ABSTRACT
PURPOSE: To evaluate the effect of bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) on levodopa-induced peakdose dyskinesia in patients with Parkinson's disease (PD). MATERIALS AND METHODS: A retrospective review was conducted on patients who underwent STN DBS for PD from May 2000 to July 2012. Only patients with levodopa-induced dyskinesia prior to surgery and more than 1 year of available follow-up data after DBS were included. The outcome measures included the dyskinesia subscore of the Unified Parkinson's Disease Rating Scale (UPDRS) part IV (items 32 to 34 of UPDRS part IV) and the levodopa equivalent daily dose (LEDD). The patients were divided into two groups based on preoperative to postoperative LEDD change at 12 months after the surgery: Group 1, LEDD decrease >15%; Group 2, all other patients. Group 2 was further divided by the location of DBS leads. RESULTS: Of the 100 patients enrolled, 67 were in Group 1, while those remaining were in Group 2. Twelve months after STN DBS, Groups 1 and 2 showed improvements of 61.90% and 57.14%, respectively, in the dyskinesia subscore. Group 1 was more likely to experience dyskinesia suppression; however, the association between the groups and dyskinesia suppression was not statistically significant (p=0.619). In Group 2, dyskinesia was significantly decreased by stimulation of the area above the STN in 18 patients compared to stimulation of the STN in 15 patients (p=0.048). CONCLUSION: Levodopa-induced dyskinesia is attenuated by STN DBS without reducing the levodopa dosage.
Subject(s)
Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Antiparkinson Agents/administration & dosage , Deep Brain Stimulation , Dyskinesia, Drug-Induced/therapy , Levodopa/administration & dosage , Outcome Assessment, Health Care , Parkinson Disease/drug therapy , Postoperative Period , Retrospective Studies , Subthalamic Nucleus , Treatment OutcomeABSTRACT
Baseados em extensa revisão da literatura, os autores analisam o conceito, a fenomenologia, a fisiopatologia e o tratamento atual dos diversos movimentos anormais induzidos por drogas. Dentre estes são abordados a acatisia, o balismo, a distonia, a mioclonia, o tique, o tremor e o parkinsonismo, enfatizando, ao final, as discinesias tardias e as induzidas pela levodopa.
Subject(s)
Antipsychotic Agents/adverse effects , Dyskinesia, Drug-Induced/classification , Dyskinesia, Drug-Induced/physiopathology , Dyskinesia, Drug-Induced/therapy , Levodopa/adverse effects , Review Literature as TopicABSTRACT
En este trabajo se hace una revisión acerca de disquinesias tardías, temidas complicaciones del uso de antipsicóticos. Clínicamente se presentan de manera polimorfa, aunque tienden a seguir un patrón más o menos característico de acuerdo al sexo y edad del paciente afectado. Su fisiopatología es desconocida, revisándose las principales teorías que al respecto existen en la actualidad, así como los datos epidemiológicos, lo factores de riesgo, el pronóstico, manejo y perspectivas futuras.
Subject(s)
Humans , Dyskinesia, Drug-Induced/diagnosis , Dyskinesia, Drug-Induced/epidemiology , Dyskinesia, Drug-Induced/etiology , Dyskinesia, Drug-Induced/physiopathology , Dyskinesia, Drug-Induced/therapy , Antipsychotic Agents/administration & dosage , Antipsychotic Agents/adverse effects , Risk FactorsABSTRACT
E apresentado um caso de discinesia tardia em uma menina de 7 anos de idade, que desde os 18 meses de idade faz uso de propericiazina. Faz-se breve revisao de literatura recente relativa a esta entidade na infancia. O motivo da consulta e a historia pregressa sao apresentados, bem como o quadro clinico encontrado e o tratamento realizado. E discutido o diagnostico enfatizando-se o diferencial com distonia e sindrome paradoxal da discenia tardia. Ao final, fazem-se recomendacoes