The P-Wave - Journal of the Advanced Practitioner in Oncology
... Repolarization occurs in the opposite direction as depolarization. The electrical current begins in the epicardium and moves toward the ...
... Repolarization occurs in the opposite direction as depolarization. The electrical current begins in the epicardium and moves toward the ...
Ventricular arrhythmias
... puncture, Heparin to ACT of 280-350 12 F Stearable sheath (FlexCath) Stearable over the wire double lumen balloon catheter (Arctiv Front: 23-28 mm) Occlusion of each PV, freezing for 300 sec x 2. (temperature -40 to -60 C) Pacing w high output in SVC to capture phrenic nerve while freezing on the ri ...
... puncture, Heparin to ACT of 280-350 12 F Stearable sheath (FlexCath) Stearable over the wire double lumen balloon catheter (Arctiv Front: 23-28 mm) Occlusion of each PV, freezing for 300 sec x 2. (temperature -40 to -60 C) Pacing w high output in SVC to capture phrenic nerve while freezing on the ri ...
Response of recurrent sustained ventricular tachycardia to verapamil
... radionuclide ventriculogram (99Tc) were all normal. Maintenance oral verapamil treatment was recommended but the patient refused to take drugs three times a day. Amiodarone (400 mg once daily five days a week) was, therefore, continued and on this treatment one further attack occurred a year later w ...
... radionuclide ventriculogram (99Tc) were all normal. Maintenance oral verapamil treatment was recommended but the patient refused to take drugs three times a day. Amiodarone (400 mg once daily five days a week) was, therefore, continued and on this treatment one further attack occurred a year later w ...
Approach to narrow QRS tachycardias
... Because the foci fire independently of one another, the atrial rate is irregular and typically averages 100 beats/min. The P-R interval also may vary depending on the location of the foci relative to the AV node The mechanism for multifocal atrial tachycardia has not been defined clearly but may be ...
... Because the foci fire independently of one another, the atrial rate is irregular and typically averages 100 beats/min. The P-R interval also may vary depending on the location of the foci relative to the AV node The mechanism for multifocal atrial tachycardia has not been defined clearly but may be ...
Polymorphous ventricular tachycardia: clinical
... studied. The arrhythmia proved to be of a drug-related cause in 27 and due to an electrolyte disorder in four patients. Coexistent cardiac diseases without metabolic or drug-related abnormalities included ischemic heart disease in three, cardiomyopathy in three, and mitral valve prolapse in two. PVT ...
... studied. The arrhythmia proved to be of a drug-related cause in 27 and due to an electrolyte disorder in four patients. Coexistent cardiac diseases without metabolic or drug-related abnormalities included ischemic heart disease in three, cardiomyopathy in three, and mitral valve prolapse in two. PVT ...
Wide Complex Tachycardias - Texas Tech University Health
... Atrial fibrillation with aberration or with WPW ...
... Atrial fibrillation with aberration or with WPW ...
Roderick Tung, Noel G. Boyle and Kalyanam Shivkumar 2011;123:2284-2288 doi: 10.1161/CIRCULATIONAHA.110.989079
... undertaken (Figure 3). Epicardial access was obtained before anticoagulation with heparin following the technique described by Sosa et al,8 and endocardial access was obtained via a transseptal approach on full anticoagulation. Mapping within the pericardial space revealed a significantly greater ex ...
... undertaken (Figure 3). Epicardial access was obtained before anticoagulation with heparin following the technique described by Sosa et al,8 and endocardial access was obtained via a transseptal approach on full anticoagulation. Mapping within the pericardial space revealed a significantly greater ex ...
Persistent Atrial Fibrillation And Atrial Flutter Complicated By
... runs of wide complex tachycardia. Indeed this clinical case shows us the hard dilemma of wide QRS during atrial fibrillation: ventricular ectopy, preexcitation or aberrant ventricular conduction?6 We immediately ruled out the third ipothesis: the QRS morphology was not aberrant and there was no Ashm ...
... runs of wide complex tachycardia. Indeed this clinical case shows us the hard dilemma of wide QRS during atrial fibrillation: ventricular ectopy, preexcitation or aberrant ventricular conduction?6 We immediately ruled out the third ipothesis: the QRS morphology was not aberrant and there was no Ashm ...
