The medical period for a low heart rate is bradycardia. Sometimes a low heart rate is defined as below 60 beats per minute, but it would almost certainly make more sense to have low heart rate defined as below 50 beats per minute.
Patients often ask if they have a low heart rate and whether there are a convinced number of beats per minute below which they should be worried. It’s significant to realize however that the significance of a low heart rate is different in every case. Some people can have a heart rate of 40 beats per minute and have no symptoms and no long-term consequences. However in other people this can lead to symptoms and necessitate treatment.
Why Could a Low Heart Rate be bad in Some Situations?
The heart needs to pump out a sure quantity of blood to give the body with the blood it needs to function. The amount of blood pumped is known as cardiac output and is generally defined as liters per minute. Heart rate of course affects this output. In some patients a low heart rate can lead to a low output and reason sign such as dizziness, shortness of breath and fatigue.
Causes of Low Heart Rate
First of all we will talk about things straight affecting the heart tissue and the conduction system called intrinsic disease. Aging is an ordinary reason of slow heart rate, which results from degeneration of the conduction system of the heart. Heart attacks may injure areas of the conduction system also. Conditions that affect many organs of the body such as sarcoid, lupus and others can also affect the conduction system of the heart. Undergoing heart valve surgery such as the TAVR process for aortic stenosis, the mitraclip procedure for mitral regurgitation, mitral valve replacement or mitral valve repair, aortic valve replacement, or other composite heart surgeries may also reason trauma to the conduction system of the heart. Sometimes infection of the heart valves can extend in to the conduction system of the heart also.
Treatment of Low Heart Rate
In patients with confirmed or suspected slow heart rate, the underlying possible reason such as those outlined above need to be evaluated carefully. It’s especially significant to review the medication list carefully and stop any potentially offending agents. Blood tests such as thyroid function studies may be performed.
An EKG is performed to see if there is just a slow heart rate or any evidence of heart block. Sometimes a monitor is worn to see the heart rate over time. Some people with a slow heart rate are not capable to get their heart rate up with exercise known as chronoscopic incompetence; this can be diagnosed with exercise testing. An echocardiogram may be performed to evaluate the heart structure and purpose.
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