Skip to main content

MCQ 5: El-Sherif sign

Q. El-Sherif sign is?
A. rSR complex in lateral chest leads
B. Persistent ST elevation in anterior leads in myocardial infarction
C. PR prolongation in acute rheumatic fever
D. Delta wave in WPW syndrome


Answer: A

Explanation:
A characteristic rsR′ pattern or its variants (rSr′ or rSR′) with normal or prolonged QRS duration in left surface leads including the apex lead and the orthogonal scalar X lead may be seen in patients with coronary heart disease and left ventricular aneurysm. This was first described by El-Sherif in 1970 hence known as El-Sherif sign.

 Reference:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC487350/
Labels:

Comments

Post a Comment

Popular posts from this blog

ECG Spotter

What is the diagnosis? Click the button below to view answer: Show Answer
Post a Comment
Read more

MCQ

 Cardiology MCQ Q. Which of the following leads is not an inferior lead in ECG? A. Lead II B. Lead III C. Lead aVF D. Lead aVR Click the button below to view answer Show answer Correct answer is option D. Lead aVR
Post a Comment
Read more

ST segment and T wave changes

What is the cause of ST changes and T wave inversions in this ECG? Should the patient be taken to Cath lab for coronary angiography? Show Answer These ST segment and T wave changes are secondary to left ventricular hypertrophy. There are classical features of left ventricular hypertrophy in this ECG which should not be missed. Hence, if the patient doesn't have any other features which suggest ischemia, then he should undergo evaluation for cause of left ventricular hypertrophy. The most common cause for left ventricular hypertrophy is hypertension.
Post a Comment
Read more