![Adenosine-Provoked Atrial Fibrillation Originating From€Non](http://s1.studyres.com/store/data/007264603_1-ddbfd418dd1b905fb4347318dad406c6-300x300.png)
Adenosine-Provoked Atrial Fibrillation Originating From€Non
... BACKGROUND ATP is reported to provoke AF. METHODS A total of 464 patients with consecutive paroxysmal AF undergoing ATP testing after PV antrum isolation were included. RESULTS AF originating from non-PV foci was provoked in 26 (5.6%) total patients during first (n ¼ 20) or repeat (n ¼ 8) ablation pr ...
... BACKGROUND ATP is reported to provoke AF. METHODS A total of 464 patients with consecutive paroxysmal AF undergoing ATP testing after PV antrum isolation were included. RESULTS AF originating from non-PV foci was provoked in 26 (5.6%) total patients during first (n ¼ 20) or repeat (n ¼ 8) ablation pr ...
Case Report Leiomyosarcoma of Pulmonary Vein Presenting as Left
... surgery [1]. Up to 60% of cases have metastasis at the time of diagnosis and microembolisation is common [2]. Metastasis has been described as a natural course of leiomyosarcoma even after radical surgical excision and the average time to local recurrence is about 6 months [3]. Clinical presentation ...
... surgery [1]. Up to 60% of cases have metastasis at the time of diagnosis and microembolisation is common [2]. Metastasis has been described as a natural course of leiomyosarcoma even after radical surgical excision and the average time to local recurrence is about 6 months [3]. Clinical presentation ...
Diastolic Heart Failure - STA HealthCare Communications
... or near-normal systolic function. Ms. P.L. has a few elements that may suggest diastolic dysfunction: long-standing hypertension in an elderly woman, a sustained apical impulse of normal size, an S4, LVH on the ECG and an X-ray showing signs of heart failure with a normal cardiac silhouette. An echo ...
... or near-normal systolic function. Ms. P.L. has a few elements that may suggest diastolic dysfunction: long-standing hypertension in an elderly woman, a sustained apical impulse of normal size, an S4, LVH on the ECG and an X-ray showing signs of heart failure with a normal cardiac silhouette. An echo ...
AN ANALYSIS OF THE TOXIC ACTIONS OF PURIFIED STREP
... tude before the long-term effect became dominant (Fig. 1 D). This biphasic nature of the response is illustrated graphically in Fig. 2, which describes the responses of three hearts to different doses of toxin. These mechanical changes were accompanied by marked alterations in the rate of cardiac pe ...
... tude before the long-term effect became dominant (Fig. 1 D). This biphasic nature of the response is illustrated graphically in Fig. 2, which describes the responses of three hearts to different doses of toxin. These mechanical changes were accompanied by marked alterations in the rate of cardiac pe ...
Ablation vs. drug use for atrial fibrillation
... structural heart disease. Catheter ablation is recognized in the latest ACC/AHA/ESC guidelines as a valid second-line option in patients who have failed or were intolerant of first-line antiarrhythmic therapy. In the absence of new antiarrhythmics with an improved benefit/risk profile, it could become ...
... structural heart disease. Catheter ablation is recognized in the latest ACC/AHA/ESC guidelines as a valid second-line option in patients who have failed or were intolerant of first-line antiarrhythmic therapy. In the absence of new antiarrhythmics with an improved benefit/risk profile, it could become ...
Changes in Ion Channel Gene Expression Underlying Heart Failure
... IP and xylazine 5 mg/kg body weight IP. They underwent echocardiography (MyLab25; Esaote, Italy) with a 13-MHz linear array transducer. Briefly, left ventricular (LV) end-diastolic and end-systolic areas were measured with a planimeter from the parasternal long-axis view. LV ejection fraction was ca ...
... IP and xylazine 5 mg/kg body weight IP. They underwent echocardiography (MyLab25; Esaote, Italy) with a 13-MHz linear array transducer. Briefly, left ventricular (LV) end-diastolic and end-systolic areas were measured with a planimeter from the parasternal long-axis view. LV ejection fraction was ca ...
Fibrosis: a structural modulator of sinoatrial node physiology and
... several extensions into the surrounding atrial myocardium, forming the specialized sinoatrial conduction pathways (SACPs) (Lev, 1954; Hudson, 1960; Demoulin and Kulbertus, 1978; Fedorov et al., 2010b) (Figure 1A). Importantly, the SAN consists of small clusters of pacemaker myocytes, arranged in par ...
... several extensions into the surrounding atrial myocardium, forming the specialized sinoatrial conduction pathways (SACPs) (Lev, 1954; Hudson, 1960; Demoulin and Kulbertus, 1978; Fedorov et al., 2010b) (Figure 1A). Importantly, the SAN consists of small clusters of pacemaker myocytes, arranged in par ...
