Editorials Original Articles
... CIRCULATION: ARRHYTHMIA AND ELECTROPHYSIOLOGY (ISSN 1941-3084) is published monthly online-only by Wolters Kluwer Health, Inc. at 14700 Citicorp Drive, Bldg 3, Hagerstown, MD 21742. Business offices are located at Two Commerce Square, 2001 Market Street, Philadelphia, PA 19103. Production offices ar ...
... CIRCULATION: ARRHYTHMIA AND ELECTROPHYSIOLOGY (ISSN 1941-3084) is published monthly online-only by Wolters Kluwer Health, Inc. at 14700 Citicorp Drive, Bldg 3, Hagerstown, MD 21742. Business offices are located at Two Commerce Square, 2001 Market Street, Philadelphia, PA 19103. Production offices ar ...
Electrolytes and pH Changes in Relation to Hypothermic Ventricular
... calcium in the genesis of hypothermic ventricular fibrillation, although the arrhythmiaproducing effects of calcium in normothermia are well known. Hoff and co-workers20 and Grumbach and associates12 have demonstrated experimentally that a gradual increase in the calcium concentration of the blood l ...
... calcium in the genesis of hypothermic ventricular fibrillation, although the arrhythmiaproducing effects of calcium in normothermia are well known. Hoff and co-workers20 and Grumbach and associates12 have demonstrated experimentally that a gradual increase in the calcium concentration of the blood l ...
SRAdoc®/SRA24® Report The SRAdoc®/SRA24® report is
... The following results are determined by SRA24®: Significant signs of acute atrial fibrillation No significant signs of acute atrial fibrillation ...
... The following results are determined by SRA24®: Significant signs of acute atrial fibrillation No significant signs of acute atrial fibrillation ...
Cardiac resynchronization therapy guided by
... In this study, we found that CRT guided by tissue Doppler results in positive therapeutic effects, thus indicating that tissue Doppler is a useful tool for improving CRT. Our findings are consistent with the literature. Two studies have shown that only indicators of ventricular mechanical asynchrony ...
... In this study, we found that CRT guided by tissue Doppler results in positive therapeutic effects, thus indicating that tissue Doppler is a useful tool for improving CRT. Our findings are consistent with the literature. Two studies have shown that only indicators of ventricular mechanical asynchrony ...
Biomarkers for prognosis in atrial fibrillation: unfulfilled hopes
... of life, and the treatment has not been shown to decrease mortality. Thus, optimal management of patients with AF requires an individualized approach, taking into account the underlying pathology. Appropriate management decisions might be aided by the identification of a subgroup of patients with AF ...
... of life, and the treatment has not been shown to decrease mortality. Thus, optimal management of patients with AF requires an individualized approach, taking into account the underlying pathology. Appropriate management decisions might be aided by the identification of a subgroup of patients with AF ...
the cardiac cycle - Annammal College of Nursing
... Blood arriving at the heart cannot enter the atrium so it flows back up the jugular vein, causing the first discernible wave in the jugular venous pulse. Atrial pressure drops when the atria stop contracting. During atrial systole the atrium contracts and tops off the volume in the ventricle with on ...
... Blood arriving at the heart cannot enter the atrium so it flows back up the jugular vein, causing the first discernible wave in the jugular venous pulse. Atrial pressure drops when the atria stop contracting. During atrial systole the atrium contracts and tops off the volume in the ventricle with on ...
Don`t Always Blame CREST Syndrome for Heart Problems
... and RV failure.4 Palpitations and syncope may be the clinical manifestation of ventricular arrhythmia.2, 4 Ventricular arrhythmias in ARVC range from premature ventricular contractions to sustained ventricular tachycardia (VT).7 In early disease, the presence of VT is secondary to ARVC and may be a ...
... and RV failure.4 Palpitations and syncope may be the clinical manifestation of ventricular arrhythmia.2, 4 Ventricular arrhythmias in ARVC range from premature ventricular contractions to sustained ventricular tachycardia (VT).7 In early disease, the presence of VT is secondary to ARVC and may be a ...
Effect of Therapy on Left Ventricular Function in
... specific gravity of cardiac muscle) with the formula: left ventricular mass = (end-diastolic diameter + 2 x left ventricular posterior wall thickness)* - end-diastolic volume x 1.1. The left ventricular mass index was obtained by dividing left ventricular mass by the surface area of the patient. The ...
... specific gravity of cardiac muscle) with the formula: left ventricular mass = (end-diastolic diameter + 2 x left ventricular posterior wall thickness)* - end-diastolic volume x 1.1. The left ventricular mass index was obtained by dividing left ventricular mass by the surface area of the patient. The ...
