Clinical Neuroscience

[Comparison of subthalamic nucleus planning coordinates in 1Tesla and 3Tesla MRI for deep brain stimulation targeting ]

JUHÁSZ Annamária, KOVÁCS Norbert, PERLAKI Gábor, BÜKI András, KOMOLY Sámuel, KÖVÉR Ferenc, BALÁS István

NOVEMBER 30, 2018

Clinical Neuroscience - 2018;71(11-12)

DOI: https://doi.org/10.18071/isz.71.0405

[Backgroud - Deep brain stimulation (DBS) involves placing electrodes within specific deep brain nuclei. For movement disorders the most common indications are tremors, Parkinsons disease and dystonias. Surgeons mostly employ MR imaging for preoperative target selection. MR field geometrical distortion may contribute to target-selection error in the MR scan which can contribute to error in electrode placement. Methods - In this paper we compared the STN target planning coordinates in six parkinsonian DBS patients. Each patient underwent target planning in 1T and 3T MRI. We statistically compared and analysed the target-, and the fiducial coordinates in two different magnetic fileds. Results - The target coordinates showed no significant differences (Mann-Whitney test, p > 0.05), however we found significant difference in fiducial coordinates (p < 0.01), in 3T MRI it was more pronounced (mean ± SD: 0.8 ± 0.3 mm) comparing to 1T (mean ± SD: 0.4 ± 0.2 mm). Conclusion - Preliminary results showed no significant differences in planning of target coordinates comparing 1T to 3T magnetic fields.]

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[The treatment of Parkinson’s disease depends on the symptoms of the patients and obviously the stage of the disease. Several different approaches can be found in the literature. Based on the published data, in this review we try to summarize the different approaches to the disease stages and theirs’ clinical relevance. Actually, one of the most important issue is the recognition of advanced stage and therefore we reviewed the device-aided therapies. ]

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Inflammatory biomarkers in benign paroxysmal positional vertigo: A Turkey case-control study

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Objective - Benign paroxysmal positional vertigo (BPPV) is the most common cause of recurrent vertigo. Inflammation is a hypothetic etiological factor in BPPV. The aim of this study was to evaluate inflammatory biomarker levels in BPPV patients and compare these with the healthy subjects. Materials and methods - This prospective case-control study was conducted with 114 newly diagnosed BPPV patients and age- and sex- matched 83 healthy subjects. The laboratory investigations included serum hemogram, full biochemistry profiles, vitamin levels, thyroid hormone profiles, high sensitivity C-reactive protein (hsCRP) and erythrocyte sedimentation rate (ESR). Neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and monocyte to HDL-cholesterol ratio (MHR) values were calculated and compared between the patients and healthy subjects. Results - The mean age was 39.1 ± 12.4 years for patients, and 37.0 ± 11.9 for controls. Vitamin B12, hematocrit (Hct), creatinine, urea, and fT4 values, lymphocyte, total bilirubin, direct bilirubin and indirect bilirubin levels were significantly lower in BPPV patients (p ˂ 0.05), while HDL, SGOT, and ESR values were significantly higher. In the BPPV patients the mean NLR, PLR, and mean platelet volume (MPV) values were significantly higher than in the control subjects. Neutrophil, platelet, monocyte, MHR, and CRP values were similar in both groups (p ˃ 0.05). Conclusion - Our result suggests that NLR, PLR, MPV, ESR, and bilirubin levels should be taken into account as potential biomarkers of BPPV. As they are inexpensive parameters and widely available, they can be used in clinical practice for prediction of BPPV. However, further large-scale studies are required to confirm this relationship.

Clinical Neuroscience

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Psychoform and somatoform dissociative experiences in migraine: relationship with pain perception and migraine related disability

SENGUL Yildizhan, SENGUL Serdar Hakan, TUNC Abdulkadir

Objective - Migraine is a common and often debilitating disorder. Although the existence of a link between migraine and certain psychological features has long been known, data on dissociative experiences in migraine patients is insufficient. The aim of this study was to evaluate the presence of psychoform and somatoform dissociative experiences among migraine patients without aura and to examine their relationship with pain perception and disability. Methods - A total of 110 outpatients diagnosed with migraine based on the International Classification of Headache Disorders-III (ICHD-III) criteria and 70 healthy subjects were enrolled to this study. Sociodemographic data, Somatoform Dissociation Questionnaire (SDQ), Dissociative Experience Scale (DES), Beck Depression Inventory (BDI), and Beck Anxiety Scale (BAS) scores were recorded for each patient. The Migraine Impairment Disability Assessment Scale (MIDAS) and Visual Analog Scale (VAS) scores were also determined. Results - The mean SDQ and DES scores were significantly higher in migraine patients (p<0.001, p<0.01). According to SDQ, somatoform dissociation disorder, dissociative disorder not otherwise specified, and dissociative identity disorder were considered in 29.4%, 18.3%, and 10.1% of the migraine patients, respectively. Also, 20.9% of the patients had possible psychoform dissociation according to DES. A significant positive correlation was found between DES, SDQ scores, and VAS, MIDAS scores. Patients were found to have statistically significantly higher levels of depression and anxiety symptoms compared to healthy controls (p < 0.001). Higher DES and SDQ scores were associated with increased disability and pain level (p<0.01). Conclusion - Our findings seem to confirm the increased occurrence of somatoform and psychoform dissociative experiences in migraine patients. This study was intended as a beginning towards understanding dissociative experiences in migraine.

Clinical Neuroscience

[Effects of neural therapy on quality of live in patients with inoperable lower extremity artery disease ]

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[Objectives - Our aim was to evaluate the effects of percutaneous neurolysis of lumbal sympathetic ganglions on pain and the resulting changes in quality of life with validated objective and subjective methods. To follow the adverse effects and complications of the procedure. Materials and methods - A prospective, non-randomized, interventional, clinical cohort study under real life conditons was conducted. The time of the observation was 6 months. Palliative neural therapy was performed to reduce the ischemic pain of the affected leg of the patients involved in the study. Prior to treatment and after 35 days, Visual Analogue Scale (VAS) was used to measure the intensity of lower limb pain. The related changes in the quality of life were followed by a general 36-Item Short-Form Health Survey (SF-36) questionnaire. We measured the changes of the patients’ skin temperature and ankle/arm index. The post-treatment results were compared to the pre-treatment results. We compared the results of objective and subjective measures. We followed the side effects and complications of the pain therapy. Each of the examined subjects had obliterative (Fontaine II/b stage) arterial disease of the lower limbs, in which no revascularization intervention was feasible and their ischemic pain was of VAS≥7. Results - Data of 124 patients (69 male, 55 female) could be evaluated. The decrease in intensity of limb pain in the post-treatment period was significant (p=0.001). Quality of life also indicated a significant improvement (p=0.004). Changes in skin temperature and ankle/arm index demonstrated significant improvement (p≤0.005): skin temperature increased from 27.6°C to 31.2°C, the ankle/arm index inceased from 0.67 to 0.83 on average. Changes in objective and subjective measures correlated with each other. No worthening of symptoms, serious adverse events or complications were observed. Conclusion - The chemical denervation of the lumbar sympathetic ganglions with percutaneous application is a minimally invasive intervention, useful in outpatient care, which can be well tolerated by the patient without any significant side effect or complication. Its hyperaemic effect and the pain reduction of the leg can improve the quality of life of the patients.]

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[Earlier and more efficiently: the role of deep brain stimulation for parkinson’s disease preserving the working capabilities]

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Clinical Neuroscience

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