Ventricular Pre-Excitation

Question 1

Ventricular pre-excitation - what does term mean?

Answer 1

-patients have an alternate bundle to the ventricles (bundle of kent)

Question 2

Ventricular pre-excitation on ECG?

Answer 2

• delta wave before QRS - small ramp “/” deforming the QRS = somewhat wide-different looking QRS
• *-PR interval is short**

Question 3

Which condition has classic pre-excitation and classic supraventricular arrhythmia?

Answer 3

Wolff-Parkinson-White syndrome

Question 4

-pre-excitation can predisose to what additional/resulting condion?

Answer 4

• reentrant supraventricular tachyarrhythmia

- macro (via the bypass reentry) and micro (AV junction reentry)

Question 5

Ventricular pre-excitation on ECG can mimic:

Answer 5

• BBB

- MI

Question 6

2 events that widen QRS?

Answer 6

-BBB and pre-excitation