Chapter 8 Cardiac Emergencies
... 3. Early defibrillation. (each minute defib is delayed reduces the victim’s chance of survival by ...
... 3. Early defibrillation. (each minute defib is delayed reduces the victim’s chance of survival by ...
Atrial Fibrillation in Dogs
... So, what is atrial fibrillation in dogs? Atrial fibrillation is a malfunction of the heart's electrical system. Instead of the electrical impulse originating from the SA node, the impulse originates from many different areas of the right atrium in an unorganized manner. This causes the atrial tissue ...
... So, what is atrial fibrillation in dogs? Atrial fibrillation is a malfunction of the heart's electrical system. Instead of the electrical impulse originating from the SA node, the impulse originates from many different areas of the right atrium in an unorganized manner. This causes the atrial tissue ...
Understanding cardiomyopathy
... restrictive filling, reduced diastolic volume with near normal systolic function. It may be idiopathic but is generally caused by another disease process, which leads to myocardial infiltration. Known causes include a build-up of protein in the heart muscle (amyloidosis), or excess iron in the blood ...
... restrictive filling, reduced diastolic volume with near normal systolic function. It may be idiopathic but is generally caused by another disease process, which leads to myocardial infiltration. Known causes include a build-up of protein in the heart muscle (amyloidosis), or excess iron in the blood ...
ANTIARRHYTHMIC DRUGS
... • Drugs in this class are blockers of voltage-operated fast Na+ channels in the myocardial membrane • They show (class IA & IB) preferential selectivity to Na+ channels in the open or inactivated closed states • Hence, they have better degree of blockade in tissues that are frequently depolarized or ...
... • Drugs in this class are blockers of voltage-operated fast Na+ channels in the myocardial membrane • They show (class IA & IB) preferential selectivity to Na+ channels in the open or inactivated closed states • Hence, they have better degree of blockade in tissues that are frequently depolarized or ...
biographical sketch - Cardiovascular Research Training Program
... sodium channel, ryanodine receptor, and cardiac arrhythmia (relevant to the current proposal). Cardiac voltage-gated Na+ channels determine the amplitude and slope of the action potential upstroke in atrial and ventricular cardiomyocytes and are responsible for the generation of the inward sodium cu ...
... sodium channel, ryanodine receptor, and cardiac arrhythmia (relevant to the current proposal). Cardiac voltage-gated Na+ channels determine the amplitude and slope of the action potential upstroke in atrial and ventricular cardiomyocytes and are responsible for the generation of the inward sodium cu ...
Cardiac Arrhythmias: The Quest for a Cure
... understanding of cardiac arrhythmias and their treatment. This was again demonstrated when Josephson et al. (24,25) showed in patients with ventricular tachycardias that accurate localization of the area of abnormal impulse formation could be followed by cure from the arrhythmia when the abnormal ar ...
... understanding of cardiac arrhythmias and their treatment. This was again demonstrated when Josephson et al. (24,25) showed in patients with ventricular tachycardias that accurate localization of the area of abnormal impulse formation could be followed by cure from the arrhythmia when the abnormal ar ...
What is Atrial Fibrillation?
... symptoms get worse. This could be a recent-onset atrial fibrillation (AF) - it has happened for the first time - or the patient may have had AF before. Acute-onset AF can occur in patients with either persistent or paroxysmal AF, and among those who are already undergoing AF treatment, as well as pa ...
... symptoms get worse. This could be a recent-onset atrial fibrillation (AF) - it has happened for the first time - or the patient may have had AF before. Acute-onset AF can occur in patients with either persistent or paroxysmal AF, and among those who are already undergoing AF treatment, as well as pa ...
clinical letter - Pocono Medical Center
... natural death from a cardiac cause within a short time period from the onset of symptoms" an “electrical accident of the heart”. SCA is responsible for 400,000 deaths a year in the U.S. Despite our growing knowledge about the mechanisms and markers of this disease, SCA remains di&cult to treat becau ...
