Atrial tachycardia
... Epidemiology • Incidence 35 cases per 100,000 persons per year. • Prevalence: 2.25 per 1000 (excluding atrial fibrillation, atrial flutter, and multifocal atrial tachycardia). • Increases with age. • Not usually associated with structural heart disease. • More common in Females 2:1 ...
... Epidemiology • Incidence 35 cases per 100,000 persons per year. • Prevalence: 2.25 per 1000 (excluding atrial fibrillation, atrial flutter, and multifocal atrial tachycardia). • Increases with age. • Not usually associated with structural heart disease. • More common in Females 2:1 ...
strategic review of cardiac physiology services in england: final report
... 2. Cardiac physiology services are predominantly located in secondary care provider organisations as part of the clinical speciality of cardiology, and provide both invasive and non invasive diagnostic and therapeutic procedures (see Appendix 1). The provision of cardiac physiology services is a key ...
... 2. Cardiac physiology services are predominantly located in secondary care provider organisations as part of the clinical speciality of cardiology, and provide both invasive and non invasive diagnostic and therapeutic procedures (see Appendix 1). The provision of cardiac physiology services is a key ...
2012 EHRA/HRS expert consensus statement on cardiac
... The physician responsible for the patients’ medical therapy regimen typically refers patients for consideration of CRT. Ensuring an optimal response to CRT requires the implanting physician make an independent assessment of the patient’s heart failure status and assure that the patient is on guideli ...
... The physician responsible for the patients’ medical therapy regimen typically refers patients for consideration of CRT. Ensuring an optimal response to CRT requires the implanting physician make an independent assessment of the patient’s heart failure status and assure that the patient is on guideli ...
No Slide Title
... Cardiac Conduction System • An impulse begins in the sinoatrial node (also called the pacemaker) and travels through the atria to the atrioventricular node and on through the ventricles. ...
... Cardiac Conduction System • An impulse begins in the sinoatrial node (also called the pacemaker) and travels through the atria to the atrioventricular node and on through the ventricles. ...
Different Relations Between Infarct Size and Occluded Bed
... (p < 0.05) on topographic mapping. Although arterial and left atrial pressures were similar in the two groups, heart rates were higher in the anesthetized dogs, both before (127 versus 88 beats/min, p < 0.001) and after (151 versus 109 beats/min, p < 0.001) occlusion. Myocardial blood flow distribut ...
... (p < 0.05) on topographic mapping. Although arterial and left atrial pressures were similar in the two groups, heart rates were higher in the anesthetized dogs, both before (127 versus 88 beats/min, p < 0.001) and after (151 versus 109 beats/min, p < 0.001) occlusion. Myocardial blood flow distribut ...
Sudden death in psychiatric patients: The role of neuroleptic drugs
... frequency of sudden death in a population, the percent of those cases that are referred to the medical examiner for autopsy, and the selection process that determines which cases are autopsied and which are not. This must vary considerably from community to community and consequently, suggests that ...
... frequency of sudden death in a population, the percent of those cases that are referred to the medical examiner for autopsy, and the selection process that determines which cases are autopsied and which are not. This must vary considerably from community to community and consequently, suggests that ...
Left Ventricular Hypertrophy in Obese Hypertensives: Is It Really
... left ventricular dysfunction was suspected if PFVE/PFVA ratio was more than 1.5, or if its reciprocal value PFVE/PFVA was less than 0.66. Markedly decreased early and mid-diastolic deceleration rate (represented by the slope following PFVE) was considered as an additional clue for the presence of le ...
... left ventricular dysfunction was suspected if PFVE/PFVA ratio was more than 1.5, or if its reciprocal value PFVE/PFVA was less than 0.66. Markedly decreased early and mid-diastolic deceleration rate (represented by the slope following PFVE) was considered as an additional clue for the presence of le ...
The Architecture of the Right Ventricular Outflow Tract
... right ventricle were performed on 15 dog hearts and seven normal human hearts. The hearts in six cases of ventricular septal defect were dissected completely, and partially in four others, including two cases of truncus arteriosus. Twenty-two additional human hearts with cono-truncal abnormalities f ...
... right ventricle were performed on 15 dog hearts and seven normal human hearts. The hearts in six cases of ventricular septal defect were dissected completely, and partially in four others, including two cases of truncus arteriosus. Twenty-two additional human hearts with cono-truncal abnormalities f ...
