Bradycardia A heart rate that is too slow is referred to as a condition known bradycardia. In some of the cases, it may seem like the heart is skipping a beat from time to time. The heart rhythm of well-trained athletes can be very slow without any prior health problem as their hearts are more efficient than the hearts of nonathletes. They are able to pump the same amount of blood into the body with fewer heartbeats. Bradycardia can be a severe health issue, if the heart rate fails to supply the body with the needed blood and oxygen. In some types of bradycardia, the blood supply is sufficient at rest, but the heart rate isnÂ´t able to adapt to situations of physical or emotional stress. This failure to adapt the heart rate is known as chronotropic incompetence.
What causes Bradycardia? Diseases, injuries or scar tissue can cause problem to the heartâ€™s natural pacemaker, the sinus node, causing the heartbeat to slowdown. This disorder of the impulse generating system is called sick-sinus-syndrome. In sick-sinus syndrome, bradycardia and tachycardia (heart beat which is too fast) may alternate, especially in the atria, or upper chambers of the heart. If the heart rate doesnÂ´t accelerate in stressful situations because of chronotropic incompetence, this is also generally a consequence of a damaged sinus node. Another potential cause of bradycardia is a disorder of the impulse conduction system, e.g., so-called heart block or atrioventricular block. In an atrioventricular block, the impulse conduction between atrium and ventricle is delayed or blocked, resulting in a heartbeat which too slow. Risk factors for bradycardia increase with age and coronary artery disease progression.
How is Bradycardia diagnosed? The physician makes a diagnosis on the basis of the patient´s symptoms, the findings of a physical exam and the results of an electrocardiogram. The ECG measures the heart’s activity and is used to diagnose episodes of bradycardia. In case of doubt or if the safety of the patient requires it, long-term monitoring of the heart’s activity may be indicated. If the findings of a long-term ECG (Holter Monitoring) are not sufficient, the implant of a subcutaneous cardiac monitor may be useful to monitor the heart over a longer period of time.
How is Bradycardia diagnosed?
The procedure to implant this small device is ambulatory and very short. BioMonitor 2 enables continuous remote monitoring of the heartâ€™s activity. The physician is able to detect whether the patient suffers from an arrhythmia and to identify causes for as yet undiagnosable fainting (syncope).
What are the symptoms of Bradycardia? Patients with chronic bradycardia complain of decreasing strength and endurance, poor concentration, temporary disorientation and dizziness. Dizziness, the feeling of being near a blackout and even fainting (syncope) may occur suddenly.
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Bradycardia is a condition that is characterized by a heart rate that is too slow.