Surgical treatment of tumors of the supplementary motor area

Alekseev I.M.

Pirogov National Medical Surgical Center

Zuev A.A.

Pirogov Russian National Research Medical University

SPIN RSCI: 9377-4574
Scopus AuthorID: 26424155600
ORCID: 0000-0003-2974-1462

Surgical treatment of tumors of the supplementary motor area

Authors:

Alekseev I.M., Zuev A.A.

More about the authors

Journal: Burdenko's Journal of Neurosurgery. 2023;87(1): 5‑14

DOI: 10.17116/neiro2023870115

Downloaded: 127

To cite this article:

Alekseev IM, Zuev AA. Surgical treatment of tumors of the supplementary motor area. Burdenko's Journal of Neurosurgery. 2023;87(1):5‑14. (In Russ., In Engl.)
https://doi.org/10.17116/neiro2023870115

Подписка 2025-2 (Burdenko's Journal of Neurosurgery)

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After surgical treatment of tumors of the supplementary motor area (SMA) post-operative speech and/or motor neurological deficit may occur.

OBJECTIVE

To determinate frequency and reversibility of such deficit and identify risk factors for its development.

MATERIAL AND METHODS

We retrospectively analyzed postoperative outcomes in 34 patients with SMA tumors. Pre- and postoperative neurological status, localization of tumors, extent of resection relative to adjacent regions and relationship of tumor with white matter tracts were assessed. We also analyzed the influence of these factors on the risk of postoperative neurological impairment.

RESULTS

Postoperative neurological impairment occurred in 47% of cases. Complete or significant regression was observed in all patients within 5.7 month after surgery. Major risk factors were lesion of dominant hemisphere (p=0.029), tumor spreading to primary motor cortex (p=0.018) and resection of SMA together with cingulate gyrus (p=0.000). Location of frontal aslant tract in dominant hemisphere just near the tumor contributed to disorders regarding speech initiation and fluency (p=0.016). Resection of SMA with cingulate gyrus in dominant hemisphere affected development of more serious speech disorders (p=0.003).

CONCLUSION

Surgery for SMA tumors is safe and followed by favorable functional outcomes.

Keywords:

supplementary motor area

frontal aslant tract

SMA syndrome

tumors of motor areas

Authors:

Alekseev I.M.

Pirogov National Medical Surgical Center

Zuev A.A.

Pirogov Russian National Research Medical University

SPIN RSCI: 9377-4574
Scopus AuthorID: 26424155600
ORCID: 0000-0003-2974-1462

Received:

24.05.2022

Accepted:

18.11.2022

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