Wednesday, March 29, 2017

Third Degree Heart Block

Third Degree Heart Block.  There is no relationship between the QRS complexes and the P waves. The PR interval changes.


Tuesday, March 28, 2017

Second Degree Heart Block Type II

Second Degree Heart Block Type II.  The PR interval on the conducted beats does not change.  Nonconducted P waves follow the QRS complexes.  The P - P interval is consistent.


Monday, March 27, 2017

Sinus Rhythm with Sinus Arrest and Escape Beats

Sinus rhythm with sinus arrest and escape beats.   I would call the escape beats junctional escape beats rather than ventricular escape beats.  In the underlying rhythm the QRS complexes are wide. The morphology of the QRS complexes of the escape beats, 3rd and 4th complexes, are similar to the underlying rhythm.


Monday, March 13, 2017

Transvenous Pacing







1.Turn on pacemaker

2.Insert bridging cable

3.Adjust rate to prescribed rate- never below the patient’s intrinsic rate






The MD will insert the red electrodes into the transvenous catheter
Insert the electrodes into the bridging cable and secure will roller screws
The proximal electrodes goes to the positive pole of the bridging cable
The MD will test the balloon and apply the protective sleeve

The syringe in the kit should stay with the patient.  Never substitute another syringe should it become lost
The slide clamp on the balloon inflation port slides to the right to close off the port














Atrial pacing

Ventricular pacing with failure to pace


AV sequential pacing

Ventricular paced with failure to capture

Demand ventricular pacing

AV pacing with demand atrial pacing


Failure to sense

Ventricular pacing