Tag Archives: arrhythmia

Can AliveCor’s Mobile ECG Device Combined With Its Kardia Pro Cloud-Based Platform Replace Standard Long Term Rhythm Monitors?

In March of 2017 AliveCor introduced Kardia Pro, a cloud-based software platform that allows physicians to monitor patients who use the Kardia mobile ECG device.

I have been utilizing the Kardia mobile ECG  device since 2013 with many of my atrial fibrillation (AF)  patients and have  found it be very useful as a personal intermittent long term cardiac monitor. (see here and here)

I signed up for the Kardia Pro service about 3 months ago and all of my patients who purchased Kardia devices prior to March of 2017 have been migrated automatically to Kardia Pro by AliveCor.

Now (post March 2017),  patients who acquire a Kardia device must sign up for the Kardia Pro service at $15 per month to connect with a  physician.

I think this is money well spent and I’ll demonstrate how the service works with a few examples.

Monitoring Patients With Atrial Fibrillation

 I saw a 68 year old man with persistent atrial fibrillation that was first diagnosed at the time of pneumonia in late 2017.

He underwent a cardioversion after recovering from the pneumonia but quickly reverted back to AF. His prior cardiologist offered him the option of repeat cardioversion and long term flecainide therapy for maintenance of normal sinus rhythm (NSR) but he declined.

When I saw him for the first time in the office  a  month ago I  listened to his heart and to my surprise, noted a regular rhythm: an AliveCor recording in the office confirmed he was in NSR. The patient had been unaware of when he was in or out of rhythm

We discussed methods for monitoring his rhythm at this point which include a 24 Holter monitor, a 7 to 14 day Long Term Monitor, a Cardiac Event Monitor and a Mobile Cardiac Outpatient Telemetry device. These devices are helpful and although expensive are often covered by insurance.  They require wearing electrodes or a patch continuously and the results are not immediately available.

I also offered him the option of monitoring his AF using a Kardia device with the recordings connected to me by Kardia Pro.

He purchased the device on his own for $99, downloaded the app for his smartphone and began making recordings.

I enrolled him in my Kardia Pro account and he received an email invitation with a code that he entered which connected his account with mine, allowing me to view all of his recordings as they were made.

When I log into my Kardia Pro account I can now view a graphic display of the recordings he has made with color coding of whether they were considered normal or abnormal by Kardia.

The patient overview page also displays BP information if the patient is utilizing certain Omron devices which work with Kardia.

kardia pro wc monthly

The display shows that after our office visit he maintained NSR for 3 days (green dots) and then intermittently had ECG recordings classified as AF (yellow dots) or unclassified (black).

The more he used the device and got feedback on when he was in or out of rhythm the more he was able to recognize symptoms that were caused by AF.

I can click on any of the dots and six second strips of the full recording are displayed.  In the example below I clicked on 2/27 which has both an unclassified recording (which is atrial flutter) and an AF recording

Clicking on the ECG strips brings up  the full 30 second recording on a page that also allows me to assign my formal  interpretation. In the example below I added atrial flutter as the diagnosis, changing it from Kardia’s unclassified (Kardia’s algorithm calls anything it cannot clearly identify as AF that is over 100 BPM as unclassified.)

The ECG can then be archived or exported for entry into an EHR.

The benefits of this patient being connected
to me are obvious: we now  have an instantaneous patient-controlled method for knowing what his cardiac rhythm is doing whether he is having symptoms or not.

This knowledge allows me to make more informed treatment decisions.

The Kardia Pro Dashboard

When I  log into kardia pro I see this screen.

dashboard karia pro It contains buttons for searching for a specific patient or adding a new patient. Adding new patients is a quick and simple process requiring input of patient demographics including  email and birthdate.

From the opening screen you can click on your triage tab. I have elected to have all non normal patient recorded ECGS go into the triage tab.

Other Examples

Another patient’s Kardia Pro page shows that he records an ECG nearly every day and most of the time Kardia documents NSR in the 60s. Overall, he has made 773 recordings and 677 of them were NSR, 28 unanalyzed (due to brevity) , 13 unclassified and 55 showing AF.

Monitoring Rate  Control  In Patients With AF and Reversion Post-Cardioversion

Another patient I saw for the first time recently has had long-standing persistent AF.  His previous cardiologist performed an electrical cardioversion a year ago but the patient reverted back to AF in 40 hours.   Before seeing me he had purchased a Kardia mobile ECG device and was using it  to monitor his heart rate.

After he accepted my email invitation to connect via Kardia Pro I was able to see his rhythm and rate daily. The Kardia Pro chart belowshows his daily heart rate while in atrial fibrillation. We utilized this to guide titration of his rate controlling medications.  Such precise remote monitoring of heart rate in AF (which is often difficult to accurately assess by standard heart rate devices) obviates the need for office visits for 12 lead ECGs or periodic Holter monitors.

I performed a  second cardioversion on him after which he made  daily recordings documenting maintenance of NSR. With this system we can determine exactly when AF returns, information which will be very helpful in determining future treatment options.

Kardia Pro Plus Kardia Mobile ECG Creates Personal Intermittent Long Term Rhythm Monitor

There are many potential applications of the Kardia ECG device beyond AF monitoring (assessing palpitations, PVCs, tachycardia, etc.) but they are all enhanced when the device is combined with a good cardiologist connected to the device by Kardia Pro.

I’ve gotten spoiled by the information I get from my AF patients who are on  Kardia Pro now. When they call the office with palpitations or a sense of being out of rhythm I can determine within a minute what their rhythm is wherever I am (excluding tropical beaches and mountain tops)  or wherever the patient is (for the most part.)

On the other hand patients who are not on Kardia Pro have to come into the office for  12-lead ECGs. When they call I feel like my diagnostic tools are limited. Such patients usually end up getting one of the standard Long Term Monitoring (LTM) Devices. If I am fortunate, after a  few days to weeks , the results of the LTM will be faxed to my office.

I am optimistic based on this early experience with Kardia Pro that ultimately this service in conjunction with the Kardia Mobile ECG device (or similar products) will replace many of the more expensive and inconvenient long term monitoring devices that cardiologists currently use.

Skeptically Yours,