Hi, other than the incomplete right bundle branch block, your EKG values are otherwise normal. Right bundle branch block is a very common phenomenon in healthy persons. Sinus rhythm is the name given to the normal rhythm of the heart where electrical stimuli are initiated in the SA node, and are then conducted through the AV node to the ventricle through the bundle of His, where it becomes divided into the left bundle branch and the right bundle branch. So that your ventricles contract at a similar rate, these signals must be equal. In persons with bundle branch block, there is delay in one of the signals which causes the left and right ventricle to contract at slightly different times. But this does not produce significant symptoms and may not need further investigations. The heart murmur needs to be fully evaluated with an echocardiogram. It could be a flow murmur, which could be innocent or a leaky valve murmur. If it a leaky valve murmur, there could be different clinical outcomes. So, please discuss this with your doctor am sure he will provide further assistance. Regards.