Journal
WORLD NEUROSURGERY
Volume 129, Issue -, Pages E803-E811Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.wneu.2019.06.037
Keywords
Body mass index; Endoscopic endonasal surgery; Hypothalamus; Pituitary; Subtotal resection
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OBJECTIVE: The treatment of hypothalamus-invading craniopharyngiomas, based on pediatric experience, is subtotal resection (STR) with radiotherapy. This strategy sometimes leads to uncontrollable tumor progression. In adults, with the use of endoscopic endonasal surgery (EES), does removing the hypothalamic part of the tumor-whenever possible-compromise the outcome of the patients? METHODS: We included adults with craniopharyngioma treated by a first EES in 2008-2016 by senior neurosurgeon (E.J.). Endocrine, ophthalmologic, and hypothalamic data were retrospectively collected, including body mass index (BMI), cognitive and social status, with a systematic follow-up interview. Magnetic resonance imaging scans were graded according to Puget classification: 0, no hypothalamic involvement; 1, hypothalamic displacement; and 2, hypothalamic involvement. Grade 2 tumors were separated into gross total resection (GTR) or STR. RESULTS: We included 22 patients aged 18-79 years. Presenting symptoms were visual (14, 64%), endocrine dysfunction (10, 45%), BMI >30 (8, 36%), and cognitive/ psychiatric impairment (9, 41%). Fourteen (64%) were grade 2 craniopharyngiomas. GTR was performed in 14 (64%) patients. Postoperatively, 12/14 (86%) cases improved visually, and 20 (91%) needed hormone replacement therapy. There was no difference in BMI evolution in the GTR versus STR group, cognitive status was stable or improved in all patients except 1;4/8 patients with STR experienced progression needing adjuvant treatment versus no patient with GTR. CONCLUSIONS: EES GTR of grade 2 craniopharyngiomas does not cause major hypothalamic worsening, in contrast with children operated by cranial approaches. The surgeon's experience is key in deciding when to stop the dissection. Offering GTR whenever possible aims at avoiding tumor progression and radiotherapy.
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