8 results
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Pacemaker Placement ... • Third degree block ... • Reversible causes ... of AV block - ... #Indications #PPM
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
, the PP and RR ... usually 40-60 bpm ... by a junctional pacemaker ... an infra-Hisian pacemaker ... electrocardiogram #classification
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Syndrome • SA Block ... • AV Block (ISt ... Differential #Diagnosis #Algorithm ... #causes
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Transient K+ efflux moving ... : • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block
LAD
IWMI
LAHB
RAD
[PHB
RVH
Lateral wall infarct
Lead reversal
Dextrocardia
Wide ORS
RBBB - terminal delay
[BBB
IVED
WPW = delta wave
Hyperkalemia
Type l antiarrhythmic drugs
Pacemaker
ST elevation
Early repolarization
antiarrhythmic drugs Pacemaker ... hypertrophy Sinus pause ... Sinus arrest SA block ... Type1AntiarrhythmicDrugs #Pacemaker ... EarlyRepolarization #DiffuseSTelevation
Hypotension - Guidelines for Crises in Anaesthesia

Hypotension is commonly due to unnecessarily deep anaesthesia, the autonomic
effects of neuraxial block ... reservoir bag moving ... ventilator bellows moving ... heart rate <60 bpm ... heart rate >100 bpm
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... /3rd degree AV Block ... • Pacemaker ... Differential #Diagnosis #Algorithm ... #causes
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Pardee's sign" + PPD ... Bundle Branch Block ... bundle-branch block ... voltage Other Causes