Abstract
Background
The endoscopic endonasal approach (EEA) has become increasingly employed in the treatment of suprasellar meningiomas. These tumors often cause visual symptoms due to compression of the anterior visual pathway. We aimed to examine long-term visual outcomes after EEA for optic nerve decompression and resection of suprasellar meningioma at our center, and to identify preoperative factors predictive of postoperative visual improvement.
Methods
We performed a retrospective cohort study on 27 patients who underwent the EEA for resection of meningiomas extending into the suprasellar cistern and decompression of anterior visual pathway between January 1, 2005, and March 1, 2019.
Results
We treated 8 male and 19 female patients, with a mean follow-up of 7.6 years. The mean age of our patients at initial presentation was 60.1 years. Eighteen patients (66.7%) presented with visual acuity deficits, and 12 (44.4%) patients presented with visual field deficits. Postoperatively, 11 patients had improved visual acuity, 6 had stable visual acuity, and 1 patient had slow and progressive decline of visual acuity; 5 patients had improved visual field, 6 had stable visual field, and 1 patient had slow and progressive decline in visual field. Patients less likely to have postoperative improvement of visual acuity were those with longer than 6-month duration of visual symptoms (P = 0.024*) as well as patients with the presence of a relative afferent pupillary defect (RAPD) (P = 0.023*).
Conclusion
The EEA can achieve good visual outcomes in patients harboring suprasellar meningiomas. Symptom duration of less than 6 months and lack of a RAPD were positive predictors of postoperative visual acuity.
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Abbreviations
- ACA:
-
Anterior cerebral artery
- CHI:
-
Optic chiasm
- CI:
-
Confidence interval
- CSF:
-
Cerebrospinal fluid
- DVT:
-
Deep vein thrombosis
- EEA:
-
Endoscopic endonasal approach
- GTR:
-
Gross total resection
- ICA:
-
nternal carotid artery
- INF:
-
Infundibulum
- LP:
-
Light perception
- MRI:
-
Magnetic resonance imaging
- NLP:
-
No light perception
- NTR:
-
Near total resection
- OCT:
-
Ocular coherence test
- ON:
-
Optic nerve
- OR:
-
Odds ratio
- PE:
-
Pulmonary embolism
- RAPD:
-
Relative afferent pupillary defect
- SHA:
-
Superior hypophyseal artery
- STR:
-
Subtotal resection
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Acknowledgments
We acknowledge Glen Oomen for his help with our illustration and Sang Woo Park for his assistance with the statistical analysis.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institution (Hamilton Integrated Research Ethics Board; McMaster University) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
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Presentation: This work was presented as a podium presentation on Feb 15, 2019 at the 29th Annual North American Skull Base Society Meeting in Orlando, USA. This work was also presented as a poster on June 19, 2019 at the 54th Annual Canadian Neurological Sciences Federation in Montreal, Canada.
This article is part of the Topical Collection on Brain Tumors
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Yang, K., Ellenbogen, Y., Dong, S. et al. The expanded endoscopic endonasal approach for suprasellar meningiomas: long-term outcomes in a single-center series of 27 patients. Acta Neurochir 162, 623–629 (2020). https://doi.org/10.1007/s00701-019-04113-x
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DOI: https://doi.org/10.1007/s00701-019-04113-x