Prof. Dr. Johnson Francis

Left atrial ganglionic plexi and AF ablation

Johnson Francis | March 13, 2011

Left atrial ganglionic plexi are new targets of AF ablation. Four major plexi are superior left, inferior left, anterior right and inferior right.

Cardiac Magnetic Resonance imaging

MR angio of femoral and popliteal arteries

Johnson Francis | March 1, 2011

MR angiography of both femoral arteries showing severe disease on both sides with reformation of the vessels lower down as a good sized popliteal arteries.

Cardiology MCQ

Echo Quiz – Cardiology MCQ

Johnson Francis | February 28, 2011

What is the diagnosis? a. Left ventricular thrombus b. Mitral annular calcification c. Mitral valve prolapse d. Mitral stenosis

ECG / Electrophysiology

Bundle branch blocks

Johnson Francis | February 27, 2011

Bundle branch blocks could be RBBB, LBBB, LAHB, LPHB or combinations. Those patterns not conforming to these are IVCD (intraventricular conduction defects).

General Cardiology

Severe aortic stenosis with low transvalvar gradient

Johnson Francis | February 16, 2011

Severe aortic stenosis with low trans valvar gradient could be due to LV dysfunction or a specific subset with normal ejection fraction.

ECG / Electrophysiology

Atrial flutter ECG

Johnson Francis | February 14, 2011

Atrial flutter ECG

ECG / Electrophysiology

WPW syndrome ECG with disappearance of pre-excitation later

Johnson Francis | February 12, 2011

Serial ECGs showing disappearance of WPW syndrome pattern of pre-excitation.

ECG / Electrophysiology

ECG leads V1H to V6H and V1L to V6L

Johnson Francis | February 11, 2011

ECG leads V1H to V6H are recorded one intercostal space above the conventional position, and leads V1L to V6L are recorded one intercostal space below.