Conduction of the Heart slides
... 70-80/min.; A-V node - 40-60/min.; Purkinje fibers - 15-40/min. Sinus node is pacemaker because of its faster discharge rate Intrinsic rate of subsequent parts is suppressed by “Overdrive suppression” ...
... 70-80/min.; A-V node - 40-60/min.; Purkinje fibers - 15-40/min. Sinus node is pacemaker because of its faster discharge rate Intrinsic rate of subsequent parts is suppressed by “Overdrive suppression” ...
(AF)? - Atrial Fibrillation Clinic
... If you are taking Warfarin (Coumadin), you will have to be careful about taking foods that are high in vitamin K. Foods that are high in Vitamin K include green leafy vegetables. Warfarin gets in the way of how vitamin K works in your body. Also, if you change the amount of food you eat that is hig ...
... If you are taking Warfarin (Coumadin), you will have to be careful about taking foods that are high in vitamin K. Foods that are high in Vitamin K include green leafy vegetables. Warfarin gets in the way of how vitamin K works in your body. Also, if you change the amount of food you eat that is hig ...
Peri-operative Cardiac Arrhythmias
... cardiovascular events occurring during and after the emergence of anaesthesia occur more frequently. Although the incidence is higher during cardiac surgery, intra-operative dysrrhythmias affect up to 29% of patients undergoing non-cardiac surgery. Relatively minor fluctuations in cardiovascular and ...
... cardiovascular events occurring during and after the emergence of anaesthesia occur more frequently. Although the incidence is higher during cardiac surgery, intra-operative dysrrhythmias affect up to 29% of patients undergoing non-cardiac surgery. Relatively minor fluctuations in cardiovascular and ...
Acute Management of Wide QRS
... Stratification: The incidence of sudden cardiac death in patients with WPW syndrome: range from 0.15 to 0.39% , over 3- to 10-year follow-up ...
... Stratification: The incidence of sudden cardiac death in patients with WPW syndrome: range from 0.15 to 0.39% , over 3- to 10-year follow-up ...
Promote™ RF CRT-D
... ejection fraction less than or equal to 35% and a prolonged QRS duration • maintain synchrony of the left and right ventricles in patients who have undergone an AV nodal ablation for chronic (permanent) atrial fibrillation and have NYHA Class II or III heart failure. Contraindications Contraindicati ...
... ejection fraction less than or equal to 35% and a prolonged QRS duration • maintain synchrony of the left and right ventricles in patients who have undergone an AV nodal ablation for chronic (permanent) atrial fibrillation and have NYHA Class II or III heart failure. Contraindications Contraindicati ...
Giant Right Atrium Yücel Özen, Murat Bulent Rabuş, Sabit Sarıkaya
... Giant right atrium is a rare condition and often seen in childhood due to congenital anomalies. The most important explicable factors for adults are valvuler pathologies. Both tricuspid valve stenosis and insufficiency can lead to right atrial dilatation. The underlying pathology in our patient was ...
... Giant right atrium is a rare condition and often seen in childhood due to congenital anomalies. The most important explicable factors for adults are valvuler pathologies. Both tricuspid valve stenosis and insufficiency can lead to right atrial dilatation. The underlying pathology in our patient was ...
Click to - Dr. Ben
... i. Short PR intervals (less than 0.12 second) indicate that the impulse originated somewhere other than the SA node. This variation is associated with junctional arrhythmias and preexcitation syndromes. ii. Prolonged PR intervals (greater than 0.20 second) may represent a conduction delay through th ...
... i. Short PR intervals (less than 0.12 second) indicate that the impulse originated somewhere other than the SA node. This variation is associated with junctional arrhythmias and preexcitation syndromes. ii. Prolonged PR intervals (greater than 0.20 second) may represent a conduction delay through th ...
PHYSIOLOGY OF HEART
... heart- irritating Mechanical stimulation during cardiac catheterisation Toxic irritation nicotine, caffeine, drugs Pulse deficite & bigeminal pulse ...
... heart- irritating Mechanical stimulation during cardiac catheterisation Toxic irritation nicotine, caffeine, drugs Pulse deficite & bigeminal pulse ...
Second degree heart block
... In this condition dropped beats occur because some impulses from the atria fail to conduct to the ventricles . In Mobitz type 1 there is progressive lengthening of successive PR intervals culminating in a dropped beat. The cycle then repeats itself . this is known as Wenchebach 's phenomenon and is ...
