Algorithm of preoperative planning and method of endoscopic endonasal surgical treatment of patients with malignant tumours of the paranasal sinuses and nasal cavity

Objective. To reduce the number of complications and traumatic surgical intervention in the treatment of malignant tumors of the paranasal sinuses and nasal cavity by introducing the algorithm of preoperative planning and the method of endoscopic endonasal surgical treatment, with improved functional and aesthetic results while maintaining oncological efficacy.

Materials and methods. The developed algorithm of preoperative planning, based on a comprehensive assessment of the anatomical structures of the skull using multispiral computed tomography and magnetic resonance imaging, consists of 8 stages and allows individualising surgical access to the paranasal sinuses and nasal cavity depending on the extent of the tumor. Endoscopic surgical treatment according to this technique, which includes 17 stages, was applied in 44 patients with malignant tumors of the nasal cavity and paranasal sinuses.

Results. Application of the proposed algorithm of preoperative planning and method of surgical treatment allowed minimising the number of intra- and postoperative complications and ensuring radical surgical intervention in 100 % of treated patients.

Conclusions. The developed algorithm of preoperative planning and the method of endoscopic endonasal surgical treatment of patients with malignant tumors of the paranasal sinuses and nasal cavity proved to be effective. They allowed to improve the quality of surgical interventions, minimise the risks of complications and improve functional and aesthetic results in patients suffering from malignant tumours of the paranasal sinuses and nasal cavity.

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