Magdalena Koszewicz1, Slawomir Michalak2, Malgorzata Bilinska3, Slawomir Budrewicz4, Mikolaj Zaborowski5, Krzysztof Slotwinski6, Ryszard Podemski7, Maria Ejma8. 1. Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland. Electronic address: magda.koszewicz@onet.pl. 2. Department of Neurochemistry and Neuropathology, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznan, Poland; Neuroimmunological Unit, Miroslaw Mossakowski Medical Research Center of the Polish Academy of Sciences, Przybyszewskiego 49, 60-355 Poznan, Poland. Electronic address: swami622@gmail.com. 3. Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland. Electronic address: mbilinsk@mp.pl. 4. Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland. Electronic address: s.budrewicz@wp.pl. 5. Division of Gynecologic Oncology, Department of Gynecology, Obstetrics and Gynecologic Oncology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznan, Poland. Electronic address: mikolaj.zaborowski@gmail.com. 6. Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland. Electronic address: k.slot@gazeta.pl. 7. Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland. Electronic address: ryszard.podemski@umed.wroc.pl. 8. Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland. Electronic address: mejma@interia.pl.
Abstract
OBJECTIVE: Cerebral lesion due to different neurological conditions could be complicated by autonomic dysfunction, reported in the literature as a sympathetic hyperactivity. The mechanisms of dysautonomia still remains partial. The aim of the study was to assess the profile of autonomic dysfunction in patient with primary brain tumors, with attempt to estimate the additional factors in pathogenesis of dysautonomia. MATERIAL AND METHODS: Neurological examinations, the Low's autonomic disorder questionnaire, electrophysiological autonomic tests (Heart Rate Variability test at rest and during deep breathing, spectral analysis of R-R intervals, sympathetic skin response test), studies of peripheral nerves, blood sampling collection for antibodies were done in 33 patients with recognized primary brain tumors. RESULTS: The averaged Low's Questionnaire score in the patients group was significantly higher than in the controls, systolic blood pressure was increased, heart rate tended to be higher without significance, but heart rate variability was severe low, LF/HF ratio also tended to be higher in the patients group. In SSR test the amplitude of responses from hand and foot was significantly lower without changes in their latencies. We found changes in the electrophysiological tests of peripheral nerves, and positive anti-neural antibodies in 5 patients. CONCLUSIONS: The results of the study indicated to the sympathetic nervous system hyperactivity in patients with primary brain tumors. Local brain lesion with high intracranial pressure, additional peripheral nerve damage probably in the course of autoimmunity, and direct influence of autoimmunity to the central part of autonomic nervous system are possible in the pathogenesis of dysautonomia. Copyright Â
OBJECTIVE:Cerebral lesion due to different neurological conditions could be complicated by autonomic dysfunction, reported in the literature as a sympathetic hyperactivity. The mechanisms of dysautonomia still remains partial. The aim of the study was to assess the profile of autonomic dysfunction in patient with primary brain tumors, with attempt to estimate the additional factors in pathogenesis of dysautonomia. MATERIAL AND METHODS: Neurological examinations, the Low's autonomic disorder questionnaire, electrophysiological autonomic tests (Heart Rate Variability test at rest and during deep breathing, spectral analysis of R-R intervals, sympathetic skin response test), studies of peripheral nerves, blood sampling collection for antibodies were done in 33 patients with recognized primary brain tumors. RESULTS: The averaged Low's Questionnaire score in the patients group was significantly higher than in the controls, systolic blood pressure was increased, heart rate tended to be higher without significance, but heart rate variability was severe low, LF/HF ratio also tended to be higher in the patients group. In SSR test the amplitude of responses from hand and foot was significantly lower without changes in their latencies. We found changes in the electrophysiological tests of peripheral nerves, and positive anti-neural antibodies in 5 patients. CONCLUSIONS: The results of the study indicated to the sympathetic nervous system hyperactivity in patients with primary brain tumors. Local brain lesion with high intracranial pressure, additional peripheral nerve damage probably in the course of autoimmunity, and direct influence of autoimmunity to the central part of autonomic nervous system are possible in the pathogenesis of dysautonomia. Copyright Â