ECG-gated multidetector-row computed tomography in the
... any desired point throughout the cardiac cycle and the ESV and EDV can be reconstructed to assess ventricular function [6,7] . This acquisition technique is less likely to trigger cardiac arrhythmia. Prospective triggering has historically been used for unenhanced calcium scoring and has recently be ...
... any desired point throughout the cardiac cycle and the ESV and EDV can be reconstructed to assess ventricular function [6,7] . This acquisition technique is less likely to trigger cardiac arrhythmia. Prospective triggering has historically been used for unenhanced calcium scoring and has recently be ...
Actilyse ® powder and solvent for solution for injection and infusion
... The dose you are given depends on your body weight. The maximum dose of Actilyse is 100 mg but will be lower if you weigh less than 65 kg. The medicine is usually given as: • an initial injection of part of the dose into a vein • an infusion of the remainder of the dose over the following 2 ho ...
... The dose you are given depends on your body weight. The maximum dose of Actilyse is 100 mg but will be lower if you weigh less than 65 kg. The medicine is usually given as: • an initial injection of part of the dose into a vein • an infusion of the remainder of the dose over the following 2 ho ...
AED Frequently Asked Questions (External Audiences) Q What is
... A Sudden cardiac arrest (SCA), one of the leading causes of death in the United States, strikes over 300,000 victims each year, of which about five percent survive. Sudden cardiac arrest cases are usually due to abnormal heart rhythms called arrhythmias, the vast majority of which are ventricular fi ...
... A Sudden cardiac arrest (SCA), one of the leading causes of death in the United States, strikes over 300,000 victims each year, of which about five percent survive. Sudden cardiac arrest cases are usually due to abnormal heart rhythms called arrhythmias, the vast majority of which are ventricular fi ...
haemodynamics in tresus nuttallii and certain other bivalves
... rate or pressure. Pinching the extended siphons of Tresus caused contraction of the siphons, but changed the heart rate only if sea water had been previously injected into the blood sinuses. Conversely, continued tapping on the shell of Mytilus californianus caused closure of the shell, a brief inhi ...
... rate or pressure. Pinching the extended siphons of Tresus caused contraction of the siphons, but changed the heart rate only if sea water had been previously injected into the blood sinuses. Conversely, continued tapping on the shell of Mytilus californianus caused closure of the shell, a brief inhi ...
Our Heart Rate: Measuring Our Heart Rate at Rest
... 1. Whenever we exercise, our muscles consume a lot of oxygen and in turn start releasing more CO2 than when we are resting. How do you think these two actions are related to our heart rate? Students should understand that the heart rate rises during exercise, because we need to pump more oxygenate ...
... 1. Whenever we exercise, our muscles consume a lot of oxygen and in turn start releasing more CO2 than when we are resting. How do you think these two actions are related to our heart rate? Students should understand that the heart rate rises during exercise, because we need to pump more oxygenate ...
Cardiac Examination
... Precordial bulge suggests cardiac enlargement which may be : Acute: due to pericardial effusion. Chronic: due to heart disease dating since early childhood (either congenital or acquired) . ...
... Precordial bulge suggests cardiac enlargement which may be : Acute: due to pericardial effusion. Chronic: due to heart disease dating since early childhood (either congenital or acquired) . ...
Open Brochure Here - American Board of Cardiovascular Medicine
... Cardiovascular Nurses (ACCN), and the Society of Cardiac Monitoring (SCM). Jonni is a seasoned Author, International Faculty and Guest Speaker for Hospitals and Cardiology Organizations Worldwide. One participant stated that she should be cloned so everyone could have her in their unit. When you joi ...
... Cardiovascular Nurses (ACCN), and the Society of Cardiac Monitoring (SCM). Jonni is a seasoned Author, International Faculty and Guest Speaker for Hospitals and Cardiology Organizations Worldwide. One participant stated that she should be cloned so everyone could have her in their unit. When you joi ...
