What is a sinus rhythm with a right bundle branch block?

Wiring of heart. Sinus rhythm means that the electrical activity that controls the contraction of the heart, starts in the sinus node. Right bundle branch block means that the right bundle (part of the electrical wiring) does not conduct the impulse which changes the appearance of the ekg. Right bundle branch block as opposed to left bundle branch block is usually benign.

Related Questions

I'm waiting a PFO closure and my ECG showed sinus rhythm with partial right bundle branch block are they the same thing?

No. Incomplete rbbb is the textbook finding in the presence of pfo and is due to right ventricular volume overload over a long time. Irbbb, itself, is harmless, doesn't cause symptoms, is just a marker, and doesn't need treatment. Sinus rhythm is the medical name for normal rhythm. Read more...
Ecg. The pfo is a hole in the heart, the ECG findings are different and not necessarily related to the pfo. The ECG findings are nothing to worry about. Read more...

Would it be possible that a rbbb (right bundle branch block) cause a heart murmur?

No. But there are conditions that can both cause a heart murmur and a rbbb (for example, pulmonic stenosis or an atrial or ventricular septal defect). Read more...
No. A rbbb is a pattern seen in the ECG where the electrical impulse is delay or interrupted as it spread along the heart. Prevalence increase with age. At 80 y/o close to 10% people can have it. Somewhat benign but an evaluation need to be done to r/o heart and lung conditions. Conditions like copd, cad, myocarditis, valvular heart disease, and other structural heart conditions. Read more...