63 results
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Differential Diagnosis Algorithm ... flutter • AV ... tachycardia • AV ... #Causes #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... Tachycardia (MAT) • AV ... node: AV re-entrant ... tachycardia (AVRT), AV ... Differential #Diagnosis #Causes
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
I or II • Mobitz ... II: • Mobitz II ... • First degree AV ... • Reversible causes ... of AV block -
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(3) SVTs - atrial ... (3) Multifocal atrial ... 200ms from longer pause ... 2º - Mobitz I ... II / Mobitz - ,
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... • SA Block • AV ... with Variable AV ... Differential #Diagnosis #Algorithm ... #causes
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Defect ** • Atrial ... Differential #Diagnosis #Algorithm ... #Causes #Pulmonary
Clues to Differential Diagnosis of Central Cyanosis: Onset of cyanosis, Clubbing, Secondary erythrocytosis, Auscultation, X-ray, Echocardiography,
Clues to Differential ... Echocardiography, Arterial ... - Pulmonary AV ... Central #Cardiology #Causes
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
. 2nd Degree, Mobitz ... P and QRS • Atrial ... • Block in AV ... (block beyond AV ... HeartBlocks #Types #Classification
Non-lschemic Causes of Cardiogenic Shock:

Beta-Blockers, Calcium Channel Blockers, Digoxin 

Myocarditis 

Cardiomyopathies (sarcoidosis, amyloidosis, Takatsubo, 
hemochromatosis) 

Valvular
Non-lschemic Causes ... Supraventricular/Atrial ... Fibrillation AV ... #Nonlschemic #Causes
Causes of Diastolic Murmurs - Differential Diagnosis Algorithm
Early Diastolic:
 • Aortic Regurgitation
 • Pulmonary Regurgitation (Graham-Steell
Causes of Diastolic ... Differential Diagnosis Algorithm ... Flint Murmur) • Atrial ... Differential #Diagnosis #Algorithm ... #causes