Extended endoscopic transsphenoidal approach for extrasellar craniopharyngiomas

Area of Science:

• Neurosurgery
• Endoscopic Surgery
• Skull Base Surgery

Background:

• Suprasellar craniopharyngiomas traditionally treated with transcranial approaches.
• Transsphenoidal route historically limited to intrasellar or cystic lesions.
• Endoscopic advancements enable extended transsphenoidal approaches for complex tumors.

Purpose of the Study:

• Evaluate the efficacy of the extended endoscopic endonasal approach for suprasellar craniopharyngioma removal.
• Compare outcomes with traditional transcranial methods.
• Assess the safety and feasibility of this minimally invasive technique.

Main Methods:

• Retrospective study of 10 patients (2004-2006) with suprasellar craniopharyngiomas.
• Utilized an extended endoscopic transsphenoidal approach.
• Involved removal of sellar and sphenoidal bone structures with a "three-four hands" technique.

Main Results:

• Achieved total removal in 7 patients, subtotal in 2, and partial in 1.
• Improved visual acuity/fields in most patients; 3 developed new permanent diabetes insipidus.
• Two cerebrospinal fluid leaks resolved with endoscopic revision; no carotid injuries or airway issues.

Conclusions:

• The extended endoscopic endonasal approach is a promising alternative for selected suprasellar craniopharyngiomas.
• Offers potential benefits over transcranial approaches.
• Requires careful patient selection and skilled surgical technique.