ECG for Interns
... ST elevation may indicate STEMI if the following are met: • At least 1 mm (0.1 mV) elevation in the limb leads (I, II, III, AVL, AVR) • At least 2 mm elevation in the precordial leads (V1-V6) • Elevation must be in at least 2 anatomically contiguous leads (see upcoming slides on “grouping leads”) ...
... ST elevation may indicate STEMI if the following are met: • At least 1 mm (0.1 mV) elevation in the limb leads (I, II, III, AVL, AVR) • At least 2 mm elevation in the precordial leads (V1-V6) • Elevation must be in at least 2 anatomically contiguous leads (see upcoming slides on “grouping leads”) ...
Preventing Stroke When You Have Atrial Fibrillation: A Guide
... With AFib, electrical signals in the heart can become fast and disorganized. They cause part of the heart to “fibrillate,” or in other words, to contract very quickly and at irregular intervals. These quick, irregular contractions don’t work well to push blood from one part of the heart to the other ...
... With AFib, electrical signals in the heart can become fast and disorganized. They cause part of the heart to “fibrillate,” or in other words, to contract very quickly and at irregular intervals. These quick, irregular contractions don’t work well to push blood from one part of the heart to the other ...
Heart Ch 18-PPT-STUDENT-2015
... Slow depolarization due to opening of Na+channels and closing of K+ channels. Membrane potential is never ...
... Slow depolarization due to opening of Na+channels and closing of K+ channels. Membrane potential is never ...
Title goes here (Arial Narrow 28 pt) second line
... ● Right bundle extends down right side of interventricular septum to base of anterior papillary muscle where it divides ● Left bundle usually divides into two or three distinct fibre tracts - a left posterior and a left anterior hemibundle ● Little autonomic innervation ● Extensive blood supply from ...
... ● Right bundle extends down right side of interventricular septum to base of anterior papillary muscle where it divides ● Left bundle usually divides into two or three distinct fibre tracts - a left posterior and a left anterior hemibundle ● Little autonomic innervation ● Extensive blood supply from ...
Untitled - Journal of Postgraduate Medical Institute
... for two- dimensional transthoracic echocardiogram (TTE) for various indications. A total 373 patients underwent echocardiography during the study period. Patients of age 18 years or above from both genders who were having normal systolic function on TTE were included from the study. Patients with ar ...
... for two- dimensional transthoracic echocardiogram (TTE) for various indications. A total 373 patients underwent echocardiography during the study period. Patients of age 18 years or above from both genders who were having normal systolic function on TTE were included from the study. Patients with ar ...
Special Article Spontaneous Conversion to Sinus Rhythm of Recent
... Objectives. The purpose of the study was to determine the likelihood of spontaneous conversion of recent onset（＜ 24 hr） paroxysmal atrial fibrillation（Af）to sinus rhythm and to define clinical and echocardiographic characteristics which may predict it. Methods. One hundred fifty-three consecutive ad ...
... Objectives. The purpose of the study was to determine the likelihood of spontaneous conversion of recent onset（＜ 24 hr） paroxysmal atrial fibrillation（Af）to sinus rhythm and to define clinical and echocardiographic characteristics which may predict it. Methods. One hundred fifty-three consecutive ad ...
1. CS .Note the characteristic ECG sign of sinus bradycardia A . PQ
... D. pause duration corresponding to 2,3 or more PP normal intervals E. pause is preceded by progressive decrease in PP intervals 56. CM. Classic version of Morgan - Adams - Stocks syndrome included: A. hypertension B. sudden onset C. syncope with pronounced pale skin D. reactive hyperemia after exit ...
... D. pause duration corresponding to 2,3 or more PP normal intervals E. pause is preceded by progressive decrease in PP intervals 56. CM. Classic version of Morgan - Adams - Stocks syndrome included: A. hypertension B. sudden onset C. syncope with pronounced pale skin D. reactive hyperemia after exit ...
CVT 2500C - Florida State College at Jacksonville
... CATALOG COURSE DESCRIPTION : This course relates electrophysiological principles of the EKG components to heart function. Students identify the individual components of the EKG complex and discuss the best lead placement for a diagnostic EKG versus lead placement for intra-procedural monitoring. Aft ...
... CATALOG COURSE DESCRIPTION : This course relates electrophysiological principles of the EKG components to heart function. Students identify the individual components of the EKG complex and discuss the best lead placement for a diagnostic EKG versus lead placement for intra-procedural monitoring. Aft ...
