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Endoscopic transnasal resection of optic pathway pilocytic astrocytoma

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Abstract

Purpose

Optic pathway gliomas (OPGs) are low-grade neoplasms that primarily affect children. The management of OPGs remains controversial. Reports on the use of the endoscopic endonasal approach (EEA) in OPGs are extremely limited, and no such reports exist on its utility for pediatric OPGs. Here, we report our results and experience with OPGs treated with the EEA.

Methods

We retrospectively reviewed the medical records of OPG patients who were treated surgically via the EEA at our institutions from 2015 to 2017. Data on the demographics, clinical presentation, surgical complications, clinical outcomes, radiological imaging, and visual outcomes were recorded for each patient.

Results

Four cases were identified, with visual disturbances being the predominant complaint. The mean patient age was 15.5 years. Three cases showed normal preoperative hormonal profiles, but one patient had hypothyroidism. All tumors identified in this study were World Health Organization grade I pilocytic astrocytomas. Surgical complications included hypopituitarism in two patients, meningitis in two patients, cerebrospinal fluid leak in one patient, and transient diabetes insipidus in one patient. No patient experienced worsening neurological or visual symptoms postoperatively.

Conclusions

Although our data are preliminary, the EEA provides a direct corridor to OPG with acceptable results in terms of tumor resection and visual outcomes. Hypothalamic-pituitary axis dysfunction remains a limitation of any treatment modality for OPGs and should be considered whenever possible. Definitive conclusions are pending as the learning curve of this approach is steep. Further work is needed to understand patient selection for such an approach.

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Acknowledgments

We would like to thank the College of Medicine Research Center, Deanship of Scientific Research at King Saud University for supporting this research.

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Author notes

  1. Sarah Bin Abdulqader and Ziyad Al-Ajlan contributed equally to this work as co-first authors.

Authors and Affiliations

  1. Department of Neurosurgery, King Saud University, Riyadh, Saudi Arabia

    Sarah Bin Abdulqader, Ziyad Al-Ajlan, Abdulrahman Albakr & Abdulrazag Ajlan

  2. Department of Neurosurgery, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia

    Wisam Issawi & Mohammed Al-Bar

  3. Department of Neurosurgery, Cleveland Clinic Foundation, 9500 Euclid Avenue/CA-5, Cleveland, OH, 44195, USA

    Pablo F. Recinos

  4. Minimally Invasive Cranial Base and Pituitary Surgery Program, Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic Foundation, 9500 Euclid Avenue/CA-5, Cleveland, OH, 44195, USA

    Pablo F. Recinos

  5. Department of Otolaryngology-Head and Neck Surgery, King Saud University, Riyadh, Saudi Arabia

    Saad Alsaleh

  6. Department of Neurosurgery, Stanford University School of Medicine, 300 Pasteur Drive, Palo Alto, Stanford, CA, 94305, USA

    Abdulrazag Ajlan

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  1. Sarah Bin Abdulqader
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  2. Ziyad Al-Ajlan
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Correspondence to Abdulrazag Ajlan.

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Bin Abdulqader, S., Al-Ajlan, Z., Albakr, A. et al. Endoscopic transnasal resection of optic pathway pilocytic astrocytoma. Childs Nerv Syst 35, 73–81 (2019). https://doi.org/10.1007/s00381-018-3994-4

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  • DOI: https://doi.org/10.1007/s00381-018-3994-4

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