Final answer:
Symptomatic bradycardia without a reversible cause is treated by managing the underlying issue, which may include SA or AV node issues, requiring a pacemaker, or external factors like thyroid problems or beta blocker overuse. Other treatments can involve antiarrhythmic medications or oxygen therapy.
Step-by-step explanation:
Treatment of Symptomatic Bradycardia
Bradycardia is a condition where the resting heart rate (HR) drops below 60 beats per minute (bpm). Treatment for symptomatic bradycardia without a reversible cause typically involves addressing the underlying cause of the slow heart rate. Possible inherent causes include SA or AV node abnormalities, which can necessitate the implantation of a pacemaker if the condition is serious. External causes may range from metabolic disorders, endocrine system pathologies, including thyroid issues, to electrolyte imbalances and neurological disorders. Over-prescription of beta blockers, which reduce HR, can also lead to bradycardia. Treatments, aside from pacemakers, may include medications like antiarrhythmic agents or supplemental oxygen, depending on the cause and severity of the bradycardia.
For patients presenting with significant symptoms from bradycardia, such as weakness, fatigue, dizziness, and chest discomfort, urgent treatment may be required to ensure the heart provides sufficient oxygenated blood to the body's tissues.