13 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... 3 different P wave ... • Oxygen • Treatment ... Tachycardia #MAT #Cardiology ... #EKG #Management
Major electrocardiogram findings induced by left ventricular hypertrophy (LVH)
An increase in left ventricular mass augments the
depressions and T wave ... subendocardial ischemia ... delay or actual atrial ... #EKG #Diagnosis ... #Cardiology #Electrocardiogram
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
- hyperacute T waves ... than QRS - deWinter ... T waves - starts ... stenosis - U wave ... electrocardiogram #cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
J point • De Winter ... symmetrical T-waves ... deviation) • Acute ischemia ... #EKG #diagnosis ... #differential #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(3) SVTs - atrial ... 3 different P waves ... Distal AV block - ventricular ... #EKG #diagnosis ... electrocardiogram #cardiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Brady Management ... Non-conducted P waves ... P and QRS • Atrial ... #cardiology
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
300 = NSVT EKG ... No associated P-wave ... , and the T-wave ... more intensive treatment ... #differential #cardiology
External Ventricular Drains (EVDs) & ICP waveform interpretation
An EVD is a temporary closed sterile system that
Loss of discreet waves ... called Lundberg waves ... • LUNDBERG A WAVES ... • LUNDBERG B WAVES ... • LUNDBERG C WAVES
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
200 msec) • P wave ... intervals until a P wave ... (ventricular complex ... completely absent, P waves ... independently of the atria
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
predictor of recurrent ischemic ... overdose: Prominent R wave ... prominent terminal R wave ... Differentiating ventricular ... #differential #cardiology