CLINICAL FEATURES, IMAGING CHARACTERISTICS, AND SURGICAL OUTCOMES FOR TRANSNASAL ENDOSCOPIC CLIVAL CHORDOMA RESECTION

Khiêm Trần Thiện, Tiên Trần Tiểu, Bảo Trần Huy Hoàn, Phương Huỳnh Lê

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Abstract

Objective: To evaluate the surgical results of an endoscopic endonasal approach for clival chordomas. Methods: Retrospective and case series, of 31 patients were performed via the endoscopic transnasal approach for treating clival chordomas at the Neurosurgery Department of Cho Ray Hospital from 06/2018 to 06/2024.  Results: The mean age of the 14 male and 17 female patients was 42.8 years (ranging from 23 to 69 years). Clinical features consisted of headache (83.9%), cranial nerve VI palsy (29%), visual acuity decrease (80.6%), bitemporal hemianopsia (38.7%), and cranial nerve III palsy (9.7%). 100% of patients obtained brain MRI, indicating tumors located at the upper-middle clivus (61.3%), upper-third (6.5%), middle-third (3.2%), and completely invaded clivus (22.6%). The mean maximum diameter of tumors was 43.2 mm (17.6 to 67 mm). 38.7% of tumors invade cavernous sinus and 58.1% spread to subdural space. All of the cases were performed via endoscopic transnasal approaches. Gross total removal was achieved in 58% of cases, subtotal removal (29%), and partial removal (12.9%). No mortality occurred, 1 patient (3.2%) had postoperative meningitis, CSF leak occurred in 2 patient (6.4%), and a vision deficit was recorded (3.2%). The mean follow-up period was 19.45 months (ranged 1 to 69 months). The recent postoperative mean KPS score was 88.7 (ranged 80 to 90). The long-term results: 51.6% of patients were cured, 35.5% were under control, and the recurrence rate was 12.9%. Conclusions: The endoscopic transnasal approach is safe and efficient for treating clival chordomas.

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References

1. Greenberg, Mark S, Handbook of Neurosurgery, ed. 9th, Thieme Medical Publishers. 2020.
2. Amit, Moran, et al., "Treatment and outcome of patients with skull base chordoma: a meta-analysis". 2014; 75(06), pp. 383-390.
3. da Silva, Harley Brito, et al., "Cranial chordoma: a new preoperative grading system". 2018; 83(3), pp. 403-415.
4. Dehdashti, Amir R, et al., "Expanded endoscopic endonasal approach for anterior cranial base and suprasellar lesions: indications and limitations". 2009; 64(4), pp. 677-689.
5. Morita, Akio, Sekhar, Laligam N, and Wright, Donald C %J Cancer control, "Current concepts in the management of tumors of the skull base". 1998; 5(2), pp. 138-149.
6. Pamir, M. Necmettin, Al-Mefty, Ossama, and Borda, Luis A. B., "Chordomas: Technologies, Techiques, and Treatment Strategies". 2016.
7. Quinones-Hinojosa, Alfredo, Schmidek and Sweet: Operative Neurosurgical Techniques, ed. 6th, Elsevier. 2012
8. Samii, Madjid, et al., "Surgical treatment of epidermoid cysts of the cerebellopontine angle". 1996; 84(1), pp. 14-19.
9. Shkarubo, Alexey N, et al., "Endoscopic endonasal transclival removal of tumors of the clivus and anterior region of the posterior cranial fossa (results of surgical treatment of 140 patients)". 2018; 4, pp. 1-14.
10. Winn, H. Richard (2022), Youmans and Winn Neurological Surgery, ed. 8th, Elsevier, 2022: 1365-1373.