Functional magnetic stimulation can improve the urination of persons with urine retention after a spinal cord injury / 中华物理医学与康复杂志

Objective:To observe any effect of functional magnetic stimulation (FMS) of the sacral 3 nerve root on relieving urine retention after a spinal cord injury.Methods:Forty-four patients with neurogenic bladder disorders after a spinal cord injury were divided at random into a 5Hz group ( n=14), a 20Hz group ( n=15), and a sham stimulation group ( n=15). In addition to conventional bladder control training, the 5Hz and 20Hz groups were given 20 minutes of FMS of the sacral 3 nerve root at the appropriate frequency five days a week for 4 weeks. The sham stimulation group was not given any stimulation. A detailed urination diary was kept during the treatment, and before and after the 4 weeks, everyone′s bladder pressure volume was assessed and an electromyogram was recorded. Results:After the treatment those in the 5Hz and 20Hz groups had improved significantly in terms of average bladder capacity, bladder pressure, residual urine volume, daily number of urethral catheterizations, daily micturition frequency, single urine output, H-reflex latency, and the amplitude and incubation period of the F wave. Those in the sham stimulation group showed no consistent improvement in any of these indicators. Moreover, the average residual urine volume, daily urination frequency and H-reflex latency and amplitude of the 20Hz group were significantly better than those of the 5Hz group.Conclusions:Magnetic stimulation of the S3 nerve roots can effectively improve the urination of persons with neurogenic bladder disorders after a spinal cord injury. The preferred frequency is 20Hz.

Improvement of neurogenic bowel dysfunction after spinal cord injury using functional magnetic stimulation based on anorectal manometry / 国际生物医学工程杂志

Objective:To explore the effect of functional magnetic stimulation(FMS) on the intestinal function of patients with neurogenic bowel dysfunction (NBD) after spinal cord injury using anorectal manometry technology.Methods:36 NBD patients were divided into FMS group and control group by random number table method. Patients in the control group received conventional treatment, including diet adjustment, abdominal massage, and pelvic floor muscle training. Patients in the FMS group received FMS treatment on the basis of conventional treatment. Using 3D high-resolution anorectal manometry and neurogenic intestinal dysfunction score, the intestinal function of the two groups of patients before and after the treatment were evaluated.Results:After receiving conventional treatment + FMS treatment, the high-pressure belt length, anal systolic pressure, rectal pressure, rectal-anal pressure difference, initial sensory threshold, bowel sensation threshold, maximum tolerance threshold, rectal compliance of the patients in the FMS group received were better than those before the treatment (all P<0.05). After receiving conventional treatment, only the rectal-anal pressure difference, initial sensory threshold and maximum tolerance threshold of the patients in the control group were significantly improved (all P<0.05). The improvement of the FMS group on the length of the high-pressure belt, anal systolic pressure, rectal pressure, and initial sensory threshold was significantly better than those of the control group (all P<0.05). Conclusions:The implementation of FMS therapy on the basis of conventional treatment can better improve the intestinal motility and intestinal sensation of the patients with NBD. The 3D high-resolution anorectal manometry technique can be used to quantitatively evaluate the intestinal function of NBD patients.

Application of Physical Factor Therapy in Neurogenic Bladder (review) / 中国康复理论与实践

@#Physical factor therapy is commonly used in the treatment of nervous system damage. Recent years, physical factor therapy gets popular attention because of its good therapeutic effects, low cost, simple operation and widely application. This article respectively in-troduced the effects of electrical stimulation therapy, functional magnetic stimulation therapy and biofeedback therapy on neurogenic blad-der.

Effects of Functional Magnetic Stimulation on the Functional Recovery in a Rat Model of Spinal Cord Injury

OBJECTIVE: To investigate the effects of functional magnetic stimulation (FMS) on the functional recovery in a rat model of spinal cord injury (SCI). METHOD: Forty-five Sprague-Dawley rats (200~250 grams, female) were used. Rats were laminectomized and the T9 segment of spinal cord was contused using New York University (NYU) spinal impactor. Ten gram weight rod was dropped from a height of 25 mm to produce moderately contused spinal cord injury model. The animals were randomly assigned to 2 groups: one exposed to FMS (FMS group) and the other not exposed to FMS (non-FMS group). Transcranial functional magnetic stimulation was noninvasively applied for 4 weeks. To compare the results between FMS group and non-FMS group, motor functions were evaluated with the Basso, Beattie, and Bresnahan (BBB) locomtor rating scale and inclined plane test, and somatosensory evoked potentials (SEP) and motor evoked potentials (MEP) were also recorded. RESULTS: There was a significant difference in locomotor recovery between FMS group and non-FMS group (p<0.05). Measurement of MEP was also indicated that amplitude of MEP in FMS group is larger than that in non-FMS group. CONCLUSION: These results indicate that FMS may have beneficial effects on motor recovery after spinal cord injury and the benefits of FMS could be an additional non-invasive therapeutic method for clinical trials in patients with spinal cord injury.

Effects of Functional Magnetic Stimulation on Hemiplegic Shoulder Subluxation

OBJECTIVE: To evaluate the effects of functional magnetic stimulation (FMS) on shoulder subluxation following hemiplegia due to stroke or traumatic brain injury. METHOD: Twenty-four hemiplegic patients were participated in this study as FMS group (12 subjects) and FES (functional electric stimulation) group (12 subjects). FMS or FES were applied on the supraspinatus and posterior deltoid muscle area for 20 minutes, 5 days a week for 3 weeks. The effect of treatment was evaluated by assessment of the degree of shoulder subluxation using radiologic measurements, pain threshold and pain tolerance pressure, range of motion of the shoulder, muscle power and spasticity. RESULTS: The degree of shoulder subluxation was signifi-cantly decreased after 3 weeks in both groups, and the FMS group improved more than the FES group. However there were no differences between two groups significantly. There was no significant effect of disease duration on change of shoulder subluxation. The ranges of motion of shoulder were increased in FMS group significantly. Pain threshold and pain tolerance pressure were increased in pectoralis major and infraspinatus muscles shortly after FMS application. CONCLUSION: This study suggests that the FMS could be applied effectively in preventing and reducing the shoulder subluxation in patient with hemplegia irrespective of disease duration.

Functional magnetic stimulation for treating the neurogenic bladder in patients with spinal cord injury / 中华物理医学与康复杂志

Objective To assess the efficacy of functional magnetic stimulation (FMS) in treatment of neurogenic dysfunction of bladder and urethra in patients with spinal cord injury. Methods A total of 12 patients accepted FMS to the sacral nerves at S 3 and bladder area. The study variables included urodynamic parameters,the quality of life and international lower urinary tract syndrome (LUTS)symptoms. Results There were significant improvements in 10 patients with respect to the number of voiding,volume voided and degree of frequency,urgency and incontinence. Only 2 patients were failed to make any progress. Conclusion FMS is an effective,safe therapy for the spinal cord injury patients complicated with neurogenic dysfunction of bladder and urethra and improve the patients' quality of life.