23 results
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
A regular rhythm ... retrograde) - AVNRT ... , AVRT, Junctional ... differential #diagnosis #causes ... #cardiology
Cannon A Waves in AVNRT on Neck Physical Exam

69 year old female patient comes with a
Cannon A Waves in AVNRT ... ... regular cannon ... a waves in AVNRT ... #Neck #PhysicalExam ... #JVP #Cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Aflutter • AVNRT ... tachyarrhythmias #Cardiology ... Differential #Diagnosis #Algorithm ... #causes
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
simultaneously at regular ... This tracing plus regular ... to diagnose the case ... #PhysicalExam # ... JVP #Cardiology
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
deflection not AVRT ... /AVNRT. ... Wide - Regular: ... Diagnosis #Management #cardiology ... #wide #narrow #algorithm
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Narrow-Complex Tachycardia Regular ... Converts - Probably AVnRT ... Treat underlying cause ... Treatment #management #cardiology ... #algorithm
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... AFlutter • AVNRT ... Syndrome #Syncope #Cardiology ... Differential #Diagnosis #Algorithm ... #causes
Abnormal Jugular Venous Pressure (JVP) Algorithm
Outward Wave / Peak
 • With Every Beat
Abnormal Jugular ... Pressure (JVP) Algorithm ... saipeeps #JVP #Jugular ... #diagnosis #cardiology ... #physicalexam
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
re-entrant tachycardia (AVRT ... re-entrant tachycardia (AVNRT ... Contractions (PVC ... Differential #Diagnosis #Causes ... #cardiology
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
• ST vs SVT (AVNRT ... whether AF is cause ... Tx: Underlying cause ... Narrow #Irregular #causes ... #cardiology