11 results
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Classic Digoxin-Associated ... Arrhythmias • ... Complete Heart Block ... Tachycardia with 2:1 AV Block ... #ekg #electrocardiogram
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
first-degree AV block ... Complete heart block ... sino-atrial (SA) block ... Diagnosis #Cardiology #EKG ... #ECG #Digoxin #
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
Interval and Pro-Arrhythmic ... Bundle Branch Block ... Bundle Branch Block ... JTInterval #QTc #electrocardiogram ... pathophysiology #ekg
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- w/ variable block ... (3) SA node block ... rhythms (5) AV block ... - Proximal AV block ... QRS - Distal AV block
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
Phasic Sinus Arrhythmia ... presence of AV block ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
Phasic Sinus Arrhythmia ... presence of AV block ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Atrial Fibrillation (A-Fib) Summary

Symptoms:
• Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

Why?
Cardiac:
	• Valvular heart
Common Sustained Arrhythmia ... bundle branch block ... control with early Afib ... atrial thrombus • Digoxin ... propafenone with β-blocker
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Waves/Fibrillary = afib ... Interval: • 1° Block ... >200ms • 2° Block ... loss of P • 2° Block ... • 3° Complete Block
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Cardiomyopathy • Inherited arrhythmia ... Bundle branch block ... Substances • Digoxin ... 300 = NSVT EKG ... tachycardia • Sinus arrhythmia
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
with variable block ... atrioventricular block ... supraventricular or ventricular ... tachycardia • Ventricular ... /Afib/WPW) • Loss