Section: 
Otiology
OtiologyExperience with surgical removal of temporal bone paraganglioma using 445 nm laser in inert gas atmosphere
V. S. Isachenko (1), K. I. Sotnikova (2), M. L. Blinova (3), P. A. Shamkina (4)
(1), (2), (3), (4) Saint Petersburg Research Institute of Ear, Nose, Throat, and Speech, Saint Petersburg, 190013, Russian Federation, (1) Saint Petersburg State University, Saint Petersburg, 199034, Russian Federation
UDK: УДК 616.288.5-006.488-089:615.849.19:621.373.5
DOI: https://doi.org/10.18692/1810-4800-2026-1-66-73
ABSTRACT
Abstract. A paraganglioma is a benign tumor, which is a slow-growing neoplasm arising from foci of chemoreceptor tissue. They can range from small microscopic lesions to large destructive formations involving the entire temporal bone, which leads to various neurological disorders and complete auditory disability. Therefore, surgical treatment should use the safest possible methods to minimize postoperative complications. After all, the removal of paragangliomas of the tympanic cavity is a high-risk surgery, given the vascular nature of the tumor and the proximity of vital structures. The aim of this work is to present the best result of removing paragangliomas of the temporal bones using a blue laser in an inert gas atmosphere. To date, various lasers are used for middle ear otosurgery, which is because of the experience and choice of the surgeon, as well as the equipment of the operating unit. The most optimal laser to treat middle ear paragangliomas is a 445 nm laser, belonging to the blue electromagnetic spectrum. This laser has a maximum absorption coefficient in hemoglobin and oxyhemoglobin chromophores, which causes its pronounced angiolytic and resection properties. Consequently, the removal of highly vascularized formations in such a minimal space can be performed with minimal blood loss and with careful attention to surrounding structures. This work also presents two clinical cases, which clearly show that this method reduces blood loss and improves results in the postoperative period.
Publication date:
24.02.2026
Keywords:
paraganglioma, True Blue laser, helium, benign neoplasm For citation:
Isachenko V. S., Sotnikova K. I., Blinova M. L., Shamkina P. A. Experience with surgical removal of temporal bone paraganglioma using 445 nm laser in inert gas atmosphere. Russian Otorhinolaryngology. 2026;25(1):66-73. (In Russ.) https://doi.org/10.18692/1810-4800-2026-1-66-73