cardiovascular system
... Amount of blood pumped by each side (ventricle) of the heart in one minute Stroke volume (SV) Volume of blood pumped by each ventricle in one contraction (each heartbeat) Usually remains relatively constant About 70 mL of blood is pumped out of the left ventricle with each heartbeat Heart rate (HR) ...
... Amount of blood pumped by each side (ventricle) of the heart in one minute Stroke volume (SV) Volume of blood pumped by each ventricle in one contraction (each heartbeat) Usually remains relatively constant About 70 mL of blood is pumped out of the left ventricle with each heartbeat Heart rate (HR) ...
No Slide Title
... • Etiology: One or more ventricular cells are depolarizing and the impulses are abnormally conducting through the ...
... • Etiology: One or more ventricular cells are depolarizing and the impulses are abnormally conducting through the ...
QUANTIFYING NON-AXIAL DEFORMATIONS IN RAT
... 15 Histograms of ρ distributions for Animal 1....................................................40 16 Box plots comparing ρaffine and ρactual for Animal 1........................................41 17 Box plots comparing ρundeformed and ρactual for Animal 1.................................42 18 Hist ...
... 15 Histograms of ρ distributions for Animal 1....................................................40 16 Box plots comparing ρaffine and ρactual for Animal 1........................................41 17 Box plots comparing ρundeformed and ρactual for Animal 1.................................42 18 Hist ...
Cardiac Surgery: Aortic Aneurysms
... called an aortic dissection (see Figure 3). The inner tear causes bleeding into the other layers of the vessel. As the bleeding increases, the layers of tissue separate and weaken the aortic wall. This can lead to an aneurysm which can rupture. The tear can start anywhere along the aorta from the be ...
... called an aortic dissection (see Figure 3). The inner tear causes bleeding into the other layers of the vessel. As the bleeding increases, the layers of tissue separate and weaken the aortic wall. This can lead to an aneurysm which can rupture. The tear can start anywhere along the aorta from the be ...
Exercise Recommendations for Persons with Special Needs
... Exercise-related Sudden Death in Patient with Cardiac Diseases • CHD accounts for most exercise-related sudden deaths among those aged 35 years or above • A considerable number of fatal MIs were not due to significant stenosis of the coronary arteries but rupture of unstable coronary atheroscleroti ...
... Exercise-related Sudden Death in Patient with Cardiac Diseases • CHD accounts for most exercise-related sudden deaths among those aged 35 years or above • A considerable number of fatal MIs were not due to significant stenosis of the coronary arteries but rupture of unstable coronary atheroscleroti ...
View PDF - European Heart Journal
... an incidence of 0.07 per 1000 live births for PAVSD. It accounts for 1.5% of all forms of congenital heart disease and 20% of all forms of TOF. The source of pulmonary blood flow in PA-VSD is the systemic arterial circulation. PA-VSD is classified into three types according to the source of pulmonar ...
... an incidence of 0.07 per 1000 live births for PAVSD. It accounts for 1.5% of all forms of congenital heart disease and 20% of all forms of TOF. The source of pulmonary blood flow in PA-VSD is the systemic arterial circulation. PA-VSD is classified into three types according to the source of pulmonar ...
Atrial Flutter after Coronary Artery Bypass Grafting
... main independent predictor of postoperative atrial fibrillation in patients undergoing coronary revascularization. Preoperative factors Age is consistently the independent factor most strongly associated with postoperative atrial fibrillation.1,2) Age associated changes in the atria, such as dilatat ...
... main independent predictor of postoperative atrial fibrillation in patients undergoing coronary revascularization. Preoperative factors Age is consistently the independent factor most strongly associated with postoperative atrial fibrillation.1,2) Age associated changes in the atria, such as dilatat ...
Cellular Physiology and Biochemistr and Biochemistry
... especially for rabbit heart [12], isolated structured tissues like perfused ventricular wedge preparation [13], trabecula or papillary muscles, and single, enzymatically dissociated cardiomyocytes. Pharmacological experiments in Langendorff hearts provide evidence of drug action under conditions clo ...
... especially for rabbit heart [12], isolated structured tissues like perfused ventricular wedge preparation [13], trabecula or papillary muscles, and single, enzymatically dissociated cardiomyocytes. Pharmacological experiments in Langendorff hearts provide evidence of drug action under conditions clo ...
October 2016 Heartbeat: Rehabilitation of Digoxin
... digoxin has declined, partially because of concerns about safety. Recent cohort studies and meta-analyses of observational data have suggested that digoxin is associated with increased mortality. Even with the use of statistical adjustment and propensity matching, it is unclear whether observational ...
