Complete right bundle branch block is usually asymptomatic and has no specific drug.
Complete right bundle branch block (RBBB) is due to an interruption of normal electrical activity in the Hirshhorn-Purkinje system and an alteration in the normal sequence of excitation, followed by the typical ECG changes of widening of the QRS waves and a change in the direction of the R- and S-wave vectors. It is not curable regardless of what is taken and does not require further diagnostic evaluation, pacemaker implantation or other treatment.
However, patients who experience syncope may require pacemaker implantation, especially if accompanied by other conduction blocks, such as third- or second-degree type II AV block.
In patients with new-onset RBBB, a careful history should be taken, focusing on problems that may be causing right ventricular strain, such as pulmonary hypertension, obstructive sleep apnea, and pulmonary embolism; if pulmonary disease is suspected to be affecting the right ventricle, further echocardiographic evaluation should be performed, and specific treatment should be prescribed.