Ottawa Heart Conferences 2016 - University of Ottawa Heart Institute
... practice landscape, we have partnered three major cardiovascular conferences this year. We are delighted that the joint steering committee has put together a superb program and welcome you to join us at the Shaw Centre Ottawa. On June 2nd and 3rd, the 4th Annual Ottawa Heart Research Conference will ...
... practice landscape, we have partnered three major cardiovascular conferences this year. We are delighted that the joint steering committee has put together a superb program and welcome you to join us at the Shaw Centre Ottawa. On June 2nd and 3rd, the 4th Annual Ottawa Heart Research Conference will ...
Depolarization and Repolarization
... of >1mm and longer than 80 milliseconds following the Jpoint. This measure has a false positive rate of 15-20% (which is slightly higher in women than men) and a false negative rate of 20-30%. • ST depression may be associated with hypokalemia or digitalis toxicity. ...
... of >1mm and longer than 80 milliseconds following the Jpoint. This measure has a false positive rate of 15-20% (which is slightly higher in women than men) and a false negative rate of 20-30%. • ST depression may be associated with hypokalemia or digitalis toxicity. ...
EVENTS (PROGRAM 80812) - Texas Tech University Health
... The following manuscript is a word-for-word transcription of the course audio files. This is not intended to represent an edited publication document and may not contain critical information contained in graphics and other visual aids utilized by the course speaker. This document is provided solely ...
... The following manuscript is a word-for-word transcription of the course audio files. This is not intended to represent an edited publication document and may not contain critical information contained in graphics and other visual aids utilized by the course speaker. This document is provided solely ...
Clinical events leading to the progression of heart failure: insights
... readmissions leading to an exacerbation of heart failure were identified from previous publications[17,18,28–31]. Atrial fibrillation/paroxysmal supraventrcular tachycardia, acute stroke, acute ischaemic event, acute myocardial infarction, hypertensive heart disease, renal failure or acute respirato ...
... readmissions leading to an exacerbation of heart failure were identified from previous publications[17,18,28–31]. Atrial fibrillation/paroxysmal supraventrcular tachycardia, acute stroke, acute ischaemic event, acute myocardial infarction, hypertensive heart disease, renal failure or acute respirato ...
Pacing Artifact May Masquerade as Capture
... monitored. Heart rate detectors, if active during pacing, may not accurately count intrinsic QRS complexes or pacemaker generated complexes. The heart rate detector may incorrectly identify artifact as QRS complexes leading to false high readings. Also, intrinsic complexes which fall within the pace ...
... monitored. Heart rate detectors, if active during pacing, may not accurately count intrinsic QRS complexes or pacemaker generated complexes. The heart rate detector may incorrectly identify artifact as QRS complexes leading to false high readings. Also, intrinsic complexes which fall within the pace ...
Electrocardiographic Manifestations of Hypothermia
... Hypothermia is generally defined as a core body temperature less than 35°C (95°F). Hypothermia is one of the most common environmental emergencies encountered by emergency physicians. This condition is found in varied geographic regions and during all seasons.1-3 Although cold exposure is likely the ...
... Hypothermia is generally defined as a core body temperature less than 35°C (95°F). Hypothermia is one of the most common environmental emergencies encountered by emergency physicians. This condition is found in varied geographic regions and during all seasons.1-3 Although cold exposure is likely the ...
Ventricular Tachycardia Rate and Morphology Determine Energy
... those of atrial tachyarrhythmias: Atrial flutter, a more organized arrhythmia than atrial fibrillation, terminates with lower electrical doses than does atrial fibrillation.6 Why might this be the case? The current and energy differences noted for arrhythmia termination between rapid and disorganize ...
... those of atrial tachyarrhythmias: Atrial flutter, a more organized arrhythmia than atrial fibrillation, terminates with lower electrical doses than does atrial fibrillation.6 Why might this be the case? The current and energy differences noted for arrhythmia termination between rapid and disorganize ...
Print - Circulation
... time of the intraoperative study, two of the patients had been receiving digoxin and two had been receiving propranolol. During induction and/or maintenance of anesthesia, three patients received scopolamine (0.4-0.5 mg) and all patients received diazepam, morphine, nitrous oxide, halothane, fentany ...
... time of the intraoperative study, two of the patients had been receiving digoxin and two had been receiving propranolol. During induction and/or maintenance of anesthesia, three patients received scopolamine (0.4-0.5 mg) and all patients received diazepam, morphine, nitrous oxide, halothane, fentany ...
Effects of Verapamil, Zatebradine, and E
... Verapamil shifted back the EAR in the superior pacemaker region induced by sympathetic stimulation to the SA node pacemaker region when the dose of verapamil was increased, as shown in Fig. 6A–D. The mean activation times induced by sympathetic stimulation at the eight selected electrodes were chang ...
