Final answer:
An artificial pacemaker is typically not needed for asymptomatic bradycardia if the patient's heart rate remains above 50 bpm without significant symptoms. When required, pacemakers assist in maintaining effective heart rhythm and are adaptable to the body's needs during exercise. Treatment focuses on the underlying cause of bradycardia and may include supplemental oxygen or other specific interventions.
Step-by-step explanation:
A pacemaker should not be placed for asymptomatic bradycardia unless there are significant symptoms indicating that the heart is not providing sufficient oxygenated blood to the tissues. Such symptoms include weakness, fatigue, dizziness, fainting, chest discomfort, palpitations, or respiratory distress. It is also important to note that most patients remain asymptomatic as long as the heart rate (HR) remains above 50 beats per minute (bpm). When arrhythmias become chronic and the heart maintains a junctional rhythm originating in the AV node, an artificial pacemaker might be required to provide electrical impulses ensuring effective heart contractions and blood pumping.
These pacemakers can include sensors that detect body motion and breathing to adapt the heart rate during physical activity. Identifying and treating the underlying cause of bradycardia is crucial, which may include issues such as metabolic disorders, thyroid pathologies, electrolyte imbalances, neurological conditions, or medication side effects. In some cases, supplemental oxygen or other interventions like cardioversion might be necessary.