... In this condition dropped beats occur because some impulses from the atria fail to conduct to the ventricles . In Mobitz type 1 there is progressive lengthening of successive PR intervals culminating in a dropped beat. The cycle then repeats itself . this is known as Wenchebach 's phenomenon and is ...
Final Poster - Research
... beating of a human heart and a corresponding ECG to be used in the training of cardiothoracic surgery and perfusion students by the Vanderbilt University School of Medicine. • Our system will be a key component of the cardiac surgery training program at Vanderbilt and will be used to train at least ...
... beating of a human heart and a corresponding ECG to be used in the training of cardiothoracic surgery and perfusion students by the Vanderbilt University School of Medicine. • Our system will be a key component of the cardiac surgery training program at Vanderbilt and will be used to train at least ...
Conduction System of the Heart
... rate of discharge in sinus node is 70-80/min.; A-V node - 40-60/min.; Purkinje fibers - 15-40/min. l Sinus node is pacemaker because of its faster discharge rate l Intrinsic rate of subsequent parts is suppressed by “Overdrive suppression” ...
... rate of discharge in sinus node is 70-80/min.; A-V node - 40-60/min.; Purkinje fibers - 15-40/min. l Sinus node is pacemaker because of its faster discharge rate l Intrinsic rate of subsequent parts is suppressed by “Overdrive suppression” ...
Wolff–Parkinson–White syndrome presenting as atrial fibrillation in a
... Wolff-Parkinson-White (WPW) syndrome is a conduction disturbance characterized by the presence of an accessory pathway between the atria and the ventricles (Kent bundle), which provides an alternative route for ventricular activation [1]. WPW syndrome may occur in patients with a normal heart, but a ...
... Wolff-Parkinson-White (WPW) syndrome is a conduction disturbance characterized by the presence of an accessory pathway between the atria and the ventricles (Kent bundle), which provides an alternative route for ventricular activation [1]. WPW syndrome may occur in patients with a normal heart, but a ...
Electrocardiography Case Studies: Review Questions
... ST-/T-wave changes: nonspecific Diagnosis: atrial flutter with 4:1 conduction; nonspecific ST-and T-wave abnormalities Discussion: This 71-year-old woman presents with increasing dyspnea on exertion and is diagnosed with congestive heart failure, which is commonly associated with many supraventricul ...
... ST-/T-wave changes: nonspecific Diagnosis: atrial flutter with 4:1 conduction; nonspecific ST-and T-wave abnormalities Discussion: This 71-year-old woman presents with increasing dyspnea on exertion and is diagnosed with congestive heart failure, which is commonly associated with many supraventricul ...
click here - Cardiomyopathy UK
... heart muscle is structurally and functionally abnormal, in the absence of coronary artery disease, hypertension, valvular disease and congenital heart disease sufficient to cause the observed myocardial abnormality’1. Subtypes of cardiomyopathy are defined by their characteristic pattern of muscle m ...
... heart muscle is structurally and functionally abnormal, in the absence of coronary artery disease, hypertension, valvular disease and congenital heart disease sufficient to cause the observed myocardial abnormality’1. Subtypes of cardiomyopathy are defined by their characteristic pattern of muscle m ...
Canadian Cardiovascular Society Atrial Fibrillation Guidelines 2010
... in AF.11 In 2009, the CCS convened a primary panel of experts to undertake a comprehensive review of current knowledge and management strategies in the field of AF and to develop an up-to-date evidence-based set of recommendations, easily available to primary care physicians, emergency room physicia ...
... in AF.11 In 2009, the CCS convened a primary panel of experts to undertake a comprehensive review of current knowledge and management strategies in the field of AF and to develop an up-to-date evidence-based set of recommendations, easily available to primary care physicians, emergency room physicia ...
Purpose Radiofrequency (RF) ablation is an effective
... Radiofrequency (RF) ablation is an effective treatment for patients with atrial fibrillation and atrial flutter showing less recurrence of arrhythmia than antiarrhythmic medications. The success of the RF-ablation procedure depends on the creation of transmural lesions that block unwanted conduction ...
