23 results
Pacemaker Evaluation Algorithm by Lorne Costello

#Diagnosis #ECG #EKG #Pacemaker #Evaluation #Algorithm #PPM
Pacemaker Evaluation Algorithm ... #Diagnosis #ECG ... #EKG #Pacemaker ... #Evaluation #Algorithm ... #PPM
1. "Sinus Tach" at ~150 bpm is your cue to look for flutter waves
2. Don't trust
"Sinus Tach" at ... ~150 bpm is your ... #Clinical #EM #Cardiology ... #ECG #Atrial #Flutter
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... • During sinus ... • In sinus rhythm ... , the PP and RR ... or slowing of sinus
Paroxysmal AV Block on ECG
 - Characterized by an abrupt and persistent AV block in the
on ECG - Characterized ... conducted or blocked PAC ... or PVC, acceleration ... or slowing of sinus ... #ecg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... normal • The PP ... presence of AV block ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
• In sinus rhythm ... , the PP and RR ... usually 40-60 bpm ... Complete #cardiology #ekg ... #ecg #diagnosis
Paroxysmal AV Block aka Ventricular Standstill
 • Abrupt and persistent AV block ( multiple P waves
conducted or blocked PAC ... or PVC, acceleration ... or slowing of sinus ... #Paroxysmal #AVBlock ... diagnosis #cardiology #ecg
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
• Third degree block ... or 3rd degree block ... Tri-fascicular block ... unclear origin • Sinus ... #Indications #PPM
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... ) • Sinus Bradycardia ... • Sick Sinus ... • AV Block (ISt ... Differential #Diagnosis #Algorithm
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
arrhythmia syndromes (e.g ... Bundle branch block ... 300 = NSVT EKG ... expected for the next sinus ... tachycardia • Sinus