Category Archives: Electrophysiology
Alpha and beta angles of r’ wave to differentiate between Brugada syndrome and incomplete RBBB
It is a common problem to differentiate between types 2 and 3 of Brugada ECG pattern and incomplete right bundle branch block (IRBBB). Chevallier S and colleagues [New [..]
Cardiology MCQ: Features of HAPE (high altitude pulmonary edema) are all except:
Features of HAPE (high altitude pulmonary edema) are all except: a) Normal left atrial (LA) pressure b) Normal LVEDP (left ventricular end diastolic pressure) c) Increased pulmonary arterial [..]
Surgical ablation superior but riskier than catheter ablation for atrial fibrillation
Boersma LVA and associates [Atrial Fibrillation Catheter Ablation Versus Surgical Ablation Treatment (FAST) / Clinical Perspective : A 2-Center Randomized Clinical Trial. Circulation. 2012;125:23-30] randomized drug refractory atrial [..]
Intra thoracic impedance monitoring with audible alert in heart failure management
Intra thoracic impedance monitoring with audible alert has been tried in heart failure management. This technology incorporated in heart failure devices [(cardiac resynchronization therapy (CRT)] and implantable cardioverter-defibrillator [..]
Low atrial fibrillary rate predicts poor outcome in heart failure
Platonov PG and colleagues evaluated the role of atrial fibrillary rate in predicting the outcome in mild to moderate heart failure [Low Atrial Fibrillatory Rate Is Associated with [..]
Atrial tachycardia a step toward sinus rhythm after AF ablation?
Is the occurrence of atrial tachycardia a step towards sinus rhythm, after ablation of persistent atrial fibrillation (AF)? The results of the study by Ammar S et al [..]
High pass filter settings for surface vs intracardiac electrogram
High pass filters allow only frequencies above the set limit to pass through and hence eliminate components below a particular frequency. For surface ECG, the high pass filter [..]
Targeting LV lead for CRT with speckle-tracking echocardiography
Identifying the ideal site for left ventricular (LV) lead placement for cardiac resynchronization therapy (CRT) is a challenge to the operator. Khan FZ and colleagues [Targeted Left Ventricular [..]
Tachycardia mediated atrial cardiomyopathy and left atrial appendage velocity
Tachycardia mediated atrial cardiomyopathy is the term sometimes used to denote atrial mechanical stunning after reversion of persistent atrial arrhythmias like atrial fibrillation or atrial flutter to sinus [..]
Myocardial edema the cause of Wellens’ ECG pattern?
Dynamic T-wave inversion in the anterior leads known as Wellens’ ECG (electrocardiogram) pattern can be seen in conditions with reversible left ventricular dysfunction (stunned myocardium) of either ischemic [..]