Medical Devices & Technology

Medical Devices & Technology Articles

Harnessing CRISPR to stop viruses

As reported online Oct. 2, 2019, by Molecular Cell, a Harvard team was able to use the gene editing tool CRISPR to kill certain viruses, including the influenza virus, in a laboratory dish. More »

When the heart beats too slowly

Bradycardia, defined as a heart rate is below 60 beats per minute, is common in older adults, usually after age 70. Most people don’t experience symptoms, but those who do may feel dizzy, lightheaded, fatigued, breathless, or confused, and may faint. The condition may result from normal, age-related degeneration of the sinoatrial node, the heart’s natural pacemaker. Another underlying cause is a problem with the atrioventricular node, located in the center of the heart. (Locked) More »

Transforming the treatment of diabetes

A program that uses a smartphone app and telemedicine to provide frequent virtual office visits for people with diabetes may help them manage their disease more effectively. People in the program also receive a glucose monitor to test their blood sugar and use the app to send their results to a cloud-based server, where clinicians can review the results. The app also provides detailed lifestyle intervention plans, including an animated figure that demonstrates exercises and menus that include common foods that people eat everyday but with less carbohydrate, more protein, and smaller portions. More »

Smartphone apps for managing heart disease

Smartphone apps that pair with devices that record data (such as a blood pressure cuff, a personal electrocardiogram, or a scale) may help doctors fine-tune treatments for people with certain cardiovascular conditions. Contrary to popular belief, many people ages 65 and older are comfortable using apps. Apps paired with devices allow people to collect health data at home in a consistent, streamlined manner. The data are then stored electronically in a simple, accessible format (such as a graph) that is easy to retrieve, view, and send to a doctor. (Locked) More »

Pacemaker concerns

The latest pacemaker models not only help people stay active later in life, they’re also more compatible with today’s technology. But people with pacemakers should take precautions when lifting weights and in certain airport security situations. (Locked) More »

Heart rhythm monitoring with a smartwatch

Some smartphones now feature sensors and apps that detect atrial fibrillation, the most common heart rhythm disorder. But these devices are not yet accurate enough to use for screening purposes. About 30% of the data are uninterpretable or inaccurate, in part because of factors such as movement, lighting, temperature, and skin color. In addition, doctors cannot be fully available to review information generated from these devices. Finally, the health consequences of occasional, brief episodes of atrial fibrillation (which causes a rapid, irregular heartbeat) are unknown. (Locked) More »

What is sick sinus syndrome?

Sick sinus syndrome refers to various heartbeat irregularities that can cause fainting, weakness, palpitations, or shortness of breath. Most cases are due to age-related changes in the heart muscle that disrupt the heart’s electrical system. (Locked) More »