A 38 years old woman with history of valve replacement surgery (7 months ago) came to ER with DOE FC II from 3 weeks ago. Admission INR was 2.4.

She underwent fluoroscopy to evaluate the valve function. 

Her vital signs were unremarkable. 

What is the diagnosis and more suitable treatment strategy? 

A 35 y/o man is candidated for ETT for evaluation of his chest pain. His baseline ECG  before ETT was shown:

What is the Rhythm?

Here is a video of a patient in the ICU. The cardiology resident in charge transiently turned off the patient's temporary pacemaker, which caused the patient to go into asystole.

How can this be?

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

Which statement is FALSE? 

A middle-aged lady with frequent palpitations, EP tracings are shown below.

What is the most probable diagnosis?

A 49-year-old physician experiencing frequent palpitations and having undergone an unsuccessful ablation in another hospital. The arrhythmia tracing, programmed RV stimulation, and LV pacing are provided below.

Which statement is TRUE?

17 years old girl, was referred for EP study due to episodes of palpitations. 

bellow you can find tracings of arrhythmia, which was induced during EPS.

What is the most probable diagnosis, and which electrophysiologic phenomena is happening?  

An elderly woman with a history of a dual-chamber permanent pacemaker (PPM) from years ago presented with complaints of dizziness. The accompanying ECG and device tracing are provided for further evaluation.

Given the device tracing, which plan would be more suitable?

A middle-aged patient with wide complex tachycardia presented in ER. A rhythm strip and 12 lead ECG are shown below:

What is your diagnosis?

A young patient came with palpitations and narrow complex tachycardia, 12 lead ECG is shown below:

What is the most probable diagnosis?

A 60 y/o lady, with complaints of recurrent everyday palpitations, 24h ECG Holter revealed several episodes of tachy arrhythmia, LVEF= 40%. One page of holter shown below:

What is the most probable etiology according to arrythmia behavour in ECG Holter?

A young boy underwent EPS for palpitations.EP trace of Ventricular pacing is shown below:

which statement is TRUE?

A 39-year-old man with history of DCM and reduced LVEF (25%), presented with palpitations and frequent PVC on surface ECG and Holter monitoring (PVC Burden: 40%), referred for ablation. EPS was done by 3D NAVX/Precision mapping guide. Initially, Based on surface ECG which was compatible with LV summit origin, mapping was started within CS, the best earliest signal was found in GCV (-42ms). RF applied on aforementioned area, but PVCs did not disappear. So, mapping was done via retrograde trans-aortic approach. After maintaining safe distance from LM,LCX and LAD by coronary angiography and considering correspondent point from epicardial mapping, the best earliest point was found around ILT area (-44ms). RF applied on aforementioned area and PVCs disappeared immediately.

Four fluoroscopic views and surface ECG are shown.

Which of the fluoroscopic views is in favor of catheter ablation position in the ILT (Inter Leaflet Triangle)?

A 58-year-old lady with ICD_VR who presented with diaphragmatic twitching from 4 days ago. In the surface ECG, no capture is seen during the diaphragmatic twitching, but at the same time analysis of the device, the V pace is seen at a rate of 45 beats/min. The lead impedance was also 380 ohms, which has droped by about 250 ohms in the last 4 days. It denies any palpitation, chest pain, dyspnea and ICD shock. What is the most probable diagnosis for this patient?

What is the diagnosis?

A 40 y/o man with narrow complex tachycardia. Both ECG and EP tracing are shown.

What is your diagnosis?

A 52-year-old woman with episodes of syncope underwent a Brugada challenge test, in which she was given 400 mg of oral flecainide. The results of the test are shown below.

What statement is wrong?

A 30 y/o lady with atypical chest pain underwent echocardiography & then candidated for catheterization.

Can you guess the procedure?

A 40 y/o woman came to your clinic for evaluation of chest pain. She claimed that she suffer from exertional chest pain for many years.

what is your diagnosis?

Below you can find the movie of 3D mapping of atrial flutter performed with Ensite Precision. 

Which statement is NOT correct?

A 49-year-old man with a history of hypertension and smoking presented to the emergency department complaining of chest pain that started approximately 8 hours ago. His vital signs were stable. ECG is shown below.

Which statement is true?