81 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Classification Class ... Widens QRS complex Class ... • Slows sinus rate ... • Slow sinus rate ... #cardiology #pharmacology
Tetralogy of Falot on Chest X-Ray
Tetralogy of Falot comprises four defects -
1. Ventricular septal defect (VSD)
2.
caused the upturned cardiac ... the most common cardiac ... #Chest #XRay #CXR ... #clinical #radiology ... peds #pediatrics #cardiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
0 to decrease rate ... inotropy) ACCP Cardiology ... Vaughan #Williams #Pharmacology ... #pathophysiology ... #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... Summary Cardiac ... inotropy) ACCP Cardiology ... #pathophysiology ... #phases #cardiology
Cor Triatriatum on Cardiac MRI

- Dr. Anthon Fuisz, MD
@DrFuisz

Cor Triatriatum (or triatrial heart) is a congenital
Cor Triatriatum ... on Cardiac MRI ... MD @DrFuisz Cor ... sinistrum) or right ... Clinical #Congenital #Cardiology
Atrial Fibrillation Overview

Symptoms:
Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

1. Why?
Cardiac:
• Valvular heart disease
•
Palpitations, light-headedness ... Cardiac: • Valvular ... Rate Control • ... #Fibrillation #Cardiology
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
affecting the cardiac ... #Pathophys #Pharmacology ... #Cardiology #Antiarrhythmics ... #Classes #Effect
Cardiac incisura
Click image to enlarge.
On the right side of the chest the lung will lie against
Cardiac incisura ... On the right side ... This causes a density ... #Clinical #Radiology ... #CXR #Lateral #
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
share the same pathophysiology ... prior to growth plate ... • Other rare causes ... Cardiovascular disease: • Cardiac ... endocrinology #pathophysiology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... , dyspnea, +/- CXR ... proliferation rate ... lethargy, hematuria, cardiac ... with tetany or cardiac