Current Perceptions of the Epidemiology of Atrial Fibrillation
... conferred a 1.4- and 1.6-fold AF risk and hypertension conferred a 1.5- and 1.4-fold risk after adjusting for other associated conditions. Diabetes was also found to be a significant independent predictor of AF in four other studies, associated with an average relative risk (RR) of 1.8; however, in ...
... conferred a 1.4- and 1.6-fold AF risk and hypertension conferred a 1.5- and 1.4-fold risk after adjusting for other associated conditions. Diabetes was also found to be a significant independent predictor of AF in four other studies, associated with an average relative risk (RR) of 1.8; however, in ...
Extreme Left Atrial Enlargement
... inl. of blood. The mi-ost capaciouls left atriuimi} ever described held 3 liters and was reported in 1904 by Minkowski) in- a patient witlh mnitral stenosis and insufficiency. The left atrium of our patient E.D., xvith a capacity of 2.5 liters, is the second largest we have found in the literatuire, ...
... inl. of blood. The mi-ost capaciouls left atriuimi} ever described held 3 liters and was reported in 1904 by Minkowski) in- a patient witlh mnitral stenosis and insufficiency. The left atrium of our patient E.D., xvith a capacity of 2.5 liters, is the second largest we have found in the literatuire, ...
Dysrhythmias of the AV Node and Ventricles notes
... o Temporary with external box or pulse generator o Permanent with internal pulse generator Pacing leads can be placed in o Right ventricle o Right atrium Demand Pacing The pacemaker senses the client’s own heart beat and fires an impulse only when the heart needs it. This is the mode that pace ...
... o Temporary with external box or pulse generator o Permanent with internal pulse generator Pacing leads can be placed in o Right ventricle o Right atrium Demand Pacing The pacemaker senses the client’s own heart beat and fires an impulse only when the heart needs it. This is the mode that pace ...
Document
... • Sharp, high-pitched sound present in 90% or more of patients with constrictive pericarditis • Heard in diastole • Occurs .09 to .12 sec after S3 • See figure 10-5 • Occurs after Heart Surgery, radiation therapy, viral infection, TB pericarditis • Diaphragm of the stethoscope listen at the lower le ...
... • Sharp, high-pitched sound present in 90% or more of patients with constrictive pericarditis • Heard in diastole • Occurs .09 to .12 sec after S3 • See figure 10-5 • Occurs after Heart Surgery, radiation therapy, viral infection, TB pericarditis • Diaphragm of the stethoscope listen at the lower le ...
Heart Physiology File
... sliding of the filaments begins • Duration of the AP and the contractile phase is much greater in cardiac muscle than in skeletal muscle • Repolarization results from inactivation of Ca2+ channels and opening of voltage-gated K+ channels ...
... sliding of the filaments begins • Duration of the AP and the contractile phase is much greater in cardiac muscle than in skeletal muscle • Repolarization results from inactivation of Ca2+ channels and opening of voltage-gated K+ channels ...
Twenty-four Hour Holter Monitoring in Finishing
... arrhythmias in cattle, the normal rhythm and arrhythmia prevalence in healthy cattle should be defined. Most prior reports of arrhythmia in cattle have been recordings of relatively shorter duration and in animals that were hospitalized or being handled for various reasons. Therefore, the objective ...
... arrhythmias in cattle, the normal rhythm and arrhythmia prevalence in healthy cattle should be defined. Most prior reports of arrhythmia in cattle have been recordings of relatively shorter duration and in animals that were hospitalized or being handled for various reasons. Therefore, the objective ...
- Korean Circulation Journal
... ty-four hours later, it was decided to perform percutaneous transseptal LA decompression under fluoroscopic guidance. Transseptal puncture was performed via the left femoral vein using a Brockenbrough transseptal needle with a 8-Fr Mullin sheath. A 28-Fr cannula was positioned in the LA after dilati ...
... ty-four hours later, it was decided to perform percutaneous transseptal LA decompression under fluoroscopic guidance. Transseptal puncture was performed via the left femoral vein using a Brockenbrough transseptal needle with a 8-Fr Mullin sheath. A 28-Fr cannula was positioned in the LA after dilati ...
Pharmacologic and Non-Pharmacologic Treatment of Chronic Atrial
... rhythm in congestive heart failure patients with AF. The DIAMOND CHF trial showed that it could reduce hospitalization due to heart failure. Heart failure worsening was reduced by 25%.25Dofetilide is known to be more effective in patients with persistent AF compared with those with paroxysmal AF, an ...
... rhythm in congestive heart failure patients with AF. The DIAMOND CHF trial showed that it could reduce hospitalization due to heart failure. Heart failure worsening was reduced by 25%.25Dofetilide is known to be more effective in patients with persistent AF compared with those with paroxysmal AF, an ...
