Reentrant Ventricular Tachyarrythmias

Question 1

What defines Reentrant Ventricular Tachy?

Answer 1

3 consecutive QRS complexes originating in the ventricles and recurring at a rapid rate.

Question 2

What are the variations of Reentrant Ventricular Tachy?

Answer 2

Sustained or non-sustained

Question 3

What are the mechanisms of Reentrant Ventricular Tachy?

Answer 3

Reentry(common)
-micro of macroreentry
-enhanced automaticity
MOST COMMONLY associated with ischemic heart disease.
cardiomyopathy, valvular disease, drugs(quinidine)

Question 4

What are sources of error in diagnosing VT?

Answer 4

Believing VT cant be well tolerated
Depending on a single ECG lead
Depending on independant atrial activity
Not always irregular 
Ignoring QRS morphology