Electrophysiological Interventional Procedures and Devices Flashcards
Which procedure is used to terminate SVT or organized ventricular tachycardias?
External cardioversion
When do they shock u in the EKG rhythm during an external cardioversion?
at the time of a QRS complex
What would happen if they accidentally shock u during the T wave?
V fib
What procedure is used to terminate V fib?
External defibrillation
External defibrillation is the same technique as external cardioversion except which principle?
Theres no organized QRS in V fib so u just shock that sucker wheneva.
This type of pacemaker delivers electric pulses tot he patients chest through a large adhesive electrode placed on the skin.
Transthoracic (transcutaneous) pacemaker
What is the advantage transthoracic pacemakers?
they can be applied rapidly
What is the main disadvantage to transthoracic pacemakers?
You need a strong ass current, so it stimulates thoracic nerves and muscles and hurts like balls.
These are the pacemakers where a catheter is inserted percutaneously into the venous system, passed into the heart, and connected to an external power source.
Transvenous pacemaker
What are the main disadvantages to having a transvenous pacemaker?
Increased risk of infection and/or thrombus from the catheter.
An ICD can be implanted for patients who might experience which arrhythmia?
V tach
This is a special type of artificial pacing where theres a discharge of a rapid burst of electric impulses rather than a shock.
Anti-tachycardia pacing (ATP)
If the heart is now paced at a faster rate than the tachycardia by using an ATP, what happens to the reentrant circuit to cause correction?
It becomes refractory, thus breaking the reentrant circuit
True or False: ATP can be used for V fib.
False.
In pacing mode I, the OAVD is used to show what?
Which chamber is paced
