25 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Caused by atrial ... dissociation + retrograde atrial ... activation from SVT (e.g ... 2LmUODZ #Cannon #AWaves ... #diagnosis #cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
pulmonary disease or CHF ... Treat underlying cause ... Treat underlying cause ... Treatment #management #cardiology ... #algorithm
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
nodal conduction Uses ... and atrial flutter ... Digoxin effect on ECG ... or biphasic T waves ... #Cardiology #Digitalis
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... also a result of atrial ... • Dominant R Wave ... in relation to ECG ... AcutePE #diagnosis #cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
In AVNRT, the atria ... EKG of the same ... to diagnose the case ... #Cannon #Awaves ... PhysicalExam #JVP #Cardiology
Pulse Abnormalities - Differential Diagnosis Algorithm
Unequal/DeIayed:
 • Obstructive arterial disease (ie. Atherosclerosis)
 • Aortic dissection
 •
Differential Diagnosis Algorithm ... of Asthma • Hypovolemic ... Abnormalities #Disorders #Cardiology ... Differential #Diagnosis #Algorithm ... #causes
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... 3 different P waves ... 200ms from longer pause ... bradyarrhythmia #ECG ... electrocardiogram #cardiology
Krabbe Disease 

Check out this interesting case of Krabbe disease, a rare genetic leukodystrophy. Diagnosis was
this interesting case ... Diagnosis was made by radiology ... deposition) • Dec NAA ... , inc Cho Tx: ... MRI #Clinical #Radiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
I Heart Block (aka ... non-conducted P wave ... P and QRS • Atrial ... electrocardiogram #ecg ... #cardiology
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Premature atrial ... depolarizes the atria ... - In most case ... ECG usually shows ... Pathophysiology #cardiology