... Verapamil shifted back the EAR in the superior pacemaker region induced by sympathetic stimulation to the SA node pacemaker region when the dose of verapamil was increased, as shown in Fig. 6A–D. The mean activation times induced by sympathetic stimulation at the eight selected electrodes were chang ...
Effects of Physiologic Pacing versus Ventricular Pacing on the Risk
... any outcome events was determined. The primary outcome event in the study was the occurrence of either stroke or death due to cardiovascular causes. Death due to cardiovascular causes was defined as any death that did not have a clear noncardiovascular cause, such as trauma, cancer, infection, or re ...
... any outcome events was determined. The primary outcome event in the study was the occurrence of either stroke or death due to cardiovascular causes. Death due to cardiovascular causes was defined as any death that did not have a clear noncardiovascular cause, such as trauma, cancer, infection, or re ...
Week 5 – Electrocardiography and Blood pressure Objectives
... The heart is a pump that pushes blood around the body. Blood enters the heart at a low pressure and leaves at a higher pressure, and this high pressure provides the force to propel the blood through the circulatory system. Blood returning from the body is sent to the right side of the heart and then ...
... The heart is a pump that pushes blood around the body. Blood enters the heart at a low pressure and leaves at a higher pressure, and this high pressure provides the force to propel the blood through the circulatory system. Blood returning from the body is sent to the right side of the heart and then ...
Week 5 – Electrocardiography and Blood pressure Objectives
... The heart is a pump that pushes blood around the body. Blood enters the heart at a low pressure and leaves at a higher pressure, and this high pressure provides the force to propel the blood through the circulatory system. Blood returning from the body is sent to the right side of the heart and then ...
... The heart is a pump that pushes blood around the body. Blood enters the heart at a low pressure and leaves at a higher pressure, and this high pressure provides the force to propel the blood through the circulatory system. Blood returning from the body is sent to the right side of the heart and then ...
BELAJAR EKG YUK Kebanyakan para perawat kita ahli dalam
... beats per minute. A QRS follows every P wave or 2-to-1 block may occur. The P wave may be superimposed on the T wave and be difficult to identify. Atrial tachycardia can be difficult to distinguish from sinus tachycardia. Heart rate greater than 150 beats per minute and an abnormal P wave favor atri ...
... beats per minute. A QRS follows every P wave or 2-to-1 block may occur. The P wave may be superimposed on the T wave and be difficult to identify. Atrial tachycardia can be difficult to distinguish from sinus tachycardia. Heart rate greater than 150 beats per minute and an abnormal P wave favor atri ...
Basics of EKG Interpretation:
... Secondary ST-T Wave Changes: Secondary means there is an explainable cause. Secondary ischemia causes S-T depression; associated with increased oxygen demand with limited blood flow; usually due to subendocardial ischemia as the endocardium is at the tail end of the blood supply. ECG changes are mor ...
... Secondary ST-T Wave Changes: Secondary means there is an explainable cause. Secondary ischemia causes S-T depression; associated with increased oxygen demand with limited blood flow; usually due to subendocardial ischemia as the endocardium is at the tail end of the blood supply. ECG changes are mor ...
Basics of EKG Interpretation
... Secondary ST-T Wave Changes: Secondary means there is an explainable cause. Secondary ischemia causes S-T depression; associated with increased oxygen demand with limited blood flow; usually due to subendocardial ischemia as the endocardium is at the tail end of the blood supply. ECG changes are mor ...
... Secondary ST-T Wave Changes: Secondary means there is an explainable cause. Secondary ischemia causes S-T depression; associated with increased oxygen demand with limited blood flow; usually due to subendocardial ischemia as the endocardium is at the tail end of the blood supply. ECG changes are mor ...
Regulation of Ventricular Contraction
... ganglion placed in a bipolar electrode. Less frequently, a unipolar Kubicek electrode8 was applied to the common ansa subclavia. Vagal stimulation, when used, was applied to the distal cut end of either vagus nerve by means of a bipolar electrode. The impulse duration used in stimulating the stellat ...
... ganglion placed in a bipolar electrode. Less frequently, a unipolar Kubicek electrode8 was applied to the common ansa subclavia. Vagal stimulation, when used, was applied to the distal cut end of either vagus nerve by means of a bipolar electrode. The impulse duration used in stimulating the stellat ...
AFA Ablation for AF Booklet.indd
... Before the procedure, information will have been given to you about which of your medications to take and which to avoid, plus how long you need to fast for (avoiding anything to eat or drink) prior to admission. You must follow these instructions carefully as it may be necessary to cancel your oper ...
... Before the procedure, information will have been given to you about which of your medications to take and which to avoid, plus how long you need to fast for (avoiding anything to eat or drink) prior to admission. You must follow these instructions carefully as it may be necessary to cancel your oper ...
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.