ATRIAL FIBRILLATION AND CORONARY BYPASS SURGERY
... has paradoxically increased in recent years as the result of surgical patients being older and with more severe illnesses. Many preoperative and postoperative factors have been suggested to increase the incidence of POAF after conventional CABG, however, little is known about intraoperative mechanis ...
... has paradoxically increased in recent years as the result of surgical patients being older and with more severe illnesses. Many preoperative and postoperative factors have been suggested to increase the incidence of POAF after conventional CABG, however, little is known about intraoperative mechanis ...
A Conceptual Model of Cardiac Electrophysiology based on UML
... spontaneously. Depolarization then spreads through the atrial myocardium to the AVnode. The attributes polarizationState and conductionSpeed are meant to keep track of this behavior. The depolarization wave then travels through the AV-node indicating so with navigational associations. The AV-node sl ...
... spontaneously. Depolarization then spreads through the atrial myocardium to the AVnode. The attributes polarizationState and conductionSpeed are meant to keep track of this behavior. The depolarization wave then travels through the AV-node indicating so with navigational associations. The AV-node sl ...
Ejection Fraction (EF)
... Limiting sodium, or salt, to 2,000 mg a day is an important part of maintaining a healthy heart and treating heart failure. With a low EF, your kidneys get less blood than they should. This make them unable to rid the body of excess water and salt. So eating too much salt can lead to even more fluid ...
... Limiting sodium, or salt, to 2,000 mg a day is an important part of maintaining a healthy heart and treating heart failure. With a low EF, your kidneys get less blood than they should. This make them unable to rid the body of excess water and salt. So eating too much salt can lead to even more fluid ...
... during obstructive apnoeas may also be a cause of ventricular arrhythmias [26]. Myocardial ischaemia causes arrhythmias, but was demonstrated only in OSA patients with coronary heart disease [4]. Our patients showed concentric left ventricular hypertrophy and increased left atrial diameter (table 3) ...
Heart Throb
... Have the students turn to pages 2–3 to establish a purpose for reading. Read the questions with the students. Add their answers to the brainstorm map graphic organizer. Explain that as they read the article in the book, they need to be thinking about the information on the brainstorm map and checkin ...
... Have the students turn to pages 2–3 to establish a purpose for reading. Read the questions with the students. Add their answers to the brainstorm map graphic organizer. Explain that as they read the article in the book, they need to be thinking about the information on the brainstorm map and checkin ...
Right ventricular dysfunction in advanced heart failure
... Due to its peculiar anatomic characteristics, it is easier for the right ventricle to tolerate volume overload than pressure ...
... Due to its peculiar anatomic characteristics, it is easier for the right ventricle to tolerate volume overload than pressure ...
Prognostic Impact of New-Onset Atrial Fibrillation in - J
... dyslipidemia. AF patients had lower prevalence of IHD and higher prevalence of DCM, HCM, VHD and HT. AF patients were more frequently treated with diuretics and digitalis, whereas there was no significant difference in the use of β-blockers or RAS inhibitors. As compared with patients without AF, AF ...
... dyslipidemia. AF patients had lower prevalence of IHD and higher prevalence of DCM, HCM, VHD and HT. AF patients were more frequently treated with diuretics and digitalis, whereas there was no significant difference in the use of β-blockers or RAS inhibitors. As compared with patients without AF, AF ...
Consensus Paper on Out-of-Hospital Cardiac Arrest in England Date: 16
... compressions they should do so as this remains the recommended treatment. If not, it is better to deliver ‘hands-only CPR’ (i.e. chest compressions) immediately and without interruption, rather than doing nothing or attempting ‘rescue breathing’ ineffectively. Q. Would every cardiac arrest victim su ...
... compressions they should do so as this remains the recommended treatment. If not, it is better to deliver ‘hands-only CPR’ (i.e. chest compressions) immediately and without interruption, rather than doing nothing or attempting ‘rescue breathing’ ineffectively. Q. Would every cardiac arrest victim su ...