... digoxin has declined, partially because of concerns about safety. Recent cohort studies and meta-analyses of observational data have suggested that digoxin is associated with increased mortality. Even with the use of statistical adjustment and propensity matching, it is unclear whether observational ...
presentation ( format, 8MB)
... squatting, lying down • increase in intensity with decreased blood flow to the heart i.e. Valsalva, standing ...
... squatting, lying down • increase in intensity with decreased blood flow to the heart i.e. Valsalva, standing ...
NEW Bradycardia Booklet - April 2010.indd
... Most cases of syncope are due to the ‘common’ faint. However, other impor tant causes include defects of the ‘wiring’ of the hear t. Syncope can occur when the hear t slows or momentarily stops (asystole). Therefore oxygenated blood is not pumped to the brain, causing light-headedness, dizziness, fa ...
... Most cases of syncope are due to the ‘common’ faint. However, other impor tant causes include defects of the ‘wiring’ of the hear t. Syncope can occur when the hear t slows or momentarily stops (asystole). Therefore oxygenated blood is not pumped to the brain, causing light-headedness, dizziness, fa ...
Full Text - Archives of Cardiovascular Imaging
... study was to compare various LV twisting and untwisting parameters in healthy human subjects determined by velocity vector imaging (VVI) and tissue Doppler imaging (TDI) at rest. Patients and Methods: All volunteers (47 healthy subjects in two groups: 24 subjects in VVI group and 23 subjects in TDI ...
... study was to compare various LV twisting and untwisting parameters in healthy human subjects determined by velocity vector imaging (VVI) and tissue Doppler imaging (TDI) at rest. Patients and Methods: All volunteers (47 healthy subjects in two groups: 24 subjects in VVI group and 23 subjects in TDI ...
Cardiac Rhythm Management Devices (Part I)
... Chronic Bifascicular and Trifascicular Block. Major fascicles of the conduction system below the His bundle are the right bundle branch and the left anterior and posterior fascicles of the left bundle branch. The latter activate the left ventricular free wall.36 In addition, septal branches of the l ...
... Chronic Bifascicular and Trifascicular Block. Major fascicles of the conduction system below the His bundle are the right bundle branch and the left anterior and posterior fascicles of the left bundle branch. The latter activate the left ventricular free wall.36 In addition, septal branches of the l ...
The Correlation between Right Descending Pulmonary Artery
... our daily practice. Previous studies proved a good agreement between Doppler-estimated and catheterizationmeasured SPAP. Its validation and reliability has been confirmed in the past few decades.13-15 However, there are still some methodologic issues which should be taken into consideration. The fir ...
... our daily practice. Previous studies proved a good agreement between Doppler-estimated and catheterizationmeasured SPAP. Its validation and reliability has been confirmed in the past few decades.13-15 However, there are still some methodologic issues which should be taken into consideration. The fir ...
Possible signs, symptoms and treatment
... 8. After you have stabilized the injured person, go get professional medical help. 9. Don’t give the ill or injured person anything to eat or drink, including medications. 10. Wait for the ambulance to arrive while comforting the ill or injured person. Priorities of treatment The first priority with ...
... 8. After you have stabilized the injured person, go get professional medical help. 9. Don’t give the ill or injured person anything to eat or drink, including medications. 10. Wait for the ambulance to arrive while comforting the ill or injured person. Priorities of treatment The first priority with ...
Living with Heart Disease Strategies for Optimal Health
... use more than your doctor prescribes. Oxygen is supplied by medical equipment companies. Your nurse will contact the company and provide them with your doctor’s order for the oxygen. A respiratory therapist will then deliver the oxygen and instruct you and your family on the proper use and maintenan ...
... use more than your doctor prescribes. Oxygen is supplied by medical equipment companies. Your nurse will contact the company and provide them with your doctor’s order for the oxygen. A respiratory therapist will then deliver the oxygen and instruct you and your family on the proper use and maintenan ...
Effects of calcium, parathyroid hormone and
... It would thus seem reasonable to assume that uremic cardiomyopathy is related at least partially to secondary hyperparathyroidism and that HD-induced acute changes in serum calcium regulate LV function and electrical stability during treatment. The fact that patients with primary hyperparathyroidism ...
... It would thus seem reasonable to assume that uremic cardiomyopathy is related at least partially to secondary hyperparathyroidism and that HD-induced acute changes in serum calcium regulate LV function and electrical stability during treatment. The fact that patients with primary hyperparathyroidism ...