Module 3 - Cardiac Arrhythmias-Mechanisms of Arrhythmias
... Developed by Tony Curran (Clinical Nurse Educator) and Gill Sheppard (Clinical Nurse Specialist) Cardiology, June ...
... Developed by Tony Curran (Clinical Nurse Educator) and Gill Sheppard (Clinical Nurse Specialist) Cardiology, June ...
Distention of the Immature Left ... Fibroelastosis: An Animal Model of ...
... distention is a key factor in the development of EFE. In addition, it has been recognized that EFE ...
... distention is a key factor in the development of EFE. In addition, it has been recognized that EFE ...
Echocardiographic Evaluation of Ventricular Assist Devices
... shunting, particularly in the setting of pulmonary hypertension, which is relatively common in this group of patients (24, 25). Assessment of the Ascending Aorta The outflow cannula of an LVAD device is usually attached to the ascending aorta in as end to side anastomosis. As such, any pathology tha ...
... shunting, particularly in the setting of pulmonary hypertension, which is relatively common in this group of patients (24, 25). Assessment of the Ascending Aorta The outflow cannula of an LVAD device is usually attached to the ascending aorta in as end to side anastomosis. As such, any pathology tha ...
Name That Murmur — Eponyms for the Astute
... ISSUE: explaThe Englishman Carey Coombs was a rheumatic Sutton’s law: bankJOB:robber fever specialist whose book, Rheumatic Heart Dis- nation that he robbed banks because “that’s eases (1924), was based on more than 600 of his where the money is.” Dock taught that if “the cases.16 The Carey Coombs m ...
... ISSUE: explaThe Englishman Carey Coombs was a rheumatic Sutton’s law: bankJOB:robber fever specialist whose book, Rheumatic Heart Dis- nation that he robbed banks because “that’s eases (1924), was based on more than 600 of his where the money is.” Dock taught that if “the cases.16 The Carey Coombs m ...
cardiology grand rounds - Minneapolis Heart Institute Foundation
... with the planning of this activity. Dr. Robert Schwartz declared the following relationships ‐ stockholder: Cardiomind, Interface Biologics, Aritech, DSI/Transoma, InstyMeds, Intervalve, Medtronic, Osprey Medical, Stout Medical, Tricardia LLC, CoAptus Inc, Augustine Biomedical; scientific advisory ...
... with the planning of this activity. Dr. Robert Schwartz declared the following relationships ‐ stockholder: Cardiomind, Interface Biologics, Aritech, DSI/Transoma, InstyMeds, Intervalve, Medtronic, Osprey Medical, Stout Medical, Tricardia LLC, CoAptus Inc, Augustine Biomedical; scientific advisory ...
Redox regulation of resveratrol-mediated switching of death signal
... Classic preconditioning results in an immediate resistance effect lasting several hours and a delayed resistance effect appearing after 12-24 hours and lasting up to 72 hours. The mechanism of cardiac preconditioning is COMPLEX and debated, But appears to involve… - upregulation of antioxidant defen ...
... Classic preconditioning results in an immediate resistance effect lasting several hours and a delayed resistance effect appearing after 12-24 hours and lasting up to 72 hours. The mechanism of cardiac preconditioning is COMPLEX and debated, But appears to involve… - upregulation of antioxidant defen ...
Interventional Cardiology
... The indications for catheter ablation of arrhythmias in the CHD population are similar to the non-CHD population including significant symptoms, syncope or hemodynamic instability particularly when there has been failure or intolerance of medical therapy. Antiarrhythmic medications, such as beta blo ...
... The indications for catheter ablation of arrhythmias in the CHD population are similar to the non-CHD population including significant symptoms, syncope or hemodynamic instability particularly when there has been failure or intolerance of medical therapy. Antiarrhythmic medications, such as beta blo ...
Westermann D, Mersmann J, Melchior A, Petrik C, Freudenberger T
... Methods and Results—Experimental MI was induced in wild-type (WT) and bgn⫺/0 mice by permanent ligation of the left anterior descending coronary artery. Biglycan expression was strongly increased at 3, 7, and 14 days after MI in WT mice. bgn⫺/0 mice showed increased mortality rates after MI as a res ...
