Apple Watch ECG Useful for Kids During Cancer Treatment

The ECG sensor is undoubtedly one of the Apple Watch’s greatest assets. It is reliable, useful and provides users with an important tool in monitoring certain heart conditions. Several studies have already confirmed the ECG benefit of the probe and it has already been pointed to as an essential ingredient in saving human lives. Now, the Murdoch Children’s Research Institute in Australia has launched a new study to validate the Smartwatch ECG application of US technology in children during and after cancer treatment.

The various data collected by the watch can be very important in helping to care for children while battling a terrible disease.

The Murdoch Children’s Research Institute (MCRI) is the largest child health research institute in Australia and the three largest child health research institutes in the world in terms of research quality and impact.

A prospective study in children, teens, and young adults ages 7 to 18 aims to validate the use of the electrocardiogram (ECG) feature on Apple Watch to measure heart rate elongation. QT interval during and after cancer treatment.

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What is QTc and how to check it with Apple Watch

The QT interval is a measurement that represents the total time between ventricular depolarization and complete repolarization. This process begins at the beginning of the Q wave and continues until the end of the T wave.

Since we need to generate a number for the regular formula, a mathematical formula known as Bazett’s formula has been created. This is designed to correct the patient’s heart rhythm. The letter “c” in QTc stands for “corrected”. If you enter some variables in the QTc formula, you will get a numerical result.

This number is then compared with the two normal values ​​(male 0.39, female 0.41). This method allows 12-pin computers to quickly calculate the QTc and print it on the ECG record. It also allows paramedics to quickly assess the QT interval.

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Each square corresponds to 40 milliseconds.

The smart watch can practically and reliably evaluate the QTc period

In this case, prolonged QT is the medical term for the period between contraction and relaxation of the heart. This condition can increase the risk of abnormal heart rhythms and sudden cardiac arrest.

The reliability of QTc measurements between a standard ECG and that of a smartwatch was also demonstrated by Bland-Altman analysis using various formulas. This data shows that the smartwatch can feasibly and reliably assess the QTc interval.

This application allows clinicians to quickly calculate QTc. You can enter heart rate or RR interval duration and QT interval duration.

There will be up to three QTc results, using three of nine different formulas: Bazett, Fridericia, Framingham, Hodges, Goto, Mayeda, Kawataki, Rautaharju a and Formula b.

The RR or heart rate interval and QT estimates are also determined based on the heart rate.

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What are the goals of the MCRI in the Apple Watch study?

This new Australian study will attempt to understand:

The main objective:

  • Evaluate the results between the QTc measured with a 12-lead ECG and with the Apple Watch using mean absolute error calculations.

Secondary goals:

  • Calculate sensitivity and specificity for prolonged QTc measurement using Apple Watch;
  • Calculate the inter-observer variance between the QTc readings of two healthcare professionals.

The central premise is that the use of technology portable The current QTc prolongation monitoring framework has the potential to implement routine monitoring strategies in large populations, which may facilitate outpatient care.

The use of Apple Watch for prolonged QTc monitoring in this study improves patient outcomes by facilitating real-time monitoring of potential irregularities, widespread monitoring, detection, and faster initiation of treatment solutions.

The app and device (Apple Watch) will record the ECG reading V1 (left wrist) or V2 (left ankle). These measurements will be made on Day 1 and Day 4 of your hospital stay.

In short, over time and with further research, it is clear that the Apple Watch has become not only a device to help the user control his safety, but also a tool for continuous health monitoring of a person. Moreover, this kind of technology, not only from Apple but also from many other manufacturers, can help in continuous monitoring of people who are suffering from disease scenario and need constant monitoring.

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