Continuous Atrial Rate Monitoring for Atrial Rate Variability
... SD when appropriate. The significance of the correlation coefficient was analyzed by the linear fitting method, which use the linear least squares fitting. The difference between the SDNN determined for the PPand that determined for the RR-intervals was assessed with a two-sided paired test. P-value ...
... SD when appropriate. The significance of the correlation coefficient was analyzed by the linear fitting method, which use the linear least squares fitting. The difference between the SDNN determined for the PPand that determined for the RR-intervals was assessed with a two-sided paired test. P-value ...
Minimizing Complications from Temporary Epicardial Pacing Wires
... cardiomegaly, preoperative antiarrhythmic therapy, inotropic agents upon leaving the operating room, decalcification of the aortic annulus4 and/or the dynamics of myocardial functional recovery. Complications of TEPW can be reduced by attention to certain details involved in both technical aspects of ...
... cardiomegaly, preoperative antiarrhythmic therapy, inotropic agents upon leaving the operating room, decalcification of the aortic annulus4 and/or the dynamics of myocardial functional recovery. Complications of TEPW can be reduced by attention to certain details involved in both technical aspects of ...
Atrial Fibrillation In Heart Failure
... episodes. Atrial fibrillation may be persistent if episodes last for at least 7 days, or paroxysmal if when less than 7 days. Patients may alternate between the two states; for example, when a patient experiences a new episode of AF that has lasted for a few hours which has been preceded by episodes ...
... episodes. Atrial fibrillation may be persistent if episodes last for at least 7 days, or paroxysmal if when less than 7 days. Patients may alternate between the two states; for example, when a patient experiences a new episode of AF that has lasted for a few hours which has been preceded by episodes ...
Warfarin (Coumadin®, Jantoven®) Considerations for Use*
... Inhibitors and inducers of CYP2C9, 1A2, or 3A4 may change warfarin exposure. Concomitant use of other anticoagulants, antiplatelet agents, nonsteroidal anti-inflammatory agents, or serotonin reuptake inhibitors, may increase bleeding risk. Closely monitor INR when starting or stopping an antib ...
... Inhibitors and inducers of CYP2C9, 1A2, or 3A4 may change warfarin exposure. Concomitant use of other anticoagulants, antiplatelet agents, nonsteroidal anti-inflammatory agents, or serotonin reuptake inhibitors, may increase bleeding risk. Closely monitor INR when starting or stopping an antib ...
A Simulation Study - Computers in Cardiology
... far been inaccessible in human and animal models. Conversely, some recent studies have compared phase mapping in atria to other mapping techniques and have identified certain limitations [4-6]. Hence, the aim of this study was to evaluate the accuracy of the features that are used to guide AF ablati ...
... far been inaccessible in human and animal models. Conversely, some recent studies have compared phase mapping in atria to other mapping techniques and have identified certain limitations [4-6]. Hence, the aim of this study was to evaluate the accuracy of the features that are used to guide AF ablati ...
EKG Criteria
... ventricular origin in succession at a rate greater than 100 beats per minute. There are no normal (narrow) looking QRS complexes. Consequences of VT depend on accompanying myocardial dysfunction. It may be well tolerated or associated with lifethreatening hemodynamic compromise. Treatment: If patien ...
... ventricular origin in succession at a rate greater than 100 beats per minute. There are no normal (narrow) looking QRS complexes. Consequences of VT depend on accompanying myocardial dysfunction. It may be well tolerated or associated with lifethreatening hemodynamic compromise. Treatment: If patien ...
WQRS-internist
... QTU interval in the sinus beats is at least 600 milliseconds. Note TU wave alternans in the first and second complexes. A late premature complex occurring in the downslope of the TU wave initiates an episode of ventricular tachycardia ...
... QTU interval in the sinus beats is at least 600 milliseconds. Note TU wave alternans in the first and second complexes. A late premature complex occurring in the downslope of the TU wave initiates an episode of ventricular tachycardia ...
Dronedarone for Maintenance of Sinus Rhythm in Atrial Fibrillation
... randomization. Excluded from the study were patients with permanent atrial fibrillation (i.e., a duration of at least 12 months); women who could become pregnant and who were not using birth control; patients who had had torsades de pointes; patients with persistent bradycardia of less than 50 beats ...
... randomization. Excluded from the study were patients with permanent atrial fibrillation (i.e., a duration of at least 12 months); women who could become pregnant and who were not using birth control; patients who had had torsades de pointes; patients with persistent bradycardia of less than 50 beats ...
Stroke volume and Cardiac output
... Cardiac response to exercise Using a practical example describe what you understand by the term sub-maximal. ...
... Cardiac response to exercise Using a practical example describe what you understand by the term sub-maximal. ...
