Document
... A. sequential contraction of atria and ventricles B. slow conduction of electric impulses in the ventricles C. slow conduction of electric impulses in AV node D. simultaneous contraction of ventricular muscles 41. Which of the following statements about diastole is false? A. Diastole is absolutely n ...
... A. sequential contraction of atria and ventricles B. slow conduction of electric impulses in the ventricles C. slow conduction of electric impulses in AV node D. simultaneous contraction of ventricular muscles 41. Which of the following statements about diastole is false? A. Diastole is absolutely n ...
New concepts for old drugs to maintain sinus rhythm in patients with
... drug therapy duration was reduced by 99.4% compared with standard long-term therapy, from 450 day-doses per patient (follow-up 15 months) to 2.7 day-doses per patient (569 treated episodes in 210 patients). In patients who meet the inclusion criteria for the study, “pill-in-the-pocket” treatment may ...
... drug therapy duration was reduced by 99.4% compared with standard long-term therapy, from 450 day-doses per patient (follow-up 15 months) to 2.7 day-doses per patient (569 treated episodes in 210 patients). In patients who meet the inclusion criteria for the study, “pill-in-the-pocket” treatment may ...
Atrial fibrillation basics - Christiana Care Health System
... 2.2 million Americans have atrial fibrillation. Median age is 75 years Lifetime risk of developing atrial fibrillation is 1:6, and increases to 1:4 in men and women older than 40 years The mortality rate of patients with atrial fibrillation is about double that of patients in normal rhythm, an ...
... 2.2 million Americans have atrial fibrillation. Median age is 75 years Lifetime risk of developing atrial fibrillation is 1:6, and increases to 1:4 in men and women older than 40 years The mortality rate of patients with atrial fibrillation is about double that of patients in normal rhythm, an ...
SYSTEMATIC APPROACH FOR ANALYZING CARDIAC RHYTHMS
... 6. Adenosine by Cheryl Bock Sing to “O Christmas Tree” Adenosine for SVT, a naturally occurring amino acid Adenosine for SVT, a naturally occurring amino acid A rapid bolus is the key, 1st 6 milligrams, then 12 you see A sinus pause, then RSR, we’ll get an ECG, then let you be 7. Atropine Sing to “Y ...
... 6. Adenosine by Cheryl Bock Sing to “O Christmas Tree” Adenosine for SVT, a naturally occurring amino acid Adenosine for SVT, a naturally occurring amino acid A rapid bolus is the key, 1st 6 milligrams, then 12 you see A sinus pause, then RSR, we’ll get an ECG, then let you be 7. Atropine Sing to “Y ...
Supraventricular Tachycardia (SVT)
... Some children with SVT will say that their heart feels like it is racing. They may feel sweaty, short of breath, or dizzy. Infants may have trouble feeding or become lethargic or ...
... Some children with SVT will say that their heart feels like it is racing. They may feel sweaty, short of breath, or dizzy. Infants may have trouble feeding or become lethargic or ...
presentation source
... Rate Of P Wave Appearance Of 250-350 QRS Complex Is Followed By A Regular Pattern Of P Waves - 2:1, 3:1 or 4:1 Block ...
... Rate Of P Wave Appearance Of 250-350 QRS Complex Is Followed By A Regular Pattern Of P Waves - 2:1, 3:1 or 4:1 Block ...
Cardiac electrical activity
... Stop completely the rhythmical excitation by the S-A node Block completely transmission of cardiac impulses from the atria to the ventricle Some point in the Purkinje fibers develops a rhythm of ...
... Stop completely the rhythmical excitation by the S-A node Block completely transmission of cardiac impulses from the atria to the ventricle Some point in the Purkinje fibers develops a rhythm of ...
L2-Cardiac electrical activity
... Stop completely the rhythmical excitation by the S-A node Block completely transmission of cardiac impulses from the atria to the ventricle Some point in the Purkinje fibers develops a rhythm of ...
... Stop completely the rhythmical excitation by the S-A node Block completely transmission of cardiac impulses from the atria to the ventricle Some point in the Purkinje fibers develops a rhythm of ...
Class I: Na Channel Blockers
... Digoxin and amiodarone may be effective if LV dysfx and decompensated CHF to slow ...
... Digoxin and amiodarone may be effective if LV dysfx and decompensated CHF to slow ...
Atrioventricular Reciprocating Tachycardia Mediated by Twin
... 21-year-old man with univentricular and ...
... 21-year-old man with univentricular and ...
Understanding Basic EKG - Understanding EKG Basics
... The plateau that immediately follows the P wave represents atrial systole, when calcium channels open slowly and potassium channels close (at this time mechanical contraction of the atria takes ...
... The plateau that immediately follows the P wave represents atrial systole, when calcium channels open slowly and potassium channels close (at this time mechanical contraction of the atria takes ...
Slide 1
... 3. Are all normal waves present and recognizable? – See examples in fig. 14-23, p. 495 4. Does a QRS complex follow each P wave; is the PR segment constant in length? – If not, then a problem with signal conduction through the AV node may be present 5. Look for subtle changes: – For example: Altera ...
... 3. Are all normal waves present and recognizable? – See examples in fig. 14-23, p. 495 4. Does a QRS complex follow each P wave; is the PR segment constant in length? – If not, then a problem with signal conduction through the AV node may be present 5. Look for subtle changes: – For example: Altera ...
