A middle-aged man with a history of accessory pathway ablation came to our clinic with chief complaint of recurrent palpitations.
(ECG:1-2)
He was scheduled for EP study, and the accessory pathway was successfully ablated.
The day after, he was complaining of pleuritic chest pain.(ECG :3)

Bedside echo revealed mild pericardial effusion.

which statement is not correct?

 A 24-year-old patient with LVEF=30%, DOE FC2, No palpitations. below you can find the resting ECG. 

What is your plan?

A 46 years old lady referred for evaluation of wide complex tachycardia.

Both ECG in Arrhythmia and sinus rhythm are given:

What is your most probable diagnosis?

A male patient aged 68 years, with a non-recorded history of percutaneous coronary intervention (PCI), arrived at the emergency department complaining of chest pain that had begun a few hours prior. Following an ECG recording, a sudden cardiac arrest occurred, prompting immediate cardiopulmonary resuscitation (CPR) initiation involving chest compressions. The patient was immediately monitored and found to have ventricular fibrillation (VF) rhythm and a (DC) shock of 200 joules was administered, resulting in the restoration of sinus rhythm.

Based on the (ECG) obtained prior to the occurrence of cardiac arrest, and which is presented below, what would be the most appropriate course of action?

Below You can find an EP tracing  AFTER the ablation of a patient with orthodromic AVRT.

What is your interpretation?

A 80 years old woman came to ED with Dizziness and Nausea.

Past Medical Hx : DM,HTN,CKD,CVA

ECG is shown:

What is your best diagnosis and treatment for this case ?

A 68 years old lady underwent CRT-D implantation. Biventricular pacing is could not be achieved after implantation Fluoroscopy and chest X-Ray of the patient are given. ECG after implant also given:

What is wrong with the device?

A 72_years_old female is referred to ED with epigastric pain, nausea and vomiting, confusion, general weakness, and blurred vision. She does not know her past medical history and the medication she takes.

ECG is shown:

What is your next preferred step for this patient?

A 65 years old man underwent a procedure,  ECG before and after the procedure are given:

Regarding ECG before and after, guess what procedure done for the patient.

A young lady with palpitations. ECG of the arrhythmia is presented below.

Which diagnosis is NOT probable?

A young man experiencing palpitations and presyncope in the ER was treated with Procainamide. See his ECGs below:

Which statement about his EP procedure is TRUE?

A 28 years old man with preexcitation and episodes of palpitations. ECG is shown below:

Regarding to accessory pathway location, what procedure related complication does not threat the patient?

A 64-year-old lady came to your clinic with the chief complaint of palpitation. The 24-hour ECG Holter is shown below:

What's the  accurate diagnosis for the WCT revealed in ECG holter?

A middle-aged lady with frequent paroxysmal palpitations, EP tracing is shown. (proximal CS is paced)

Which statement is FALSE? 

A 42-year-old man with frequent VTach underwent EPS and ablation. Below you can find LV gram before ablation.

which statement is FALSE: 

54 years old woman was referred for electrophysiology study, due to multiple episodes of sudden palpitations. The arrhythmia was induced via atrial burst pacing.

Below you can find tracings of arrhythmia.

Which diagnosis is least possible?

A female patient aged 53 years, with a medical history of aortic valve replacement (AVR), mitral valve replacement (MVR), and tricuspid valve repair (TVr) five years ago, presented at the medical facility without any symptoms but with a prolonged withdrawal from warfarin for several months. The patient was admitted, and heparin therapy was initiated along with a transthoracic Doppler echocardiography (TDI TTE) examination and fluoroscopy. 

Based on the results obtained from the TDI TTE and flouroscopy what do you consider the most appropriate course of action?

A 32 y/o young man with congenital heart disease admitted to hospital for surgery. ECG is shown:

What is your best diagnosis according to ECG?

A middle-aged gentleman experiencing palpitations has undergone a Holter ECG, revealing frequent atrial tachycardia and a notable prevalence of frequent  PVC (27%). He was on beta-blocker with LVEF=35% Included below are two electrocardiograms (ECGs).

What is your plan?

A 58 years old man with several episodes of syncope once in supine position. Baseline ECG showed RBBB and LAHB (bifascicular block). LVEF=55%, EPS done. EP tracing is shown:

What is the tracing interpretation and next plan?