What is the rhythm?


The most probable diagnosis on those rhythm strips are as following:

a) Sinus rhythm with wide QRS complexes.
b) Atrial fibrilation with wide QRS complexes.
c) PSVT (paroxysmal supraventricular tachycardia).
d) WCT (most probable Ventricular tachycardia).
e) Escape junctional rhythm

Comments

Post a Comment

Popular posts from this blog

Sinus tachycardia vs Sinus bradycardia vs Sinus arrhythmia

Image
A) Sinus tachycardia is sinus rhythm with heart rate over 100/min. This rhythm is regular with normal appearance P wave and normal duration PR intervals. QRS complexes can be narrow or wide. B) Sinus bradycardia is sinus rhythm with heart rate bellow 60/min. This rhythm is regular with normal appearance P wave and normal duration PR intervals. QRS complexes can be narrow or wide. C) Sinus arrhythmia is sinus rhythm with variation of P-P (R-R) intervals at least 120ms. P wave has normal appearance and normal PR intervals. QRS complexes can be narrow or wide.
Read more

First degree vs Second degree vs Third degree AV Block

Image
Name this Blocks A. First degree AVB is present in this rhythm strip. Every P wave is conducted, but with prolonged PR interval (~320ms). B. Second degree AVB type 1 (Mobitz I) is present in this rhythm strip. We can see progressive prolongation of the PR interval culminating in a non-conducted P wave (3d and 7d P wave are non-conducted). C. Second degree AVB type 2:1 is present in this rhythm strip. We can see that there are 2P waves for every QRS complex. We don’t have two P wave conducted in a row so can’t conclude if PR interval is prolonged (Mobitz I) or constant (Mobitz II). D. High degree AVB (3:1) is present in this rhythm strip. We can see that just every 3d P wave is conducted (with constant PR interval) and two out of every three P wave are blocked. E. High degree AVB (4:1) is present in this rhythm strip. We can see that just every 4d P wave is conducted (with constant PR interval) and three out of every four wave are blocked. F. Third degree AVB is present i
Read more

RBBB vs LBBB vs IVCD

Image
This ECG shows: a) RBBB b) LBBB c) IVCD This ECG present typical changes for RBBB. The RBBB criteria fulfilled in this case are: -           Supraventricular rhythm. -           Wide QRS complex (>120 ms) with rsR’ morphology. -           Slurred S wave in V6. -           T wave discordance in precordial leads.   The most common cause of RBBB are: ASD, COPD, right ventricular hypertrophy, pulmonary thromboemboli, ischaemic heart disease, hypertension, cardiomyopathy.
Read more