... Radiofrequency (RF) ablation is an effective treatment for patients with atrial fibrillation and atrial flutter showing less recurrence of arrhythmia than antiarrhythmic medications. The success of the RF-ablation procedure depends on the creation of transmural lesions that block unwanted conduction ...
Left Atrial Appendage: Useless or Priceless?
... Japanese researchers checked 50 patients with permanent non-valvular atrial fibrillation and 12 patients with atrial flutter for the presence of thrombi in the left atrial appendage (LAA) using transesophageal echocardiography (TEE). They found no thrombi in patients with atrial flutter nor in those ...
... Japanese researchers checked 50 patients with permanent non-valvular atrial fibrillation and 12 patients with atrial flutter for the presence of thrombi in the left atrial appendage (LAA) using transesophageal echocardiography (TEE). They found no thrombi in patients with atrial flutter nor in those ...
Rheumatic Heart Disease
... In patients with rheumatic valve disease and AF, the incidence of stroke is increased between 15 and 20 times above that of the general population … but patients with AF and no heart disease do not have an increased risk of stoke. The risk of serious thromboembolism in patients with AF is about 5% p ...
... In patients with rheumatic valve disease and AF, the incidence of stroke is increased between 15 and 20 times above that of the general population … but patients with AF and no heart disease do not have an increased risk of stoke. The risk of serious thromboembolism in patients with AF is about 5% p ...
lecture 5
... 1. Two different points on the body (bipolar leads) 2. One point on the body and a virtual reference point with zero electrical potential, located in the center of the heart (unipolar leads) ...
... 1. Two different points on the body (bipolar leads) 2. One point on the body and a virtual reference point with zero electrical potential, located in the center of the heart (unipolar leads) ...
Atrial Fibrillation, the Arrhythmia of the Elderly
... Abstract: Atrial fibrillation (AF) is a common clinical problem, particularly in the elderly, and in patients with organic heart disease. A small percentage of patients, have a potentially reversible cause. Atrial fibrillation is in most patients (approximately 70%) associated with chronic organic h ...
... Abstract: Atrial fibrillation (AF) is a common clinical problem, particularly in the elderly, and in patients with organic heart disease. A small percentage of patients, have a potentially reversible cause. Atrial fibrillation is in most patients (approximately 70%) associated with chronic organic h ...
managing atrial fibrillation - Heart and Stroke Foundation
... • NOAC preferred over warfarin • For those who have a true anticoagulation contraindication, consider LAA closure ...
... • NOAC preferred over warfarin • For those who have a true anticoagulation contraindication, consider LAA closure ...
Cardioversion of acute atrial fibrillation in the emergency department
... hemmorrhage, which is the most feared complication of anticoagulation therapy and confers a high risk of death and disability. HAS-BLED score which is a formal bleeding risk assessment (Table 3) is recommended for all patients with AF, and in patients with a HASBLED score ≥3, caution and regular rev ...
... hemmorrhage, which is the most feared complication of anticoagulation therapy and confers a high risk of death and disability. HAS-BLED score which is a formal bleeding risk assessment (Table 3) is recommended for all patients with AF, and in patients with a HASBLED score ≥3, caution and regular rev ...
AHEART August 46/2 - AJP
... The nonlinear predictive forecasting algorithm therefore consists of the following steps. 1) The technique of lags is used to reconstruct 8 different phase spaces with embedding dimensions from 3 to 10. 2) For each R-R interval in the time series (RRi ), the three nearest neighbors in each phase spa ...
... The nonlinear predictive forecasting algorithm therefore consists of the following steps. 1) The technique of lags is used to reconstruct 8 different phase spaces with embedding dimensions from 3 to 10. 2) For each R-R interval in the time series (RRi ), the three nearest neighbors in each phase spa ...
UvA-DARE (Digital Academic Repository) Diagnosing arrhythmias
... Palpitations and light-headedness are common symptoms for patients to visit their general practitioner (GP).1,2 In the majority of patients no underlying cardiac disease is present. However, these symptoms might be indicative of (serious) cardiac arrhythmias, such as supra-ventricular re-entry tachy ...
... Palpitations and light-headedness are common symptoms for patients to visit their general practitioner (GP).1,2 In the majority of patients no underlying cardiac disease is present. However, these symptoms might be indicative of (serious) cardiac arrhythmias, such as supra-ventricular re-entry tachy ...
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.