View Dhiraj Gupta`s Resume / CV
... population of 2.8 million, and is the largest cardiac centre in the United Kingdom. I am a very high volume operator in interventional EP, and have performed over 200 ablation cases annually since 2009. I am the trust lead for Left Atrial Appendage Occluder Service, and our hospital is one of 10 sit ...
... population of 2.8 million, and is the largest cardiac centre in the United Kingdom. I am a very high volume operator in interventional EP, and have performed over 200 ablation cases annually since 2009. I am the trust lead for Left Atrial Appendage Occluder Service, and our hospital is one of 10 sit ...
Pacemakers and Implanted Defibrillators
... An electrode is placed next to the heart wall, and small electrical charges travel through the wire to the heart (usually the right side), causing it to contract. Most modern pacemakers have a sensing device that turns the pacemaker off when the natural heartbeat is above a certain level ...
... An electrode is placed next to the heart wall, and small electrical charges travel through the wire to the heart (usually the right side), causing it to contract. Most modern pacemakers have a sensing device that turns the pacemaker off when the natural heartbeat is above a certain level ...
Pediatric Left Atrial Myxoma: Surgical Excision and Mitral Valve Plasty
... cardiac tumors in patients of all ages.3) However, in pediatric patients, they are less common than rhabdomyomas and fibromas.4) Myxomas occur in all regions of the heart, and may result in compression of cardiac structures, valvular insufficiency, outflow tract obstruction, coronary emboli, and occ ...
... cardiac tumors in patients of all ages.3) However, in pediatric patients, they are less common than rhabdomyomas and fibromas.4) Myxomas occur in all regions of the heart, and may result in compression of cardiac structures, valvular insufficiency, outflow tract obstruction, coronary emboli, and occ ...
Recommendations for participation in leisure
... patients with these conditions; and (iii) by recommendations concerning competitive or semi-competitive sports participation. It needs to be stressed, however, that there is no clear division between recreational and (semi)competitive sports. Some patients may engage in highintensity exercise during ...
... patients with these conditions; and (iii) by recommendations concerning competitive or semi-competitive sports participation. It needs to be stressed, however, that there is no clear division between recreational and (semi)competitive sports. Some patients may engage in highintensity exercise during ...
EO_Paper3_AtrialSeptalDefect
... of the heart and the presence of the heart murmur are usually only detected in very serious cases), the afflicted child may not realize there is a problem until they grow up and develop medical complications from the defect. Most instances of atrial septal defect are not urgent causes for medical co ...
... of the heart and the presence of the heart murmur are usually only detected in very serious cases), the afflicted child may not realize there is a problem until they grow up and develop medical complications from the defect. Most instances of atrial septal defect are not urgent causes for medical co ...
Antiarrythmic drugs
... if the reentering impulse is too weak, conduction may fail, or the impulse may arrive so late that it collides with the next regular impulse. On the other hand, if conduction is too rapid, ie almost normal, bidirectional conduction rather than unidirectional block will occur. Even in the presence ...
... if the reentering impulse is too weak, conduction may fail, or the impulse may arrive so late that it collides with the next regular impulse. On the other hand, if conduction is too rapid, ie almost normal, bidirectional conduction rather than unidirectional block will occur. Even in the presence ...
Chapter 21: Blood Vessels and Circulation
... • The electrical events associated with an electrocardiogram ...
... • The electrical events associated with an electrocardiogram ...
Atrial fibrillation
Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms. Occasionally there may be heart palpitations, fainting, shortness of breath, or chest pain. The disease increases the risk of heart failure, dementia, and stroke.Hypertension and valvular heart disease are the most common alterable risk factors for AF. Other heart-related risk factors include heart failure, coronary artery disease, cardiomyopathy, and congenital heart disease. In the developing world valvular heart disease often occurs as a result of rheumatic fever. Lung-related risk factors include COPD, obesity, and sleep apnea. Other factors include excess alcohol intake, diabetes mellitus, and thyrotoxicosis. However, half of cases are not associated with one of these risks. A diagnosis is made by feeling the pulse and may be confirmed using an electrocardiogram (ECG). The typical ECG shows no P waves and an irregular ventricular rate.AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable. Ablation may prevent recurrence in some people. Depending on the risk of stroke either aspirin or anti-clotting medications such as warfarin or a novel oral anticoagulant may be recommended. While these medications reduce this risk, they increase rates of major bleeding.Atrial fibrillation is the most common serious abnormal heart rhythm. In Europe and North America, as of 2014, it affects about 2% to 3% of the population. This is an increase from 0.4 to 1% of the population around 2005. In the developing world about 0.6% of males and 0.4% of females are affected. The percentage of people with AF increases with age with 0.14% under 50 years old, 4% between 60 and 70 years old, and 14% over 80 years old being affected. A-fib and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. The first known report of an irregular pulse was by John Baptist Senac in 1749. This was first documented by ECG in 1909 by Thomas Lewis.