... natural death from a cardiac cause within a short time period from the onset of symptoms" an “electrical accident of the heart”. SCA is responsible for 400,000 deaths a year in the U.S. Despite our growing knowledge about the mechanisms and markers of this disease, SCA remains di&cult to treat becau ...
2 - JACC: Cardiovascular Imaging
... controversy. Generally speaking, we believe that publishing only noncontroversial findings while withholding findings contradicting previous publications is a dangerous approach that risks endorsing and perpetuating what may at times be only partial truths. There are many claims in your letter that ...
... controversy. Generally speaking, we believe that publishing only noncontroversial findings while withholding findings contradicting previous publications is a dangerous approach that risks endorsing and perpetuating what may at times be only partial truths. There are many claims in your letter that ...
Ventricular Tachycardia (VT) and Sudden Cardiac Arrest (SCA)
... Epstein A, et al. ACC/AHA/HRS 2008 Guidelines for Device-Based Therapy of Cardiac Rhythm Abnormalities. J Am Coll Cardiol 2008; 51:e1–62. Table 5. ...
... Epstein A, et al. ACC/AHA/HRS 2008 Guidelines for Device-Based Therapy of Cardiac Rhythm Abnormalities. J Am Coll Cardiol 2008; 51:e1–62. Table 5. ...
Surgical Ventricular Restoration
... Surgical ventricular restoration (SVR) is a procedure designed to restore or remodel the left ventricle to its normal, spherical shape and size in patients with akinetic segments of the heart, secondary to either dilated cardiomyopathy or post-infarction left ventricular aneurysm. The SVR procedure ...
... Surgical ventricular restoration (SVR) is a procedure designed to restore or remodel the left ventricle to its normal, spherical shape and size in patients with akinetic segments of the heart, secondary to either dilated cardiomyopathy or post-infarction left ventricular aneurysm. The SVR procedure ...
Use of Alternating Current During Diagnostic
... tachycardias were elicited seven times; their earliest points of activation were in regions previously localized during preoperative laboratory studies using programmed electrical stimulation (fig. 2). Alternating current was first used in the operating room for a patient who had not responded to 30 ...
... tachycardias were elicited seven times; their earliest points of activation were in regions previously localized during preoperative laboratory studies using programmed electrical stimulation (fig. 2). Alternating current was first used in the operating room for a patient who had not responded to 30 ...
Advanced Heart Failure Therapies: Arrhythmia in End
... Reduction in a range of potassium currents, including ITO, IK1, and the delayed rectifier components Attributed to decreased ion channel gene transcription, contributes to action potential prolongation and disordered QT regulation Torsades de pointes–like mechanism might be linked to the problem o ...
... Reduction in a range of potassium currents, including ITO, IK1, and the delayed rectifier components Attributed to decreased ion channel gene transcription, contributes to action potential prolongation and disordered QT regulation Torsades de pointes–like mechanism might be linked to the problem o ...
Skill Lab #1: Abnormal ECG Interpretation and
... **Anti-coagulate in new-onset, significant risk for embolization. ...
... **Anti-coagulate in new-onset, significant risk for embolization. ...
Properties of cardiac muscle Properties of Cardiac Muscle
... (c) Second-degree heart block. Some P waves are not conducted through the AV node; hence more P than QRS waves are seen. In this tracing, the ratio of P waves to QRS waves is mostly 2:1. ...
... (c) Second-degree heart block. Some P waves are not conducted through the AV node; hence more P than QRS waves are seen. In this tracing, the ratio of P waves to QRS waves is mostly 2:1. ...
RATE VERSUS RHYTHM CONTROL OF ATRIAL FIBRILLATION
... • The myocardium experiences electrical and structural changes, such as increased fibrosis resulting in decreased ventricular compliance, as a direct consequence of aging. ...
... • The myocardium experiences electrical and structural changes, such as increased fibrosis resulting in decreased ventricular compliance, as a direct consequence of aging. ...
Cardiomyopathy - Lock Haven University
... Cardiomyopathy Craig Ernst MHS, PA-C Lock Haven University ...
