express gazette logo
The Express Gazette
Sunday, October 4, 2026

Smartwatch ECG Feature Alerts Man to AFib, Leading to Life-Saving Heart Surgery

A Samsung Galaxy Watch's atrial fibrillation detection prompted Joseph Holycross to seek emergency care, uncovering a serious heart condition that required open-heart surgery.

US Politics • an hour ago
Smartwatch ECG Feature Alerts Man to AFib, Leading to Life-Saving Heart Surgery

A father of four is crediting his Samsung Galaxy Watch with detecting atrial fibrillation (AFib) and prompting a critical medical intervention that led to life-saving open-heart surgery. Joseph Holycross had experienced symptoms of a racing heart for nearly two years, often attributing them to caffeine or exhaustion. However, his wife, Jamie, a respiratory therapist, noticed he seemed short of breath, urging him to use the ECG feature on his Samsung Galaxy Watch4 Classic.

A Watch-Led Diagnosis

The smartwatch's electrocardiogram (ECG) feature recorded an irregular heart rhythm, immediately flagging it as AFib. Initially, Holycross experienced denial, believing the watch's reading might be inaccurate on his older device. After repeating the test multiple times with similar results, his wife insisted they go to the emergency room for a professional electrocardiogram.

At the hospital, doctors confirmed Holycross was indeed in AFib. The tracing from his smartwatch closely resembled the hospital's findings. What was initially expected to be a brief check-up turned into a week-long hospital stay. Approximately ten days after his initial ER visit, Holycross underwent open-heart surgery to repair several issues with his heart.

Potential for Serious Complications

Jamie Holycross emphasized that doctors warned them about the severe consequences Joseph could have faced had he continued to ignore his symptoms. They indicated that he likely would have suffered a stroke, a heart attack, or both. Without medical intervention, doctors suggested he might not have lived to see age 45, a stark warning for Holycross, who was 39 at the time of the diagnosis and did not consider himself to have serious health problems.

Jamie, drawing from her experience in healthcare, noted the accuracy of the smartwatch's readings. During his hospital stay, she observed that the watch's heart rate data often closely matched the readings from hospital monitoring equipment, sometimes within one beat per minute. While not a replacement for professional medical equipment, this proximity reinforced her trust in the wearable technology's capabilities.

Family Health Concerns

The discovery of underlying heart issues also raised concerns for Holycross's family. Doctors indicated that some of his heart conditions might have a genetic component and could have been present since birth. Consequently, medical professionals recommended screenings for his siblings and advised that his children would also need to undergo similar screenings when they reach adulthood. This revelation has extended the potential impact of his health scare beyond his personal recovery, possibly offering his relatives an earlier opportunity to address any similar conditions.

Understanding Wearable Health Technology

Samsung states that the ECG feature in its Health Monitor app uses a compatible Galaxy Watch to record the heart's electrical activity over approximately 30 seconds. The app can then provide results such as sinus rhythm, AFib, high heart rate, or inconclusive readings. Samsung advises users who receive an AFib notification to contact their doctor, and to seek immediate medical attention if AFib is detected along with a high heart rate. However, the company cautions that this feature is not a substitute for traditional diagnostic methods or professional medical advice.

To perform an ECG, users are instructed to wear the watch snugly, rest their forearms, open the Samsung Health Monitor app on the watch, and place a finger from the opposite hand on the top button without pressing down. Remaining still is crucial for an accurate reading. The results can be reviewed and shared with a healthcare professional via the paired smartphone.

For Joseph Holycross, the smartwatch has become a tool for reassurance during his recovery. While any strange sensation can cause anxiety, being able to check his heart rhythm provides peace of mind. He now uses the watch's various health tracking features, which he previously overlooked, turning it into a device that offers significant comfort and support.


Sources