Blood Pressure Smartphone App Doesn’t Beat Traditional Home Monitoring


Here’s another vote for less screen time. Tracking blood pressure with a smartphone app won’t lead to any greater drop in blood pressure than simply self-monitoring with the kind of device that doctors typically suggest be used at home.

That’s according to a new study involving patients with high blood pressure, also known as hypertension, who were randomly placed into one of two groups. Half of the people in the study self-measured their blood pressure with a standard monitor alone. These devices consist of a measuring unit attached to a cuff made of a piece of rubber or similar material that is wrapped around your arm and then inflated to measure your blood pressure. The other half, or the second group, self-measured their blood pressure using the standard device paired with a connected smartphone app.

Both groups achieved nearly identical reductions in blood pressure (about 11 points in systolic blood pressure – the top number) over 6 months, reported satisfaction with the monitoring process, and shared their readings with their doctors with similar frequency.

The study involved 2,101 adults, generally middle-aged or older, who said they would try to reduce their blood pressure by at least 10 points.

“By itself, standard self-measured blood pressure has minimal effect on BP control,” wrote lead author Mark J. Pletcher, MD, of the University of California, San Francisco, and colleagues in JAMA Internal Medicine. To actually improve blood pressure control, there also needs to be patient feedback, counseling, or other opportunities for intervention.

The researchers also saw other similar results between the two groups in the study. For example, 70% of those who used the app said they would recommend following the process they used to track their blood pressure to a friend, compared with 69% of participants who followed the standard approach.

New devices that link with smartphone apps, like the one used in this trial, send blood pressure measurements to the patient’s smartphone. The apps allow for tracking measurements, interpret the results, and can send reminders to measure blood pressure and take medications. They also offer recommendations for a healthier lifestyle and provide nudges to discuss your blood pressure with your doctor, among other things, the researchers explained.

Pletcher noted that it’s hard to get people to actively use health-related apps for long periods of time.

“There is so much competition for people’s attention on their phone,” he said.

But he hasn’t given up on these apps, saying that “with the right technology and connectivity and user experience, they still could be game-changing for managing” high blood pressure and other long-term health issues.

Matthew Jung, MD, of the University of Southern California, says the study is noteworthy for several reasons, including its large size, the similar level of comfort with technology reported by both groups, and representation of Black and Hispanic people.

But he also pointed out several study limits, including that one-third of the people studied never confirmed they received a device, less than half of the group assigned to using the app said they used it, and the study only lasted 10 weeks.

Home Monitoring for Heart Failure Management


With a prevalence of 5.8 million in the United States alone, heart failure (HF) is a common syndrome associated with substantial morbidity, mortality, and healthcare expenditures. Close to 1 million HF hospitalizations occur annually in the United States, with the majority of these resulting from worsening congestion in patients previously diagnosed with HF. An estimated $37.2 billion is spent each year on HF in the United States. These statistics emphasize the need to develop and implement more effective strategies to assess, monitor, and treat HF. It has also become increasingly apparent that interventions geared toward identifying and monitoring subclinical congestion would be of value in the home management of chronic HF. Earlier identification and treatment of congestion together with improved care coordination, management of comorbid conditions, and enhanced patient self-management may help to prevent hospitalizations in patients with chronic HF. Such home monitoring extends from the promotion of self-care and home visitations to telemedicine and remote monitoring of external or implantable devices. This paper discusses the challenges in monitoring patients with HF, reviews clinical trials testing different monitoring strategies in HF, and highlights ongoing investigations into the optimal approaches to home monitoring for HF.

source:JACC.