... Cardiomyopathy Craig Ernst MHS, PA-C Lock Haven University ...
ECG based workshop: Faces of Atrial Fibrillation
... Association with exercise (sometimes delayed) History, Diary and Holter are the keys! ...
... Association with exercise (sometimes delayed) History, Diary and Holter are the keys! ...
DCM
... heart enlarges and the heart rate often increases Arrhytmias are common, most often dogs develop atrial fibrillation or ventricular premature complexes ...
... heart enlarges and the heart rate often increases Arrhytmias are common, most often dogs develop atrial fibrillation or ventricular premature complexes ...
(B). - OneDrive
... the brain. The second goal is restoration of circultion. In addition, the underlying condition must be corrected. • 1.CPCR is not indicated for all patients. Natural death in the aged or in the terminal stages of a chronic illness should not be reversed in this ...
... the brain. The second goal is restoration of circultion. In addition, the underlying condition must be corrected. • 1.CPCR is not indicated for all patients. Natural death in the aged or in the terminal stages of a chronic illness should not be reversed in this ...
Atrial fibrillation is a heart condition that causes an irregular and
... A normal heart rate should be between 60 and 100 beats a minute when you're resting, and is regular. You can measure your heart rate by feeling the pulse in your wrist or neck. In atrial fibrillation, the heart rate may be over 140 beats a minute, although it can be any speed. The main difference be ...
... A normal heart rate should be between 60 and 100 beats a minute when you're resting, and is regular. You can measure your heart rate by feeling the pulse in your wrist or neck. In atrial fibrillation, the heart rate may be over 140 beats a minute, although it can be any speed. The main difference be ...
Title Atypical case of post-partum cardiomyopathy: an overlap
... overlap syndrome of PPCM and ARVC. The basal septal thinning and transmural infarction of the apex (Figure 3) in the context of normal coronary arteries raised the possibility of arterial recanalization, an embolic episode, coronary spasm or even a process relating to cardiomyopathy itself.2 The pat ...
... overlap syndrome of PPCM and ARVC. The basal septal thinning and transmural infarction of the apex (Figure 3) in the context of normal coronary arteries raised the possibility of arterial recanalization, an embolic episode, coronary spasm or even a process relating to cardiomyopathy itself.2 The pat ...
Measuring left ventricular volume and ejection fraction - Heart
... (SD) baseline LVEF of 49 (8)% among those without subsequent improvement and 48 (7)% among those who improved. Baseline LVEF itself, however, does not appear to be a risk factor for subsequent cardiac events in post-AMI patients with LVEF > 40%.5 6 The study by Nijland and colleagues1 raises the int ...
... (SD) baseline LVEF of 49 (8)% among those without subsequent improvement and 48 (7)% among those who improved. Baseline LVEF itself, however, does not appear to be a risk factor for subsequent cardiac events in post-AMI patients with LVEF > 40%.5 6 The study by Nijland and colleagues1 raises the int ...
Print - Circulation
... animals and Wiggers and Wegria"4 were able to show this to be 27 msec before end of systole in the dog; a similar period of atrial vulnerability has also been demonstrated.'5 Nonuniform recovery from the refractory state occurs during the vulnerable period of the ventricle, and reentry of the depola ...
... animals and Wiggers and Wegria"4 were able to show this to be 27 msec before end of systole in the dog; a similar period of atrial vulnerability has also been demonstrated.'5 Nonuniform recovery from the refractory state occurs during the vulnerable period of the ventricle, and reentry of the depola ...
Documentation and Coding for Cardiac Conditions
... heart's muscle, valves or beating rhythm are also considered forms of heart disease. All types of heart disease share common traits, but they also have key differences. The goal of this article is to spend some time looking at documentation and diagnosis coding for conditions that fall under the car ...
... heart's muscle, valves or beating rhythm are also considered forms of heart disease. All types of heart disease share common traits, but they also have key differences. The goal of this article is to spend some time looking at documentation and diagnosis coding for conditions that fall under the car ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.