Autonomic Blockade by Propranolol and Atropine to Study Intrinsic
... block autonomic influence on the resting HR in man. "Direct" cardiac effect of propranolol. In 10 patients undergoing cardiac catheterization, 0.04 mg/kg atropine and 0.2 mg/kg propranolol were given to inhibit autonomic activity. Then measurements of cardiac performance were made before and after i ...
... block autonomic influence on the resting HR in man. "Direct" cardiac effect of propranolol. In 10 patients undergoing cardiac catheterization, 0.04 mg/kg atropine and 0.2 mg/kg propranolol were given to inhibit autonomic activity. Then measurements of cardiac performance were made before and after i ...
Ventricular Tachycardia Catheter Ablation
... the airway is protected with a breathing tube. This ensures that the patient does not feel any discomfort during the procedure. ...
... the airway is protected with a breathing tube. This ensures that the patient does not feel any discomfort during the procedure. ...
Lecture Notes - Honors Human Physiology
... The AV valves open when the pressure in the atria exceeds that in the ventricles. After the AV valves open, ventricular pressure increases slightly as volume increases. At the end of this part of the cardiac cycle, the atria contract and the ventricles contain the maximal amount of blood that they w ...
... The AV valves open when the pressure in the atria exceeds that in the ventricles. After the AV valves open, ventricular pressure increases slightly as volume increases. At the end of this part of the cardiac cycle, the atria contract and the ventricles contain the maximal amount of blood that they w ...
Significance of the QX/QT Ratio and the Electrocardiogram
... Many authors have confirmed its value.'-" The criteria for a positive test, however, still remain somewhat controversial. The value of "ischemic" type ST-segment depression is well documented, but the problem of the significance of various degrees of junctional-type depression is still controversial ...
... Many authors have confirmed its value.'-" The criteria for a positive test, however, still remain somewhat controversial. The value of "ischemic" type ST-segment depression is well documented, but the problem of the significance of various degrees of junctional-type depression is still controversial ...
Cardiac Rhythm Analysis: Learning package
... relaxation of the myocardial cells. These electrical impulses are generated by a flow of positively charged ions back and forth across the cardiac cell membrane, creating an electrical current which results in depolarization (electrical activation), contraction, and repolarization (recovery) of the ...
... relaxation of the myocardial cells. These electrical impulses are generated by a flow of positively charged ions back and forth across the cardiac cell membrane, creating an electrical current which results in depolarization (electrical activation), contraction, and repolarization (recovery) of the ...
Central Blood Pressure Measurements and Antihypertensive Therapy
... Although central pressures are ideally measured directly by using invasive devices, several methods have been devised currently to derive central pressures from analyses of applanated carotid and radial pulses or carotid distension waves.6 Among several commercial and noncommercial devices,3,6 –11 t ...
... Although central pressures are ideally measured directly by using invasive devices, several methods have been devised currently to derive central pressures from analyses of applanated carotid and radial pulses or carotid distension waves.6 Among several commercial and noncommercial devices,3,6 –11 t ...
Cardiomyopathy Caused by Longterm Treatment with Chloroquine
... The cardiomyopathy is predominantly of the restrictive type (with diastolic dysfunction), but mainly systolic impairment has also been reported (Table 1). The most common pathological result in cardiac imaging is myocardial hypertrophy. Congestive heart failure is the prevailing clinical symptom. Ho ...
... The cardiomyopathy is predominantly of the restrictive type (with diastolic dysfunction), but mainly systolic impairment has also been reported (Table 1). The most common pathological result in cardiac imaging is myocardial hypertrophy. Congestive heart failure is the prevailing clinical symptom. Ho ...
Full text
... However, during the heart contracting, it could not easily measure the volume changes, called the stroke volume (the blood volume ejected by each ventricle with each beat). Therefore, the cardiac output (the total blood volume ejected by each ventricle per minute) of an insect was also difficult to ...
... However, during the heart contracting, it could not easily measure the volume changes, called the stroke volume (the blood volume ejected by each ventricle with each beat). Therefore, the cardiac output (the total blood volume ejected by each ventricle per minute) of an insect was also difficult to ...
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.