1. CS .Note the characteristic ECG sign of sinus bradycardia A . PQ
... D. pause duration corresponding to 2,3 or more PP normal intervals E. pause is preceded by progressive decrease in PP intervals 56. CM. Classic version of Morgan - Adams - Stocks syndrome included: A. hypertension B. sudden onset C. syncope with pronounced pale skin D. reactive hyperemia after exit ...
... D. pause duration corresponding to 2,3 or more PP normal intervals E. pause is preceded by progressive decrease in PP intervals 56. CM. Classic version of Morgan - Adams - Stocks syndrome included: A. hypertension B. sudden onset C. syncope with pronounced pale skin D. reactive hyperemia after exit ...
Associations Between Cardiac Fibrosis and
... The study group consisted of 21 male patients (age 51.6±8.9 y; long-standing AF in 10 patients; sinus rhythm in 11 patients) with advanced HF who underwent heart transplantation at Institute for Clinical and Experimental Medicine (IKEM) in Prague. The underlying etiology of HF was coronary artery di ...
... The study group consisted of 21 male patients (age 51.6±8.9 y; long-standing AF in 10 patients; sinus rhythm in 11 patients) with advanced HF who underwent heart transplantation at Institute for Clinical and Experimental Medicine (IKEM) in Prague. The underlying etiology of HF was coronary artery di ...
Atrial fibrillation anticoagulation care in a large urban family
... AF by almost two-thirds.4,5 However, systematic reviews have found that of all patients at high risk of stroke due to AF, only 51% receive any anticoagulation, and of these patients, their international normalized ratios (INRs) are within the target range only half the time.6,7 Guidelines recommend ...
... AF by almost two-thirds.4,5 However, systematic reviews have found that of all patients at high risk of stroke due to AF, only 51% receive any anticoagulation, and of these patients, their international normalized ratios (INRs) are within the target range only half the time.6,7 Guidelines recommend ...
The Treatment of Atrial Fibrillation
... instructed on how to inject themselves with the tiny needle that is used to deliver the heparin under the skin. Because the ablation procedure itself may temporarily irritate the heart and cause atrial fibrillation, patients often are treated with a medication to suppress atrial fibrillation for 2-3 ...
... instructed on how to inject themselves with the tiny needle that is used to deliver the heparin under the skin. Because the ablation procedure itself may temporarily irritate the heart and cause atrial fibrillation, patients often are treated with a medication to suppress atrial fibrillation for 2-3 ...
Pacemaker Leads - The American Association for the Surgery of
... – PVARP: Post Ventricular Atrial Refractory Period • Time after ventricular sensing/pacing when atrial events are ignored ...
... – PVARP: Post Ventricular Atrial Refractory Period • Time after ventricular sensing/pacing when atrial events are ignored ...
The Apical First Heart Sound as an Aid in the Diagnosis
... typical phonocardiographic picture of atrial septal defect with large left-to-right shunt but have also noted it in three cases in whom the other phonocardiographic and clinical characteristics of atrial septal defect were not clearly present. On right heart catheterization, these latter three cases ...
... typical phonocardiographic picture of atrial septal defect with large left-to-right shunt but have also noted it in three cases in whom the other phonocardiographic and clinical characteristics of atrial septal defect were not clearly present. On right heart catheterization, these latter three cases ...
Understanding Heart Rhythm Disorders
... originates from the atria, the top heart chambers. A-fib is the most common heart rhythm problem, affecting 2.2 million Americans. The atria’s rapid rate causes the bottom chambers of the heart, the ventricles, to also beat rapidly and irregularly. • Atrial arrhythmia, resulting in a heartbeat that ...
... originates from the atria, the top heart chambers. A-fib is the most common heart rhythm problem, affecting 2.2 million Americans. The atria’s rapid rate causes the bottom chambers of the heart, the ventricles, to also beat rapidly and irregularly. • Atrial arrhythmia, resulting in a heartbeat that ...
Assessment of Diastolic Function in Heart Failure and Atrial Fibrillation
... [27] found that a cut-off value of E/Vp of 1.7 was able to predict with acceptable accuracy the presence of high PCWP (> 15 mmHg) in HF patients with AF. Tissue Doppler imaging has recently become a common tool of modern ultrasound systems. This allows the recording of myocardial contraction and rel ...
... [27] found that a cut-off value of E/Vp of 1.7 was able to predict with acceptable accuracy the presence of high PCWP (> 15 mmHg) in HF patients with AF. Tissue Doppler imaging has recently become a common tool of modern ultrasound systems. This allows the recording of myocardial contraction and rel ...
