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Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
type of cardiac arrhythmia ... The arrhythmias ... commonly seen are sinus ... Complete heart block ... #Diagnosis #Cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Diagnosis for Arrhythmias ... • SA node: Sinus ... node: AV re-entrant ... Differential #Diagnosis #Causes ... #cardiology
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... - Regular: • Sinus ... nodal reentrant ... tachycardia • AV ... #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
Sinus Arrhythmia ... the presence of AV ... Sinus #Arrhythmia ... #cardiology #diagnosis ... #variants #clinical
Ventriculophasic Sinus Arrhythmia - ECG Diagnosis
 • The P to P interval encompassing a QRS complex
Arrhythmia - ECG ... encompassing a QRS complex ... intervening QRS complex ... the presence of AV ... #Arrhythmia #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
Sinus Arrhythmia ... the presence of AV ... Sinus #Arrhythmia ... #cardiology #diagnosis ... #variants #clinical
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... • SA Block • AV ... with Variable AV ... tachyarrhythmias #Cardiology ... Diagnosis #Algorithm #causes
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- In most case ... hidden in the QRS complex ... ECG usually shows ... regular narrow complex ... Pathophysiology #cardiology
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... Adrenergic Drive: • Sinus ... finding) • Atrial Arrhythmia ... or Complete RBBB ... in relation to ECG
Ventriculophasic Sinus Arrhythmia on EKG

PP intervals which contain a QRS complex are shorter than those which
Ventriculophasic Sinus ... Arrhythmia on EKG ... contain a QRS complex ... #Arrhythmia #EKG ... #cardiology #clinical