Resumen

HERNANDEZ SALAZAR, MANUEL et al. Utilidad de la biopsia estereotáctica en lesiones del tallo cerebral. Arch. Neurocien. (Mex., D.F.) [online]. 2004, vol.9, n.2, pp.69-75. ISSN 1028-5938.

The stereotactic biopsy has been recently developed from 80's for brainstem lesions, and is one of the most update and promising fields of medicine, despite of its potential complication, however most of the trials has shown its reliance and accuracy. Patients and methods: from 85 consecutive stereotactic biopsies, 11 were made for brainstem lesions (13%) stereotactically. Diagnostics were obtained by preoperative MR and CT which confirmed the brainstem lesions. It was made a frequency chart with age, gender, location and extension of the lesion, imagenologic and clinic features, as well as complementary treatments and survival time. An Excel chart was made with all data and was submitted to descriptive and inferential statistical methods. Results: fatal outcome in a period less than 6 months was in 45.5% (n=5), more than 6 months 54.5% (n=6), nevertheless the survival time in all the cases was 7.7 months ±6.8, we have to clear up that in 80% (n=9) of the cases in this study the survival time was 11 months. Conclusions: the complications rates exists but the benefit is justified due to illness severity with a confirmed diagnostic. A stereotactic approach to the brainstem lesions can provide a field of positive histological diagnosis with a low mortality.

Palabras llave : stereotactic biopsy; bramistem lesions; utility.