Medical Devices & Technology Archive

Leadless pacemakers, which are no bigger than a multivitamin pill, are far less prone to complications that traditional pacemakers, which have long leads (wires). These wires may become infected, dislodged, frayed, or broken. Scar tissue or blood clots can form around the leads, which may hinder blood flow and cause pain and swelling. Thanks to recent advances, most people who need pacemakers may now be candidates for leadless devices. However, doctors have less experience with what happens with leadless pacemakers over the long term—and they cost two to three times as much as a traditional pacemaker.

Mobile ECG devices are small, handheld devices that people can use to record a simple ECG at home. They are designed to detect heart rhythm disorders such as atrial fibrillation.

Some people with diabetes use a device that continuously monitors the level of blood sugar. The monitor sends the information wirelessly to another device, such as a smartphone, so the person can easily see the blood sugar level. As of 2024, there is no solid evidence that these monitors can help people who do not have diabetes. However, the monitors may one day prove to be useful in people with diabetes risk factors, such as obesity, prediabetes, or a family history of diabetes.

Using a Web-based app, most people can correctly assess their need for a cholesterol-lowering statin and take the drug appropriately with good results, according to a 2024 study. If approved, the app could facilitate statin use without a doctor's prescription.

Cardiac rehabilitation, a personalized program of supervised exercise and heart-healthy lifestyle coaching, helps people recover from heart-related problems, including stable angina, heart attack, heart surgery, and stable heart failure. A 12-week program helps people regain their stamina, enabling them to resume their favorite activities, and may also lessen stress and depression. Cardiac rehab is also proven to lower the risk of future heart-related illness and hospitalization and may help people live longer.

When choosing a home blood pressure monitor, people should select one that has an easy-to-read display and a well-fitting upper arm cuff that inflates automatically. It should appear on the U.S. Blood Pressure Validated Device Listing.

In 2024, the FDA advised against using smart watches or smart rings that claim to monitor blood sugar without piercing the skin. Using them, the FDA warned, could result in inaccurate blood sugar measurements, which is dangerous for people with diabetes.

Continuous glucose monitors, or CGMs, offer valuable and accurate insights into blood sugar levels. But it's important to understand who CGMs are most appropriate for.

A 2024 study found that a smartphone-based mall walking program may motivate people—especially women and older adults—to walk more.

Compared with analog scales, digital scales are more accurate and easier to read. Many smart scales include added features such as smartphone connectivity and body composition estimates.