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British Journal of Radiology 75 (2002),345-350 © 2002 The British Institute of Radiology

Full Paper

The use of stereotactic navigation guidance in minimally invasive transnasal nasopharyngectomy: a comparison with the conventional open transfacial approach

E W H To, FRCS 1 E H Y Yuen, FRCR 2 W M Tsang, FRACDS 4 E C H Lai, MBChB 1 G K C Wong, AFRCS 3 D T F Sun, FRCS 3 D T M Chan, FRCS 3 J M K Lam, FRCS 3 A Ahuja, FRCR 2 and W S Poon, FRCS 3

1 Division of Head and Neck—Plastic and Reconstructive Surgery, Department of Surgery, 2 Department of Diagnostic Radiology and Organ Imaging and 3 Division of Neurosurgery, Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong and 4 Oral Maxillofacial Surgery and Dental Unit, Prince of Wales Hospital, Shatin, Hong Kong

The purpose of this paper is to study the efficacy of applying stereotactic navigation guidance to nasopharyngectomy via a minimally invasive transnasal approach as compared with the conventional open transfacial approaches. The nasopharynx is the centre of the anterior skull base, which is remote from the surface of the facial skeleton. It is well known that there are several surgical approaches for access to resect tumours from the nasopharynx. However, the open techniques have been associated with much morbidity and only provide access to, and identification of, the ipsilateral internal carotid artery that forms the lateral boundary and resection limit of the nasopharynx. The coupling of stereotactic navigation guidance and a minimally invasive transnasal approach for nasopharyngectomy allows the surgeon to identify and protect the internal carotid artery bilaterally at the nasopharynx. This technique reduces operating time and morbidity to a minimum and yet is oncologically sound for resecting nasopharyngeal lesions. We compare 15 patients who underwent the stereotactic navigation guidance approach with 20 patients who received a conventional open transfacial approach.






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