Hailey Tran
Heart monitors are devices that can be used to track a patient's heart rate and rhythm for up to a month. They are often used to help diagnose heart issues and can be worn or carried by the patient. Heart monitors can be used in hospitals or at home and can be connected to smartphones or computers to transmit data to healthcare providers. This data can then be reviewed and analysed to detect any abnormalities.
| Characteristics | Values |
|---|---|
| Purpose | To help diagnose heart issues by providing valuable information about the heart's rhythm and rate. |
| Type | Cardiac (Heart) Event Monitor, Holter Monitor, Implanted Heart Device Monitor, Chest-Band Monitor, Smartphone Monitor |
| Duration of Monitoring | Varies depending on the type of monitor and patient's needs, ranging from a few weeks to multi-year options. |
| Placement | On the chest, abdomen, neck, waist, shoulder, or pocket. Can also be implanted under the skin. |
| Connectivity | Wired or wireless connection to a cardiac monitor device, smartphone, or tablet. |
| Data Transmission | Data can be transmitted to a healthcare provider through a phone, computer, or mobile app for review and analysis. |
| Power Source | Battery-powered or wired electricity. |
| Data Collection | Continuously records heart data, including electrical activity, heart rate, and rhythm. |
| Data Analysis | Healthcare providers review data for abnormal heart rhythms and assess the effectiveness of treatments. |
| Patient Instructions | Patients may be instructed to keep a diary of symptoms and activities during monitoring. |
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What You'll Learn
Wearable heart monitors
Chest-band devices are the most accurate as they measure heart rate directly and are less affected by activities such as running or cycling. They use electrical detection to track your heart rate by detecting the electrical activity of the heart through a band that wraps around the chest. The band must be wet or a conductive gel needs to be used where the sensors touch the skin.
Wrist and forearm wearables tend to be very accurate when the wearer is resting or walking, and many are also accurate for running or cycling. However, using your arms for exercise activities can cause inaccurate readings. These devices have light-emitting diodes (LEDs) and sensors that rest against the skin, and the sensor uses LED light to detect the tiny expansions of blood vessels underneath the skin.
Smartwatches and fitness trackers can connect wirelessly to smartphones and computers, allowing users easy access to review their heart rate data. An example is the Apple Watch, which offers accurate heart rate monitoring during workouts or when monitoring your health.
Implanted loop recorders are another type of wearable heart monitor that is implanted under the skin and can monitor heart rhythms for multiple years. Remote monitoring allows these devices to communicate with doctors or clinics, reducing the number of times the patient needs to travel for a check-up. An example is the MyCareLink Heart mobile app, which allows users to use a smartphone or tablet as a monitor, staying connected to the clinic via cellular data or Wi-Fi.
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Implanted heart monitors
An implantable loop recorder (ILR) is a heart-recording device that is implanted in the body under the chest skin. The device helps to identify heart rhythms that can cause problems such as fainting. It is particularly useful if you experience infrequent arrhythmia, as it can record heart rhythm for up to 3 years.
During the implantation procedure, a cardiologist places the small device under your skin, on the chest wall, a few inches below your collarbone. The machine works like an electrocardiogram (ECG), continuously recording electrical signals from your heart.
After the procedure, you will remain in a private room where you can be joined by a family member. You will then discuss the results and any necessary treatment with your physician. Recovery time is typically 30 minutes, and you will be provided with written instructions for your at-home recovery.
Once you get home, you may need to connect a home monitor to transmit data to your healthcare provider. Remote monitoring allows your doctor to manage your heart condition and obtain information from your implanted device as needed. This can be done via Bluetooth-enabled devices and mobile apps, such as the MyCareLink Heart mobile app, which uses cellular data or Wi-Fi to send data to your clinic.
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Remote monitoring
Another option for remote monitoring is the MyCareLink Relay home communicator, which sends data from the heart device directly to the clinic using Wi-Fi or cellular data. This may be a preferable option for patients who do not regularly carry a mobile device, such as a smartphone or tablet.
The MyCareLink Smart monitor is a third alternative, which employs a handheld reader and an app to transmit heart device data to the clinic via a mobile device.
For patients with Medtronic implanted heart devices, the MyCareLink Connect website provides a platform for remote monitoring. This service is accessible via phone or mail, ensuring a continuous connection between patients and their healthcare providers.
