Cranial base reconstruction in patients with olfactory groove meningioma using endoscopic endonasal approaches

Abstract

Introduction: Reconstruction of the anterior cranial base for meningiomas of the olfactory groove through endoscopic endonasal approaches represents a high challenge, given the large tumor dimensions and their more ventral disposition in the cranial base. Objective: To describe the effectiveness of a cranial base repair strategy in patients with olfactory groove meningiomas, through endoscopic endonasal approaches. Method: A descriptive study was carried out on 11 patients from the Hermanos Ameijeiras Hospital who underwent surgery for meningiomas of the olfactory groove using the extended transcribiform endoscopic endonasal approach, in which a cranial base repair strategy was used that includes: Estimation of a safety index of the nasoseptal flap, method of space shortening of the nasoseptal flap, autologous elements, regenerative medicine and lumbar spinal drainage. For data analysis, absolute and relative frequencies were used as summary measures. Results: The strategy was effective in 100% of patients. A patient with crusted, rhinitis and nasal synechiae is reported. Conclusions: The present cranial base repair strategy for patients with olfactory groove meningioma, using endoscopic endonasal approaches, is effective, safe and reduces postoperative complications.

Keywords

• base del cráneo
• fibrina rica en plaquetas y leucocitos
• meningioma
• neuroendoscopía
• pérdida de líquido cefalorraquídeo.