Bradycardia is a condition in which a patient experiences a significant decrease in heart rate, reaching 60 beats per minute or no beats. This, normally, is taken as an indication of cardiovascular diseases, as well as as a precedent for an unstable heart attack; this, however, does not mean exactly that a person suffers from coronary heart disease, but would be an important reason to perform a series of detailed medical studies to determine if any are present. It can be a symptom of meningitis, as well as brain lesions.
This sudden failure of the heartbeat is caused by a kind of decompensation present in the sinoatrial nodules, the cardiovascular structure in charge of sending the electrical impulses so that the beats take place. This is similar in size to the heart; It is made up of P cells, Transitional cells and Purkinje cells, as well as collagen fibers. It is importantly related to the autonomic nervous system. In the medical field, this is known as the pacemaker of the heart and, when the failure is registered, the atrioventricular node, similar in structure to the previous one, would take the responsibility of sending the electrical impulses, but much more slowly.
Bradycardia can have a source of damage to the various layers of the heart, blood pressure significantly high or hypertension, infection in the tissues of the heart, obstructive apnea of the sleeping or constant interruption of sleep due to respiratory failure, hypothyroidism, accumulation iron in the organs and medications that control heart processes.
