while, the left AV valve has two cusps and known as Bicuspid valve or the Mitr ...
Cardiovascular System Overview
... conduction system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers. The SA node (anatomical pacemaker) starts the sequence by causing the atrial muscles to contract. From there, the signal travels to the AV node, through the bundle of His, down the bundle branches, and t ...
... conduction system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers. The SA node (anatomical pacemaker) starts the sequence by causing the atrial muscles to contract. From there, the signal travels to the AV node, through the bundle of His, down the bundle branches, and t ...
Pulmonary Atresia - American Heart Association
... Note: before reading the specific defect information and the image(s) that are associated with them, it will be helpful to review normal heart function. What is it? In pulmonary atresia, no pulmonary valve exists. Blood can’t flow from the right ventricle into the pulmonary artery and on to the lung ...
... Note: before reading the specific defect information and the image(s) that are associated with them, it will be helpful to review normal heart function. What is it? In pulmonary atresia, no pulmonary valve exists. Blood can’t flow from the right ventricle into the pulmonary artery and on to the lung ...
Document
... Result: • slower than normal ventricular rate • no coordination between P waves and QRS complexes Treatment: • Use of artificial pacemakers • agonists at ß-adrenoceptors may be useful in the short term but in general drug treatment is of limited use for heart block ...
... Result: • slower than normal ventricular rate • no coordination between P waves and QRS complexes Treatment: • Use of artificial pacemakers • agonists at ß-adrenoceptors may be useful in the short term but in general drug treatment is of limited use for heart block ...
A One-year old infant with multiple cardiac masses and congenital
... Rhabdomyomas are considered hamartomatous lesions of cardiac myocytes (1-4) and are the most common cardiac mass lesions seen in infancy and childhood (2,4). Rhabdomyomas have a well-known association with tuberous sclerosis and their myriad manifestations. The lesion may, however, regress with time ...
... Rhabdomyomas are considered hamartomatous lesions of cardiac myocytes (1-4) and are the most common cardiac mass lesions seen in infancy and childhood (2,4). Rhabdomyomas have a well-known association with tuberous sclerosis and their myriad manifestations. The lesion may, however, regress with time ...
CRT in Patients with Permanent AF vs. Sinus Rhythm: Symptomatic
... • CIHR funding for 5 years • Primary hypothesis: • Catheter ablation-based atrial fibrillation rhythm control as compared with rate control in patients with heart failure of either impaired LV function (LVEF ≤ 45%) or preserved LV function (LVEF > 45%) will reduce all cause mortality or heart failur ...
... • CIHR funding for 5 years • Primary hypothesis: • Catheter ablation-based atrial fibrillation rhythm control as compared with rate control in patients with heart failure of either impaired LV function (LVEF ≤ 45%) or preserved LV function (LVEF > 45%) will reduce all cause mortality or heart failur ...
Heart Rate Variability (HRV)
... Any reading below this indicates that the parasympathetic nervous system is under active, while any reading above this threshold may indicate a hyper functioning situation. In physiological terms, the parasympathetic system is concerned with conservation and restoration of energy, as it causes a red ...
... Any reading below this indicates that the parasympathetic nervous system is under active, while any reading above this threshold may indicate a hyper functioning situation. In physiological terms, the parasympathetic system is concerned with conservation and restoration of energy, as it causes a red ...
Cardiac Medications
... the refractory period of the AV node - thus, there is a negative chronotropic effect Reduced vasospasms of epicardial vessels - reduces Prinzmetal angina ...
... the refractory period of the AV node - thus, there is a negative chronotropic effect Reduced vasospasms of epicardial vessels - reduces Prinzmetal angina ...
God is With Us! A Eucharistic Miracle for our times
... Host be professionally photographed. The photos were taken on September 6. They clearly show that the Host, which had become a fragment of bloodied flesh, had grown significantly in size. For several years the Host remained in the tabernacle, the whole affair being kept a strict secret. Since the Ho ...
... Host be professionally photographed. The photos were taken on September 6. They clearly show that the Host, which had become a fragment of bloodied flesh, had grown significantly in size. For several years the Host remained in the tabernacle, the whole affair being kept a strict secret. Since the Ho ...
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.