... Methods and Results—Experimental MI was induced in wild-type (WT) and bgn⫺/0 mice by permanent ligation of the left anterior descending coronary artery. Biglycan expression was strongly increased at 3, 7, and 14 days after MI in WT mice. bgn⫺/0 mice showed increased mortality rates after MI as a res ...
rheumatic fever: an update - International Journal of Pharmacy and
... particular M types of group a streptococci have rheumatogenic potential that can resist phagocytosis, traverses and penetrates bacterial cell wall, multiply rapidly in human tissues and ultimately initiates disease. M-protein is one of the best-defined determinants of bacterial virulence. The strept ...
... particular M types of group a streptococci have rheumatogenic potential that can resist phagocytosis, traverses and penetrates bacterial cell wall, multiply rapidly in human tissues and ultimately initiates disease. M-protein is one of the best-defined determinants of bacterial virulence. The strept ...
Apical Hypertrophic Cardiomyopathy
... HCM, the crucial technical issues are initially related to the precise identification of the target hypertrophic obstructive muscle and its coronary supply. It remains to be shown whether ASA can or should necessarily result in the widening of the intraventricular narrowing in apical HCM, as it does ...
... HCM, the crucial technical issues are initially related to the precise identification of the target hypertrophic obstructive muscle and its coronary supply. It remains to be shown whether ASA can or should necessarily result in the widening of the intraventricular narrowing in apical HCM, as it does ...
Regulation of Ventricular Contraction
... (left). The number adjacent to each curve with the intravenous administration of a seindicates the stimulus frequency. Worthy of lected dose of norepinephrine (fig. IB, right). note was the magnitude of change in the ventricular work produced at a given mean left Effects of Graded Stellate Ganglion ...
... (left). The number adjacent to each curve with the intravenous administration of a seindicates the stimulus frequency. Worthy of lected dose of norepinephrine (fig. IB, right). note was the magnitude of change in the ventricular work produced at a given mean left Effects of Graded Stellate Ganglion ...
Relation of Cardiac Surface QRST Distributions to Ventricular
... The relation between ventricular fibrillation threshold (VFT) and cardiac surface QRST area distributions was studied in eight pentobarbital-anesthetized dogs. Unipolar epicardial electrograms were recorded from 64 sites evenly distributed on the right and left ventricles. Localized areas of short r ...
... The relation between ventricular fibrillation threshold (VFT) and cardiac surface QRST area distributions was studied in eight pentobarbital-anesthetized dogs. Unipolar epicardial electrograms were recorded from 64 sites evenly distributed on the right and left ventricles. Localized areas of short r ...
Right ventricular failure in patients with the HeartMate
... attractive therapeutic option for select patients, only 2000 heart transplantations are performed each year in the United States, largely as a result of donor shortages.2 This continued limitation underscores the need for alternative avenues of treatment for this patient cohort. Mechanical circulato ...
... attractive therapeutic option for select patients, only 2000 heart transplantations are performed each year in the United States, largely as a result of donor shortages.2 This continued limitation underscores the need for alternative avenues of treatment for this patient cohort. Mechanical circulato ...
Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy
... 2. The overall yield of genetic testing for all available genes in probands who meet the revised Task Force criteria [Marcus et al 2010] approximates 50% [Quarta et al 2011]. Thus, if molecular genetic testing does not identify a disease-causing mutation in an individual who meets diagnostic criteri ...
... 2. The overall yield of genetic testing for all available genes in probands who meet the revised Task Force criteria [Marcus et al 2010] approximates 50% [Quarta et al 2011]. Thus, if molecular genetic testing does not identify a disease-causing mutation in an individual who meets diagnostic criteri ...
James M. Norton
... Definitions of preload and afterload. The basis for the definitions of both preload and afterload is the Law of LaPlace (also known as the surface tension law or the Law of Young-LaPlace), stated as follows for a thin-walled spherical structure: T ⫽ PR/2, where T is wall tension, P is chamber pressu ...
... Definitions of preload and afterload. The basis for the definitions of both preload and afterload is the Law of LaPlace (also known as the surface tension law or the Law of Young-LaPlace), stated as follows for a thin-walled spherical structure: T ⫽ PR/2, where T is wall tension, P is chamber pressu ...
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.