Scientists have created the world’s smallest pacemaker, revolutionizing treatment for children with heart conditions. This device is designed to automatically dissolve once no longer needed.
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| Northwestern University scientists have created a groundbreaking pacemaker, designed for children with heart conditions. It is small, temporary, and dissolves when no longer needed. Image: NU |
Evanston, Illinois, USA — April 8, 2025:
In a groundbreaking medical achievement, scientists from Northwestern University have unveiled the world’s smallest pacemaker, a game-changing innovation in heart treatment for children. The tiny device, no larger than a grain of rice, is designed to temporarily regulate heart rhythms in children with congenital heart problems. This development marks a significant leap forward, offering a more practical and less invasive alternative to traditional pacemakers.
The pacemaker works by sending electrical impulses to the heart, ensuring that it maintains a regular rhythm when the natural pacemaker (SA node) is unable to do so. While pacemakers come in two varieties — permanent and temporary — this new device is unique in that it is meant for temporary use. It’s particularly useful for children, whose bodies require frequent adjustments to pacemakers as they grow. Unlike conventional pacemakers that require surgical removal once they're no longer needed, this new device is designed to merge with the body naturally, eliminating the need for another surgery.
Researchers, including John A. Rogers, emphasize that this tiny pacemaker provides a safer, more efficient solution for children. The new design prevents the need for multiple surgeries, a common problem when traditional pacemakers are used in young patients. As a result, this breakthrough not only improves the quality of life for those with heart conditions but also reduces the risks and complications associated with frequent surgeries. The world’s smallest pacemaker is a revolutionary step in medical technology, making it easier, safer, and more effective to treat young hearts.