Unusual Site of Origin of a Non-Automatic Focal Right Ventricular
... 6 years earlier, when it degenerated into ventricular fibrillation terminated by external defibrillation. Reversible arrhythmia causes were excluded. Her family history was negative for sudden cardiac death. The 12-lead electrocardiogram (ECG), signalaveraged ECG, echocardiography, and co ronary an ...
... 6 years earlier, when it degenerated into ventricular fibrillation terminated by external defibrillation. Reversible arrhythmia causes were excluded. Her family history was negative for sudden cardiac death. The 12-lead electrocardiogram (ECG), signalaveraged ECG, echocardiography, and co ronary an ...
Management of Common Arrhythmias
... recent onset of atrial fibrillation (within the previous 12 months) and no evidence of enlargement of the left atrium has a greater chance of achieving and maintaining sinus rhythm. If the arrhythmia is long-standing and the patient is not a suitable candidate for rate cardioversion, initial treatme ...
... recent onset of atrial fibrillation (within the previous 12 months) and no evidence of enlargement of the left atrium has a greater chance of achieving and maintaining sinus rhythm. If the arrhythmia is long-standing and the patient is not a suitable candidate for rate cardioversion, initial treatme ...
Supraventricular arrhythmias
... • 165 children (5-12 years) screened • 60 randomized, 3 withdrew: 20 ablation and 27 no ablation • 1 child in ablation group had arrhythmia (5%) and 12 of 27 in control group ( 44% ) • 2 children in control group had VF and one died ...
... • 165 children (5-12 years) screened • 60 randomized, 3 withdrew: 20 ablation and 27 no ablation • 1 child in ablation group had arrhythmia (5%) and 12 of 27 in control group ( 44% ) • 2 children in control group had VF and one died ...
Verapamil-induced polymorphous ventricular tachycardia
... The patient was a 31 year old woman with a history of supraventricular arrhythmias since childhood. Prophylaxis with digitalis, beta-adrenergic blocking agents and various type I antiarrhythmic agents had been unsuccessful in controlling recurrent episodes. One year before hospital admission, the pa ...
... The patient was a 31 year old woman with a history of supraventricular arrhythmias since childhood. Prophylaxis with digitalis, beta-adrenergic blocking agents and various type I antiarrhythmic agents had been unsuccessful in controlling recurrent episodes. One year before hospital admission, the pa ...
Review Treatment of tachyarrhythmias during pregnancy and lactation
... fetal supraventricular tachycardia. However, its chronic use may be associated with a lupus-like syndrome, as in non-pregnant patients[6]. Procainamide quantities reaching the nursing infant are clinically insignificant[6]. Disopyramide may cause uterine contractions[27]. Experience with its use in ...
... fetal supraventricular tachycardia. However, its chronic use may be associated with a lupus-like syndrome, as in non-pregnant patients[6]. Procainamide quantities reaching the nursing infant are clinically insignificant[6]. Disopyramide may cause uterine contractions[27]. Experience with its use in ...
Clinical review: Clinical management of atrial fibrillation – rate
... digoxin in controlling ventricular rate during AF in the critically ill. Indeed, diltiazem has been shown to be superior to digoxin in controlling ventricular rate during acute AF [21]. Rate control, however, may not always be achieved with a single drug. In the study conducted by Farshi and coworke ...
... digoxin in controlling ventricular rate during AF in the critically ill. Indeed, diltiazem has been shown to be superior to digoxin in controlling ventricular rate during acute AF [21]. Rate control, however, may not always be achieved with a single drug. In the study conducted by Farshi and coworke ...
Arrhythmias in ECGs - Auckland Heart Group
... The most common arrhythmia that can happen with this ECG is: A) SVT (orthodromic AV reciprocating tachycardia) B) Atrial fibrillation C) Ventricular fibrillation D) Sinus rhythm ...
... The most common arrhythmia that can happen with this ECG is: A) SVT (orthodromic AV reciprocating tachycardia) B) Atrial fibrillation C) Ventricular fibrillation D) Sinus rhythm ...
Newly Approved Anticoagulants
... Loss of function, results in increased sensitivity to warfarin and increased potential for drug interactions because VKORC1 does not function normally to produce vitamin K dependent clotting factors (II, VII, IX, X, proteins C and S) – 37% of Caucasians, 14% of AAs, 89% of Asians have at least one v ...
... Loss of function, results in increased sensitivity to warfarin and increased potential for drug interactions because VKORC1 does not function normally to produce vitamin K dependent clotting factors (II, VII, IX, X, proteins C and S) – 37% of Caucasians, 14% of AAs, 89% of Asians have at least one v ...
