9 results
Atrial Fibrillation Overview

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

1. Why?
Cardiac:
• Valvular heart disease
•
Atrial Fibrillation ... Palpitations, light-headedness ... Decompensated HF ... Rate Control • ... #Fibrillation #Cardiology
Atrial Fibrillation (A-Fib) Summary

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

Why?
Cardiac:
	• Valvular heart
Atrial Fibrillation ... Palpitations, light-headedness ... Decompensated HF ... electrical) • Antiarrhythmic ... diagnosis #management #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics ... Pharmacology Summary ... contraction of atrial ... #Pharmacology # ... Classification #Classes #pathophysiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Antiarrhythmics ... inotropy) ACCP Cardiology ... Vaughan #Williams #Pharmacology ... Classification #Classes #pathophysiology ... #cardiology
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
Digoxin Pharmacology ... and Pathophysiology ... Decreased heart rate ... #Pathophysiology ... #cardiology
Ketamine - Anesthesia Pharmacology
Trade Name: Ketamine
Brand Name(s): Ketalar
Drug Type: Induction
Time of Onset: Rapid
Duration of Action: 5
Ketamine - Anesthesia ... Pharmacology Trade ... System - Increases CBF ... output and heart rate ... #Pharmacology #
Dexmedetomidine - Anesthesia Pharmacology
Trade Name: Dexmedetomidine
Brand Name(s): Precedex
Drug Type: Sedation
Time of Onset: 30 minutes
Duration of Action:
Dexmedetomidine - Anesthesia ... Pharmacology Trade ... pathways; decreases CBF ... lowering systemic arterial ... #Pharmacology
Propofol - Anesthesia Pharmacology
Brand Name(s): Diprivan
Drug Type: Induction and Maintenance
Duration of Action: 3 - 8 minutes
Mechanism
Propofol - Anesthesia ... Pharmacology Brand ... results in decreased CBF ... Cardiovascular: arterial ... #Pharmacology #
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
complications from anesthesia ... Mets = Climbing a flight ... disease b) CHF ... one post op Cardiology ... CARP, DECREASE V trials