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Tachycardia - Wide vs Narrow Complex, Regular vs Irregular rhythm table

#Diagnosis #Cardiology #EKG #ECG #WideComplex #Narrow
vs Irregular rhythm ... table #Diagnosis ... #ECG #WideComplex ... #Tachycardia #Irregular ... #Table #Comparison
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... : • Irregular ... Wide-Complex - Polymorphic ... : • Polymorphic ... Diagnosis #Algorithm #Causes
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Differential Diagnosis Table ... whether AF is cause ... Tx: Underlying cause ... Differential #Diagnosis #Table ... #causes #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Narrow Complex - Irregular ... Wide Complex - Irregular ... interval) • Polymorphic ... long QT) • Irregular ... Diagnosis #Algorithm #causes
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
Treatment of Stable ... give adenosine Irregular ... nodal agents (e.g ... consultation • If polymorphic ... protocol #Stable
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... in conduction causes ... QRS widens, and irregular ... #ECG #Changes # ... Progression #Table
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Treatment of Stable ... Control rate (e.g ... Treat underlying cause ... Irregular Rhythm ... Treat underlying cause
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... DANGER Narrow - Regular ... node Narrow - Irregular ... 200ms from longer pause ... bradyarrhythmia #ECG
Algorithm for the Management of Ventricular Tachycardia Electrical Storm
ES diagnosed (≥ 3 episodes of VT/ICD therapies
cardioversion Stable ... of reversible causes ... +ICD • -ICD Polymorphic
Recurrent Polymorphic VT/Torsades de Pointes - Management Algorithm
Drugs that prolong QT interval:
 • Class 1a (quinidine,
Recurrent Polymorphic ... • Adult: 0.5-5 mcg ... Pediatric: 0.1-1 mcg ... 1b (lidocaine)- case ... Marshall, MD #Polymorphic