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Biopsy of Brainstem Gliomas Using Flexible Endoscopes
Jaime Gerardo Torres-Corzo1, Jose Sanchez-Rodriguez1, Juan Lucino Castillo-Rueda1
1Department of Neurosurgery, Hospital Central, "Dr. Ignacio Morones Prieto," San Luis Potosi, San Luis Potosi, Mexico.
Summary
Flexible neuroendoscopes enable safe and effective transventricular brainstem biopsy for diagnosing tumors and treating obstructive hydrocephalus. This minimally invasive approach offers a valuable option for complex brainstem lesions.
Area of Science:
- Neurosurgery
- Neurology
- Pediatric Neurosurgery
Background:
- Brainstem tumors present diagnostic and therapeutic challenges.
- Obstructive hydrocephalus is a common complication of brainstem tumors.
- Traditional biopsy methods can be invasive and carry significant risks.
Purpose of the Study:
- To evaluate the safety and efficacy of transventricular brainstem biopsy using flexible neuroendoscopes.
- To assess the diagnostic yield of neuroendoscopic biopsies for brainstem lesions.
- To determine the utility of this technique in managing associated obstructive hydrocephalus.
Main Methods:
- A retrospective review of patients undergoing transventricular brainstem biopsy with flexible neuroendoscopes.
- Histopathologic diagnosis of brainstem lesions.
- Management of obstructive hydrocephalus concurrently with biopsy.
- Clinical and radiological follow-up at 1, 3, 6, 12 months, and annually.
Main Results:
- Seven patients (five pediatric) underwent the procedure.
- Tumor types included various astrocytomas (anaplastic, pilocytic, low-grade) in different brainstem locations.
- Successful histopathologic diagnosis was achieved.
- Four patients with obstructive hydrocephalus were managed effectively.
- The transventricular approach provided access to ventral and aqueductal tumors.
Conclusions:
- Flexible neuroendoscopy is a safe, effective, and useful tool for brainstem tumor biopsy.
- The technique facilitates diagnosis of ventral, dorsal, and diffuse brainstem tumors.
- It offers a simultaneous solution for treating obstructive hydrocephalus secondary to brainstem tumors.