Guidelines for cardiac pacing and cardiac - Af
... in selected cases, by left ventricular pacing alone. The following recommendations consider cardiac pacing for heart failure delivered through biventricular pacing, since this mode is supported by the greatest body of evidence. This, however, does not preclude other pacing modes, such as LV pacing, ...
... in selected cases, by left ventricular pacing alone. The following recommendations consider cardiac pacing for heart failure delivered through biventricular pacing, since this mode is supported by the greatest body of evidence. This, however, does not preclude other pacing modes, such as LV pacing, ...
Left Atrial Size
... onward (42). Indeed, age-related LA enlargement is a reflection of the pathophysiologic perturbations that often accompany advancing age rather than a consequence of chronologic aging (9). The relation of LA size to race or ethnicity has not been sufficiently studied. Atrial structural remodeling. M ...
... onward (42). Indeed, age-related LA enlargement is a reflection of the pathophysiologic perturbations that often accompany advancing age rather than a consequence of chronologic aging (9). The relation of LA size to race or ethnicity has not been sufficiently studied. Atrial structural remodeling. M ...
Effect of 2,3,7,8-Tetrachlorodibenzo-p
... reasons for these species differences are not known. It is possible that TCDD fails to induce cardiac teratogenicity during mammalian development or, alternatively, that the effects are subtle in nature and have not been studied in sufficient detail to identify their occurrence. Thus, in this study ...
... reasons for these species differences are not known. It is possible that TCDD fails to induce cardiac teratogenicity during mammalian development or, alternatively, that the effects are subtle in nature and have not been studied in sufficient detail to identify their occurrence. Thus, in this study ...
Mathematical model of geometry and fibrous structure of - AJP
... a continuum rather than an assembly of discrete fiber bundles, as had been postulated by MacCallum (13) and Mall (14). Since this time there have been numerous A MATHEMATICAL MODEL of cardiac architecture, which provides realistic descriptions of both the geometry of studies of myocardial fiber orie ...
... a continuum rather than an assembly of discrete fiber bundles, as had been postulated by MacCallum (13) and Mall (14). Since this time there have been numerous A MATHEMATICAL MODEL of cardiac architecture, which provides realistic descriptions of both the geometry of studies of myocardial fiber orie ...
ICD in LV Dysfunction
... In 53 studies (Appendix Table 2, available at www .annals.org) enrolling patients with LV systolic dysfunction only (median LVEF, 0.31), rate of success of ICD implantation was 99% (CI, 98.8% to 99.3%) and peri-implantation deaths occurred in 1.2% (CI, 0.9% to 1.5%) of procedures. These studies vari ...
... In 53 studies (Appendix Table 2, available at www .annals.org) enrolling patients with LV systolic dysfunction only (median LVEF, 0.31), rate of success of ICD implantation was 99% (CI, 98.8% to 99.3%) and peri-implantation deaths occurred in 1.2% (CI, 0.9% to 1.5%) of procedures. These studies vari ...
Antitachycardia Pacing for Ventricular Tachycardia
... Relationship Between Monomorphic VT and Ventricular Fibrillation The underlying mechanism for ventricular fibrillation (VF) not associated with acute myocardial infarction is poorly understood. Ambulatory monitoring has clearly demonstrated that sustained monomorphic VT precedes some episodes of VF. ...
... Relationship Between Monomorphic VT and Ventricular Fibrillation The underlying mechanism for ventricular fibrillation (VF) not associated with acute myocardial infarction is poorly understood. Ambulatory monitoring has clearly demonstrated that sustained monomorphic VT precedes some episodes of VF. ...
Unit 9 - Cardiovascular System
... Amount of blood pumped by each side (ventricle) of the heart in one minute Stroke volume (SV) Volume of blood pumped by each ventricle in one contraction (each heartbeat) ...
... Amount of blood pumped by each side (ventricle) of the heart in one minute Stroke volume (SV) Volume of blood pumped by each ventricle in one contraction (each heartbeat) ...
Pulse Wave Analysis
... Early Detection of cardiovascular diseases is one of the most important usages for pulse wave monitoring. The convenience noninvasive technique makes it extremely suitable for widely use at community levels. Factors derived from pulse wave analysis have been used to detect hypertension, coronary art ...
... Early Detection of cardiovascular diseases is one of the most important usages for pulse wave monitoring. The convenience noninvasive technique makes it extremely suitable for widely use at community levels. Factors derived from pulse wave analysis have been used to detect hypertension, coronary art ...
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.