Implantable Cardioverter
... ICD’s are used to treat ventricular tachycardia and ventricular fibrillation. ICD’s have aided with the prevention of sudden cardiac death in adults. Used to treat arrhythmias- atrial flutter, atrial fibrillation. ...
... ICD’s are used to treat ventricular tachycardia and ventricular fibrillation. ICD’s have aided with the prevention of sudden cardiac death in adults. Used to treat arrhythmias- atrial flutter, atrial fibrillation. ...
The epsilon waves clinical characterization and electrophysiological
... U wave: Last, inconstant and smallest deflection of ECG that is recorded immediately after T wave and before the P of the following cycle, of equal polarity to the preceding T, i.e. positive where T also is. Voltage of U is always lower than 50% of the width of the preceding T and generally between ...
... U wave: Last, inconstant and smallest deflection of ECG that is recorded immediately after T wave and before the P of the following cycle, of equal polarity to the preceding T, i.e. positive where T also is. Voltage of U is always lower than 50% of the width of the preceding T and generally between ...
Arterial stiffness: insights from Framingham and Iceland
... childhood [11,22]. As a result, some individuals may have less remodeling reserve than others, resulting in accelerated widening of PP as the hemodynamic demand increases or the aortic wall stiffens in later life. Consistent with the foregoing, there are important genetic contributions to CFPWV and ...
... childhood [11,22]. As a result, some individuals may have less remodeling reserve than others, resulting in accelerated widening of PP as the hemodynamic demand increases or the aortic wall stiffens in later life. Consistent with the foregoing, there are important genetic contributions to CFPWV and ...
Modification of ventricular repolarization in silent long QT
... Congenital long QT syndrome (LQTS) is a familial disorder characterized by ventricular repolarization that makes carriers vulnerable to malignant ventricular tachycardia, torsade de pointes, and sudden cardiac death. The most common subtypes, LQT1 and LQT2, are caused by loss-of-function mutations i ...
... Congenital long QT syndrome (LQTS) is a familial disorder characterized by ventricular repolarization that makes carriers vulnerable to malignant ventricular tachycardia, torsade de pointes, and sudden cardiac death. The most common subtypes, LQT1 and LQT2, are caused by loss-of-function mutations i ...
Left ventricular diastolic collapse in regional left heart
... Normal saline solution was infused into the left pericardial compartment at 5-ml intervals . Repeat hemodynamic and echocardiographic measurements were obtained at each period . The onset of left ventricular diastolic collapse, defined as a discrete, transient, inward motion of the left ventricular ...
... Normal saline solution was infused into the left pericardial compartment at 5-ml intervals . Repeat hemodynamic and echocardiographic measurements were obtained at each period . The onset of left ventricular diastolic collapse, defined as a discrete, transient, inward motion of the left ventricular ...
13421-45587-1
... A 62-year-old man with past medical history of asthma presented to the cardiovascular department with shortness of breath, chest tightness, fever, orthopnea, cough and expectoration for the past a week. Vital signs were normal: blood pressure 137/88 mmHg and heart rate 98 bpm. Her physical examinati ...
... A 62-year-old man with past medical history of asthma presented to the cardiovascular department with shortness of breath, chest tightness, fever, orthopnea, cough and expectoration for the past a week. Vital signs were normal: blood pressure 137/88 mmHg and heart rate 98 bpm. Her physical examinati ...
Cardiac Pumping and the Function of Ventricular
... There is a considerable number of monographs in the history of heart physiology and cardiology [165] , as well as chapters in books on the general history of medicine devoted to these topics. But they do not cover development up to the present day. It is thus meaningful to provid ...
... There is a considerable number of monographs in the history of heart physiology and cardiology [165] , as well as chapters in books on the general history of medicine devoted to these topics. But they do not cover development up to the present day. It is thus meaningful to provid ...
Cardiac Pacing
... transcutaneous cardiac pacing background indications - temporary cardiac pacing can be implemented via the insertion or application of intracardiac intraesophageal or transcutaneous leads this topic focuses, artificial cardiac pacemaker wikipedia - artificial cardiac pacemaker a pacemaker or artific ...
... transcutaneous cardiac pacing background indications - temporary cardiac pacing can be implemented via the insertion or application of intracardiac intraesophageal or transcutaneous leads this topic focuses, artificial cardiac pacemaker wikipedia - artificial cardiac pacemaker a pacemaker or artific ...
Discerning the Incidence of Symptomatic and Asymptomatic
... All patients underwent implantation of an ICM with an automatic AF detection algorithm that does not require patient activation (Reveal XT, Medtronic). The algorithm4 is based on R-wave detection and analysis of the irregularity of the R-R intervals to define AF. This algorithm has an overall accura ...
... All patients underwent implantation of an ICM with an automatic AF detection algorithm that does not require patient activation (Reveal XT, Medtronic). The algorithm4 is based on R-wave detection and analysis of the irregularity of the R-R intervals to define AF. This algorithm has an overall accura ...
Comparison of the vascular effects of adenosine in isolated mouse
... In experiments with 2-chloradenosine (CAD), the phenylephrine precontracted rings relaxed ⬎100% by higher concentration of CAD, and this was due to a decrease of phenylephrineinduced contraction in excess to the initial resting tension of 1 g. In the current study, an increase in the coronary flow w ...
... In experiments with 2-chloradenosine (CAD), the phenylephrine precontracted rings relaxed ⬎100% by higher concentration of CAD, and this was due to a decrease of phenylephrineinduced contraction in excess to the initial resting tension of 1 g. In the current study, an increase in the coronary flow w ...
... that cocaine enhanced the permeability of vascular endothelium which could augment the diffusion of atherogenic lipoproteins into the intima and thereby increase the predisposition to atherosclerosis develop¬ ment.33 Pathologic findings presented also showed moderate to severe aorta and coronary art ...
