Nonsustained ventricular tachycardia
... Introduction Nonsustained ventricular tachycardia (NSVT) is one of the most common problems encountered in modern clinical cardiology. The term, defined as 3 or more consecutive beats arising below the atrioventricular node with a rate >120 beats/min and lasting less than 30 s,1–3 denotes an electro ...
... Introduction Nonsustained ventricular tachycardia (NSVT) is one of the most common problems encountered in modern clinical cardiology. The term, defined as 3 or more consecutive beats arising below the atrioventricular node with a rate >120 beats/min and lasting less than 30 s,1–3 denotes an electro ...
i. basic principles of cardiac conduction
... the preceding RR interval. 4. T wave = ventricular repolarization a. Upright in leads I, II, V3–V6; inverted in aVR b. Slightly rounded and asymmetric in configuration c. Measures ≤5 mm high in limb leads and ≤10 mm high in the chest leads 5. U wave = a ventricular afterpotential a. Any deflec ...
... the preceding RR interval. 4. T wave = ventricular repolarization a. Upright in leads I, II, V3–V6; inverted in aVR b. Slightly rounded and asymmetric in configuration c. Measures ≤5 mm high in limb leads and ≤10 mm high in the chest leads 5. U wave = a ventricular afterpotential a. Any deflec ...
Cardiac Resynchronisation Therapy in Patients with NYHA Class I-II
... Background Chronic heart failure (HF) due to systolic dysfunction is a major health problem, and there is an increasing prevalence as a result of better survival after acute myocardial infarction, improved diagnostic methods, and aging of the population. In the USA, there are approximately five mill ...
... Background Chronic heart failure (HF) due to systolic dysfunction is a major health problem, and there is an increasing prevalence as a result of better survival after acute myocardial infarction, improved diagnostic methods, and aging of the population. In the USA, there are approximately five mill ...
Relation Between Left Ventricular Diastolic Pressure and Myocardial
... Spontaneous atrial tachycardia in dog irith surgically induced heart block. Ventricular rate of •iO/min; atrial rate = 420/min; Symbols as in previous figures. ...
... Spontaneous atrial tachycardia in dog irith surgically induced heart block. Ventricular rate of •iO/min; atrial rate = 420/min; Symbols as in previous figures. ...
New-born Babies with Abnormal Heart Rhythm CA6034 v1.1
... per minute. These are most commonly narrow complex supraventricular tachycardia but also ventricular tachycardia, long QT syndrome, ventricular fibrillation and sinoatrial node dysfunction (4). Bradyarrhythmias - where heart rate is usually less than 100 beats per minute ...
... per minute. These are most commonly narrow complex supraventricular tachycardia but also ventricular tachycardia, long QT syndrome, ventricular fibrillation and sinoatrial node dysfunction (4). Bradyarrhythmias - where heart rate is usually less than 100 beats per minute ...
Prophylactic Magnesium and Rhythm Disorders after Open Cardiac
... which stabilizes cell membrane function. It is secreted in urine in high amounts when there is elevation of adrenal hormones secondary to stress. This leads to decrease in Mg concentration in blood thus inducing stress at cell membrane level “magnesium vicious circle” that may lead to severe complic ...
... which stabilizes cell membrane function. It is secreted in urine in high amounts when there is elevation of adrenal hormones secondary to stress. This leads to decrease in Mg concentration in blood thus inducing stress at cell membrane level “magnesium vicious circle” that may lead to severe complic ...
(aed) devices and cardiopulmonary resuscitation (cpr)
... system which includes but is not limited to athletic events, booster clubs, parentteacher organizations, or any activity designed to enhance the school curriculum whether on school-campus or not. ...
... system which includes but is not limited to athletic events, booster clubs, parentteacher organizations, or any activity designed to enhance the school curriculum whether on school-campus or not. ...
Dynamic Left Ventricular Outflow Tract Obstruction with Cardiogenic
... gradually improved. About 20 hours later, we repeated a detailed echocardiography for the patient. It revealed ...
... gradually improved. About 20 hours later, we repeated a detailed echocardiography for the patient. It revealed ...
Current Status of the Treatment of Complete Heart Block
... two months following a four week period of apparent recovery. The cause of death in each of these patients cannot be said to be due to their complete heart block nor directly to the temporary pacing, but rather to the -uavitv . of the primarv and concurrent disease. The pacing electrode was removed ...