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Holter monitors
A Holter monitor is a small, portable device that records your heart's electrical activity for 24 to 48 hours. It is a type of ambulatory electrocardiogram (ECG or EKG) that measures and records your heart's rhythm and rate. It is typically prescribed by a doctor to help diagnose irregular cardiac symptoms, such as arrhythmias (irregular heartbeats), unexplained dizziness, or to ensure that medications are working correctly.
To wear a Holter monitor, you will need to follow the instructions provided by your healthcare provider. Here is a general guide on how to connect and use a Holter monitor:
- Prepare the Area: It is recommended to shower or bathe before putting on the device to ensure the skin is clean. If your monitor comes with cleansing wipes, use them to clean the areas where you will place the sticky electrode pads.
- Attach the Electrodes: Place the adhesive electrodes on your chest and belly (abdomen). Typically, you will need to wear at least two electrodes, with two on either side of your heart, one in front of your heart, and two on the bottom edge of either side of your rib cage. If necessary, your provider may need to shave your chest to ensure the electrodes stay on.
- Connect the Monitor: The Holter monitor will be connected to the electrodes with wires. Secure the leads (wires) to the electrodes according to the instructions. Usually, the leads snap into place on the adhesive pads.
- Position the Monitor: The small monitor box can be worn in several ways, such as over your shoulder like a bag, around your waist, clipped to a belt or pocket, or, for newer devices, attached directly to your chest like a patch.
- Activate the Device: Follow the instructions provided by your doctor or healthcare provider to activate the Holter monitor. Different brands and models may have varying activation methods.
- Keep a Diary: During the monitoring period, it is essential to keep a diary of your activities and any symptoms you experience. Note down symptoms like shortness of breath, skipped or uneven heartbeats, chest pain, dizziness, or fainting. Additionally, push the event button on the monitor whenever you experience a stressful event.
- Keep the Device Dry: Avoid getting the Holter monitor wet during the monitoring period. If you need to shower, try to avoid excessive contact with water and gently dry the sensor and adhesive patches afterward. Do not go swimming or immerse the sensor in water.
- Return the Monitor: After the specified monitoring period, return the device to your cardiologist's office or follow their instructions for returning it. Schedule a follow-up appointment to discuss the results and any necessary treatments.
It is important to note that you should always follow the specific instructions provided by your healthcare provider for wearing and using the Holter monitor. They will guide you through the process and ensure you understand how to properly connect and utilize the device.
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Heart rate monitor accuracy
Heart rate monitors are devices that track your heart rate and pulse rate. They can be highly accurate, depending on the type, and have various benefits and capabilities.
In hospitals, ECG telemetry monitoring is often used to track patients' heart rates. This method has long been considered the "gold standard" for monitoring during cardiac rehabilitation. More recently, electrode-based chest strap monitors have been employed in hospitals and clinical research trials. These chest strap monitors are considered highly accurate, especially when used properly, as they measure heart rate directly, rather than pulse rate.
In terms of wearable heart rate monitors, the accuracy varies. In one study, the Polar H7 chest strap monitor was found to have the best agreement with ECG readings, followed by the Apple Watch, Fitbit Blaze, TomTom Spark, and Garmin Forerunner. The Apple Watch and TomTom Spark were found to be most accurate among wrist-worn monitors, with no statistical difference from ECG readings. However, optically-based wrist-worn monitors often underestimated the true heart rate and were less accurate in younger patients and those taking diuretics.
For those with implanted heart devices, remote monitoring is a convenient way to stay connected with your doctor or clinic. This can be done through smartphone or tablet apps, such as the MyCareLink Heart mobile app, which can communicate directly with your clinic via cellular data or Wi-Fi.
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Frequently asked questions
A heart monitor is a device that can be worn for up to a month to help diagnose heart issues by recording electrical activity and tracking heart rate and rhythm.
Heart monitors are usually connected to electrodes attached to your chest and belly with wires. The monitor box can be worn in a pocket, bag, or clipped to a belt. Newer devices are a single unit that attaches to the chest like a patch.
You should keep a diary of your activities and symptoms during the test. Note when the symptoms happened and what you were doing. For example, note the time and what activity you were doing if you experienced chest pain.
Data from the heart monitor can be sent to your doctor or clinic via a smartphone or tablet using cellular data or Wi-Fi. Some devices use Bluetooth to connect directly to your clinic.
The risks of wearing a heart monitor are minimal and rare. It may be uncomfortable when the sticky electrodes are removed, and they can cause skin irritation or blistering if left on for too long.