Atrial Fibrillation and Flutter - Cleveland Clinic Center for Continuing
... IC agents (Na blockers), slows conduction and may result in slowing and regularization of the fibrillatory wavelets into flutter. If there was significant prolongation in the flutter wave CL, 1:1 AV conduction across the AV node may occur, resulting in a paradoxical increase in ventricular rate. Due ...
... IC agents (Na blockers), slows conduction and may result in slowing and regularization of the fibrillatory wavelets into flutter. If there was significant prolongation in the flutter wave CL, 1:1 AV conduction across the AV node may occur, resulting in a paradoxical increase in ventricular rate. Due ...
Rhythm Management
... –Symptomatic (NYHA class 2-4) with LVEF 35% –Asymptomatic with prior hospitalization for CHF or LVEF 25% –History of significant AF –1 episode >6-hour duration within past 6 months or –1 episode of shorter duration but with prior electrical cardioversion ...
... –Symptomatic (NYHA class 2-4) with LVEF 35% –Asymptomatic with prior hospitalization for CHF or LVEF 25% –History of significant AF –1 episode >6-hour duration within past 6 months or –1 episode of shorter duration but with prior electrical cardioversion ...
lhnsient Digitoxic Double Tachycardia
... several hours to control atrial fibrillation with rapid ventricular response in a patient who gave no history of being on digitalis is considered within therapeutic range. At that time the renal insufficiency secondary to marked dehydration was not appreciated. However, renal insufficiency does not ...
... several hours to control atrial fibrillation with rapid ventricular response in a patient who gave no history of being on digitalis is considered within therapeutic range. At that time the renal insufficiency secondary to marked dehydration was not appreciated. However, renal insufficiency does not ...
Supraventricular Arrhythmias - Aultman Cardiology Fellowship
... normal His Purkinje system similar to normal sinus rhythm • Distinct from ventricular tachycardia which only originates in the ventricles ...
... normal His Purkinje system similar to normal sinus rhythm • Distinct from ventricular tachycardia which only originates in the ventricles ...
New antiarrhythmic agents for atrial fibrillation
... recurrent self-terminating episodes. In these patients, the main aim is rate control and antithrombotic therapy. This is generally achieved with class IV agents (diltiazem, verapamil), class II agents (β−blockers) or digoxin. Amiodarone may have a role to play, particularly in patients with AF and c ...
... recurrent self-terminating episodes. In these patients, the main aim is rate control and antithrombotic therapy. This is generally achieved with class IV agents (diltiazem, verapamil), class II agents (β−blockers) or digoxin. Amiodarone may have a role to play, particularly in patients with AF and c ...
Role of antiarrhythmic drugs: frequent implantable cardioverter
... well as the rate of hospitalization.25,29 A decrease in the number of ICD discharges also prolongs the battery life of the device.31 As such, antiarrhythmic drug therapy result in overall improvement in quality of life of ICD implanted patients. Additionally, most antiarrhythmic drugs tend to prolon ...
... well as the rate of hospitalization.25,29 A decrease in the number of ICD discharges also prolongs the battery life of the device.31 As such, antiarrhythmic drug therapy result in overall improvement in quality of life of ICD implanted patients. Additionally, most antiarrhythmic drugs tend to prolon ...
Ventricular Tachycardia
... - associated with a significant reduction in the rate of cardiac events in LQT1 and LQT2 - no evident reduction in LQT3 mutations (Moss et al., Circulation 2000) → high rate of residual cardiac events under beta-blocker therapy (Priori et al., JAMA 2004) ...
... - associated with a significant reduction in the rate of cardiac events in LQT1 and LQT2 - no evident reduction in LQT3 mutations (Moss et al., Circulation 2000) → high rate of residual cardiac events under beta-blocker therapy (Priori et al., JAMA 2004) ...
Electrophysiological Effects of MS
... The canine complete heart block model was used because it provides the choice of a wide range of stimulation frequencies, permit- ...
... The canine complete heart block model was used because it provides the choice of a wide range of stimulation frequencies, permit- ...
Amiodarone
Amiodarone is a class III antiarrhythmic agent used for various types of cardiac dysrhythmias, both ventricular and atrial. It was discovered in 1961. Despite relatively common side-effects, it is used in arrhythmias that are otherwise difficult to treat with medication.