... two months following a four week period of apparent recovery. The cause of death in each of these patients cannot be said to be due to their complete heart block nor directly to the temporary pacing, but rather to the -uavitv . of the primarv and concurrent disease. The pacing electrode was removed ...
Print - Circulation
... wires attached to the right atrium. Before the first defibrillation attempt, atrial fibrillation was permitted to sustain for 5 minutes to demonstrate adequate stability. If atrial fibrillation spontaneously terminated in less than 5 minutes, t3-methacholine, 50 ,ug/250 mL normal saline, was applied ...
... wires attached to the right atrium. Before the first defibrillation attempt, atrial fibrillation was permitted to sustain for 5 minutes to demonstrate adequate stability. If atrial fibrillation spontaneously terminated in less than 5 minutes, t3-methacholine, 50 ,ug/250 mL normal saline, was applied ...
Derived copy of Cardiac Cycle
... the chordae tendineae. S3 may be heard in youth, some athletes, and pregnant women. If the sound is heard later in life, it may indicate congestive heart failure, warranting further tests. Some cardiologists refer to the collective S1 , S2 , and S3 sounds as the Kentucky gallop, because they mimic ...
... the chordae tendineae. S3 may be heard in youth, some athletes, and pregnant women. If the sound is heard later in life, it may indicate congestive heart failure, warranting further tests. Some cardiologists refer to the collective S1 , S2 , and S3 sounds as the Kentucky gallop, because they mimic ...
CCS Focused Update on Atrial Fibrillation New Guidelines for 2016
... Intermediate Risk of Bleeding ...
... Intermediate Risk of Bleeding ...
and Cavity Size: An Analysis of 1500 Human Hearts
... chronic lung disease with large right ventricles and relatively small left ventricles, but there were not enough patients to alter the relationship. Because the noninfarction group also included patients who died of cancer rather than coronary disease there was a relatively greater number of small h ...
... chronic lung disease with large right ventricles and relatively small left ventricles, but there were not enough patients to alter the relationship. Because the noninfarction group also included patients who died of cancer rather than coronary disease there was a relatively greater number of small h ...
Relative Dipolar Behavior of the Equivalent T Wave Generator
... periods are superposed on each other in panels A and B, respectively, of Figure 1. The lower portions of this figure show the geometric (sum-squared) mean nondipolar behavior of the group, together with the plus-minus 35% range during ventricular depolarization (panel C) and repolarization (panel D) ...
... periods are superposed on each other in panels A and B, respectively, of Figure 1. The lower portions of this figure show the geometric (sum-squared) mean nondipolar behavior of the group, together with the plus-minus 35% range during ventricular depolarization (panel C) and repolarization (panel D) ...
see Section 2.1 - Doncaster and Bassetlaw Hospitals NHS
... Digoxin is indicated for the control of ventricular rate (>100 beats per minute) in patients with atrial fibrillation and in the treatment of supraventricular tachycardia and atrial flutter. Place in therapy for atrial fibrillation and chronic heart failure has been assessed in NICE clinical guideli ...
... Digoxin is indicated for the control of ventricular rate (>100 beats per minute) in patients with atrial fibrillation and in the treatment of supraventricular tachycardia and atrial flutter. Place in therapy for atrial fibrillation and chronic heart failure has been assessed in NICE clinical guideli ...
Reference values for quantitative left ventricular and left atrial
... Reasons for referral were atypical chest pain with negative ECG negative and biomarkers on admission in all individuals. The medical history was available in all subjects and included information about cardiovascular risk factors such as a positive family history, hyperlipidemia, diabetes mellitus, ...
... Reasons for referral were atypical chest pain with negative ECG negative and biomarkers on admission in all individuals. The medical history was available in all subjects and included information about cardiovascular risk factors such as a positive family history, hyperlipidemia, diabetes mellitus, ...
An unusual case of a bicuspid aortic valve and non compaction of
... who presented to our emergency room (ER) with complaints of a sudden pounding of his chest, severe left shoulder pain, shortness of breath, dizziness and diaphoresis which started shortly after walking. Emergency medical services was called and on arrival found the patient in sustained VT at rate of ...
