Vol 3-4 Review

Frequency Analysis for The Effect of Pico Tesla-Transcranial Magnetic Stimulation in Epilepsy Patients Using Magnetoencephalography

Photios Anninos1*, Athanasia Kotini1, Adam Adamopoulos1, Nicolaos Tsagas2

1Labratory of Medical Physics, Department of Medicine, School of Health Sciences, Alexandroupoli, Greece

2Department of Electrical Engineering, Polytechnic School, Democritus University of Thrace, Xanthi, Greece

The purpose of this research is to identify any change in the frequencies of 2-7Hz in the brain state of epilepsy patients after pico-Tesla transcranial magnetic stimulation (pT-TMS). It is a noninvasive technique for treating neurological disorders. We used magneto encephalographic (MEG) recordings of 10 epilepsy patients with a whole-head 122 - channel MEG system in a magnetically shielded room of low magnetic noise. The subjects were 5 male and 5 female epilepsy volunteers between 18-42 years of age. Afterwards, external pT-TMS was applied to the above patients. A software program was developed in our lab in order to detect the primary dominant frequency of the power spectra of the MEG obtained from every patient and channel before and after the application of pT-TMS. We found that 7 out of 10 patients (70%) had increased their 2-7Hz frequencies after the application of pT-TMS. We concluded that frequency analysis is a promising means for the assessment of epilepsy disorders.

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Vol 3-4 Commentary

Commentary: Loin Pain Hematuria Syndrome

Natalie M. Bath1*, Daniel H. Williams2, Hans W. Sollinger1, Robert R. Redfield III1

1 Division of Transplant Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA

2 Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA

Loin Pain Hematuria Syndrome (LPHS) remains a rare disease but has a significant impact on those affected by it. Patients diagnosed with LPHS experience severe, constant or intermittent flank pain that radiates to the groin and may be exacerbated even by a gentle touch. These patients often require significant narcotic regimens for pain control and are unable to maintain a functional lifestyle. Previously, diagnosis has been made based on clinical presentation. One treatment for this syndrome is renal autotransplant; however, success rates are varied. Therefore, patient selection for this procedure is important. We have developed the UW-LPHS test as a diagnostic maneuver in order to determine which patients with LPHS would benefit from renal autotransplant. To perform this diagnostic test, bupivacaine is instilled into the ureter on the affected side and left to dwell. Patients who experience pain relief following this test are deemed to benefit from renal autotransplant. Here we describe this novel diagnostic test and initial success rates following renal autotransplant.

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