Goldman MJ (1986): Principles of Clinical Electrocardiography, 12th
... Sinus arrhythmia If the sinus rhythm is irregular such that the longest PP- or RR-interval exceeds the shortest interval by 0.16 s, the situation is called sinus arrhythmia. This situation is very common in all age groups. This arrhythmia is so common in young people that it is not considered a hear ...
... Sinus arrhythmia If the sinus rhythm is irregular such that the longest PP- or RR-interval exceeds the shortest interval by 0.16 s, the situation is called sinus arrhythmia. This situation is very common in all age groups. This arrhythmia is so common in young people that it is not considered a hear ...
Unit One: Introduction to Physiology: The Cell and General Physiology
... a. Relationship of atrial and ventricular contraction to the waves of the EEG b. Voltage and time calibration of the EEG c. Normal voltages in P-Q or P-R interval d. Normal voltages in the Q-T interval e. Rate of Heartbeat ...
... a. Relationship of atrial and ventricular contraction to the waves of the EEG b. Voltage and time calibration of the EEG c. Normal voltages in P-Q or P-R interval d. Normal voltages in the Q-T interval e. Rate of Heartbeat ...
How to tell heart rate from an ECG?
... What extra information does the ECG provide that one cannot readily obtain by palpating arterial pulse or auscultating the heart? 1. Assessing cardiac rhythm & quantifying arrhythmia 2. Determining the origin of each impulse (the pacemaker for each beat) ...
... What extra information does the ECG provide that one cannot readily obtain by palpating arterial pulse or auscultating the heart? 1. Assessing cardiac rhythm & quantifying arrhythmia 2. Determining the origin of each impulse (the pacemaker for each beat) ...
Atrial fibrillation and outcomes in heart failure with preserved versus
... mellitus and cancer registries.18 We defined prevalent HF as any hospitalization or ambulatory HF diagnosis before the index date. We collected baseline and follow-up data on diagnoses of coronary artery disease, acute myocardial infarction, coronary artery revascularization, stroke and transient isc ...
... mellitus and cancer registries.18 We defined prevalent HF as any hospitalization or ambulatory HF diagnosis before the index date. We collected baseline and follow-up data on diagnoses of coronary artery disease, acute myocardial infarction, coronary artery revascularization, stroke and transient isc ...
Conductive System Of Heart
... • Due to the slow conduction in AV node there is a delay of 0.09 sec in the AV node, before the impulse reaches the penetrating portion of AV bundle. • There is a delay of 0.04 sec in the penetrating portion of AV bundle. • There is a total delay of 0.13 sec in the AV node and AV bundle system. • Th ...
... • Due to the slow conduction in AV node there is a delay of 0.09 sec in the AV node, before the impulse reaches the penetrating portion of AV bundle. • There is a delay of 0.04 sec in the penetrating portion of AV bundle. • There is a total delay of 0.13 sec in the AV node and AV bundle system. • Th ...
Atrial Septal Defects in Adults
... septum secundum covering the ostium secundum orfice. In 70% of the population, these septa fuse. A patent foramen ovale exists if the space is covered but the septa are not fused. An ASD exists when an open communication exists between atria. A large ASD can cause extra blood to accumulate in the ri ...
... septum secundum covering the ostium secundum orfice. In 70% of the population, these septa fuse. A patent foramen ovale exists if the space is covered but the septa are not fused. An ASD exists when an open communication exists between atria. A large ASD can cause extra blood to accumulate in the ri ...
Effect of 5-fluorouracil on sinoatrial node and conduction system of
... age and sex. Patients were excluded if they had baseline electrocardiogram (ECG) abnormalities as defined in Minnesota code, concomitant use of other cardiotoxic drugs particularly anthracycaline antibiotics, known case of structural heart disease, cardiac muscle disease or has an implanted cardiac ...
... age and sex. Patients were excluded if they had baseline electrocardiogram (ECG) abnormalities as defined in Minnesota code, concomitant use of other cardiotoxic drugs particularly anthracycaline antibiotics, known case of structural heart disease, cardiac muscle disease or has an implanted cardiac ...
Atrial Fibrillation: New Horizons
... Atrial fibrillation (AF) is the most common cardiac arrhythmia seen in clinical practice. The understanding of the pathophysiology of AF has changed drastically during the last several decades. Recent observations have challenged the concept of the multiple circuit reentry model in favor of single f ...
... Atrial fibrillation (AF) is the most common cardiac arrhythmia seen in clinical practice. The understanding of the pathophysiology of AF has changed drastically during the last several decades. Recent observations have challenged the concept of the multiple circuit reentry model in favor of single f ...
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.