... who presented to our emergency room (ER) with complaints of a sudden pounding of his chest, severe left shoulder pain, shortness of breath, dizziness and diaphoresis which started shortly after walking. Emergency medical services was called and on arrival found the patient in sustained VT at rate of ...
Cardiac Arrhythmias in the Intensive Care Unit
... (WPW). One should try not to rely solely on a rhythm strip from one monitor lead for diagnosis; there can be variability in QRS width depending on which lead is examined. A 12-lead electrocardiogram (ECG) is more useful. Also, scrutiny of a previous ECG is often useful; for example, to identify pree ...
... (WPW). One should try not to rely solely on a rhythm strip from one monitor lead for diagnosis; there can be variability in QRS width depending on which lead is examined. A 12-lead electrocardiogram (ECG) is more useful. Also, scrutiny of a previous ECG is often useful; for example, to identify pree ...
The use of isovolumic contraction velocity to determine right
... correlate to increased right ventricular end diastolic pressure.6,7 Recently, Vogel et al.8 demonstrated by using Doppler tissue imaging, that acceleration of isovolumic contraction velocity is a reliable measurement of right ventricular contractility. Furthermore, this parameter is not affected by ...
... correlate to increased right ventricular end diastolic pressure.6,7 Recently, Vogel et al.8 demonstrated by using Doppler tissue imaging, that acceleration of isovolumic contraction velocity is a reliable measurement of right ventricular contractility. Furthermore, this parameter is not affected by ...
Ventricular Tachycardia Rate and Morphology Determine Energy
... Background. The electrical current and energy required to terminate ventricular tachyarrhythmias are known to vary by arrhythmia: Ventricular tachycardia (VT) is generally considered to require less energy than ventricular fibrillation (VF). The hypothesis of our study was that current requirements ...
... Background. The electrical current and energy required to terminate ventricular tachyarrhythmias are known to vary by arrhythmia: Ventricular tachycardia (VT) is generally considered to require less energy than ventricular fibrillation (VF). The hypothesis of our study was that current requirements ...
Defibrillation
... The patient's cardiac status, breathing, and vital signs are monitored until he or she is stable. An electrocardiogram and chest x ray are taken. The patient's skin is cleansed to remove gel or paste, and, if necessary, ointment is applied to ...
... The patient's cardiac status, breathing, and vital signs are monitored until he or she is stable. An electrocardiogram and chest x ray are taken. The patient's skin is cleansed to remove gel or paste, and, if necessary, ointment is applied to ...
Defibrillation
... The patient's cardiac status, breathing, and vital signs are monitored until he or she is stable. An electrocardiogram and chest x ray are taken. The patient's skin is cleansed to remove gel or paste, and, if necessary, ointment is applied to ...
... The patient's cardiac status, breathing, and vital signs are monitored until he or she is stable. An electrocardiogram and chest x ray are taken. The patient's skin is cleansed to remove gel or paste, and, if necessary, ointment is applied to ...
Heart Rhythm Disorders in Older Adults
... Exclusion of DINAMIT and IRIS did not change results Ann Intern Med 2010; 153:592-9 ...
... Exclusion of DINAMIT and IRIS did not change results Ann Intern Med 2010; 153:592-9 ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... or electro physiologic abnormalities depending on tumour type and location. The vast majority of tumours originating from the heart are benign. Rhabdomyomas are the most common pediatric cardiac tumours and are associated with tuberous sclerosis in 70-95% of cases. Rhabdomyomas may occur at any age, ...
... or electro physiologic abnormalities depending on tumour type and location. The vast majority of tumours originating from the heart are benign. Rhabdomyomas are the most common pediatric cardiac tumours and are associated with tuberous sclerosis in 70-95% of cases. Rhabdomyomas may occur at any age, ...
Inducible Ventricular Fibrillation in the Brugada Syndrome
... one should recommend EPS only to those patients in whom the clinical history or the ECG changes are serious enough to accept VF induction as “positive response” if this occurs. Is Inducible Ventricular Fibrillation of Prognostic Value in the Brugada Syndrome? The second question is whether the induc ...
... one should recommend EPS only to those patients in whom the clinical history or the ECG changes are serious enough to accept VF induction as “positive response” if this occurs. Is Inducible Ventricular Fibrillation of Prognostic Value in the Brugada Syndrome? The second question is whether the induc ...
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.