I'm a bit worried about my recent ECG results showing sinus bradycardia and incomplete RBBB. Can you help me understand what these terms mean? I've been feeling a bit more tired than usual lately; could this have anything to do with it? Should I be looking into more tests or checkups to make sure everything's alright with my heart? Its just a bit unsettling not knowing what to expect.

Sinus bradycardia is a condition where the heart beats at a slower rate than normal, typically less than 60 beats per minute. It is caused by the sinus node in the heart sending electrical signals at a slower pace. Incomplete right bundle branch block (RBBB) is a condition where there is a delay in the electrical signal conduction in the right bundle branch of the heart. Symptoms of sinus bradycardia may include dizziness, fatigue, lightheadedness, confusion, shortness of breath, and chest pain. Incomplete RBBB may not cause any symptoms on its own, but it can be associated with underlying heart conditions. Further tests that may be required for sinus bradycardia and incomplete RBBB include an electrocardiogram (ECG) to confirm the diagnosis, a Holter monitor to monitor the heart's electrical activity over a period of time, an echocardiogram to assess the heart's structure and function, and possibly a stress test to evaluate the heart's response to physical activity. For sinus bradycardia, if symptoms are severe or if the heart rate drops too low, a medication like Atropine or Isoproterenol may be prescribed. In cases where bradycardia is persistent and symptomatic, a pacemaker implantation may be necessary. For incomplete RBBB, treatment is usually focused on managing any underlying heart conditions that may be causing the conduction delay. Medications like beta-blockers or calcium channel blockers may be prescribed to help regulate the heart's electrical activity. Remember, it is important to follow up with a healthcare provider for proper evaluation and management of these conditions.