Over Long Term, Yoga Trumps Usual Care for Improving Back Function in Patients Suffering from Low Back Pain

In the largest and longest study of its kind published to date, more than 300 patients were followed for one year.

Chronic or recurrent back pain cost the U.S. health care system billions of dollars each year, and is one of the most common reasons people visit their doctor. Researchers conducted a trial to determine whether offering a 12-week yoga program to adults with chronic or recurrent low back pain could improve back function better than usual care (back pain education booklet and continuation of treatments patients were already receiving). More than 300 participants were randomly assigned to either a 12-session, 3-month yoga program (n = 156) or usual care (n = 157). Patients reported back function at 3, 6, and 12 months by filling out the Roland Morris Disability Questionnaire (RMDQ) that rated symptoms such as function and pain on a scale of 0 (best) to 24 (worst). The yoga group reported better back function but similar back pain and general health scores throughout the trial. Improvements in back function were most pronounced at 3 months, immediately after the intervention, but confidence in performing normal activities despite pain improved more in the yoga group than in the usual care group at 3 and 6 months. Eight participants reported adverse events, such as increased pain, that were may have been related to yoga. The researchers conclude that yoga may be a safe and effective treatment for patients with chronic low back pain.

Hand-held Metal Detectors Safe for Patients with Implanted Cardiac Rhythm Devices

Implanted cardiac rhythm devices (ICRDs) use small bursts of electricity to regulate a patient's heart beat. Some electronic devices, like the metal detectors used for security screening at airports, create magnetic fields that could interfere with the function of ICRDs. Researchers sought to determine if hand-held metal detectors used in airports could cause ICRDs to malfunction. The investigators scanned 388 patients (209 with pacemakers and 179 with ICDs) presenting for routine follow-up using two of the most common types of hand-held metal detectors. After researchers documented initial ICRD settings, patients were scanned over the chest area while lying supine. Devices were monitored continuously using ECG. The researchers observed no device malfunction during or after exposure to this screening. They conclude that use of common hand-held metal detectors in security screening of patients with pacemakers and cardioverter-defibrillators is probably safe, but caution that the findings require confirmation with a broader array of devices in real-world security screening settings.