22 results
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... 200ms from longer pause ... 2ยบ - Mobitz I ... II / Mobitz - , ... bradyarrhythmia #ECG
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 โ€ข Sinus tachycardia
 โ€ข Atrial flutter
Causes of Tachycardia ... Differential Diagnosis Algorithm ... flutter โ€ข AV ... tachycardia โ€ข AV ... #Causes #cardiology
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Block - Mobitz ... Block - Mobitz ... not you have a Mobitz ... independently of the atria ... heartblock #cardiology #ecg
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
- Decreases AV ... nodal conduction Uses ... : - Atrial fibrillation ... and atrial flutter ... Digoxin effect on ECG
Summary of Heart Blocks
1st Degree Heart Block:
 โ€ข Prolonged PR >200ms (5 small squares).
 โ€ข Narrow
. 2nd Degree, Mobitz ... P and QRS โ€ข Atrial ... โ€ข Block in AV ... (block beyond AV ... electrocardiogram #ecg
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 โ€ข Attempt vagal maneuvers
 โ€ข Give adenosine 6 milligrams IV
Control rate with AV ... Control rate (e.g ... Treat underlying cause ... Treat underlying cause ... management #cardiology #algorithm
Cannon A Waves
 โ€ข Caused by atrial contracting against a closed tricuspid valve
 โ€ข Atrioventricular dissociation
Cannon A Waves โ€ข Caused ... by atrial contracting ... , it indicates AV ... dissociation + retrograde atrial ... activation from SVT (e.g
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 โ€ข Sinus Bradycardia
 โ€ข Sick Sinus Syndrome
 โ€ข SA
Differential Diagnosis Algorithm ... โ€ข SA Block โ€ข AV ... with Variable AV ... Differential #Diagnosis #Algorithm ... #causes
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Premature atrial ... pathway back up to atrium ... depolarizes the atria ... - In most case ... ECG usually shows
A wandering atrial pacemaker, (WAP), is an atrial arrhythmia that occurs when the natural cardiac pacemaker
A wandering atrial ... atrioventricular node (AV ... identifiable on ECG ... athletes and rarely causes ... Clinical #MedStudent #EKG