Posted by: Johnson Francis on: 30 Oct, 2009
Atrial fibrillation with WPW syndrome (Click on the image for an enlarged view) Atrial fibrillation with WPW syndrome (pre-excitation) is a potentially life threatening arrhythmia. Since it is a wide QRS tachycardia, it is often mistaken for ventricular tachycardia. Due to very fast rates, they often present with hemodynamic compromise requiring cardioversion. In the current [...]
Tags:
atrial fibrillation,
aVR,
below 250 msec,
can degenerate into ventricular fibrillation,
cardioversion,
estimate of the ventricular refractory period,
hemodynamic compromise.,
it is ominous as the ventricular rates can go very high,
pre-excitation,
short PR interval and delta waves,
shortest RR interval gives an estimate of the ventricular refractory period,
sinus bradycardia,
wide QRS tachycardia,
WPW syndrome
Posted by: Johnson Francis on: 20 Sep, 2009
Epsilon wave is seen in: a. Tachycardiomyopathy b. Arrhythmogenic right ventricular dysplasia c. WPW syndrome d. Brugada syndrome Answer: b Arrhythmogenic right ventricular dysplasia is a condition characterised by fibrofatty degeneration of the right ventricle and recurrent ventricular tachycardia. Epsilon wave is also called “post excitation wave” akin to the prexcitation delta wave seen in [...]
Posted by: Johnson Francis on: 27 Feb, 2009
Click on the image for a larger view This ECG has a superficial resemblance to left bundle branch with tall slurred QRS complexes in lateral leads. The QS complexes in inferior leads mimick inferior wall infarction. Actually it is a non infarction Q wave or pseudo infarction pattern. The PR interal is short and is [...]
Posted by: Johnson Francis on: 16 Nov, 2008
Supraventricular tachycardias are quite common in clinical cardiology practice. Medical treatment of supraventricular tachycardias involves regular intake of drugs for several years. Poor efficacy and bothersome side effects of drugs, including proarrhythmia can be a problem. Arrhythmia surgery has largely been replaced by catheter ablation. Catheter ablation be defined as the sse of an electrode [...]
Tags:
Ablation catheter,
ablator,
atrial fibrillation,
AVNRT,
AVRT,
Catheter ablation of Supraventricular Tachycardias,
electrophysiology recorders,
Mahaim fibre tachycardia,
programmed stimulators,
radiofrequency generators,
supraventricular tachycardia,
WPW syndrome
Posted by: Johnson Francis on: 08 Oct, 2008
What is the diagnosis? Wolf – Parkinson – White syndrome. Wolf – Parkinson – White (WPW) syndrome is characterised by a short PR and delta wave with a propensity for arrhythmias. Delta wave is the pre-excitation wave which manifests as a slurred initial portion of the QRS. Since the depolarisation is abnormal, repolarisation sequence is [...]
