Device Cases Flashcards
What rhythm?
VT
What is happening here?
VT -> Successful ATP
What is happening here
VT -> 1 failed shock -> 1 successful shock (type 2 break ) -> 1 more shock after this due to redetection
What’s happened here?
VT -> Terminated with ATP
Arrhythmia?
SVT
Arrhythmia?
VT, Atrial undersensing
Arrhythmia?
Atrial fibrillation with rapid ventricular response -> Shock
What going on?
RV lead impedance spike, ?Fracture
What’s going on?
Ventricular lead oversensing
What’s going on?
Ventricular lead Undersensing
What factors affect sensing?
-insulation break
-wire fracture
-electrode placement within the heart
-lead polarity
-EMI
Review battery depletion
Review approach to failure to capture
Diagnosis
Atrial lead undersensing
Diagnosis
T wave oversensing -> inhibition of pacing
Diagnosis?
Tracking Atrial Tachycardia (Plan: VVIR, Program Mode switch)
Diagnosis?
T wave oversensing (Train track sign), Plan: Decrease ventricular sensing, extend post ventricular blanking, Lead revision)
Diagnosis?
T wave oversensing (Train track sign), Plan: Decrease ventricular sensing, extend post ventricular blanking, Lead revision)
Diagnosis?
Atrial far field oversensing resulting in innappropriate labeling of atrial arrhythmia
Diagnosis?
Oversensing noise: Plan: Look at impedance, CXR -> Lead revision
Diagnosis?
Oversensing EMI
Diagnosis?
Oversensing Extracardiac noise
Diagnosis?
Shock for Afib with RVR
Diagnosis?
VT initiated by PVC
Diagnosis?
Likely SVT
Diagnosis?
Atrial Fibrillation with RVR
Diagnosis?
Atrial Fibrillation with VT -> Shocked into NSR
Diagnosis?
Ventricular lead tracking noist
What’s going on here?
Loss of capture
