Ultrasound Patch Could Form Future Pacemaker

· Source: IEEE Spectrum · Field: Health & Wellbeing — Pharmaceuticals & Biotechnology, Clinical Care & Medical Practice, Medical Devices & Health Technology · Depth: Advanced, quick

Summary

California and Massachusetts scientists have developed a noninvasive pacemaker, detailed in Nature Biomedical Engineering, which aims to eliminate the need for surgical battery replacements required every five years for traditional devices. This innovative system combines a wearable ultrasound patch, roughly the size of an iPod Shuffle, with a gene therapy injection. The gene therapy introduces RNA into heart cells, prompting them to produce a sound-sensitive protein that enables them to "hear" high-frequency ultrasound waves. These waves, emitted by the chest-worn patch, stimulate the cells' ion channels, causing a calcium influx that cues the heart to beat. The approach has demonstrated effectiveness in rats, pig hearts, and human heart cell samples. While promising, clinical viability hinges on proving comparable reliability to existing pacemakers under various conditions and addressing gene therapy's cost, safety, and regulatory hurdles.

Key takeaway

For medical device developers and cardiologists evaluating future pacing solutions, this noninvasive ultrasound pacemaker represents a potential paradigm shift from traditional surgical implants. You should closely monitor its clinical development, especially regarding long-term reliability under various conditions, cost-effectiveness, and the regulatory pathways for its gene therapy component. This technology could significantly reduce surgical complications and improve patient quality of life, warranting careful consideration for future integration into cardiac care.

Key insights

A noninvasive pacemaker combines sonogenetics via RNA-based gene therapy with a wearable ultrasound patch to stimulate heartbeats.

Principles

Method

Patients receive a gene therapy injection to make heart cells produce a sound-sensitive protein, followed by wearing an ultrasound patch that emits high-frequency waves to stimulate heartbeats.

In practice

Topics

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Editorial summary, takeaway, and curation by AIssential. Original article published by IEEE Spectrum.