54 years old lady with history of dual chamber pacemaker implantation presented by dizziness and syncope.

look at ECG, Chest Xray , and device programming:

According to findings what is the best explanation for device malfunction?

55 years old woman with history of episodic atrial fibrillation and severe mitral regurgitation who was on warfarin from 1 year ago, underwent Mitral Valve Replacement (MVR) 4 days ago. She was transferred to post-ICU ward in sinus rhythm but the palpitation suddenly begun (below ECG). 

Her vital signs were as follows: BP 95/60, No fever, Acceptable Respiratory Rate, Heart Rate 130.  

Bed-side Echocardiography showed moderate Left Ventricle (LV) dysfunction (EF 35-40%), mild Right Ventricle (RV) dysfunction, Good MV bileaflet motion and dilated Left atrium (LA).

What is your diagnosis and reasonable therapeutic approach? 

A 40-year-old man complained of shortness of breath and orthopnea during the last week. He had no usual cardiovascular risk factors, no history of medication, supplement, or drug use, and no history of recent viral infection.

The patient's appearance is significantly different from other family members (e.g. he is taller than his brothers.)

In the electrocardiogram, sinus tachycardia was seen.

In the echocardiography, EF=20% was reported and there was no evidence of LVH.

In the coronary angiography, there were no coronary lesions.

Based on his physical appearance, Which finding of the patient seems incorrect?

a 65-year-old  man with a history of multivessel PCI came to our ED with the chief complaint of typical Chest pain that started 16 hours ago, his ECG is shown below.

What is the best next step?

A middle-aged lady with palpitations underwent EPS, below you can see the EP tracings:

What is the most probable diagnosis?

A 55 years old man underwent eventful CABG 2 days ago. His post op BP was low and needed inotrope and mechanical support. He complained from abdominal pain and dyspnea. Post-op CXR is as follows

What is most important abnormality in CXR? 

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?

45-year-old patient with Frequent PVC (30%) with LVEF=40%, underwent EPS ablation, below you can find Fleuoro shot of the ablation procedure :

Name the LOCATION of each catheter.

35 years old man with recurrent palpitations, underwent EPS. Two tracings are shown below.

What is the most likely diagnosis?

A young man experiencing palpitations underwent Electrophysiological Study (EPS), revealing the presence of two distinct arrhythmias, as illustrated below:

Which potential diagnosis is considered LESS likely?

A 45 years old electrician with a history of ICD implantation, experienced ICD shock. Below you can find plot diagram and EGM of the event. 

which statement is WRONG?

A 35-year-old man was referred for an electrophysiology study due to multiple episodes of PSVTs. During EPS arrhythmia was easily induced, which you can find below as tracing A. After localizing the best signal, with RF application the retrograde activation of arrhythmia changed (tracing B).

According to tracing A and B, which statement is correct?

A 70-year-old woman with a history of PPM implantation due to CHB one month ago came to our ED with the chief complaint of pleuritic chest pain. ( Mode: DDD, Base Rate: 60)

Her ECG and CXR are shown below :

According to her ECG and CXR, which statement is not true?

 A 52-year-old gentleman reffered for EP study, due to episodic palpitations and wide complex tachycardia requiring cardioversion in ER.

During EPS, the HV interval was  90 msec, and arrhythmia was induced with burst pacing.

Below you can find 12-lead ECG (during tachycardia, sinus rhythm ) and EP tracings.

What is the most probable diagnosis? 

A 31 years old man was admitted to hospital with Non-STEMI. He had no known coronary artery disease (CAD) risk factors, but had a history of prolonged unexplained febrile disease when he was five years old. Coronary angiography performed. Two shots are given below.

What is the most likely etiology?

A middle-aged woman presented to the ER with pre-syncope. Below are the serial ECGs taken in the ED:

Which arrhythmias are seen? 

A 65 years old man admitted for frequent ICD shock, one episode of tracing shown below (movie)

What is the best explanation for the shock?

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 34-year-old man came to our ED with the chief complaint of palpitation, here are two shots from the intracardiac EGM of his EP study :

What is the most probable diagnosis and the mechanism behind turning 2:1 arrhythmia to 1:1? 

70 y/o man with history of coronary artery disease underwent echocardiography . TTE was shown:

Which one of the following was NOT seen on this echocardiography?