Ultrasound can help relieve pain, shows study

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Imagine a future where relieving pain doesn’t always involve pills or invasive procedures but instead a non-invasive technique that directly targets the brain.

This isn’t a scene from a sci-fi movie but a real possibility suggested by recent research led by Wynn Legon, an assistant professor at the Fralin Biomedical Research Institute at VTC.

Published in the journal Pain, this study introduces an innovative approach to pain management using low-intensity focused ultrasound aimed at the insula—a deep region of the brain associated with pain perception.

The principle behind focused ultrasound is similar to the technology used in pregnancy ultrasounds but refined to direct a narrow band of sound waves to a precise point in the brain.

While high-intensity ultrasound can destroy tissue, low-intensity ultrasound, as used in this study, aims for milder, reversible effects, such as modifying the activity of nerve cells.

The exploration into non-surgical methods for altering brain function isn’t new; techniques like transcranial magnetic stimulation have been investigated for treating depression among other conditions.

However, Legon’s work marks a pioneering step in utilizing focused ultrasound to specifically target the insula to alleviate pain.

In this groundbreaking study, 23 healthy participants experienced heat-induced pain on their hands while undergoing focused ultrasound. This process was guided by MRI to ensure accuracy.

The effects were measured not just by subjective pain ratings—where participants noted a significant decrease—but also by objective indicators such as heart rate and heart rate variability.

These physiological measures are crucial because they reflect the body’s broader response to pain and stress.

The findings are promising: participants reported a noticeable reduction in pain perception, and the ultrasound treatment showed potential in lessening the physical stress responses associated with pain.

This dual impact—on both the feeling of pain and the body’s stress response—highlights the technique’s potential to improve overall health and quality of life.

While the average pain reduction might seem modest, the implications are significant.

Even a slight decrease in pain can enhance daily functioning and possibly reduce reliance on stronger painkillers, including opioids, which come with risks of addiction and side effects.

The research opens up exciting avenues for further exploration, particularly in understanding the heart-brain axis—the complex interplay between cardiovascular and neurological health.

By potentially mitigating the cardiovascular stress of pain, focused ultrasound could offer a holistic approach to managing chronic pain, presenting a sound-based therapy that aligns with the body’s natural rhythms.

If you care about pain, please read studies about vitamin K deficiency linked to hip fractures in old people, and these vitamins could help reduce bone fracture risk.

For more information about wellness, please see recent studies that Krill oil could improve muscle health in older people, and eating yogurt linked to lower frailty in older people.

The research findings can be found in Pain.

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