15 results
Wolff-Parkinson-White (WPW)
- Orthodromic AVRT: Narrow complex, most common 
- Antidromic AVRT: wide complex because goes through
Wolff-Parkinson-White (WPW ... WolffParkinsonWhite #WPW ... #Cardiology #ECG ... #EKG #Electrocardiogram ... #Clinical #Diagnosis
Complete (3rd Degree) Heart Block on ECG

ECG of a man brought to the ER by paramedics
Complete (3rd Degree ... ) Heart Block on ... @EM_RESUS #Complete ... #EKG #Electrocardiogram ... #Cardiology #Clinical
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
upstroke of QRS complex ... ) 2 Wide QRS complex ... #Cardiology #ECG ... #EKG #Electrocardiogram ... #Clinical #Diagnosis
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
) - HiPR: AV block ... ectopic atrial pacemaker ... leads rsr'), V-pacemaker ... #electrocardiogram ... #cardiology #interpretation
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
by a junctional pacemaker ... an infra-Hisian pacemaker ... #Complete #cardiology ... #ekg #ecg #diagnosis ... #electrocardiogram
66 yo with syncope - Ventricular Tachycardia

This ECG shows a wide-complex tachycardia in a right bundle
shows a wide-complex ... bundle branch block ... VentricularTachycardia #Clinical ... #Cardiology #ECG ... #EKG #Electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... abberancy - N B Afib + WPW ... - ventricular pacemaker ... #electrocardiogram ... #cardiology #differential
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
intervening QRS complex ... presence of AV block ... Sinus #Arrhythmia #cardiology ... #ecg #electrocardiogram ... #variants #clinical
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Treatment: Pacemaker ... 3rd Degree, Complete ... • Treatment: Pacemaker ... #electrocardiogram ... #ecg #cardiology
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
interval on the electrocardiogram ... (ECG) on consecutive ... 'dropped' QRS complex ... #Clinical #EM #IM ... #Cardiology #MedStudent