J Neurol Surg B Skull Base 2012; 73(05): 342-351
DOI: 10.1055/s-0032-1322796
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Endoscopic Endonasal Access to the Jugular Foramen: Defining the Surgical Approach

Dennis L.Y. Lee
1   Department of Ear, Nose and Throat, United Christian Hospital, Affiliated Unit of the Chinese University of Hong Kong, Kwun Tong, New Kowloon, Hong Kong
,
Edward D. McCoul
2   Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York, United States
,
Vijay K. Anand
2   Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York, United States
,
Theodore H. Schwartz
2   Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York, United States
3   Department of Neurological Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York, United States
4   Department of Neurology and Neuroscience, New York Presbyterian Hospital, Weill Cornell Medical College, New York, New York, United States
› Author Affiliations
Further Information

Publication History

09 August 2011

12 February 2012

Publication Date:
14 August 2012 (online)

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Abstract

Introduction The endoscopic endonasal approach to the parapharyngeal space (PPS) and jugular foramen is not well defined. We sought to systematically define the important landmarks and limitations of this new surgical technique using an endoscopic transmaxillary transpterygoid corridor.

Methods Endoscopic dissection was performed in both sides of two latex-injected cadaver heads. Left-sided dissections were facilitated by the addition of a sublabial maxillary antrostomy. The pterygopalatine fossa, infratemporal fossa, and PPS were sequentially dissected and the endoscopic perspective was examined. Measurements were obtained from the surgical orifices to the upper cervical internal carotid artery (ICA) and internal jugular vein (IJV).

Results Successful access to the PPS and jugular foramen was achieved in each dissection. The lateral pterygoid plate, mandibular branch of the trigeminal nerve, middle meningeal artery, levator veli palatini muscle, Eustachian tube, and stylopharyngeal fascia were identified as landmarks for the upper cervical ICA and the IJV. The mean distance from the nasal sill was markedly greater than from an ipsilateral sublabial antrostomy.

Conclusion The endoscopic endonasal approach can provide adequate access to the PPS, carotid sheath, and jugular foramen. Multiple landmarks are useful to guide the dissection within these deep spaces and may facilitate the clinical application of this approach.