system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
30-year-old male presents to the Emergency depament with complaint of palpitations. On ECG, irregularly irregular rhythm with broad complex tachycardia is seen. He is haemodynamically stable. Which pharmacotherapy is the best initial management option, if DC cardioversion is not available?
assistant
The correct answer is  This is the case of Pre-excited Atrial fibrillation-Stable patient-Rx-Flecainide given Pre-excited Atrial fibrillation Due to accessory pathway -Slowing AVN conduction without slowing AP conduction - facilitate AP conduction- Rapidly | ventricular rate. ECG- Irregularly irregular rhythm Broad complex bizarre QRS Rx o C/I - AV nodal blocking agents - verapamil, diltiazem, beta blockers, adenosine, amiodarone In stable patients - Class I antiarrhythmic drugs (Procainamide, Flecainide, Propafenone) should be used In Unstable patients - TOC - Immediate DC cardioversion