29 results
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
Virtually any arrhythmia ... Shortening of QT ... digitalis #Toxicity #Electrocardiogram ... #ekg #ecg #toxicology ... #cardiology #diagnosis
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... QT via long ST ... #diagnosis #cardiology ... #electrocardiogram ... #differential
Inherited Arrhythmia Syndromes
Entity - Prevalence / Incidence - Diagnosis - Arrhythmic Presentation - Management
 • Long
/ Incidence - Diagnosis ... Management • Long ... QT Syndrome (LQTS ... Heart • Short QT ... #management #table
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... DANGER - Short QT ... QT: "antis and ... #EKG #diagnosis ... #electrocardiogram
Causes of Sudden Cardiac Arrest
Primary Myocardial Processes (> 90%):
 • Acquired structural heart disease: CAD, Most
Causes of Sudden ... /short QT syndromes ... QT syndrome: Drugs ... Arrest #cardiology #differential ... #diagnosis #causes
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Diagnosis Algorithm ... in a setting of long ... QT) • Irregular ... #causes
QTc Prolongation - Medications and Conditions that Prolong QT: From "A to N"
A - Anti-A-rrhythmics
B -
Conditions that Prolong QT ... N" A - Anti-A-rrhythmics ... #differential # ... diagnosis #table ... #QT #mnemonic
ABCDEF Mnemonic for Causes of Drug Induced QT Prolongation

A - Anti-Arrhythmics (amiodarone, sotalol, dofetilide)
B - Anti-Biotics
ABCDEF Mnemonic for Causes ... of Drug Induced QT ... #Pharmacology #Differential ... #Diagnosis #DrugInduced ... #QT #Prolongation
Algorithm for the Management of Ventricular Tachycardia Electrical Storm
ES diagnosed (≥ 3 episodes of VT/ICD therapies
not terminating arrhythmia ... cardioversion Stable ... of reversible causes ... VT • Normal QTc ... • Long QTc (Torsades
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... prolonged PR and QT ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table