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diagnosis electrocardiogram management treatment differential clinical pharmacology stable tachycardia torsadesdepointes antiarrhythmics approach cardiomyopathy cerebral chf class1 classi criticalcare echocardiogram elevation
Torsades de Pointes •Precipitated by drugs that prolong the QT interval •Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... quinidine) •Class IC ... TorsadesDePointes #Diagnosis #Cardiology ... #ECG #EKG
Torsades de Pointes • "Twisting of the pointes" • QRS axis swings from positive to negative direction
Originates from single focus ... that prolong the QT ... quridine) Class IC ... TorsadesDePointes #Diagnosis #Cardiology ... #ECG #EKG
EKG with Cerebral T Waves in Subarachnoid Hemorrhage ECG of a 45-year-old man who suddenly collapsed to
Subarachnoid Hemorrhage ECG ... These ECG changes ... There is a long QT ... #EKG #Electrocardiogram ... Hemorrhage #SAH #Cardiology
Approach to ECGs Check - Age, gender, name - 25mm/s; 10mm/mV - 1mm = 40ms; 0.1 mV Rate
DANGER - Short QT ... : ↑ca - Long QT ... #Approach #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology
Short QT Syndrome Short QT syndrome (SQTS) is a very rare, recently described syndrome in which an
Short QT Syndrome ... interval (QTc < ... in 6 different genes ... Syndrome #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Junctional Rhythms - Junctional rhythm describes an abnormal heart rhythm resulting from impulses coming from a
coming from a locus ... #Cardiology #MedStudent ... #EKG #Junctional ... #Rhythms #Table ... RetrogradeP #Escape #ECGEducator
Class I Antiarrhythmics and their Key Pharmacologic Properties Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer") Class IB
in wide QRS on EKG ... results in prolonged QT ... on EKG • Increasing ... #Pharmacology #Agents ... #Cardiology
Treatment of Stable Narrow-Complex Tachycardia Regular Rhythm: • Attempt vagal maneuvers • Give adenosine 6 milligrams IV
nodal blocking agents ... Control rate (e.g ... Control rate (e.g ... Treatment #management #cardiology ... #algorithm
Treatment of Stable Wide-Complex Tachycardia Regular • If ventricular tachycardia or uncertain rhythm: -
Treatment of Stable ... Avoid AV nodal agents ... (e.g., diltiazem ... Treatment #management #cardiology ... #algorithm
Causes of ST Segment Elevation - Differential Diagnosis Framework STEMI: • Upsloping convex STE: "Pardee's sign" +
and a prolonged QT ... waves - Short QT ... waves • Short QT ... differential #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
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