Holter monitor for kids

When symptoms such as dizziness, fainting, low blood pressure, prolonged fatigue, or palpitations continue to occur without a definitive diagnosis obtained with a resting EKG, your child's physician may request an EKG tracing to be run over a long period of time. Certain arrhythmias (a fast, slow, or irregular heartbeat) which can cause the symptoms noted above may occur only sporadically, or may occur only under certain conditions, such as stress. Arrhythmias of this type are difficult to obtain on an EKG tracing that only runs for a few minutes.

A prolonged type of EKG tracing, called a Holter monitor test, provides the physician a better opportunity to capture any abnormal heartbeats or rhythms that may be causing your child's symptoms.

What is a Holter monitor?

The Holter monitor test is used to record your child's EKG tracing continuously for a period of 24 hours or longer. You will receive instructions on how long your child will wear the recorder (usually 24 hours, but sometimes longer), how to keep a diary of your child's activities and symptoms during the test, and personal care/activity instructions.

Cardiac event monitoring is very similar to the Holter monitor test and is often performed for the same reasons. With a cardiac event monitor, your child wears EKG electrode patches on his/her chest, and the electrodes are connected by wire leads to a recording device. However, unlike the Holter monitor, which records continuously throughout the testing period of 24 to 48 hours, the event monitor does not record until your child feels symptoms and you or your child trigger the monitor to record the EKG tracing at that time.

When your child feels one or more symptoms, such as chest pain, dizziness, or palpitations, one of you will push a button on the event monitor recorder. Some monitors have a feature called "memory loop recording," in which the monitor can include a recording of a short period of time prior to the moment you triggered the recording and afterwards. This feature can help your child's physician determine more details about the possible change in your child's EKG at the time the symptoms started, and what was happening with your child's EKG just before you or your child triggered the recorder. Other monitors, called "post-event recorders," simply start recording the EKG from the moment you trigger it.

After symptoms are experienced and recorded, you will send the recording to your child's physician or to a central monitoring center. You will also keep a diary of your child's symptoms and corresponding activities, just as with the Holter monitoring procedure.

Why is Holter or cardiac event monitoring used?

Some reasons for your child's physician to request a Holter monitor procedure include, but are not limited to, the following:

  • To evaluate chest pain
  • To evaluate other signs and symptoms which may be heart-related, such as fatigue, shortness of breath, dizziness, or fainting
  • To help identify irregular beats
  • To further evaluate arrhythmias noted on a resting EKG

How is the Holter monitor procedure performed?

The following steps provide information regarding how a Holter monitor procedure is performed:

  • EKG electrodes will be placed on your child's chest, and the EKG monitor will be attached to the electrodes with lead wires.
  • The EKG monitor is small and portable - about the size of a paperback book. The Holter monitor may have a shoulder strap so that the monitor box may be worn over the shoulder like a shoulder bag, or it may clip to a belt or pocket.
  • You will be given instructions regarding:
    • How to keep the electrodes attached to your child's skin
    • How to check the Holter monitor for problems
    • When to call the physician's office for help
    • Keeping the electrodes and monitor dry by not allowing your child to take a shower or tub bath (a sponge bath is usually allowed) or go swimming
    • Avoiding situations where your child may perspire excessively, causing the leads to detach
    • How to keep a diary during the procedure, noting the date and time of day of any changes in activity and symptoms your child experiences
    • Avoiding using electrical appliances such as electric razors, hair dryers, or electric toothbrushes near your child so that the EKG signal will not receive electrical interference on the recording tape. If these appliances must be used near your child, you should note it in the diary.
    • Avoiding magnets, metal detectors, areas with high-voltage electrical wires, and electric blankets during the procedure, since they can also create electrical interference on the recording tape.
  • Once your child has been hooked up to the Holter monitor and you have been given instructions, he/she will be allowed to return to his/her usual activities, such as playing and going to school, unless the physician instructs you otherwise.
  • You will be given a telephone number to call in case one or more of the electrodes comes off or if the monitor starts beeping.
  • Be sure to write down the date and time of any symptoms your child experiences in the diary, as well as what your child was doing at the time and any unusual circumstances that were also present.
  • At the end of the procedure, you and your child will return to the physician's office to have the electrodes removed and the monitor discontinued. Alternatively, you may be instructed to do this yourself at a certain time and date.

Depending on the results of the Holter monitor test, additional assessments or procedures may be scheduled to gather further diagnostic information.

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