Ventricular Stimulation After Myocardial Infarction
... In conclusion, although PVS is now less frequently indicated after MI than 10 years ago, it is still recommended (IB) in patients with syncope and LVEF more than 30-35% or in asymptomatic patients with a LVEF between 30-40% and with non sustained VT at Holter monitoring. Combined with imaging method ...
... In conclusion, although PVS is now less frequently indicated after MI than 10 years ago, it is still recommended (IB) in patients with syncope and LVEF more than 30-35% or in asymptomatic patients with a LVEF between 30-40% and with non sustained VT at Holter monitoring. Combined with imaging method ...
Anti-arrhythmic Drugs - Ipswich-Year2-Med-PBL-Gp-2
... MOA - Increases force of myocardial contraction and decreases AV nodal conduction, predominantly by PNS effect on the heart, also slowing the heart rate. It can increase the excitability of cardiac muscle, particularly at higher doses. Precautions ...
... MOA - Increases force of myocardial contraction and decreases AV nodal conduction, predominantly by PNS effect on the heart, also slowing the heart rate. It can increase the excitability of cardiac muscle, particularly at higher doses. Precautions ...
SUNY ESF CPR/AED Program
... The AED is an electronic device that delivers a shock to restore the rhythm of a fibrillating heart. An AED contains a microprocessor that analyzes and detects a fibrillating heart rhythm through adhesive pads on a victim's chest, judges whether defibrillation is needed, and then delivers a measured ...
... The AED is an electronic device that delivers a shock to restore the rhythm of a fibrillating heart. An AED contains a microprocessor that analyzes and detects a fibrillating heart rhythm through adhesive pads on a victim's chest, judges whether defibrillation is needed, and then delivers a measured ...
Indezine Template
... • The troponin level in myocardial infarction predicts extent of infarct, risk for complications, morbidity, mortality and length of stay. • The troponin level outside setting of myocardial infarction independently predicts severity of illness, mortality, duration of ventilation, as well as length o ...
... • The troponin level in myocardial infarction predicts extent of infarct, risk for complications, morbidity, mortality and length of stay. • The troponin level outside setting of myocardial infarction independently predicts severity of illness, mortality, duration of ventilation, as well as length o ...
VT in abnormal heart DR SANMATH
... o intrinsicoid deflection time in V2 (measured from the earliest ventricular activation to the peak of the R wave in V2) of more than 85 milliseconds [sensitivity- 87% and specificity- 90%] o shortest RS complex duration (measured from the earliest ventricular activation to the nadir of the first S ...
... o intrinsicoid deflection time in V2 (measured from the earliest ventricular activation to the peak of the R wave in V2) of more than 85 milliseconds [sensitivity- 87% and specificity- 90%] o shortest RS complex duration (measured from the earliest ventricular activation to the nadir of the first S ...
electrophysiology of heart
... • It is a tract of specialized cardiac cells that originate at AV Node and passes through the fibrous ring and enters interventricular septum • Divides to form right and left bundle branches which travel down septum, curve around tip of ventricular chambers, travel back toward atria ...
... • It is a tract of specialized cardiac cells that originate at AV Node and passes through the fibrous ring and enters interventricular septum • Divides to form right and left bundle branches which travel down septum, curve around tip of ventricular chambers, travel back toward atria ...
RRC_art 6.indd - Romanian Journal of Cardiology
... QRS complexes is similar to that of the QRS complexes recorded during the spontaneous non-sustained ventricular tachycardia episode depicted in Fig. 1B. (B) Post-effort, at lower heart rates, complete resolution of ventricular ectopic beats is noticed. ...
... QRS complexes is similar to that of the QRS complexes recorded during the spontaneous non-sustained ventricular tachycardia episode depicted in Fig. 1B. (B) Post-effort, at lower heart rates, complete resolution of ventricular ectopic beats is noticed. ...
Evaluation of Syncope in Children
... • Sudden cardiac death the in the young: rare but catastrophic events • Estimated incidence varies widely: 0.6-6.2 deaths per 100,000 persons • Diagnoses related to SCDY include: – Hypertrophic cardiomyopathy (HCM) - Genetic – Coronary artery anomalies – Cardiac Arrhythmias - Genetic – Myocarditis – ...
... • Sudden cardiac death the in the young: rare but catastrophic events • Estimated incidence varies widely: 0.6-6.2 deaths per 100,000 persons • Diagnoses related to SCDY include: – Hypertrophic cardiomyopathy (HCM) - Genetic – Coronary artery anomalies – Cardiac Arrhythmias - Genetic – Myocarditis – ...
