153 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Pathophysiology Conduction pathways ... through SA Node ... SVT #diagnosis #cardiology ... #conduction #pathways
Cardiac conducting system 
 - Sinoatrial (SA) node normally generates the action potential, i.e. the electrical
- Sinoatrial (SA ... - The SA node ... through internodal pathways ... #Anatomy #Cardiology ... Heart #Conduction #Pathways
Wolff-Parkinson-White (WPW)
- Orthodromic AVRT: Narrow complex, most common 
- Antidromic AVRT: wide complex because goes through
through accessory pathway ... due to the two pathways ... WolffParkinsonWhite #WPW #Cardiology
Emergency Department ED Chest Pain Evaluation Pathway

Dr. Reuben Strayer @ https://twitter.com/emupdates

#ChestPain #Evaluation #Algorithm #Pathway #EmergencyDepartment #Diagnosis
Pain Evaluation Pathway ... ChestPain #Evaluation #Algorithm ... #Pathway #EmergencyDepartment
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... Sinus Syndrome (SA ... Syndrome #Syncope #Cardiology ... Differential #Diagnosis #Algorithm
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Arrhythmias • SA ... > 100 bpm) • SA ... Diagnosis #Causes #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
tachy not from SA ... /brady) (3) SA ... escaped beats (4) SA ... electrocardiogram #cardiology
Acute Coronary Syndrome - Diagnostic Likelihood Ratios for Symptoms and Physical Examination. Source: Fanaroff AC, Rymer
JA, Goldstein SA ... EBM #Diagnosis #Cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Sinus Syndrome • SA ... tachyarrhythmias #Cardiology ... Differential #Diagnosis #Algorithm
Arrhythmias - Differential Diagnosis Algorithm
May present as: palpitations, dizziness, syncope, chest discomfort
Cardiac Causes:
 - Structural
Differential Diagnosis Algorithm ... • Accessory pathway ... #Arrhythmias #Cardiology ... Differential #Diagnosis #Algorithm