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1.
Rev. méd. Chile ; 146(5): 562-569, mayo 2018. tab, graf
Article in Spanish | LILACS | ID: biblio-961432

ABSTRACT

Background: Deep brain stimulation is an essential therapeutic tool in Parkinson's disease. Aim: To assess the results of a series of patients with Parkinson's disease treated with micro-electrode guided subthalamic nucleus stimulation. Material and Methods: Twenty patients with idiopathic Parkinson's disease were studied (10 males). Three months after surgery, we analyzed the change in motor disturbances, medication need to control symptoms and quality of life. Results: We observed a significant improvement in all the assessed variables. Motor involvement determined as OFF hours and expressed as percentage of the day changed from 30 ± 15 to 10 ± 7% in the preoperative and postoperative periods, respectively. ON hours without dyskinesia changed from 17 ± 16 to 78 ± 21%. ON hours with dyskinesia changed from 53 ± 23 to 12 ± 15%. Medication need changed from 1,505 ± 499 to 1,214 ± 528 levodopa equivalents. Parkinson's Disease Questionnaire 39 score changed from 62.9 ± 22.7 to 34.3 ± 18.5. During the 5-year follow-up a continuous improvement of symptoms was observed. Conclusions: Micro-electrode guided subthalamic nucleus functional surgery in patients with Parkinson's disease has good immediate and late results.


Subject(s)
Humans , Male , Female , Middle Aged , Parkinson Disease/surgery , Subthalamic Nucleus/surgery , Deep Brain Stimulation/methods , Quality of Life , Severity of Illness Index , Retrospective Studies , Treatment Outcome , Deep Brain Stimulation/adverse effects
2.
Rev. chil. neuro-psiquiatr ; 31(3): 293-8, jul.-sept. 1993. ilus
Article in Spanish | LILACS | ID: lil-131615

ABSTRACT

En 15 gatos encéfalo aislados o curarizados, se estudiaron los fectos neurofisiológicos de la inhalación aguda de disolventes orgánicos de neoprén (Tolueno, n-hexano, benceno). La actividad eléctrica se registró medinate electrodos implantados estereotáxicamente en hipocampo, amígdalas, formación reticular mesencefálica y núcleo caudado. Se hizo monitoreo de EEG y ECG. El disolvente orgánico fue impulsado por medio de la ventilación mecánica. La actividad electrográfica de base durante los 30 a 40 min que duró cada sesión experimental, varió desde los signos de máxima alerta hasta intensificación de sincronización modulada que alternó con desincronización. Frecuentemente esta actividad estuvo desfasada entre las diversas estructuras estudiadas. Se observaron descargas paroxísticas parciales principalmente en hipocampo y amígdala. También se observaron descargas paroxísticas generalizadas con orígenes aparentes distintos. En cinco gatos se hizo fotoestimulación, en dos provocó paroxismos generalizados y en uno, crisis focal amigadliana. La frecuencia óptima fue de 3 Hz


Subject(s)
Animals , Cats , Cats/physiology , Electrocardiography , Neoprene/adverse effects , Nervous System/physiology , Administration, Inhalation , Benzene/adverse effects , Neoprene/administration & dosage , Substance-Related Disorders/diagnosis , Toluene/adverse effects
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