Supraventricular Tachycardia (SVT)
... heart races quite suddenly to rates as high as 200 beats per minute and usually wont slow down. The attacks may produce an uncomfortable feeling of palpitations, or chest pain, shortness of breath or dizziness. It is common during attacks to want to pass water. What Causes It: Normally the heart fol ...
... heart races quite suddenly to rates as high as 200 beats per minute and usually wont slow down. The attacks may produce an uncomfortable feeling of palpitations, or chest pain, shortness of breath or dizziness. It is common during attacks to want to pass water. What Causes It: Normally the heart fol ...
Document
... An ICD is used in patients at risk for: 1. Ventricular tachycardia (>100 bpm) 2. Ventricular fibrillation 3. Sudden cardiac death caused by arrhythmias An ICD is made up of two parts: 1. Pulse generator – battery plus circuits 2. One or two leads (wires) How the ICD Works: 1. Leads monitor your hear ...
... An ICD is used in patients at risk for: 1. Ventricular tachycardia (>100 bpm) 2. Ventricular fibrillation 3. Sudden cardiac death caused by arrhythmias An ICD is made up of two parts: 1. Pulse generator – battery plus circuits 2. One or two leads (wires) How the ICD Works: 1. Leads monitor your hear ...
ECG Diagnosis Atrial fibrillation (AF)
... 62-year-old man with hypertension and diabetes mellitus is evaluated because of substernal chest pressure radiating to the neck for the past 35 minutes. A 12-lead electrocardiogram is obtained upon his arrival in the ...
... 62-year-old man with hypertension and diabetes mellitus is evaluated because of substernal chest pressure radiating to the neck for the past 35 minutes. A 12-lead electrocardiogram is obtained upon his arrival in the ...
Procoralan Ivabradine Prescribing Information Refer to
... Refer to Summary of Product Characteristics (SPC) before prescribing. Presentation: Film-coated tablets, 5mg, 7.5mg. Indications: Symptomatic treatment of Chronic stable angina pectoris: in coronary artery disease adults with normal sinus rhythm and heart rate ≥ 70 bpm. Indicated in patients unable ...
... Refer to Summary of Product Characteristics (SPC) before prescribing. Presentation: Film-coated tablets, 5mg, 7.5mg. Indications: Symptomatic treatment of Chronic stable angina pectoris: in coronary artery disease adults with normal sinus rhythm and heart rate ≥ 70 bpm. Indicated in patients unable ...
Cardiovascular Physiology Today
... Impulse from SA node is blocked before it enters atria Latent pacemakers pick up authority No/small p-waves clue: Atrial fibrillation ...
... Impulse from SA node is blocked before it enters atria Latent pacemakers pick up authority No/small p-waves clue: Atrial fibrillation ...
179: ekg signs of disordered impulse formation or conduction
... accessory pathway known as the bundle of Kent. This accessory pathway is an abnormal electrical communication from the atria to the ventricles. Both AV re-entry and AV nodal re-entry tachycardias require an additional conduction pathway. The mechanisms; they form a self-perpetuating circle of depola ...
... accessory pathway known as the bundle of Kent. This accessory pathway is an abnormal electrical communication from the atria to the ventricles. Both AV re-entry and AV nodal re-entry tachycardias require an additional conduction pathway. The mechanisms; they form a self-perpetuating circle of depola ...
The Heart`s External Anatomy & Conduction
... heart called the coronary sinus ♥ Coronary sinus empties into right atrium ...
... heart called the coronary sinus ♥ Coronary sinus empties into right atrium ...
Presentation Slides - AAFP Learning Link
... warfarin, targeted at an INR of 2.5 (range: 2.0 to 3.0) because of the increased risk of future ischemic stroke faced by this set of patients. (1A) ...
... warfarin, targeted at an INR of 2.5 (range: 2.0 to 3.0) because of the increased risk of future ischemic stroke faced by this set of patients. (1A) ...
Chapter04_Detailed_Answers
... is a condition of excess thyroxin in the blood from an overactive thyroid gland. Thyroxin acts like a sympathomimetic agent resulting in an elevated heart rate. While anxiety can produce tachycardia it rarely does so to a level of 160 beats per minute. There is no evidence that the patient is either ...
... is a condition of excess thyroxin in the blood from an overactive thyroid gland. Thyroxin acts like a sympathomimetic agent resulting in an elevated heart rate. While anxiety can produce tachycardia it rarely does so to a level of 160 beats per minute. There is no evidence that the patient is either ...
Chessboard of atrial fibrillation: reentry or focus? Single or multiple
... related to VF (18), Garrey experimentally determined that a certain minimal size of atrial tissue is required for the induction and maintenance of AF (7). This hypothesis, known as the “critical mass of fibrillation” theory, remained commonly accepted for nearly a century for both AF and VF. The the ...
... related to VF (18), Garrey experimentally determined that a certain minimal size of atrial tissue is required for the induction and maintenance of AF (7). This hypothesis, known as the “critical mass of fibrillation” theory, remained commonly accepted for nearly a century for both AF and VF. The the ...
11.2 Regulation of the Heart
... the heart = SA node is contracting normally and bpm is between 60 100 ...
... the heart = SA node is contracting normally and bpm is between 60 100 ...
equine - Voorjaarsdagen
... appearing at rest when vagal tone is high. It is completely innocent as long as it disappears (often temporarily) with slight excitation of the horse or with exercise. In 2°AVB the underlying rhythm is regular but at regular intervals one beat (or sometimes 2) is blocked producing a pause that is ex ...