Control of the Cardiac Cycle
... • The muscles of the atria and ventricles have their own natural frequency of contraction- the atrial muscle has a higher frequency (number of contractions) than the ventricular muscle • The property of the muscle could cause inefficient pumping (fibrillation) if the contractions are not synchronise ...
... • The muscles of the atria and ventricles have their own natural frequency of contraction- the atrial muscle has a higher frequency (number of contractions) than the ventricular muscle • The property of the muscle could cause inefficient pumping (fibrillation) if the contractions are not synchronise ...
AFA Ablation of The Atrioventricular Node and Pacemaker
... ablate-and-pace tends to be less commonly performed than previously but nevertheless remains a reasonable treatment option even in the most experienced and advanced atrial fibrillation centres. Reasons for this approach today would be a combination of: • A highly symptomatic patient • Failed efficacy ...
... ablate-and-pace tends to be less commonly performed than previously but nevertheless remains a reasonable treatment option even in the most experienced and advanced atrial fibrillation centres. Reasons for this approach today would be a combination of: • A highly symptomatic patient • Failed efficacy ...
Document
... compliance, resulting in impaired ventricular filling during diastole. • It is the least common type of Cardiomyopathy. • The problem is a stiff and inelastic ventricle that can be filled only with great effort. • Myocardial contractility, although often normal early in the course of the disease, us ...
... compliance, resulting in impaired ventricular filling during diastole. • It is the least common type of Cardiomyopathy. • The problem is a stiff and inelastic ventricle that can be filled only with great effort. • Myocardial contractility, although often normal early in the course of the disease, us ...
ECG How to’s - CecchiniCuore
... Because the Left Ventricle has greater mass than the right ventricle, most of the electrical impulse travels in a left and downward direction. This electrical activity moving in an upward deflection towards the positive pole of Lead II results in the inscription of the large R wave. ...
... Because the Left Ventricle has greater mass than the right ventricle, most of the electrical impulse travels in a left and downward direction. This electrical activity moving in an upward deflection towards the positive pole of Lead II results in the inscription of the large R wave. ...
A1984SK79800001
... first several hours following coronary occlusion was a dynamic process amenable to potentially beneficial therapeutic intervention. I was given1 2 a copy of A.GE. Pearse’s histochemistry textbook, ’ a small laboratory, a certain amount of research funds, and a great deal of encouragement to document ...
... first several hours following coronary occlusion was a dynamic process amenable to potentially beneficial therapeutic intervention. I was given1 2 a copy of A.GE. Pearse’s histochemistry textbook, ’ a small laboratory, a certain amount of research funds, and a great deal of encouragement to document ...
Surgical Management of Traumatic Aorta
... to instable hemodynamics, but others may have a delayed clinical presentation and therefore a delayed repair. The interval until definitive repair could be as long as 17 years, as reported by Ehrenstein and colleagues [3]. In our case, the time interval between injury and complete repair was 4 years ...
... to instable hemodynamics, but others may have a delayed clinical presentation and therefore a delayed repair. The interval until definitive repair could be as long as 17 years, as reported by Ehrenstein and colleagues [3]. In our case, the time interval between injury and complete repair was 4 years ...
Left Ventricular Structure and Function in Aortic Stenosis: The Inner
... Concentric hypertrophy is developed in aortic stenosis (AS). This hypertrophy is characterized by a decrease in the relationship between the end-diastolic diameter and the left ventricular wall thickness (LV) (r/h) with a normal sized cavity. If thicknessradius relationship and LV systolic pressure ...
... Concentric hypertrophy is developed in aortic stenosis (AS). This hypertrophy is characterized by a decrease in the relationship between the end-diastolic diameter and the left ventricular wall thickness (LV) (r/h) with a normal sized cavity. If thicknessradius relationship and LV systolic pressure ...
Proarrhythmic Effects Of Antiarrhythmic Drugs: Case Study
... Pharmacological cardioversion of AF can be achieved using a number of drugs with different pharmacological properties, including disopyramide, procainamide, quinidine (all class IA), flecainide, propafenone (both class IC), dofetilide, ibutilide, sotalol, and amiodarone (all class III). Currently, th ...
... Pharmacological cardioversion of AF can be achieved using a number of drugs with different pharmacological properties, including disopyramide, procainamide, quinidine (all class IA), flecainide, propafenone (both class IC), dofetilide, ibutilide, sotalol, and amiodarone (all class III). Currently, th ...
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.