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Previous issue date: 2005-08-24 / Objective: To compare the neuropsychological effects of anterior temporal lobectomy (ATL) and selective amygdalohippocampectomy (AH) on memory tests, and to determine which variables are correlated with post-operative memory deficits.Methodology: It was compared changes in neuropsychological scores in 154 patients who underwent temporal lobe epilepsy due hippocampal sclerosis (ATL n= 63 or AH n=91). We assessed decline in memory as measured by the Weschler Memory Scale-Revised (WMS-R), and Rey Verbal Auditory Learning Test (RAVLT). Deriving logistic regression equation was used to the following measures variables: type of surgery, seizure outcome, age onset, manual dominance, side of resection, timing of postoperative assessment and level of education.Results: No differences were found on memory immediate recall (logical memory and visual reproduction) between patients who underwent ATL or AH (p>0,05). On the other hand, the delayed recall presented a significant decrease after ATL on verbal (p=0,007) and visual memory test (p=0,03). Better verbal memory performance showed higher risk of suffering post surgery decrease, but this association was not observed on visual memory scores. Losses in verbal memory were higher after left side surgery. Visual memory was founded independent of the side of resection. No specific association was detected between memory performance after surgery and age at onset seizure, seizure control, manual dominance and timing of postoperative assessment. These findings evidence that lower level of education was associated with memory and learning impairment after both type of surgery.Conclusion: Losses on delayed recall both verbal and visual memory tests were increased after LTA than AH. Left temporal lobe excisions showed a negative impact on verbal memory, but decrease on visual memory after right temporal lobe resection was not observed. Better performance on verbal memory test on presurgical assessment is at higher risk of suffering post surgery decrease. / Objetivo: Comparar os efeitos das duas t?cnicas cir?rgicas, lobectomia temporal anterior (LTA) e amigdalohipocampectomia seletiva (AH) no desempenho de mem?ria em pacientes com epilepsia refrat?ria ao tratamento medicamentoso, que apresentavam esclerose mesial temporal (EMT). Al?m disso, a pesquisa visa determinar as vari?veis que s?o correlacionadas com os d?ficits de mem?ria no per?odo p?s-operat?rio. Metodologia: Foram comparadas as mudan?as nos resultados dos testes de mem?ria em 154 pacientes submetidos a cirurgia do lobo temporal devido a esclerose hipocampal (LTA n=63 ou AH n=91). O desempenho de mem?ria foi analisado a partir da Escala de Mem?ria Weschler revisada (WMS-R) e do teste de aprendizado verbal de Rey (APVER). A regress?o log?stica foi utilizada para avaliar o impacto na mem?ria das vari?veis: tipo de cirurgia, idade de in?cio das crises, lobo temporal operado, tempo entre as avalia??es, escolaridade e domin?ncia manual. Resultados: N?o foram encontradas diferen?as significativas entre as t?cnicas cir?rgicas no que diz respeito ao desempenho de mem?ria imediata tanto verbal, quanto visual e aprendizado verbal (p>O,O5). No entanto, na t?cnica LTA, observou-se um pior desempenho de mem?ria tardia, tanto em rela??o a mem?ria verbal (p=O,OO7), quanto a mem?ria visual (p=O,O3). Quando o lobo temporal esquerdo foi submetido a interven??o cir?rgica, este foi significativo em rela??o aos testes de mem?ria verbal imediata e tardia. A escolaridade influenciou significativamente em todos os testes. As vari?veis domin?ncia manual, idade de in?cio das crises, melhora da freq??ncia das crises epil?pticas e o tempo entre as avalia??es n?o mostraram impacto significativo sobre nenhum dos testes de mem?ria avaliados. Conclus?o: A LTA foi mais prejudicial que a AH quando foi avaliada a recorda??o tardia (mem?ria tardia) tanto verbal, quanto visual.A ressec??o do LTD n?o se relacionou a preju?zos de mem?ria visual no per?odo p?s-cir?rgico. A ressec??o do LTE induziu perda de mem?ria verbal. O melhor desempenho de mem?ria verbal dos pacientes antes da cirurgia correlacionou se com o pior desempenho ap?s a cirurgia. A baixa escolaridade apresenta um efeito negativo nos escores de todos os testes de mem?ria no per?odo p?s-cir?rgico.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/1652 |
| Date | 24 August 2005 |
| Creators | Azambuja, Luciana Schermann |
| Contributors | Portuguez, Mirna Wetters |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Medicina e Ci?ncias da Sa?de, PUCRS, BR, Faculdade de Medicina |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 7620745074616285884, 500, 600, -8624664729441623247 |
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