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Pacemaker Evaluation Algorithm by Lorne Costello

#Diagnosis #ECG #EKG #Pacemaker #Evaluation #Algorithm #PPM
Pacemaker Evaluation ... Algorithm by Lorne ... #Diagnosis #ECG ... #EKG #Pacemaker ... #PPM
Pacemaker
There are different types of cardiac pacemakers.
Here we see a pacemaker with one lead in the
Pacemaker There ... another in the right ventricle ... towards the left ventricle ... Pacing both ventricles ... Biventricular #PPM
Pacemaker Identification Algorithm

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Pacemaker Identification ... Algorithm For ... Identification Algorithm ... #PPM #Identification ... #Algorithm
Pacemaker Operating Modes
1 - Chamber paced
     A (atrium), V (ventricle), D (dual/both)
2
Pacemaker Operating ... A (atrium), V (ventricle ... before pacing the ventricle ... The voltage the pacemaker ... #PPM #Operating
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
MI in LBBB or Pacemaker ... Identify LBBB or Pacemaker ... axis deviation Pacemaker ... from native + PM ... electrocardiogram #ecg
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... II (3) 60-100 bpm ... ectopic atrial pacemaker ... leads rsr'), V-pacemaker ... #Approach #ECG
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
normal • The PP ... Wandering Atrial Pacemaker ... several cycle the pacemaker ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Pacemaker Timing Settings
 • Lower rate limit (50-60 bpm) - The lowest rate at which the
Pacemaker Timing ... period of time the pacemaker ... before pacing the ventricle ... would trigger pacemaker-mediated ... #PPM #Timing #Pacing
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
AV block, the PP ... by a junctional pacemaker ... an infra-Hisian pacemaker ... Complete #cardiology #ekg ... #ecg #diagnosis
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... group-beating" on the ECG ... by a junctional pacemaker ... an infra-Hisian pacemaker ... #ecg #diagnosis