Perioperative right ventricular dysfunction
... regurgitation. Mitral regurgitation could be secondary to ischemia [36] or from left ventricular outflow tract obstruction [37]. Both conditions cause postcapillary pulmonary hypertension, but will have completely different medical or surgical management. Another example is hypoxia that can lead to ...
... regurgitation. Mitral regurgitation could be secondary to ischemia [36] or from left ventricular outflow tract obstruction [37]. Both conditions cause postcapillary pulmonary hypertension, but will have completely different medical or surgical management. Another example is hypoxia that can lead to ...
Factors Associated With Major Bleeding Events
... systemic embolism in patients with nonvalvular AF. The trial randomized 14,264 patients with AF who were at moderate-to-high risk for stroke. Elevated risk was indicated by a history of stroke, transient ischemic attack (TIA), or systemic embolism or at least 2 of the following risk factors: heart f ...
... systemic embolism in patients with nonvalvular AF. The trial randomized 14,264 patients with AF who were at moderate-to-high risk for stroke. Elevated risk was indicated by a history of stroke, transient ischemic attack (TIA), or systemic embolism or at least 2 of the following risk factors: heart f ...
Factors Associated With Major Bleeding Events
... systemic embolism in patients with nonvalvular AF. The trial randomized 14,264 patients with AF who were at moderate-to-high risk for stroke. Elevated risk was indicated by a history of stroke, transient ischemic attack (TIA), or systemic embolism or at least 2 of the following risk factors: heart f ...
... systemic embolism in patients with nonvalvular AF. The trial randomized 14,264 patients with AF who were at moderate-to-high risk for stroke. Elevated risk was indicated by a history of stroke, transient ischemic attack (TIA), or systemic embolism or at least 2 of the following risk factors: heart f ...
Diagnosis and Management of Cardiac Sarcoidosis
... to the patchy distribution of the granulomas, but it also may be related to the observation that disease progression is associated with extensive myocardial fibrosis so that an area previously containing granulomas loses them as fibrosis supervenes.26 In a 15-year period, 1235 patients underwent end ...
... to the patchy distribution of the granulomas, but it also may be related to the observation that disease progression is associated with extensive myocardial fibrosis so that an area previously containing granulomas loses them as fibrosis supervenes.26 In a 15-year period, 1235 patients underwent end ...
updated imaging guidelines for nuclear cardiology procedures
... Collimators. The selection of which collimator to use is one of the most important pieces of information supplied by these guidelines. A confounding aspect of this selection is that collimators with the same name (eg, general purpose) tend to vary in performance between manufacturers. The table abov ...
... Collimators. The selection of which collimator to use is one of the most important pieces of information supplied by these guidelines. A confounding aspect of this selection is that collimators with the same name (eg, general purpose) tend to vary in performance between manufacturers. The table abov ...
On the role of the pericardium in the Physioheart experimental setup
... it keeps left and right ventricle output equal, protecting the body from disturbed blood distribution. After removal of the pericardium, little or no direct ventricular interaction and limited ability to compensate rapidly for sudden changes were shown. As for material properties, it was shown that ...
... it keeps left and right ventricle output equal, protecting the body from disturbed blood distribution. After removal of the pericardium, little or no direct ventricular interaction and limited ability to compensate rapidly for sudden changes were shown. As for material properties, it was shown that ...
Unstable QT Interval Dynamics Precedes Ventricular Tachycardia
... myocardial infarction, 12 of whom had sustained VT (VT) and 12 nonsustained VT (NSVT), were used. From each patient ECG, 2 10-minute-long ECG recordings were extracted, 1 right before VT onset (onset epoch) and 1 at least 1 hour before it (control epoch). To ascertain how PA affects QTI dynamics sta ...
... myocardial infarction, 12 of whom had sustained VT (VT) and 12 nonsustained VT (NSVT), were used. From each patient ECG, 2 10-minute-long ECG recordings were extracted, 1 right before VT onset (onset epoch) and 1 at least 1 hour before it (control epoch). To ascertain how PA affects QTI dynamics sta ...
The Only EKG Book You`ll Ever Need, 5th Edition
... flow of electricity , an electrical current, that can be detected by electrodes placed on the surface of the body . After depolarization is complete, the cardiac cells are able to restore their resting polarity through a process called repol arizati on. This, too, can be sensed by recording electro ...
... flow of electricity , an electrical current, that can be detected by electrodes placed on the surface of the body . After depolarization is complete, the cardiac cells are able to restore their resting polarity through a process called repol arizati on. This, too, can be sensed by recording electro ...
TACLS Chapter 2 - Canadian Stroke Best Practice Recommendations
... The information in this resource is based on the Canadian Stroke Best Practice Recommendations, which outline the best ways to prevent, diagnose, treat, and care for people who have had a stroke. The recommendations are developed and updated every 2-3 years under the leadership of the Heart and Stro ...
... The information in this resource is based on the Canadian Stroke Best Practice Recommendations, which outline the best ways to prevent, diagnose, treat, and care for people who have had a stroke. The recommendations are developed and updated every 2-3 years under the leadership of the Heart and Stro ...
2014 ESC Guidelines on diagnosis and management
... troponin I, cardiac muscle troponin T, cardiac muscle tropomyosin alpha-1 chain transthoracic echocardiography transthyretin ventricular fibrillation vitamin K antagonist ventricular tachycardia World Health Organization ...
... troponin I, cardiac muscle troponin T, cardiac muscle tropomyosin alpha-1 chain transthoracic echocardiography transthyretin ventricular fibrillation vitamin K antagonist ventricular tachycardia World Health Organization ...
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.