A 66-year-old woman presented to our emergency department with acute onset of chest pain and dyspnea that had started 6 h earlier.  BP = 120/70 mm Hg, HR=113 beats/min, RR 26/min.  O2 saturation 92% in room air. She had a coronary angiography the day before arrival. Twelve lead ECG and Right-sided ECG and Angiography shots of RCA are shown.

What is the most likely diagnosis?

A 60 y/o lady came to ED with dizziness and pre-syncope. She had history of CABG+MVR+TV reapir. 

Two sets of ECG shown

What is the best treatment?

A 37-year-old female with an earlier diagnosis of epilepsy since childhood and at the age of 3 was made on the basis of her clinical manifestation of a tonic-clonic seizure and syncope. She was treated with carbamazepine for a long time. In addition to epilepsy, the neurologist has also suggested sensorineural deafness for the patient. The patient has been referred by a neurologist for cardiac evaluation due to frequent syncope.

What is the best next plan?

70 y/o man with history of COPD & CHF came to ED complaining of palpitation. ECG is shown:

What is the rhythm?

A 42 y/o male patient with history of atypical chest pain underwent coronary angiography due to positive ETT.

One view from RCA is shown below.

What do you think about the branch that is marked in the picture?

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

Which diagnosis is NOT probable?

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?

 You were on an on-call duty. The emergency department nurse paged you because of cardiac arrest at ED. The ECG of patient at arrival is shown:

Which one of the following statement is the most suitable diagnosis for this ECG?

Below is the 12-lead ECG of a patient who underwent EPS. Prior to this tracing, we were attempting to capture the "His" signal."

Which statement is wrong?

Below you can find the EP tracing of a patient with narrow complex tachycardia.

Which one is not present in the tracing?

A 72 years old lady with recurrent palpitation, ECG during palpitation is shown:

What is the most probable diagnosis?

A 57-year-old gentleman with a history of NICMP ( EF:20%) underwent ICD implantation three years ago due to episodes of VT and came to our ED with a chief complaint of multiple episodes of ICD Shock.

Below are four shots of his arrhythmia episode:

What is the diagnosis?

A 75 y/o lady underwent coronary angiography. she had a history of pacemaker implantation 10 years ago. A shot of her angiography is shown:

Can you guess the kind of pacemaker lead?

This ventriculogram + aortogram belongs to a 36 Y/O  lady with recent shortness of breath and worsening dyspnea of exertion.

Which statement goes true for this patient?

An 80 year old asymptomatic lady came with below ECG:

What is your diagnosis?

A middle-aged patient with no structural heart disease came to ED with syncope. ECG is shown.

Based on 12 lead ECG what are your diagnosis and plan?

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? 

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 young boy with frequent palpitations, below you can find EP tracing of arrhythmia and also post-pacing interval.

What is the most probable diagnosis?

A 65 years old man with recurrent palpitation, underwent EPS, Two EP tracings are shown:

What is the most probable diagnosis of the Arrhythmia?