Cardiac Assessment in the Operating Room (Part 1)
... • Atrial flutter – Regular atrial rate, variable conduction – Also can be seen by TEE or visualization ...
... • Atrial flutter – Regular atrial rate, variable conduction – Also can be seen by TEE or visualization ...
Supraventricular tachycardia
... those with globally impaired left ventricular function, atrial fibrillation may have profound haemodynamic consequences. Paroxysmal atrial fibrillation can occur in apparently normal individuals. Whilst it might be surmised that they should tolerate the arrhythmia well, the reverse is often true. Ma ...
... those with globally impaired left ventricular function, atrial fibrillation may have profound haemodynamic consequences. Paroxysmal atrial fibrillation can occur in apparently normal individuals. Whilst it might be surmised that they should tolerate the arrhythmia well, the reverse is often true. Ma ...
Impact of Pregnancy in Women after Atrial Repair for Transposition
... arteries (TGA) are now in reproductive age. Atrial baffle leaks and obstruction. Supraventricular arrhythmias: • Synus disfunction. • Tachyarrhythmias. Tricuspid regurgitation. Systemic Right ventricle: progressive dilation and dysfunction. Asymptomatic Exercise capacity ...
... arteries (TGA) are now in reproductive age. Atrial baffle leaks and obstruction. Supraventricular arrhythmias: • Synus disfunction. • Tachyarrhythmias. Tricuspid regurgitation. Systemic Right ventricle: progressive dilation and dysfunction. Asymptomatic Exercise capacity ...
NUR202-ModuleB
... PAROXYSMAL ATRIAL TACHYCARDIA Caused by an irritable area of tissue in the atria that dominates the sinoatrial node and takes over as the pacemaker Usually preceded by premature atrial contractions Begin and end abruptly The raid rate prevents adequate ...
... PAROXYSMAL ATRIAL TACHYCARDIA Caused by an irritable area of tissue in the atria that dominates the sinoatrial node and takes over as the pacemaker Usually preceded by premature atrial contractions Begin and end abruptly The raid rate prevents adequate ...
Atrial Fibrillation: Upstream Therapies
... In a canine RVP model, AF duration increases compared to controls both before and following recovery of pacinginduced atrial electrical remodeling – Tissue fibrosis creates a substrate for increased arrhythmia persistence independent of action potential duration ...
... In a canine RVP model, AF duration increases compared to controls both before and following recovery of pacinginduced atrial electrical remodeling – Tissue fibrosis creates a substrate for increased arrhythmia persistence independent of action potential duration ...
Control of heart rate
... sinoatrial node (SAN), which can initiate an action potential to travel along the atrial walls as a wave of excitation, causing them to contract. This is where one heartbeat originates. The signal then spreads through the atrioventricular node (AVN) and down the Purkyne tissue to the ventricular ape ...
... sinoatrial node (SAN), which can initiate an action potential to travel along the atrial walls as a wave of excitation, causing them to contract. This is where one heartbeat originates. The signal then spreads through the atrioventricular node (AVN) and down the Purkyne tissue to the ventricular ape ...
Chronic Atrial Fibrillation - American Academy of Family Physicians
... In most cases of suspected atrial fibrillation, a 12-lead ECG is sufficient for diagnosis confirmation. However, if diagnostic uncertainty remains, such as in chronic permanent atrial fibrillation, the use of 24-hour (or even seven-day) Holter monitoring or an event recorder (e.g., Cardiomemo) may a ...
... In most cases of suspected atrial fibrillation, a 12-lead ECG is sufficient for diagnosis confirmation. However, if diagnostic uncertainty remains, such as in chronic permanent atrial fibrillation, the use of 24-hour (or even seven-day) Holter monitoring or an event recorder (e.g., Cardiomemo) may a ...
Editor – Dean F. Connors, MD, PhD
... once an atrial event has occurred (whether paced or native) the device will ensure that an atrial event follows. I - (inhibited): The device will pulse to the appropriate chamber unless it detects intrinsic electrical activity. In the DDI program, AV synchrony is provided only when the atrial chambe ...
... once an atrial event has occurred (whether paced or native) the device will ensure that an atrial event follows. I - (inhibited): The device will pulse to the appropriate chamber unless it detects intrinsic electrical activity. In the DDI program, AV synchrony is provided only when the atrial chambe ...
FOR APPROVAL ONLY, Draft No
... allow targeted cardiac rhythm-related problems to be quickly identified, quantified, and communicated to the prescribing physician. The physician selects patient-specific monitoring thresholds and response parameters. CardioNet’s MCOT system is comprised of a sensor, monitor, and base: Patients we ...
... allow targeted cardiac rhythm-related problems to be quickly identified, quantified, and communicated to the prescribing physician. The physician selects patient-specific monitoring thresholds and response parameters. CardioNet’s MCOT system is comprised of a sensor, monitor, and base: Patients we ...
Civic/Riverside Units - S. McCarter, September 2015
... ECG findings: peaked T waves (symmetrical), – P wave widens, PR segment lengthens P waves eventually disappear – QRS prolonged, sinus bradycardia, conduction blocks – Sine wave (LATE) ...
... ECG findings: peaked T waves (symmetrical), – P wave widens, PR segment lengthens P waves eventually disappear – QRS prolonged, sinus bradycardia, conduction blocks – Sine wave (LATE) ...
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.