... appearing at rest when vagal tone is high. It is completely innocent as long as it disappears (often temporarily) with slight excitation of the horse or with exercise. In 2°AVB the underlying rhythm is regular but at regular intervals one beat (or sometimes 2) is blocked producing a pause that is ex ...
Document
... relatively narrow, both of which favour a supraventricular origin of the tachycardia. In addition, a former ECG already showed a bifascicular block (RBBB+LPFB) morphology during A-V sequential rhythm from the low right atrium (fig. 1b). To unveil the exact mechanism of the arrhythmia, careful analys ...
... relatively narrow, both of which favour a supraventricular origin of the tachycardia. In addition, a former ECG already showed a bifascicular block (RBBB+LPFB) morphology during A-V sequential rhythm from the low right atrium (fig. 1b). To unveil the exact mechanism of the arrhythmia, careful analys ...
Treatment of Atrial Fibrillation
... cut, the heart rate drops to about 40 beats per minute. Consequently, a pacemaker is implanted to establish a reliable, vigorous beat. The whole procedure can be performed in an hour or two, and patients are usually symptom free as a result. Patients are required to see their caregiver regularly for ...
... cut, the heart rate drops to about 40 beats per minute. Consequently, a pacemaker is implanted to establish a reliable, vigorous beat. The whole procedure can be performed in an hour or two, and patients are usually symptom free as a result. Patients are required to see their caregiver regularly for ...
Cardiac_Cycle
... • The cardiac cycle is the sequence of events in one heartbeat. • It has three phases. ...
... • The cardiac cycle is the sequence of events in one heartbeat. • It has three phases. ...
atrial_fibrillation_and_atrial_flutter
... special equipment, trained personnel, and general anesthesia • Pets with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in pets with severe underlying heart disease or le ...
... special equipment, trained personnel, and general anesthesia • Pets with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in pets with severe underlying heart disease or le ...
Atrial Fibrillation and Atrial Flutter
... special equipment, trained personnel, and general anesthesia • Pets with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in pets with severe underlying heart disease or le ...
... special equipment, trained personnel, and general anesthesia • Pets with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in pets with severe underlying heart disease or le ...
Constitutive Expression of phVEGF165 After Intramuscular Gene
... is considered intractable despite multiple-drug therapy and repeated cardioversions.1 Moreover, in epidemiological studies, about 60% of patients with atrial fibrillation have a chronic form. In most cases, the main problem is not converting to sinus rhythm but maintaining it for a long time and avo ...
... is considered intractable despite multiple-drug therapy and repeated cardioversions.1 Moreover, in epidemiological studies, about 60% of patients with atrial fibrillation have a chronic form. In most cases, the main problem is not converting to sinus rhythm but maintaining it for a long time and avo ...
arrhythmias following cardiac surgery
... This group accounted for 40% (19 cases) of the arrhythmias seen. Clinical and electrocardiographic examinations rarely fail to establish the nature of the arrhythmia; it is, however, much more difficult to determine whether there is a specific factor responsible. The common disturbances of rhythm oc ...
... This group accounted for 40% (19 cases) of the arrhythmias seen. Clinical and electrocardiographic examinations rarely fail to establish the nature of the arrhythmia; it is, however, much more difficult to determine whether there is a specific factor responsible. The common disturbances of rhythm oc ...
Pacers, ablation, cardioversion, telemetry, Intro to ACLS
... Overall rhythm irregular No P waves, unable to measure PR interval QRS=normal: Twave undeterminable Causes: Rheumatic fever, mitral valve stenosis, cad. HTN, MI, hyperthyroidism, COPD, CHF see pp. 604 ...
... Overall rhythm irregular No P waves, unable to measure PR interval QRS=normal: Twave undeterminable Causes: Rheumatic fever, mitral valve stenosis, cad. HTN, MI, hyperthyroidism, COPD, CHF see pp. 604 ...
THE AFIB REPORT
... of 22 respondents had low morning basal temperatures (an indication of low thyroid hormone ...
... of 22 respondents had low morning basal temperatures (an indication of low thyroid hormone ...
Inflammatory Response and Congestive Heart Failure Following
... increased white blood cell count at 12600 mm3, high-sensitivity C-reactive protein (hs-CRP) at 8.6 mg/dl and N-terminal probrain natriuretic peptide (NT-pro-BNP) levels at 839 pg/ml. Renal function was normal. The fourth day after the procedure, serum markers of inflammation including white blood ce ...
... increased white blood cell count at 12600 mm3, high-sensitivity C-reactive protein (hs-CRP) at 8.6 mg/dl and N-terminal probrain natriuretic peptide (NT-pro-BNP) levels at 839 pg/ml. Renal function was normal. The fourth day after the procedure, serum markers of inflammation including white blood ce ...
Anatomy of the conduction system
... which then branches into a left and right bundle branch. The right bundle branch is a cable-like structure, insulated from surrounding myocardium for most of its length. When it reaches the right ventricular apex it makes its initial electrical contact with myocardial cells of the anterior papillary ...
... which then branches into a left and right bundle branch. The right bundle branch is a cable-like structure, insulated from surrounding myocardium for most of its length. When it reaches the right ventricular apex it makes its initial electrical contact with myocardial cells of the anterior papillary ...
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.